CN117420082A - Online water quality monitoring system and online water quality monitoring method - Google Patents
Online water quality monitoring system and online water quality monitoring method Download PDFInfo
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- CN117420082A CN117420082A CN202311733155.1A CN202311733155A CN117420082A CN 117420082 A CN117420082 A CN 117420082A CN 202311733155 A CN202311733155 A CN 202311733155A CN 117420082 A CN117420082 A CN 117420082A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 266
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002351 wastewater Substances 0.000 claims abstract description 139
- 238000005070 sampling Methods 0.000 claims abstract description 34
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims description 43
- 238000001914 filtration Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000003116 impacting effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000006424 Flood reaction Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000007074 heterocyclization reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 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
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
-
- 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
-
- 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
- G01N1/34—Purifying; Cleaning
-
- 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
Abstract
The invention discloses an online water quality monitoring system and an online water quality monitoring method, which relate to the technical field of water quality monitoring and comprise a monitoring cylinder body arranged in a discharge pipe, wherein a sampling port is arranged at the right side end of the monitoring cylinder body. Receiving the wastewater flowing leftwards in the discharge pipe through the sampling port, blocking and turning the wastewater by means of the conical section of the current carrier, and performing primary deceleration; then, after the wastewater floods into the upper cavity and the lower cavity, the wastewater collides with the left side wall surfaces of the upper cavity and the lower cavity to perform secondary speed reduction; and then the waste water is converged into the monitoring cavity, the water outlet on the left side of the monitoring cavity can discharge the waste water in the monitoring cavity, and the fluidity of the waste water in the monitoring cavity can be slowed down because the caliber of the water outlet is smaller than that of the sampling port, so that the waste water is fully accumulated in the monitoring cavity. By the method, the flow rate of the wastewater can be reduced, the accuracy of the detection result of on-line monitoring is improved, and the subsequent new wastewater can enter the monitoring cavity, so that the wastewater entering the monitoring cavity from the beginning is not always monitored.
Description
Technical Field
The invention relates to the technical field of water quality monitoring, in particular to a water quality on-line monitoring system.
Background
In the chemical industry, most of industrial wastewater is high-concentration organic wastewater (the raw materials and semi-finished products involved in the production process are various), COD in the wastewater reaches tens of thousands or even hundreds of thousands mg/L, the wastewater has extremely complex components, and various chemical substances such as heterocyclization compounds, aromatic compounds, mercury, chromium, copper toxic inorganic substances and organic solvents such as ethanol, benzene, chloroform and the like are contained in the wastewater.
The current process flow for wastewater treatment is that the discharged production wastewater is firstly lifted to an adjusting tank through a grid through an enterprise sewage pipe network by a lifting pump to adjust the pH value of the wastewater, remove large particles, then lifted to a coagulating sedimentation tank by the lifting pump, started up a stirrer, adjusted by sodium hydroxide, added with PAC and PAM, and then left for a period of time to discharge water. The effluent of the coagulating sedimentation tank enters a Fenton oxidation tank through an intermediate tank, hydrochloric acid is used for adjusting, ferrous sulfate and hydrogen peroxide are added according to a certain proportion, stirring is carried out, anaerobic reaction is carried out, macromolecular organic matters are decomposed into micromolecular organic matters, and finally the micromolecular organic matters are discharged through a waste water discharge pipe.
When the wastewater is discharged after being treated, a probe of a water quality monitor is required to monitor the components and water quality indexes of the wastewater, the water quality monitoring is a process of monitoring and measuring the types of pollutants in water, the concentration and the change trend of various pollutants and evaluating the water quality condition, and the rapid flow during the wastewater discharge can influence the detection result of the on-line monitoring when the components of the wastewater are complex and monitored in real time, so that improvement is required.
Disclosure of Invention
The invention aims to solve the problem that in the prior art, when wastewater is discharged, the rapidly flowing wastewater can influence the detection result of on-line monitoring.
The second purpose of the invention is to provide an on-line water quality monitoring method.
In order to achieve one of the above purposes, the present invention adopts the following technical scheme: the utility model provides a quality of water on-line monitoring system, is including being arranged in the monitoring cylinder body of blow off pipe, monitoring cylinder body right side end is equipped with the sample connection, be equipped with the baffle in the inner chamber of monitoring cylinder body, the right-hand member of baffle is the toper section, the upper surface of toper section with leave first overflow clearance between the inner chamber upper wall of monitoring cylinder body, the lower surface of toper section with leave the second overflow clearance between the inner chamber lower wall of monitoring cylinder body, first overflow clearance with second overflow clearance intercommunication the sample connection.
The monitoring cylinder body inner cavity comprises an upper cavity and a lower cavity, the upper cavity is communicated with the first overflow gap, and the lower cavity is communicated with the second overflow gap.
The utility model discloses a fluid-conducting body, including the cavity that monitors, be equipped with the monitoring chamber in the body that leads, the monitoring chamber is located go up the cavity with down between the cavity, the monitoring chamber with go up through last filtration pore intercommunication between the cavity, the monitoring chamber with pass through down filtration pore intercommunication between the cavity down.
And the left side of the monitoring cavity is provided with a water outlet, and the caliber of the water outlet is smaller than that of the sampling port.
The monitoring cavity is internally provided with a monitoring rod, and the monitoring rod is connected with a water quality monitoring probe.
In the above technical scheme, when the embodiment of the invention is used, the monitoring cylinder body is arranged in the discharge pipe, and then when the discharge pipe discharges waste water, the waste water impacts the diversion body along the sampling port of the monitoring cylinder body to perform primary waste water flow speed reduction.
And then guiding the wastewater through the conical section of the current guide body, so that the wastewater flows upwards to the upper cavity along the first overflow gap, and flows downwards to the lower cavity along the second overflow gap, and the secondary wastewater flow speed reduction is performed.
And then the waste water in the upper cavity enters the monitoring cavity through the upper filtering hole, the waste water in the lower cavity is stored, overflows upwards into the monitoring cavity through the lower filtering hole, and the waste water in the monitoring cavity is discharged into the discharge pipe through the water outlet.
When the waste water in the monitoring cavity is full, the water inflow of the sampling port and the water outflow of the water outlet are balanced, and the fluidity of the waste water in the monitoring cavity is lower than that of the waste water in the discharge pipe.
Finally, the wastewater in the monitoring cavity is monitored by a water quality monitoring probe in the monitoring rod.
Further, in an embodiment of the present invention, the fluid director and the monitoring cylinder are in an integral structure. Or the flow guide body and the monitoring cylinder body are integrally injection molded.
Further, in the embodiment of the invention, a control valve is arranged at the water outlet. The water yield at the water outlet is controlled by a control valve. If the control valve is arranged at the water outlet, the caliber of the water outlet is not required to be smaller than that of the sampling port.
Further, in the embodiment of the invention, a semi-open avoidance port is formed in the side end of the monitoring rod, and the water quality monitoring probe is installed in the avoidance port.
Furthermore, in the embodiment of the invention, an optical probe is also installed in the avoidance port.
Still further, in an embodiment of the present invention, the monitoring cylinder has a tip, the tip is provided with a through hole, the through hole is connected to the upper cavity, and a sealing ring is provided in the through hole.
An upper opening is arranged between the monitoring cavity and the upper cavity, a lower opening is arranged between the monitoring cavity and the lower cavity, an upper pipe sleeve is arranged on the upper opening, a lower pipe sleeve is arranged on the lower opening, and the through hole, the upper pipe sleeve and the lower pipe sleeve are coaxial.
The water quality on-line monitoring system further comprises a cover assembly, the cover assembly is in threaded connection with the end head, the monitoring rod passes through the central hole of the cover assembly from top to bottom, and the through hole, the upper pipe sleeve and the lower pipe sleeve enable the bottom end of the monitoring rod to be embedded into the bottom of the lower cavity.
Still further, in an embodiment of the present invention, the top end of the monitoring rod is located above the cover assembly, and a terminal is mounted on the top end of the monitoring rod, and the terminal is connected to the water quality monitoring probe and the optical probe through a wired or wireless communication manner, and the terminal is connected to the analysis detector. If the water quality monitoring probe is connected with the water quality analysis detector through the wiring end, the optical probe is connected with the spectrum analysis detector through the wiring end.
When the surface of the water quality monitoring probe needs to be cleaned, the cover assembly on the monitoring cylinder body is rotated down, so that the cover assembly is separated from the monitoring cylinder body, and then the cover assembly and the monitoring rod are lifted upwards, so that the monitoring rod is separated from the upper pipe sleeve and the lower pipe sleeve upwards, and the water quality monitoring probe in the monitoring rod is moved out of the monitoring cylinder body for cleaning. And resetting the monitoring rod and the cover assembly after cleaning. The structure is simple, and the water quality monitoring probe and the optical probe are convenient to clean.
The beneficial effects of the invention are as follows:
according to the invention, the waste water flowing leftwards in the discharge pipe is received through the sampling port, and the waste water is blocked and turned by means of the conical section of the guide body, so that the primary speed reduction is performed; then, after the wastewater floods into the upper cavity and the lower cavity, the wastewater collides with the left side wall surfaces of the upper cavity and the lower cavity to perform secondary speed reduction; and then the waste water is converged into the monitoring cavity, the water outlet on the left side of the monitoring cavity can discharge the waste water in the monitoring cavity, and the fluidity of the waste water in the monitoring cavity can be slowed down because the caliber of the water outlet is smaller than that of the sampling port, so that the waste water is fully accumulated in the monitoring cavity. By the method, the flow rate of the wastewater can be reduced, the accuracy of the detection result of on-line monitoring is improved, and the subsequent new wastewater can enter the monitoring cavity, so that the wastewater entering the monitoring cavity from the beginning is not always monitored.
In order to achieve the second purpose, the invention adopts the following technical scheme: an online water quality monitoring method is applied to the online water quality monitoring system in one of the purposes, and comprises the following steps:
the monitoring cylinder body is arranged in the discharge pipe, and then when the discharge pipe discharges waste water, the waste water impacts the diversion body along the sampling port of the monitoring cylinder body to perform primary waste water flow speed reduction.
And then guiding the wastewater through the conical section of the current guide body, so that the wastewater flows upwards to the upper cavity along the first overflow gap, and flows downwards to the lower cavity along the second overflow gap, and the secondary wastewater flow speed reduction is performed.
And then the waste water in the upper cavity enters the monitoring cavity through the upper filtering hole, the waste water in the lower cavity is stored, overflows upwards into the monitoring cavity through the lower filtering hole, and the waste water in the monitoring cavity is discharged into the discharge pipe through the water outlet.
When the waste water in the monitoring cavity is full, the water inflow of the sampling port and the water outflow of the water outlet are balanced, and the fluidity of the waste water in the monitoring cavity is lower than that of the waste water in the discharge pipe.
Finally, the wastewater in the monitoring cavity is monitored by a water quality monitoring probe in the monitoring rod.
According to the invention, the waste water flowing leftwards in the discharge pipe is received through the sampling port, and the waste water is blocked and turned by means of the conical section of the guide body, so that the primary speed reduction is performed; then, after the wastewater floods into the upper cavity and the lower cavity, the wastewater collides with the left side wall surfaces of the upper cavity and the lower cavity to perform secondary speed reduction; and then the waste water is converged into the monitoring cavity, the water outlet on the left side of the monitoring cavity can discharge the waste water in the monitoring cavity, and the fluidity of the waste water in the monitoring cavity can be slowed down because the caliber of the water outlet is smaller than that of the sampling port, so that the waste water is fully accumulated in the monitoring cavity. By the method, the flow rate of the wastewater can be reduced, the accuracy of the detection result of on-line monitoring is improved, and the subsequent new wastewater can enter the monitoring cavity, so that the wastewater entering the monitoring cavity from the beginning is not always monitored.
Further, in the embodiment of the present invention, in the above step, the water output of the water outlet is regulated and controlled by the control valve. And the fluidity of the wastewater in the monitoring cavity is regulated, so that the monitoring of the water quality is facilitated.
Further, in the embodiment of the invention, in the above steps, when the surface of the water quality monitoring probe needs to be cleaned, the cover assembly on the monitoring cylinder body is rotated down to separate the cover assembly from the monitoring cylinder body, and then the cover assembly and the monitoring rod are lifted upwards, so that the monitoring rod is separated from the upper pipe sleeve and the lower pipe sleeve upwards, and the water quality monitoring probe in the monitoring rod is moved out of the monitoring cylinder body for cleaning. Simple structure and convenience.
Drawings
FIG. 1 is a schematic diagram of a water quality on-line monitoring system according to an embodiment of the present invention.
FIG. 2 is a schematic plan view of a water quality monitoring rod according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of another embodiment of an on-line water quality monitoring system.
Fig. 4 is a schematic diagram showing the separation effect of the monitoring cylinder and the monitoring rod according to the embodiment of the invention.
10. The monitoring cylinder body, 11, the sampling port, 12, the first overflow gap, 13, the second overflow gap, 14, the upper cavity, 15, the lower cavity, 16, the end head, 17, the through hole, 18 and the sealing ring;
20. the device comprises a current carrier body, 21, a conical section, 22, a monitoring cavity, 23, an upper filter hole, 24, a lower filter hole, 25, a water outlet, 26, a control valve, 27, an upper pipe sleeve, 28 and a lower pipe sleeve;
30. the monitoring rod, 31, the avoiding port, 32, the water quality monitoring probe, 33, the optical probe, 34 and the wiring terminal;
40. and a cap assembly.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present invention more apparent, the embodiments of the present invention will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present invention, are intended to be illustrative only and not limiting of the embodiments of the present invention, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. However, it is apparent that. It will be apparent to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well known water quality online monitoring methods and structures have not been described in detail to avoid unnecessarily obscuring such embodiments. In addition, all embodiments may be used in combination with each other.
Example 1
The drawings of the specification are taken as the content of the specification, and the structural shapes, connection relationships, coordination relationships and positional relationships which can be obtained unambiguously in the drawings of the specification are understood as the content of the specification.
The utility model provides a quality of water on-line monitoring system, as shown in FIG. 1, including being arranged in the monitoring cylinder body 10 of blow off line, monitoring cylinder body 10 right side end is equipped with sampling port 11, is equipped with baffle 20 in the inner chamber of monitoring cylinder body 10, and the right-hand member of baffle 20 is toper section 21, leaves first excessive current clearance 12 between the upper surface of toper section 21 and the inner chamber upper wall of monitoring cylinder body 10, leaves second excessive current clearance 13 between the lower surface of toper section 21 and the inner chamber lower wall of monitoring cylinder body 10, and first excessive current clearance 12 and second excessive current clearance 13 intercommunication sampling port 11.
The inner cavity of the monitoring cylinder body 10 comprises an upper cavity 14 and a lower cavity 15, the upper cavity 14 is communicated with the first overflow gap 12, and the lower cavity 15 is communicated with the second overflow gap 13.
The current carrier 20 is provided with a monitoring cavity 22, the monitoring cavity 22 is positioned between the upper cavity 14 and the lower cavity 15, the monitoring cavity 22 is communicated with the upper cavity 14 through an upper filter hole 23, and the monitoring cavity 22 is communicated with the lower cavity 15 through a lower filter hole 24.
The upper filter holes 23 and the lower filter holes 24 can filter impurities in the wastewater, so that the monitoring of the wastewater is prevented from being influenced.
A water outlet 25 is formed in the left side of the monitoring cavity 22, and the caliber of the water outlet 25 is smaller than that of the sampling port 11.
The monitoring chamber 22 has a monitoring rod 30 therein, the monitoring rod 30 being connected to a water quality monitoring probe 32.
Working principle: the monitoring cylinder 10 is placed in the discharge pipe, and then when the discharge pipe discharges the wastewater, the wastewater impacts the current carrier 20 along the sampling port 11 of the monitoring cylinder 10 to perform the primary wastewater flow deceleration.
The wastewater is then directed by the tapered section 21 of the current carrier 20 such that the wastewater flows up the first flow gap 12 to the upper chamber 14 and down the second flow gap 13 to the lower chamber 15 for a secondary wastewater flow deceleration.
Then, the waste water in the upper cavity 14 enters the monitoring cavity 22 through the upper filtering holes 23, the waste water in the lower cavity 15 is stored, overflows upwards into the monitoring cavity 22 through the lower filtering holes 24, and is discharged into the discharge pipe through the water outlet 25, and the waste water in the monitoring cavity 22 is accumulated more and more until the waste water is fully accumulated because the caliber of the water outlet 25 is smaller than that of the sampling port 11.
When the waste water in the monitoring cavity 22 is full, the water inflow of the sampling port 11 and the water outflow of the water outlet 25 are balanced, and the fluidity of the waste water in the monitoring cavity 22 is lower than that of the waste water in the discharge pipe.
Finally, the wastewater in the monitoring cavity 22 is monitored by the water quality monitoring probe 32 in the monitoring rod 30.
The invention receives the waste water flowing leftwards in the discharge pipe through the sampling port 11, and blocks and changes the direction of the waste water by means of the conical section 21 of the current carrier 20 to perform primary deceleration; after the wastewater floods into the upper cavity 14 and the lower cavity 15, the wastewater collides with the left side wall surfaces of the upper cavity 14 and the lower cavity 15 to perform secondary deceleration; and then the waste water is gathered into the monitoring cavity 22, the water outlet 25 at the left side of the monitoring cavity 22 can discharge the waste water in the monitoring cavity 22, and the fluidity of the waste water in the monitoring cavity 22 can be slowed down because the caliber of the water outlet 25 is smaller than that of the sampling port 11, so that the waste water is fully accumulated in the monitoring cavity 22. By the method, the flow rate of the wastewater can be reduced, the accuracy of the detection result of the on-line monitoring is improved, and the subsequent new wastewater can enter the monitoring cavity 22, so that the wastewater entering the monitoring cavity 22 from the beginning is not always monitored.
As shown in fig. 1, the fluid director 20 and the monitoring cylinder 10 are in an integrated structure. Or the current carrier 20 is injection molded with the monitoring cylinder 10.
As shown in fig. 3, a control valve 26 is installed at the water outlet 25. The water outlet at the water outlet 25 is controlled by a control valve 26. If the control valve 26 is installed at the water outlet 25, the caliber of the water outlet 25 is not required to be smaller than that of the sampling port 11.
As shown in fig. 2, a semi-open avoidance port 31 is formed at the side end of the monitoring rod 30, and a water quality monitoring probe 32 is installed in the avoidance port 31. An optical probe 33 is also mounted in the escape port 31.
As shown in fig. 4, the monitoring cylinder 10 is provided with a head 16, the head 16 is provided with a through hole 17, the through hole 17 is connected with the upper cavity 14, and a sealing ring 18 is arranged in the through hole 17.
An upper opening is arranged between the monitoring cavity 22 and the upper cavity 14, a lower opening is arranged between the monitoring cavity 22 and the lower cavity 15, an upper pipe sleeve 27 is arranged on the upper opening, a lower pipe sleeve 28 is arranged on the lower opening, and the through hole 17, the upper pipe sleeve 27 and the lower pipe sleeve 28 are coaxial.
The water quality on-line monitoring system further comprises a cover assembly 40, wherein the cover assembly 40 is in threaded connection with the end head 16, the monitoring rod 30 passes through a central hole of the cover assembly 40 from top to bottom, and the through hole 17, the upper pipe sleeve 27 and the lower pipe sleeve 28 are formed in such a way that the bottom end of the monitoring rod 30 is embedded in the bottom of the lower cavity 15.
The top of the monitoring rod 30 is positioned above the cover assembly 40, the top of the monitoring rod 30 is provided with a wiring terminal 34, the wiring terminal 34 is connected with the water quality monitoring probe 32 and the optical probe 33 in a wired or wireless communication mode, and the wiring terminal 34 is connected with an analysis detector. If the water quality monitoring probe 32 is connected with a water quality analysis detector through a terminal 34, the optical probe 33 is connected with a spectrum analysis detector through the terminal 34.
When the surface of the water quality monitoring probe 32 needs to be cleaned, the cover assembly 40 on the monitoring cylinder 10 is rotated down, so that the cover assembly 40 is separated from the monitoring cylinder 10, and then the cover assembly 40 and the monitoring rod 30 are lifted upwards, so that the monitoring rod 30 is separated from the upper pipe sleeve 27 and the lower pipe sleeve 28 upwards, and the water quality monitoring probe 32 in the monitoring rod 30 is moved out of the monitoring cylinder 10 for cleaning. The monitoring rod 30 and the cover assembly 40 are reset after cleaning. The structure is simple, and the water quality monitoring probe 32 and the optical probe 33 are convenient to clean.
Example 2
The online water quality monitoring method is applied to the online water quality monitoring system in the first embodiment, and comprises the following steps:
the monitoring cylinder 10 is placed in the discharge pipe, and then when the discharge pipe discharges the wastewater, the wastewater impacts the current carrier 20 along the sampling port 11 of the monitoring cylinder 10 to perform the primary wastewater flow deceleration.
The wastewater is then directed by the tapered section 21 of the current carrier 20 such that the wastewater flows up the first flow gap 12 to the upper chamber 14 and down the second flow gap 13 to the lower chamber 15 for a secondary wastewater flow deceleration.
Then, the waste water in the upper cavity 14 enters the monitoring cavity 22 through the upper filtering holes 23, the waste water in the lower cavity 15 is stored, overflows upwards into the monitoring cavity 22 through the lower filtering holes 24, and is discharged into the discharge pipe through the water outlet 25, and the waste water in the monitoring cavity 22 is accumulated more and more until the waste water is fully accumulated because the caliber of the water outlet 25 is smaller than that of the sampling port 11.
When the waste water in the monitoring cavity 22 is full, the water inflow of the sampling port 11 and the water outflow of the water outlet 25 are balanced, and the fluidity of the waste water in the monitoring cavity 22 is lower than that of the waste water in the discharge pipe.
Finally, the wastewater in the monitoring cavity 22 is monitored by the water quality monitoring probe 32 in the monitoring rod 30.
The invention receives the waste water flowing leftwards in the discharge pipe through the sampling port 11, and blocks and changes the direction of the waste water by means of the conical section 21 of the current carrier 20 to perform primary deceleration; after the wastewater floods into the upper cavity 14 and the lower cavity 15, the wastewater collides with the left side wall surfaces of the upper cavity 14 and the lower cavity 15 to perform secondary deceleration; and then the waste water is gathered into the monitoring cavity 22, the water outlet 25 at the left side of the monitoring cavity 22 can discharge the waste water in the monitoring cavity 22, and the fluidity of the waste water in the monitoring cavity 22 can be slowed down because the caliber of the water outlet 25 is smaller than that of the sampling port 11, so that the waste water is fully accumulated in the monitoring cavity 22. By the method, the flow rate of the wastewater can be reduced, the accuracy of the detection result of the on-line monitoring is improved, and the subsequent new wastewater can enter the monitoring cavity 22, so that the wastewater entering the monitoring cavity 22 from the beginning is not always monitored.
In the above steps, the water output of the water outlet 25 is regulated and controlled by the control valve 26. The fluidity of the wastewater in the monitoring chamber 22 is regulated, which is more beneficial to monitoring the water quality.
In the above steps, when the surface of the water quality monitoring probe 32 needs to be cleaned, the cover assembly 40 on the monitoring cylinder 10 is rotated down to separate the cover assembly 40 from the monitoring cylinder 10, and then the cover assembly 40 and the monitoring rod 30 are lifted upwards, so that the monitoring rod 30 is separated from the upper pipe sleeve 27 and the lower pipe sleeve 28 upwards, and the water quality monitoring probe 32 in the monitoring rod 30 is moved out of the monitoring cylinder 10 for cleaning. Simple structure and convenience.
While the foregoing describes the illustrative embodiments of the present invention so that those skilled in the art may understand the present invention, the present invention is not limited to the specific embodiments, and all inventive innovations utilizing the inventive concepts are herein within the scope of the present invention as defined and defined by the appended claims, as long as the various changes are within the spirit and scope of the present invention.
Claims (10)
1. The water quality online monitoring system is characterized by comprising a monitoring cylinder body arranged in a discharge pipe, wherein a sampling port is arranged at the right side end of the monitoring cylinder body, a current guide body is arranged in an inner cavity of the monitoring cylinder body, the right end of the current guide body is a conical section, a first overflow gap is reserved between the upper surface of the conical section and the upper wall surface of the inner cavity of the monitoring cylinder body, a second overflow gap is reserved between the lower surface of the conical section and the lower wall surface of the inner cavity of the monitoring cylinder body, and the first overflow gap is communicated with the sampling port;
the inner cavity of the monitoring cylinder body comprises an upper cavity and a lower cavity, the upper cavity is communicated with the first overflow gap, and the lower cavity is communicated with the second overflow gap;
the flow guide body is internally provided with a monitoring cavity, the monitoring cavity is positioned between the upper cavity and the lower cavity, the monitoring cavity is communicated with the upper cavity through an upper filter hole, and the monitoring cavity is communicated with the lower cavity through a lower filter hole;
a water outlet is formed in the left side of the monitoring cavity, and the caliber of the water outlet is smaller than that of the sampling port;
the monitoring cavity is internally provided with a monitoring rod, and the monitoring rod is connected with a water quality monitoring probe.
2. The on-line water quality monitoring system of claim 1, wherein the flow guide body and the monitoring cylinder are of an integrated structure.
3. The on-line water quality monitoring system of claim 1, wherein a control valve is installed at the water outlet.
4. The on-line water quality monitoring system according to claim 1, wherein a semi-open avoidance port is formed in the side end of the monitoring rod, and the water quality monitoring probe is installed in the avoidance port.
5. The on-line water quality monitoring system of claim 4, wherein an optical probe is further installed in the avoidance port.
6. The on-line water quality monitoring system according to claim 5, wherein the monitoring cylinder body is provided with a terminal, the terminal is provided with a through hole, the through hole is connected with the upper cavity, and a sealing ring is arranged in the through hole;
an upper opening is arranged between the monitoring cavity and the upper cavity, a lower opening is arranged between the monitoring cavity and the lower cavity, an upper pipe sleeve is arranged on the upper opening, a lower pipe sleeve is arranged on the lower opening, and the through hole, the upper pipe sleeve and the lower pipe sleeve are coaxial;
the water quality on-line monitoring system further comprises a cover assembly, the cover assembly is in threaded connection with the end head, the monitoring rod passes through the central hole of the cover assembly from top to bottom, and the through hole, the upper pipe sleeve and the lower pipe sleeve enable the bottom end of the monitoring rod to be embedded into the bottom of the lower cavity.
7. The on-line water quality monitoring system of claim 6, wherein the top end of the monitoring rod is positioned above the cover assembly, and a wiring terminal is mounted on the top end of the monitoring rod, wherein the wiring terminal is connected with the water quality monitoring probe and the optical probe in a wired or wireless communication manner, and the wiring terminal is connected with the analysis detector.
8. An online water quality monitoring method, which is characterized by being applied to the online water quality monitoring system of any one of the claims 1-7, and comprises the following steps:
arranging the monitoring cylinder body in the discharge pipe, and then when the discharge pipe discharges waste water, impacting the diversion body along a sampling port of the monitoring cylinder body to perform primary waste water flow speed reduction;
then, the waste water is guided by the cone section of the guide body, so that the waste water flows upwards to the upper cavity along the first flowing clearance, and flows downwards to the lower cavity along the second flowing clearance, and the secondary waste water flowing speed is reduced;
then the waste water in the upper cavity enters the monitoring cavity through the upper filtering hole, the waste water in the lower cavity is stored, overflows upwards into the monitoring cavity through the lower filtering hole, and is discharged into the discharge pipe through the water outlet, so that the more the waste water in the monitoring cavity is accumulated until the waste water is full because the caliber of the water outlet is smaller than that of the sampling port;
when the waste water in the monitoring cavity is full, the water inflow of the sampling port and the water outflow of the water outlet are balanced, and the fluidity of the waste water in the monitoring cavity is lower than that of the waste water in the discharge pipe;
finally, the wastewater in the monitoring cavity is monitored by a water quality monitoring probe in the monitoring rod.
9. The method according to claim 8, wherein in the step, the water output of the water outlet is regulated by a control valve.
10. The on-line monitoring method according to claim 8, wherein in the step, when the surface of the water quality monitoring probe needs to be cleaned, the cover assembly on the monitoring cylinder is rotated down to separate the cover assembly from the monitoring cylinder, and then the cover assembly and the monitoring rod are lifted upwards, so that the monitoring rod is separated from the upper pipe sleeve and the lower pipe sleeve upwards, and the water quality monitoring probe in the monitoring rod is moved out of the monitoring cylinder for cleaning.
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