CN115963239A - Water quality measuring device and method - Google Patents
Water quality measuring device and method Download PDFInfo
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- CN115963239A CN115963239A CN202310101647.2A CN202310101647A CN115963239A CN 115963239 A CN115963239 A CN 115963239A CN 202310101647 A CN202310101647 A CN 202310101647A CN 115963239 A CN115963239 A CN 115963239A
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- 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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a water quality measuring device and a method, which relate to the technical field of water quality measurement, and the device comprises a sampling mechanism, a cleaning mechanism, and an acquisition module, a transmission module, a data processing module and a display module which are sequentially in communication connection; the sampling mechanism comprises a test box, an anaerobic pool sampling pipe, an aerobic pool sampling pipe, a sampling pump and a drainage pipe; the acquisition module comprises a PH sensor, an ORP sensor, a temperature sensor and a COD sensor which are arranged in the test box; the cleaning mechanism comprises a clean water tank, a clean water pump and a cleaning spray head which are sequentially communicated, and the cleaning spray head is used for cleaning the acquisition module. The method applies the water quality measuring device provided by the invention. The invention can be applied to a sewage treatment site, can sample and detect water in an anaerobic tank or an aerobic tank in real time, is simpler and more convenient compared with manual sampling detection, and is not easy to make mistakes.
Description
Technical Field
The invention relates to the technical field of water quality measurement, in particular to a water quality measuring device and method.
Background
At present, the A/O process is mainly adopted to carry out biochemical treatment on rural sewage, and in an A/O tank of the A/O process, the water quality in the biochemical reaction process of the rural sewage is often required to be measured, for example, the water in the A/O tank is measured: ammonium ion, sludge concentration, pH, COD, ORP, temperature, sludge activity and the like.
The current water quality measurement mode is that the manual work is sampled to the sewage treatment scene, shifts the sample to laboratory with chemical reagent again and measures, but the operation degree of difficulty of this kind of mode is big and need the operator to possess certain professional knowledge, and manual operation makes mistakes easily.
Disclosure of Invention
In view of the above situation, the invention provides a water quality measuring device and method, and aims to solve the technical problems that the existing water quality measuring method is that sampling is carried out on a sewage treatment site manually, and then a sample is transferred to a laboratory for measurement, but the operation difficulty of the method is high, an operator needs to have certain professional knowledge, and manual operation is prone to errors.
In order to achieve the purpose, the invention provides the following technical scheme:
in a first aspect, the present invention provides a water quality measuring apparatus, which may mainly include: the device comprises a sampling mechanism, a cleaning mechanism, and an acquisition module, a transmission module, a data processing module and a display module which are sequentially in communication connection;
the sampling mechanism includes: the device comprises a test box, an anaerobic tank sampling pipe, an aerobic tank sampling pipe, a sampling pump and a drainage pipe; one end of the anaerobic pool sampling tube is communicated with the anaerobic pool, the other end of the anaerobic pool sampling tube is communicated with the inlet of the sampling pump, one end of the aerobic pool sampling tube is communicated with the aerobic pool, the other end of the aerobic pool sampling tube is communicated with the inlet of the sampling pump, and the outlet of the sampling pump is communicated with the test box; one end of the drain pipe is communicated with the test box;
the collection module is including setting up in the test box: a PH sensor, an ORP sensor, a temperature sensor and a COD sensor;
the cleaning mechanism comprises a clean water tank, a clean water pump and a cleaning spray head which are sequentially communicated, and the cleaning spray head is used for cleaning the acquisition module.
In some embodiments of the invention, the washing mechanism further comprises a supernatant pump for pumping supernatant in the test chamber into the clean water chamber.
In some embodiments of the invention, the cleaning mechanism further comprises a movably arranged cleaning sleeve, and a cleaning brush is arranged on the inner wall of the cleaning sleeve and can scrub the outer side of the probe of the COD sensor.
In some embodiments of the invention, the washing mechanism further comprises: the telescopic pipe comprises a fixed pipe, a telescopic pipe, a connecting sleeve and a driving assembly;
the fixed pipe is fixed in the test box, and the clean water pump, the fixed pipe, the telescopic pipe and the cleaning spray head are communicated in sequence;
a plurality of connecting pieces are arranged on the inner wall of the connecting sleeve at intervals, the connecting sleeve is rotatably connected with the outer wall of the cleaning spray head through the connecting pieces, and a gap is reserved between the connecting sleeve and the cleaning spray head; one end of the cleaning sleeve is fixed at one end of the connecting sleeve;
the driving assembly is used for moving the cleaning sleeve back and forth along the axial direction of the probe of the COD sensor and enabling the cleaning sleeve to rotate around the axis of the probe of the COD sensor.
In some embodiments of the invention, a light source, a light-transmitting sheet, a working electrode and a counter electrode are sequentially arranged in a probe of the COD sensor from top to bottom; a first through hole is formed in the side surface of the probe and is positioned below the light-transmitting sheet;
the inner side of the lower end of the probe is fixedly provided with a baffle, the edges of the periphery of the baffle are bent downwards, the lower end of the probe is provided with a second through hole, and the projection of the baffle on the lower end surface of the probe coincides with the second through hole.
In some embodiments of the invention, the drive assembly comprises: the device comprises a flow guide channel, a driving blade, a driving fan blade, a rotating shaft, a cam, an ejector rod, a lifting plate and a guide rod;
the flow guide channel is arranged on the side wall of the cleaning spray head, the driving blade is positioned in the gap and fixed on the inner wall of the connecting sleeve, and the driving blade is positioned between the flow guide channel and the cleaning sleeve;
the driving fan blade and the cam are both arranged on the rotating shaft, the driving fan blade is positioned in the fixed pipe, the lower end of the ejector rod is in contact with the cam, and the cam is used for enabling the ejector rod to move up and down in a reciprocating mode; the lifting plate is fixed on the lower part of the cleaning spray head, the lower side of the lifting plate is contacted with the upper end of the ejector rod, the lower end of the guide rod is fixed on the fixed pipe, and the upper part of the guide rod is connected with the lifting plate in an inserting mode.
In some embodiments of the invention, a floating plate capable of floating on the water surface is movably arranged in the test box, and an ultrasonic generator and a transducer are arranged on the floating plate.
In some embodiments of the invention, the water quality measuring device further comprises: a transmission rod and a spring;
the upper part of the transmission rod is inserted into the floating plate, the lower part of the transmission rod is fixedly connected with the lifting plate, and the upper end of the transmission rod is provided with a limiting part;
the spring sleeve is arranged on the transmission rod, the upper end of the spring is fixedly connected with the limiting part, the lower end of the spring is fixedly provided with a pressing ring, and the lower side of the pressing ring can be in contact with the upper side of the floating plate.
In some embodiments of the present invention, a bump for limiting the downward movement of the floating plate is fixed on the inner wall of the test chamber.
In a second aspect, the present invention provides a water quality measuring method, which mainly comprises the following steps:
s1: introducing water in the anaerobic tank or the aerobic tank into the test box through a sampling pump;
s2: stirring the water in the test box;
s3: detecting the PH and the ORP of the water in the test box;
s4: starting an ultrasonic generator and an energy converter, and applying a downward acting force to the water in the test box through a floating plate so as to accelerate the precipitation of impurities in the water by utilizing the vibration effect of mechanical waves; in the vibration process of the floating plate, the floating plate can intermittently drive the connecting sleeve upwards to shake the connecting sleeve and the cleaning sleeve, so that sundries precipitated in an accelerated manner are prevented from being attached to the cleaning brush on the cleaning sleeve;
s5: detecting the temperature and COD of water in the test box;
s6: extracting the supernatant in the test box into a clear water box by a supernatant extracting pump;
s7: the residual water and the precipitate in the test box are led back to the anaerobic tank or the aerobic tank through a drain pipe;
s8: spraying clean water in the clean water tank to probes of a PH sensor, an ORP sensor, a temperature sensor and a COD sensor through a clean water pump and a cleaning spray head, and moving a cleaning sleeve in a reciprocating manner along the axial direction of the probe of the COD sensor, and enabling the cleaning sleeve to rotate around the axis of the probe of the COD sensor;
s9: the valve plate is moved upwards through the hydraulic cylinder, the flushing port is opened to clean water in the clean water tank is used for flushing the bottom of the test box, and then the valve plate is moved downwards through the hydraulic cylinder to close the flushing port.
The embodiment of the invention at least has the following advantages or beneficial effects:
1. the embodiment of the invention can be applied to a sewage treatment site, can sample and detect water in an anaerobic tank or an aerobic tank in real time, and is simpler and more convenient and less prone to error compared with a method of testing by using a chemical reagent after manual sampling.
2. The embodiment of the invention can clean the acquisition module after one-time detection, and avoid the influence on the next detection result due to the sundries remained on the acquisition module, so that the detection result of the acquisition module can more accurately reflect the current water quality condition.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an acquisition module, a transmission module, a data processing module, and a display module of a communication connection provided in embodiment 1;
FIG. 2 is a schematic structural diagram of a sampling mechanism, an acquisition module and a cleaning mechanism provided in embodiment 1;
FIG. 3 is a schematic structural diagram of a sampling mechanism, an acquisition module and a cleaning mechanism provided in embodiment 2;
FIG. 4 is a schematic structural view of a COD sensor provided in example 2;
FIG. 5 is a schematic view of the cleaning mechanism;
fig. 6 is a partially enlarged view of a position a in fig. 3.
Icon:
11-a test box, 111-a flushing port, 112-a valve plate, 113-a hydraulic cylinder, 12-an anaerobic pool sampling pipe, 13-an aerobic pool sampling pipe, 14-a sampling pump, 15-a sewage discharge pipe,
21-support, 22-probe of PH sensor, 23-probe of ORP sensor, 24-probe of temperature sensor, 25-probe of COD sensor, 251-light source, 252-light-transmitting sheet, 253-working electrode, 254-counter electrode, 255-first through hole, 256-baffle, 257-second through hole,
31-a clean water tank, 32-a clean water pump, 33-a cleaning spray head, 34-a supernatant pump, 35-a cleaning sleeve, 351-a cleaning brush, 36-a fixed pipe, 37-a telescopic pipe, 38-a connecting sleeve, 381-a connecting piece, 382-a gap, 391-a flow guide channel, 392-a driving blade, 393-a driving fan blade, 394-a rotating shaft, 395-a cam, 396-a mandril, 397-a lifting plate and 398-a guide rod,
41-floating plate, 42-ultrasonic generator, 43-transducer, 44-transmission rod, 441-limiting part, 45-spring, 46-press ring and 47-lug.
Detailed description of the preferred embodiments
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the invention.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", "axial", and the like refer to orientations or positional relationships based on those shown in the drawings, and are used merely to facilitate description of the embodiments and to simplify the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 2, the present embodiment provides a water quality measuring apparatus, which mainly includes: the device comprises a sampling mechanism, an acquisition module, a transmission module, a data processing module, a display module and a cleaning mechanism, wherein the acquisition module, the transmission module, the data processing module and the display module are sequentially in communication connection so as to display data detected by the acquisition module through the display module; the transmission module, the data processing module and the display module are all the prior art, and a sampling mechanism, an acquisition module and a cleaning mechanism are mainly introduced below.
The sampling mechanism may mainly include: the device comprises a test box 11, an anaerobic tank sampling pipe 12, an aerobic tank sampling pipe 13, a sampling pump 14 and a sewage discharge pipe 15; one end of an anaerobic pool sampling pipe 12 is communicated with an anaerobic pool (namely, a pool A of an A/O process), the other end is communicated with an inlet of a sampling pump 14, one end of an aerobic pool sampling pipe 13 is communicated with an aerobic pool (namely, an O pool of the A/O process), the other end is communicated with an inlet of the sampling pump 14, and an outlet of the sampling pump 14 is communicated with a test box 11; one end of the drain pipe 15 is communicated with the test box 11; the sampling tube 12 of the anaerobic tank, the sampling tube 13 of the aerobic tank and the sewage discharge pipe 15 can be provided with electromagnetic valves.
The acquisition module may essentially comprise a rack 21 mounted inside the test chamber 11: the device comprises a pH sensor, an ORP sensor, a temperature sensor and a COD sensor, wherein the pH sensor, the ORP sensor, the temperature sensor and the COD sensor are all provided with probes.
The cleaning mechanism mainly comprises a clean water tank 31, a clean water pump 32 and a cleaning spray nozzle 33 which are sequentially communicated, wherein the cleaning spray nozzle 33 is used for cleaning the acquisition module, and specifically, the cleaning spray nozzle 33 is used for cleaning the probe 22 of the PH sensor, the probe 23 of the ORP sensor, the probe 24 of the temperature sensor and the probe 25 of the COD sensor.
The wash mechanism may also include a supernatant pump 34; after the impurities in the water in the test box 11 are precipitated, the clear water on the upper layer is the supernatant, and the supernatant pump 34 can pump the supernatant in the test box 11 into the clear water box 31, so that the consumption of the clear water in the clear water box 31 is reduced.
When the water quality measuring device provided by the embodiment is used, the operation can be carried out according to the following steps:
s1: water in the anaerobic pool or the aerobic pool is introduced into the test box 11 through a sampling pump 14;
s2: stirring the water in the test chamber 11;
s3: detecting the PH and the ORP of the water in the test box 11, and displaying the detection result through a display module;
s4: standing the water in the test box 11 for 20min;
s5: detecting the temperature and COD of water in the test box 11, and displaying the detection result through a display module;
s6: the supernatant in the test box 11 is pumped into the clear water box 31 by a supernatant pump 34;
s7: the residual water and the sediment in the test box 11 are led back to the anaerobic pool or the aerobic pool through a drain pipe 15;
s8: the clean water in the clean water tank 31 is sprayed to the probes of the pH sensor, the ORP sensor, the temperature sensor and the COD sensor through the clean water pump 32 and the cleaning spray nozzle 33 so as to clean the acquisition module.
And repeating the S1 to the S8 to realize multiple tests.
According to the above, the water quality measuring device can be applied to a sewage treatment site, can sample and detect water in an anaerobic tank or an aerobic tank in real time, and is simpler and more convenient and less prone to error compared with a chemical reagent test after manual sampling. In addition, the water quality measuring device can clean the acquisition module after one-time detection, and the influence on the next detection result caused by the residual sundries on the acquisition module is avoided, so that the result detected by the acquisition module can more accurately reflect the current water quality condition.
Example 2
This embodiment is a further improvement on embodiment 1.
Referring to fig. 3 to 6, a flushing port 111 is formed in a lower portion of a side wall of the test box 11, and the flushing port 111 is used for communicating the test box 11 with the clean water tank 31; a valve plate 112 which can be opened and closed through a hydraulic cylinder 113 is arranged at the flushing port 111. After moving up valve plate 112 by hydraulic cylinder 113 to open flushing port 111, the clean water in clean water tank 31 can be ejected from flushing port 111 under the action of gravity to flush the sediment at the bottom of test box 11, thereby facilitating the cleaning of the bottom of test box 11.
In this embodiment, the probe 25 of the COD sensor is provided with a light source 251, a transparent sheet 252, a working electrode 253, and a counter electrode 254 from top to bottom in sequence, and the transparent sheet 252 and the probe 25 of the COD sensor are sealed; a first through hole 255 is formed in the side surface of the probe, and the first through hole 255 is positioned below the light-transmitting sheet 252; different from the prior art, the lower end of the probe is fixed with a baffle 256 on the inner side, the edges of the periphery of the baffle 256 are bent downwards, the lower end of the probe is provided with a second through hole 257, and the projection of the baffle 256 on the lower end surface of the probe coincides with the second through hole 257. The COD sensor adopts the electrochemistry method to determine COD, after the probe 25 of the COD sensor is immersed in water, water can enter the probe 25 of the COD sensor from the first through hole 255 and the second through hole 257 and contact with the working electrode 253, light emitted by the light source 251 irradiates on the working electrode 253 through the light-transmitting sheet 252 to generate hydroxyl radicals, and the hydroxyl radicals have strong oxidizing capacity and can synchronously and rapidly oxidize organic matters in the water. When the potential of the working electrode 253 is constant, the current of the working electrode 253 changes in direct proportion to the content of organic matters in water while hydroxyl radicals are consumed.
The cleaning mechanism can also comprise a movably arranged cleaning sleeve 35, and a cleaning brush 351 for brushing the acquisition module is arranged on the inner wall of the cleaning sleeve 35; the cleaning brush 351 can brush the probes of the PH sensor, the ORP sensor, the temperature sensor, and the COD sensor, and in the following description, the cleaning brush 351 is used to brush the outside of the probe 25 of the COD sensor as an example.
Specifically, the cleaning mechanism may further include: a fixed tube 36, a telescopic tube 37, a connecting sleeve 38 and a drive assembly; the fixed pipe 36 is fixed in the test box 11, and the clean water pump 32, the fixed pipe 36, the telescopic pipe 37 and the cleaning nozzle 33 are communicated in sequence; a plurality of connecting pieces 381 are arranged on the inner wall of the connecting sleeve 38 at intervals, the connecting sleeve 38 is rotatably connected with the outer wall of the cleaning spray head 33 through the connecting pieces 381, and a gap 382 is reserved between the connecting sleeve 38 and the cleaning spray head 33; one end of the cleaning sleeve 35 is fixed to one end of the connecting sleeve 38; the driving assembly is used for moving the cleaning sleeve 35 in a reciprocating manner along the axial direction of the probe 25 of the COD sensor, and enabling the cleaning sleeve 35 to rotate around the axis of the probe 25 of the COD sensor so as to brush the side face of the probe 25 of the COD sensor through the cleaning brush 351 on the cleaning sleeve 35; while brushing the side of the probe 25 of the COD sensor by the cleaning brush 351, the end of the probe 25 of the COD sensor can be washed by the cleaning nozzle 33; when the end of the probe 25 of the COD sensor is washed by the washing nozzle 33, part of the clean water sprayed by the washing nozzle 33 can enter the probe 25 of the COD sensor through the second through hole 257, collide with the baffle 256, and then wash the inside of the probe 25 of the COD sensor, so as to prevent the light-transmitting sheet 252, the working electrode 253, and the counter electrode 254 from being directly impacted by the clean water.
To facilitate the reciprocating movement of the cleaning sleeve 35 along the axial direction of the probe 25 of the COD sensor and to rotate about the axis of the probe 25 of the COD sensor, in the present embodiment, the driving assembly may preferably mainly include: flow guide channel 391, drive vanes 392, drive blades 393, shaft 394, cam 395, ram 396, lift plate 397, and guide rods 398; the guide channel 391 is opened on the side wall of the cleaning nozzle 33, the driving blade 392 is positioned in the gap 382 and fixed on the inner wall of the connecting sleeve 38, the driving blade 392 is positioned between the guide channel 391 and the cleaning sleeve 35; the driving fan 393 and the cam 395 are both arranged on the rotating shaft 394, the driving fan 393 is positioned in the fixed tube 36, the lower end of the push rod 396 is contacted with the cam 395, and the cam 395 is used for enabling the push rod 396 to do up-and-down reciprocating movement; the lifting plate 397 is fixed to the lower portion of the cleaning head 33, the lower side of the lifting plate 397 contacts the upper end of the ejector pin 396, the lower end of the guide rod 398 is fixed to the fixed pipe 36, and the upper portion of the guide rod 398 is inserted into the lifting plate 397. After the clean water pump 32 is started, the driving fan 393 can drive the cam 395 to rotate under the driving of water power so as to intermittently push the ejector rod 396 upwards, after the ejector rod 396 moves upwards, the ejector rod 396 and the lifting plate 397 can move downwards under the action of gravity, so that the ejector rod 396 and the lifting plate 397 do up-and-down reciprocating movement, and therefore the cleaning sleeve 35 can axially reciprocate along the probe 25 of the COD sensor through the movement of the lifting plate 397; the driving blade 392 can drive the connecting sleeve 38 to rotate under the drive of the hydraulic power, and the connecting sleeve 38 drives the cleaning sleeve 35 to rotate.
It should be noted that the driving component is only a preferred embodiment, and the driving component may also adopt other structures as long as the above purpose can be achieved, and the embodiment is not illustrated.
After detecting the PH and ORP of the water in the test box 11, in order to accelerate the precipitation of the impurities in the water, so as to improve the COD testing efficiency of the device, the present embodiment adopts the existing mechanical wave precipitation method to accelerate the precipitation of the impurities in the water, specifically, a floating plate 41 capable of floating on the water surface is movably arranged in the test box 11, and an ultrasonic generator 42 and a transducer 43 are arranged on the floating plate 41; as in the prior art, the floating plate 41 may also be coated with a silicone rubber coating. The transducer 43 converts the electrical signal generated by the ultrasonic generator 42 into mechanical vibration to drive the floating plate 41 to vibrate on the surface of the water and generate mechanical waves, and a continuous downward and continuous superposed acting force is applied on the surface of the water through the vibration effect of the mechanical waves, so that the downward precipitation of impurities in the water is accelerated.
The water quality measuring apparatus may further include: a transmission rod 44 and a spring 45; the upper part of the transmission rod 44 is inserted into the floating plate 41, the lower part of the transmission rod 44 is fixedly connected with the lifting plate 397, and the upper end of the transmission rod 44 is provided with a limiting part 441; the spring 45 is sleeved on the transmission rod 44, the upper end of the spring 45 is fixedly connected with the limiting portion 441, the lower end of the spring 45 is fixedly provided with a pressing ring 46, and the lower side of the pressing ring 46 can be in contact with the upper side of the floating plate 41. In the vibration process of the floating plate 41, when the floating plate 41 moves upwards, the floating plate 41 can firstly contact with the pressing ring 46, then the transmission rod 44 is driven to move upwards slightly, the transmission rod 44 drives the lifting plate 397 and the cleaning nozzle 33 to move upwards, and when the floating plate 41 moves downwards, the transmission rod 44 and the cleaning nozzle 33 move downwards under the action of gravity to shake the cleaning nozzle 33, the connecting sleeve 38 and the cleaning sleeve 35, so that sundries precipitated in an accelerated mode are prevented from being attached to the cleaning brush 351 on the cleaning sleeve 35.
A projection 47 for restricting the downward movement of the floating plate 41 is fixed to the inner wall of the test chamber 11. In the process of guiding the residual water and sediments in the test box 11 back to the anaerobic pool or the aerobic pool through the sewage discharge pipe 15, the floating plate 41 moves downwards along with the water level in the test box 11, the floating plate 41 is separated from the pressing ring 46 and finally stays on the bump 47, the clean water pump 32 is started, and the floating plate 41 cannot be driven by the movement of the connecting sleeve 38 and the cleaning sleeve 35.
The embodiment further provides a water quality measuring method, which applies the water quality measuring device, and the water quality measuring method mainly comprises the following steps:
s1: water in the anaerobic pool or the aerobic pool is introduced into the test box 11 through a sampling pump 14;
s2: stirring the water in the test chamber 11;
s3: detecting the PH and the ORP of the water in the test box 11, and displaying the detection result through a display module;
s4: starting the ultrasonic generator 42 and the transducer 43, and applying a downward acting force to the water in the test box 11 through the floating plate 41 to accelerate the precipitation of impurities in the water by using the vibration effect of mechanical waves; in the vibration process of the floating plate 41, the floating plate 41 can intermittently drive the connecting sleeve 38 upwards to shake the connecting sleeve 38 and the cleaning sleeve 35, so that sundries precipitated in an accelerated manner are prevented from being attached to the cleaning brush 351 on the cleaning sleeve 35;
s5: detecting the temperature and COD of water in the test box 11, and displaying the detection result through a display module;
s6: the supernatant in the test box 11 is pumped into the clear water box 31 by a supernatant pump 34;
s7: opening an electromagnetic valve on the drain pipe 15, and leading the residual water and the sediments in the test box 11 back to the anaerobic tank or the aerobic tank through the drain pipe 15;
s8: spraying clean water in the clean water tank 31 to probes of a PH sensor, an ORP sensor, a temperature sensor and a COD sensor through a clean water pump 32 and a cleaning nozzle 33, moving a cleaning sleeve 35 in a reciprocating manner along the axial direction of the probe 25 of the COD sensor, and enabling the cleaning sleeve 35 to rotate around the axis of the probe 25 of the COD sensor;
s9: the valve plate 112 is moved up by the hydraulic cylinder 113, the flushing port 111 is opened to flush the bottom of the test tank 11 by the clean water in the clean water tank 31, and then the electromagnetic valve on the soil pipe 15 is closed, and the valve plate 112 is moved down by the hydraulic cylinder 113 to close the flushing port 111.
And repeating the S1 to S9 to realize multiple tests.
Finally, it should be noted that: the present invention is not limited to the above-described preferred embodiments, but various modifications and changes can be made by those skilled in the art, and the embodiments and features of the embodiments of the present invention can be combined with each other arbitrarily without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Water quality measuring device includes: a sampling mechanism, a cleaning mechanism, and an acquisition module, a transmission module, a data processing module and a display module which are sequentially connected in a communication manner,
the sampling mechanism comprises a test box, an anaerobic pool sampling pipe, an aerobic pool sampling pipe, a sampling pump and a drainage pipe; one end of the anaerobic tank sampling tube is communicated with the anaerobic tank, the other end of the anaerobic tank sampling tube is communicated with the inlet of the sampling pump, one end of the aerobic tank sampling tube is communicated with the aerobic tank, the other end of the aerobic tank sampling tube is communicated with the inlet of the sampling pump, and the outlet of the sampling pump is communicated with the test box; one end of the drain pipe is communicated with the test box;
the acquisition module comprises a PH sensor, an ORP sensor, a temperature sensor and a COD sensor which are arranged in the test box;
the cleaning mechanism comprises a clean water tank, a clean water pump and a cleaning sprayer which are sequentially communicated, and the cleaning sprayer is used for cleaning the acquisition module.
2. The water quality measuring device according to claim 1, wherein the cleaning mechanism further comprises a supernatant pump for pumping supernatant in the test tank into the clean water tank.
3. The water quality measuring device according to claim 1, wherein the cleaning mechanism further comprises a movably arranged cleaning sleeve, and a cleaning brush is arranged on the inner wall of the cleaning sleeve and can brush the outer side of the probe of the COD sensor.
4. The water quality measuring device according to claim 3, wherein the cleaning mechanism further comprises: the device comprises a fixed pipe, a telescopic pipe, a connecting sleeve and a driving assembly;
the fixed pipe is fixed in the test box, and the clean water pump, the fixed pipe, the telescopic pipe and the cleaning nozzle are communicated in sequence;
a plurality of connecting pieces are arranged on the inner wall of the connecting sleeve at intervals, the connecting sleeve is rotationally connected with the outer wall of the cleaning spray head through the connecting pieces, and a gap is reserved between the connecting sleeve and the cleaning spray head; one end of the cleaning sleeve is fixed at one end of the connecting sleeve;
the driving assembly is used for moving the cleaning sleeve in a reciprocating mode along the axial direction of the probe of the COD sensor, and the cleaning sleeve can rotate around the axis of the probe of the COD sensor.
5. The water quality measuring device according to claim 4, wherein a light source, a light-transmitting sheet, a working electrode and a counter electrode are arranged in the probe of the COD sensor from top to bottom in sequence; a first through hole is formed in the side face of the probe and is positioned below the light-transmitting sheet;
the inner side of the lower end of the probe is fixedly provided with a baffle, the peripheral edge of the baffle is bent downwards, the lower end of the probe is provided with a second through hole, and the projection of the baffle on the lower end surface of the probe is superposed with the second through hole.
6. The water quality measuring device of claim 4, wherein the drive assembly comprises: the device comprises a flow guide channel, a driving blade, a driving fan blade, a rotating shaft, a cam, an ejector rod, a lifting plate and a guide rod;
the flow guide channel is arranged on the side wall of the cleaning spray head, the driving blade is positioned in the gap and fixed on the inner wall of the connecting sleeve, and the driving blade is positioned between the flow guide channel and the cleaning sleeve;
the driving fan blade and the cam are both arranged on the rotating shaft, the driving fan blade is positioned in the fixed pipe, the lower end of the ejector rod is in contact with the cam, and the cam is used for enabling the ejector rod to do up-and-down reciprocating movement; the lifting plate is fixed on the lower portion of the cleaning spray head, the lower side of the lifting plate is in contact with the upper end of the ejector rod, the lower end of the guide rod is fixed on the fixed pipe, and the upper portion of the guide rod is connected with the lifting plate in an inserted mode.
7. The water quality measuring device of claim 6, wherein a floating plate capable of floating on the water surface is movably arranged in the test box, and an ultrasonic generator and a transducer are arranged on the floating plate.
8. The water quality measuring apparatus according to claim 7, further comprising: a transmission rod and a spring;
the upper part of the transmission rod is inserted into the floating plate, the lower part of the transmission rod is fixedly connected with the lifting plate, and the upper end of the transmission rod is provided with a limiting part;
the spring sleeve is arranged on the transmission rod, the upper end of the spring is fixedly connected with the limiting part, the lower end of the spring is fixed with a compression ring, and the lower side of the compression ring can be in contact with the upper side of the floating plate.
9. The water quality measuring device of claim 7, wherein a protrusion for limiting the downward movement of the floating plate is fixed to an inner wall of the test box.
10. A water quality measuring method implemented by the water quality measuring apparatus according to any one of claims 1 to 9, comprising the steps of:
s1: introducing water in the anaerobic tank or the aerobic tank into the test box through a sampling pump;
s2: stirring the water in the test box;
s3: detecting the PH and the ORP of the water in the test box;
s4: starting an ultrasonic generator and an energy converter, and applying a downward acting force to the water in the test box through a floating plate so as to accelerate the precipitation of impurities in the water by utilizing the vibration effect of mechanical waves; in the vibration process of the floating plate, the floating plate can intermittently drive the connecting sleeve upwards to shake the connecting sleeve and the cleaning sleeve, so that sundries precipitated in an accelerated manner are prevented from being attached to the cleaning brush;
s5: detecting the temperature and COD of water in the test box;
s6: extracting the supernatant in the test box into a clear water box by a supernatant extracting pump;
s7: the residual water and the precipitate in the test box are led back to the anaerobic tank or the aerobic tank through a drain pipe;
s8: spraying clean water in the clean water tank to probes of a PH sensor, an ORP sensor, a temperature sensor and a COD sensor through a clean water pump and a cleaning spray head, and moving a cleaning sleeve in a reciprocating manner along the axial direction of the probe of the COD sensor, and enabling the cleaning sleeve to rotate around the axis of the probe of the COD sensor;
s9: the valve plate is moved upwards through the hydraulic cylinder, the flushing port is opened to clean water in the clean water tank is used for flushing the bottom of the test box, and then the valve plate is moved downwards through the hydraulic cylinder to close the flushing port.
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Cited By (1)
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| CN116952666A (en) * | 2023-09-20 | 2023-10-27 | 北京北控悦慧环境科技有限公司 | Sampling device that municipal wastewater treatment used |
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