CN118130923A - Current detector for accurate control of coagulation and dosing - Google Patents
Current detector for accurate control of coagulation and dosing Download PDFInfo
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- CN118130923A CN118130923A CN202410556943.6A CN202410556943A CN118130923A CN 118130923 A CN118130923 A CN 118130923A CN 202410556943 A CN202410556943 A CN 202410556943A CN 118130923 A CN118130923 A CN 118130923A
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- 230000015271 coagulation Effects 0.000 title claims abstract description 31
- 238000005345 coagulation Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 239000000701 coagulant Substances 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 26
- 238000001125 extrusion Methods 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 17
- 238000003825 pressing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses a current detector for accurate control of coagulation and dosing, which comprises: the box body is internally provided with an inner cavity, a feedback system and a transmission assembly are arranged in the inner cavity, and the output end of the transmission assembly extends to the outside of the box body from the outside of the box body; the sensor cover is arranged on one side of the box body extending to the outside of the box body from the transmission component, the acquisition component is arranged on the lower portion of the sensor cover and fixed on the bottom of the sensor cover, and the transmission component is provided with the connecting rod extending to the inside of the acquisition component and can realize the movement in the height direction. According to the invention, the charge value change in water is obtained to control the dosage of the coagulant, and a precise charge value change curve is obtained, so that the change amplitude of the dosage is ensured to be consistent with the change amplitude of the charge value, the problem that the dosage cannot be adjusted in real time is avoided, the coagulation difficulty is reduced, and the coagulant dosage accuracy is improved.
Description
Technical Field
The invention relates to the technical field of coagulant coagulation sedimentation water treatment measurement, in particular to a current detector for accurate control of coagulation and dosing.
Background
Coagulant is required to be added in the water treatment process of domestic drinking water and industrial wastewater to coagulate and precipitate the sludge or suspended matters of sample water or sewage.
Wherein larger coarse-grained suspended matters in the particles can be removed by natural precipitation, but finer suspended matters, particularly colloidal particles, are slowly settled, and even can remain dispersed in water for a long time to be in a suspended state and cannot naturally sink, so that the coarse-grained suspended matters are difficult to separate and remove from the water by a natural precipitation method. Coagulation is actually to add certain dissolved salts into water to make fine suspended matters or colloid particles in water mutually adsorb and combine into larger particles so as to accelerate the precipitation process.
The suspended solids such as silt in water generally have negative charges on the surfaces, the coagulant generally has positive charges, the process of neutralizing positive and negative charge groups is realized in the coagulation process, the coagulation effect is poor due to too little or too much coagulant addition, the coagulant addition is different due to different types of different coagulants and impurities in water, the impurities in water are changed at any time, the coagulant addition is changed at any time, and the accurate addition cannot be realized.
The Chinese patent publication No. CN217230328U discloses a coagulant dosing device, and the coagulant dosing device adopts a small motor to drive a rotary blade to drive a stirring blade to rotate, so that on one hand, a plurality of stirring blades can respectively and independently rotate at different speeds to form turbulence, and different speeds required by different stages in the reaction process of the coagulant and raw water can be met; on the other hand, the rotation of the rotary blades is utilized to perform disturbance cutting of water flow, so that the intensity of turbulence is increased, and the coagulant and the raw water fully react.
However, the existing working modes of coagulant addition, stirring test, precipitation, turbidity test and the like are verified, the detection period is long, the dosage cannot be adjusted in real time, the coagulation effect verification is difficult, the work is complex, and the fluctuation of the water quality of the effluent is easy to cause.
Disclosure of Invention
The invention aims to provide a current detector for accurate control of coagulation and dosing, which is used for collecting a real-time charge value in water, controlling the dosing amount of coagulant put into the water according to the change of the charge value and realizing corresponding control according to the change of the charge value in the water.
In order to achieve the above purpose, the invention is realized by the following technical scheme: a current detector for accurate control of coagulation dosing, comprising:
The box body is internally provided with an inner cavity, a feedback system and a transmission assembly are arranged in the inner cavity, and the output end of the transmission assembly extends to the outside of the box body from the outside of the box body;
The sensor cover is arranged on one side of the box body extending to the outside of the box body from the transmission component, the acquisition component is arranged at the lower part of the sensor cover and fixed at the bottom of the sensor cover, and the transmission component is provided with the connecting rod extending into the acquisition component and can realize the movement in the height direction;
The detection end is positioned at one end of the connecting rod extending to the inside of the acquisition assembly and is provided with a conducting ring for collecting charged particles, the conducting ring is arranged up and down, and one end of the connecting rod extending to the inside of the acquisition assembly is provided with a piston head and drives the piston head to squeeze the charged particles in the sample water, so that the charged particles are collected at the inner wall of the conducting ring;
the sampling tube is arranged at the outer side of the acquisition assembly and extends into water in a flexible way.
In the present invention, the feedback system includes:
The starting capacitor is arranged in the box body and is positioned at the lower part of the transmission assembly;
And a sensor board fixed inside the case, with one side of the sensor board provided with a terminal block.
In the present invention, a transmission assembly includes:
The speed reducing motor is fixed in the box body, and the output end of the speed reducing motor extends from the inside of the box body to the inside of the sensor cover;
And the eccentric shaft is arranged at the outer side of the output end of the speed reducing motor, the eccentric shaft is arranged in an offset manner with the central axis of the speed reducing motor, the eccentric wheel is sleeved at the outer side of the eccentric shaft and drives the eccentric wheel to rotate, and the connecting rod extends into the eccentric wheel and follows the eccentric wheel to realize the movement in the height direction.
In the invention, the sealing element is arranged at the bottom of the piston head, the sealing element is elastically arranged, the piston head moves downwards to squeeze the sealing element, the sealing element can expand and contract, when the sealing element expands, sample water enters the sealing element, when the piston head squeezes the sealing element, the sealing element contracts, water in the sealing element is discharged, and the piston head is arranged in a stepped shaft.
In the present invention, the acquisition assembly comprises:
the collecting cavity is fixed at the bottom of the sensor cover, the connecting rod extends into the collecting cavity, the bottom of the collecting cavity is provided with an electrode upper seat, the inner side of the bottom of the electrode upper seat is provided with an electrode lower seat, and the electrode lower seat and the electrode upper seat are in threaded installation;
The lower gland is arranged at the bottom of the collecting cavity in a threaded manner to form fixed limit of the electrode lower seat.
In the invention, an upper gland is arranged at the upper part of a collecting cavity, the upper gland is arranged at the upper part of the collecting cavity in a threaded manner and limits the position of a connecting rod, the collecting cavity and the connecting rod are coaxially arranged, a sleeve is arranged at the inner side of an electrode lower seat, the sleeve is fixed at the inner side of the electrode lower seat, a conducting ring is arranged at the inner side of the sleeve, an electrode lower plug is arranged at the bottom of the electrode lower seat, and an electrode lower plug thread is arranged at the inner side of the electrode lower seat.
In the present invention, the detection end includes:
The guide gap is positioned between the piston head and the sleeve and is formed by matching the piston head with the inner wall of the sleeve;
The sealing head is arranged on one side of the sleeve, which is attached to the inner wall of the electrode upper seat, and is used for sealing between the sleeve and the electrode upper seat;
the pressurizing plate can be movably arranged in the piston head, an elastic body is arranged on one side of the pressurizing plate, which is positioned in the piston head, and the elastic body forms a support for the pressurizing plate.
In the invention, the guide gap is arranged at the outer side of the piston head, the opening direction of the guide gap is consistent with the axial direction of the connecting rod, and the guide gap extends downwards from the upper part of the piston head.
In the present invention, a sampling tube includes:
The pipe body is arranged at the inner side of the collecting cavity and extends into water to be detected, an elastic spacer is arranged in the collecting cavity and is fixed in the pipe body to form the limit of water inlet and water outlet in two directions, one end of the pipe body, which is positioned in the water, is provided with a collecting head, and the collecting head is spherical and is communicated with the pipe body;
the two sides of the elastic spacer are respectively provided with a water inlet cavity and a water outlet cavity, and sample water is exchanged by the water inlet cavity and the water outlet cavity.
In the invention, the inside of the sensor cover is provided with the extrusion cavity and extends to the outside of the sensor cover, one end of the extrusion cavity extending to the outside of the sensor cover is provided with the communication pipeline, the communication pipeline extends to the inside of the pipe body, the inside of the pipe body is provided with the coating air bag, and the coating air bag is communicated with the extrusion cavity through the communication pipeline.
Through the technical scheme, the invention has the following beneficial effects:
1. According to the invention, the charge value change in water is obtained to control the dosage of the coagulant, and a precise charge value change curve is obtained, so that the change amplitude of the dosage is ensured to be consistent with the change amplitude of the charge value, the problem that the dosage cannot be adjusted in real time is avoided, the coagulation difficulty is reduced, and the coagulant dosage accuracy is improved.
2. The invention changes the collection mode of charges in water, changes the existing mode of detecting the charges by the Faraday principle into local concentration of the charges, locally concentrates the charges at the detected position by squeezing the charged particles in the water, increases the concentration of the charged particles in the water, and avoids the problems that the device is huge and high in price, and is not suitable for on-site working condition detection due to the fact that the charge detection is carried out by the Faraday principle.
3. When carrying out charge collection, guarantee to exert effort to charged particle in the aquatic and be invariable basically, reduce the interference item when extrudeing charged particle, guarantee the stability of final acquisition signal, and at the in-process of taking a sample, the sample position can be in the aquatic by a wide margin motion to obtain the sample of bigger scope, avoid the problem that local charged particle in the aquatic has the difference.
4. When the sample water is extruded, two different detection modes can be generated, wherein one detection mode is uniform detection, namely the sample water can be uniformly collected by the periphery in the extruded process, so that the charged particles at each position are uniformly distributed, the other detection mode is concentrated detection mode, namely the sample water flows out from a certain position in a concentrated manner, and two different charge values are obtained.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the case of the present invention;
FIG. 3 is a cross-sectional view of a sensor housing of the present invention;
FIG. 4 is a side cross-sectional plan view of the present invention;
FIG. 5 is a partial plan view of the present invention;
FIG. 6 is a plan view of the internal structure of the collection chamber of the present invention;
FIG. 7 is a schematic view of the internal structure of the collection chamber of the present invention;
FIG. 8 is an exploded view of the upper electrode holder and the lower electrode holder of the present invention;
FIG. 9 is a cross-sectional view of an electrode upper mount and an electrode lower mount of the present invention;
FIG. 10 is a schematic view of the internal structure of the sleeve according to the present invention;
fig. 11 is a cross-sectional view of a piston head of the present invention.
In the figure: 100 boxes, 200 transmission components, 300 feedback systems, 400 acquisition components, 500 detection ends, 600 sampling pipes and 700 sensor covers;
301 starting a capacitor, 302 a terminal block, 303 a sensor plate and 304 a safety terminal;
201 a gear motor, 202 an eccentric shaft, 203 an eccentric wheel, 204 a connecting rod, 205 a piston head and 206 a sealing element;
401 collection chamber, 403 upper gland, 404 lower gland, 405 electrode lower seat, 406 electrode upper seat, 407 sleeve, 408 electrode lower plug;
501 conductive rings, 502 guide slits, 503 sealing heads, 504 pressurizing plates and 505 elastomers;
601 pipe body, 602 extrusion cavity, 603 intercommunication pipeline, 604 collection head, 605 cladding gasbag, 606 elastic septum, 607 intake chamber, 608 drainage chamber.
Detailed Description
Various embodiments of the invention are disclosed in the accompanying drawings, and for purposes of explanation, numerous practical details are set forth in the following description. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. And features of different embodiments may be interactively applied, if implementation is possible.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have their ordinary meaning as understood by one of ordinary skill in the art. Furthermore, the definitions of the words and phrases used herein should be understood and interpreted to have a meaning consistent with the understanding of the relevant art and technology. These terms are not to be construed as idealized or overly formal meanings unless expressly so defined.
The suspended solids such as silt in water generally have negative charges on the surfaces, the coagulant generally has positive charges, the process of neutralizing positive and negative charge groups is realized in the coagulation process, the coagulation effect is poor due to too little or too much coagulant addition, the coagulant addition is different due to different types of different coagulants and impurities in water, the impurities in water are changed at any time, the coagulant addition is changed at any time, and the accurate addition cannot be realized. According to the coagulation principle, the most fundamental principle of coagulation is to control charges in water, the most intuitive method for detecting the coagulation effect is to directly detect the charges in water, the coagulation effect can be detected by monitoring the charges in water in real time through equipment, and then the addition amount of a coagulant is regulated and controlled through the equipment so as to form a complete closed cycle, so that manual intervention is reduced, the water outlet quality is improved, and the efficiency is improved.
The device is most important to obtain the required real-time charge value in water, and the existing device for detecting the charge is generally used for detecting through Faraday principle, so that the detection device is huge and high in price, and is not suitable for detection under the field working condition. The concentration of charged particles in water is low, the charged particles are continuously neutralized in the coagulation process, and the water sample has fluidity, so that the equipment is difficult to collect the charges in the water.
Multiple experiments prove that charged particles in water are forced to squeeze the charged particles in the sample water under the condition of external acting force, so that the charged particles in the water are locally concentrated, the concentration of the charged particles in the water is increased, the strength of charges can be improved, and the charge collection difficulty is reduced. Meanwhile, the applied acting force applied during each sampling is ensured to be basically constant, the applied acting force cannot be neglected, interference items are reduced, and the stability of the final acquisition signal is further affected.
Referring to fig. 1-11, the present invention provides a current detector for accurate control of coagulant addition, which is used for locally concentrating charged particles in water treatment, increasing the concentration of the charged particles in water, improving the intensity of charges, and controlling the coagulant addition amount by changing the charge value. Comprising the following steps:
the box body 100, the box body 100 forms an inner cavity, a feedback system 300 and a transmission assembly 200 are arranged in the inner cavity, and the output end of the transmission assembly 200 extends from the outer side of the box body 100 to the outer side of the box body 100;
The sensor cover 700 is arranged on one side of the box body 100 extending to the outside of the box body 100 from the transmission component 200, the acquisition component 400 is arranged at the lower part of the sensor cover 700, the acquisition component 400 is fixed at the bottom of the sensor cover 700, and the transmission component 200 is provided with the connecting rod 204 extending into the acquisition component 400, so that the movement in the height direction can be realized;
The detection end 500 is positioned at one end of the connecting rod 204 extending to the inside of the collection assembly 400, is provided with a conductive ring 501 for collecting charged particles, the conductive ring 501 is arranged up and down, one end of the connecting rod 204 extending to the inside of the collection assembly 400 is provided with a piston head 205 and drives the piston head 205 to squeeze the charged particles in the sample water, and the charged particles are collected at the inner wall of the conductive ring 501;
the sampling tube 600 is mounted on the outside of the collection assembly 400 and extends into the water in a flexible manner.
In this embodiment, through the extrusion to the sample water, make the sample water move in fixed position, utilize the setting of conducting ring 501, can locally form the concentration to charged particle, increase the concentration of charged particle in water to improve the intensity of electric charge, reduce the collection degree of difficulty to the electric charge, so that can carry out the control of coagulant charge pump charge according to the difference of charge value.
The motion of the transmission assembly 200 can drive the connecting rod 204 to repeatedly move in the height direction, so that sample water can be collected and detected for many times, the dosage of the coagulant can be adjusted at any time, the coagulant is continuously adjusted to ensure the adaptation of the coagulant to sludge and suspended matters in water, and the problem of excessive coagulant dosage or insufficient coagulant dosage is avoided.
In the continuous sampling process, charged particles in water are replaced continuously, so that the water quality change can be detected continuously in the use process, and the coagulant can be added.
In one embodiment, feedback system 300 includes:
the starting capacitor 301 is arranged in the box body 100, and the starting capacitor 301 is positioned at the lower part of the transmission assembly 200;
A sensor plate 303 is fixed inside the case 100, a terminal block 302 is provided on one side of the sensor plate 303, and a fuse terminal 304 is provided at the bottommost part of the terminal block 302.
In one embodiment, the transmission assembly 200 includes:
a gear motor 201 fixed inside the case 100, wherein an output end of the gear motor 201 extends from inside the case 100 to inside the sensor cover 700;
The eccentric shaft 202 is arranged at the outer side of the output end of the gear motor 201, the eccentric shaft 202 and the central axis of the gear motor 201 are arranged in an offset mode, the eccentric wheel 203 is sleeved at the outer side of the eccentric shaft 202 and drives the eccentric wheel 203 to rotate, and the connecting rod 204 extends into the eccentric wheel 203 and follows the eccentric wheel 203 to realize the movement in the height direction.
In this embodiment, the eccentric shaft 202 is disposed, when in use, driven by the gear motor 201 to control the eccentric shaft 202, so as to control the height position of the connecting rod 204, and further be used for repeatedly sampling sample water through the piston head 205, while the eccentric wheel 203 is rotatably sleeved outside the eccentric shaft 202, and the motion stability of the eccentric wheel 203 is ensured by limiting the connecting rod 204 by the collecting assembly 400.
In one embodiment, the bottom of the piston head 205 is provided with a seal 206, the seal 206 is provided elastically, and the piston head 205 moves downward to form a squeeze against the seal 206, the seal 206 is expandable and contractible, when the seal 206 expands, sample water enters the interior of the seal 206, when the piston head 205 squeezes the seal 206, the seal 206 contracts, water in the interior thereof is discharged, and the piston head 205 is provided as a stepped shaft.
In this embodiment, the sealing member 206 is disposed so as to squeeze the sample water during use, so that the flow rate of the sample water can be increased according to the increase of the flow rate of the sample water, and the sealing member 206 is disposed so as to increase the flow rate of the sample water when the piston head 205 squeezes the sealing member 206, the sealing member 206 is contracted, and the water in the sealing member 206 flows out, and the elastic arrangement of the sealing member 206 can be squeezed out during use, so that the flow rate of the sample water is increased.
The stepped shaft arrangement of the piston head 205 can produce squeezing of the sample water as the piston head 205 moves, thereby increasing the flow rate of the sample water, while the bottom of the piston head 205 is provided with an openable resilient flap which can be opened when the piston head 205 moves upwardly during use, and which seals during downward movement of the piston head 205, thereby increasing the sample water pressure within the collection assembly 400.
In one embodiment, the acquisition assembly 400 includes:
The collecting chamber 401 is fixed at the bottom of the sensor cover 700, the connecting rod 204 extends into the collecting chamber 401, the bottom of the collecting chamber 401 is provided with the electrode upper seat 406, the inner side of the bottom of the electrode upper seat 406 is provided with the electrode lower seat 405, and the electrode lower seat 405 and the electrode upper seat 406 are in threaded installation;
The lower gland 404 is screwed on the bottom of the collection chamber 401 to form a fixed limit for the electrode lower seat 405.
In this embodiment, the lower gland 404 limits the upper electrode seat 406 and the lower electrode seat 405, so as to ensure that the positions of the upper electrode seat 406 and the lower electrode seat 405 are stable, and thus, the connection between the upper electrode seat 406 and the lower electrode seat 405 is not stable due to the pressurization of sample water in the upper electrode seat 406 and the lower electrode seat 405 in the use process.
In one embodiment, an upper gland 403 is disposed on the upper portion of the collection chamber 401, the upper gland 403 is mounted on the upper portion of the collection chamber 401 in a threaded manner and limits the position of the connecting rod 204, the collection chamber 401 is coaxially disposed with the connecting rod 204, a sleeve 407 is disposed on the inner side of the electrode lower seat 405, the sleeve 407 is fixed on the inner side of the electrode lower seat 405, a conductive ring 501 is mounted on the inner side of the sleeve 407, an electrode lower plug 408 is disposed on the bottom of the electrode lower seat 405, and the electrode lower plug 408 is mounted on the inner side of the electrode lower seat 405 in a threaded manner.
In this embodiment, the inside of the sleeve 407 is the squeezing position of the sample water, the piston head 205 forms the squeezing of the sample water inside the sleeve 407, the sleeve 407 is in a hollow state, the bottom of the electrode lower seat 405 is sealed by the arrangement of the electrode lower plug 408, the sealing element 206 is arranged on the upper part of the electrode lower plug 408, the sealing element 206 is an elastic cavity, the sealing element 206 is squeezed under the movement of the piston head 205, the opening position of the sealing element 206 is the outer side of the upper part, and after being squeezed, the water inside the sealing element 206 is squeezed.
In one embodiment, the detection end 500 includes:
The guide gap is positioned between the piston head 205 and the sleeve 407 and is formed by matching between the piston head 205 and the inner wall of the sleeve 407;
A sealing head 503, which is mounted on one side of the sleeve 407, which is attached to the inner wall of the electrode upper seat 406, and is used for sealing between the sleeve 407 and the electrode upper seat 406;
A pressing plate 504 movably installed inside the piston head 205, and an elastic body 505 is provided on one side of the pressing plate 504 inside the piston head 205, and the elastic body 505 forms a support for the pressing plate 504.
In this embodiment, the guide gap between the piston head 205 and the inner wall of the sleeve 407 is the same, when the piston head 205 extrudes the sample water, the sample water flows out from the position of the guide gap, and the conductive ring 501 is arranged, so that charged particles can be concentrated in use, the elastomer 505 supports the pressing plate 504, so that the elastomer 505 supports the pressing plate 504 when the sample water is extruded, and the pressing plate 504 extrudes the sample water. The elastic body 505 is a compression spring, and forms a support for the pressing plate 504.
In one embodiment, the guide slot 502 is open outside of the piston head 205, and the guide slot 502 is open in a direction that is coincident with the axial direction of the connecting rod 204, the guide slot 502 extending downwardly from the upper portion of the piston head 205.
In this embodiment, the guide slits 502 are provided at several positions, so that sample water can be discharged from several positions during use, and charged particles are concentrated at several positions of the conductive ring 501, so that the charge in water is detected, the charge in water is continuously detected, the coagulation effect is detected, and the addition amount of coagulant is controlled, so that a complete cycle is formed.
In one embodiment, the sampling tube 600 includes:
The pipe body 601 is arranged at the inner side of the collecting cavity 401 and extends into water to be detected, an elastic spacer 606 is arranged in the collecting cavity 401, the elastic spacer 606 is fixed in the pipe body 601 to form the limitation of water inlet and water outlet in two directions, a collecting head 604 is arranged at one end of the pipe body 601 in the water, and the collecting head 604 is spherical and is communicated with the pipe body 601;
the two sides of the elastic spacer 606 are respectively provided with a water inlet cavity 607 and a water outlet cavity 608, and sample water is exchanged by the water inlet cavity 607 and the water outlet cavity 608.
In this embodiment, the elastic spacer 606 is set up for unidirectional communication sample water, when in use, the piston head 205 moves to drive water flow, and the setting of the elastic spacer 606 can limit the position change of water inlet and outlet, for avoid the water inside the pipe body 601 to repeatedly enter into the inside of the sleeve 407 for charge detection in the use process, resulting in unstable condition inside the detected sample water, and then can detect different sample water.
In one embodiment, the sensor cover 700 is internally provided with the extrusion cavity 602 and extends to the outside of the sensor cover 700, one end of the extrusion cavity 602 extending to the outside of the sensor cover 700 is provided with the communication pipeline 603, the communication pipeline 603 extends to the inside of the pipe body 601, the pipe body 601 is internally provided with the coating air bag 605, and the coating air bag 605 is communicated with the extrusion cavity 602 through the communication pipeline 603.
In this embodiment, the eccentric wheel 203 extends to the inside of the extrusion cavity 602 to form extrusion to the medium inside the extrusion cavity 602, so that gas can enter the inside of the coating air bag 605 from the connecting pipeline to lighten the weight inside the pipe body 601, so that the pipe body 601 floats upwards, the height position of the pipe body 601 is changed, the position of the collection head 604 is changed, and sample water in different positions is collected, so that sample water in a larger range is collected to detect sludge impurities in water.
Under the condition that charged particles in water are found to be forced to squeeze the charged particles in the sample water under the action of external force, the charged particles in the water are locally concentrated, the concentration of the charged particles in the water is increased, and therefore the intensity of charges can be improved, and the charge collection difficulty is reduced. Meanwhile, the applied acting force applied during each sampling is ensured to be basically constant, the applied acting force cannot be neglected, interference items are reduced, and the stability of the final acquisition signal is further affected.
In the flow current meter device, the gear motor 201 rotates to drive the eccentric shaft 202, the eccentric wheel 203 is driven to move up and down through the bearing, the lower part is connected with the connecting rod 204, the eccentric wheel 203 is limited, the connecting rod 204 moves up and down, the connecting rod 204 drags the piston head 205, the piston head 205 reciprocates up and down in the sleeve 407, sample water enters the sleeve 407 through the pipe body 601, during the up and down movement of the piston head 205, the sample water in the sleeve 407 is extruded through the guide slit 502, charged particles are forced to approach the conducting ring 501, finally adsorbed on the conducting ring 501, a local micro-battery is formed with the conducting ring 501 at the upper part, when the piston head 205 moves up, the polarity of the micro-battery is opposite, a weak signal similar to sine wave is formed between the two conducting rings 501, the frequency is the rotating speed of the gear motor 201, and the signal is transmitted to the sensor plate 303 through the signal transmission cable for amplification and filtering, and the required corresponding value is obtained. The consistency of the volume of water sample drawn during each cycle can be achieved by mechanical constraints while ensuring that the sleeve 407 is filled with water. Under the condition that the amplification factors of the sensor plates 303 are consistent, the charge condition of charged particles in the sample water can be reflected through the output numerical value signals of the sensor plates 303, logic operation is carried out through an external controller, control signals are output, and finally the coagulant dosing pump is controlled to control the dosing amount.
In summary, the technical solution disclosed in the above embodiment of the present invention has at least the following advantages:
1. According to the invention, the charge value change in water is obtained to control the dosage of the coagulant, and a precise charge value change curve is obtained, so that the change amplitude of the dosage is ensured to be consistent with the change amplitude of the charge value, the problem that the dosage cannot be adjusted in real time is avoided, the coagulation difficulty is reduced, and the coagulant dosage accuracy is improved.
2. The invention changes the collection mode of charges in water, changes the existing mode of detecting the charges by the Faraday principle into local concentration of the charges, locally concentrates the charges at the detected position by squeezing the charged particles in the water, increases the concentration of the charged particles in the water, and avoids the problems that the device is huge and high in price, and is not suitable for on-site working condition detection due to the fact that the charge detection is carried out by the Faraday principle.
3. When carrying out charge collection, guarantee to exert effort to charged particle in the aquatic and be invariable basically, reduce the interference item when extrudeing charged particle, guarantee the stability of final acquisition signal, and at the in-process of taking a sample, the sample position can be in the aquatic by a wide margin motion to obtain the sample of bigger scope, avoid the problem that local charged particle in the aquatic has the difference.
4. When the sample water is extruded, two different detection modes can be generated, wherein one detection mode is uniform detection, namely the sample water can be uniformly collected by the periphery in the extruded process, so that the charged particles at each position are uniformly distributed, the other detection mode is concentrated detection mode, namely the sample water flows out from a certain position in a concentrated manner, and two different charge values are obtained.
Although the present invention has been described in connection with the above embodiments, it should be understood that the invention is not limited thereto, but may be variously modified and modified by those skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is accordingly defined by the appended claims.
Claims (10)
1. A current detection appearance for accurate control of coagulating agent, its characterized in that includes:
The box body is internally provided with an inner cavity, a feedback system and a transmission assembly are arranged in the inner cavity, and the output end of the transmission assembly extends to the outside of the box body from the outside of the box body;
The sensor cover is arranged on one side of the box body extending to the outside of the box body from the transmission component, the acquisition component is arranged at the lower part of the sensor cover and fixed at the bottom of the sensor cover, and the transmission component is provided with the connecting rod extending into the acquisition component and can realize the movement in the height direction;
The detection end is positioned at one end of the connecting rod extending to the inside of the acquisition assembly and is provided with a conducting ring for collecting charged particles, the conducting ring is arranged up and down, and one end of the connecting rod extending to the inside of the acquisition assembly is provided with a piston head and drives the piston head to squeeze the charged particles in the sample water, so that the charged particles are collected at the inner wall of the conducting ring;
the sampling tube is arranged at the outer side of the acquisition assembly and extends into water in a flexible way.
2. The current detector for accurate control of coagulation dosing of claim 1, wherein the feedback system comprises:
The starting capacitor is arranged in the box body and is positioned at the lower part of the transmission assembly;
And a sensor board fixed inside the case, with one side of the sensor board provided with a terminal block.
3. The current detector for accurate control of coagulation and dosing of claim 2, wherein the transmission assembly comprises:
The speed reducing motor is fixed in the box body, and the output end of the speed reducing motor extends from the inside of the box body to the inside of the sensor cover;
And the eccentric shaft is arranged at the outer side of the output end of the speed reducing motor, the eccentric shaft is arranged in an offset manner with the central axis of the speed reducing motor, the eccentric wheel is sleeved at the outer side of the eccentric shaft and drives the eccentric wheel to rotate, and the connecting rod extends into the eccentric wheel and follows the eccentric wheel to realize the movement in the height direction.
4. A current meter for accurate control of coagulation dosing according to claim 3 wherein the bottom of the piston head is provided with a seal member which is resiliently arranged and the piston head moves downwardly to form a squeeze against the seal member which is inflatable and collapsible, when the seal member is inflated, sample water enters the interior of the seal member and when the piston head squeezes the seal member, the seal member collapses and water in the interior thereof is discharged, the piston head being provided as a stepped shaft.
5. The current detector for accurate control of coagulation and dosing of claim 4, wherein the acquisition assembly comprises:
the collecting cavity is fixed at the bottom of the sensor cover, the connecting rod extends into the collecting cavity, the bottom of the collecting cavity is provided with an electrode upper seat, the inner side of the bottom of the electrode upper seat is provided with an electrode lower seat, and the electrode lower seat and the electrode upper seat are in threaded installation;
The lower gland is arranged at the bottom of the collecting cavity in a threaded manner to form fixed limit of the electrode lower seat.
6. The current detector for accurate control of coagulation and dosing according to claim 5, wherein an upper gland is arranged at the upper part of the collecting chamber, the upper gland is mounted on the upper part of the collecting chamber in a threaded manner and limits the position of the connecting rod, the collecting chamber is coaxially arranged with the connecting rod, a sleeve is arranged at the inner side of the electrode lower seat, the sleeve is fixed at the inner side of the electrode lower seat, the conducting ring is mounted at the inner side of the sleeve, an electrode lower plug is arranged at the bottom of the electrode lower seat, and the electrode lower plug is mounted at the inner side of the electrode lower seat in a threaded manner.
7. The current detector for accurate control of coagulation and dosing of claim 6, wherein the detection end comprises:
The guide gap is positioned between the piston head and the sleeve and is formed by matching the piston head with the inner wall of the sleeve;
The sealing head is arranged on one side of the sleeve, which is attached to the inner wall of the electrode upper seat, and is used for sealing between the sleeve and the electrode upper seat;
the pressurizing plate can be movably arranged in the piston head, an elastic body is arranged on one side of the pressurizing plate, which is positioned in the piston head, and the elastic body forms a support for the pressurizing plate.
8. The current detector for accurate control of coagulation and dosing of claim 7, wherein the guide slit is formed on the outer side of the piston head, and the guide slit is formed in a direction consistent with the axial direction of the connecting rod, and extends downward from the upper portion of the piston head.
9. The current detector for accurate control of coagulation and dosing of claim 8, wherein the sampling tube comprises:
The pipe body is arranged at the inner side of the collecting cavity and extends into water to be detected, an elastic spacer is arranged in the collecting cavity and is fixed in the pipe body to form the limit of water inlet and water outlet in two directions, one end of the pipe body, which is positioned in the water, is provided with a collecting head, and the collecting head is spherical and is communicated with the pipe body;
the two sides of the elastic spacer are respectively provided with a water inlet cavity and a water outlet cavity, and sample water is exchanged by the water inlet cavity and the water outlet cavity.
10. The current detector for accurate control of coagulation and dosing of claim 9, wherein the sensor housing is internally provided with an extrusion cavity and extends to the outer side of the sensor housing, one end of the extrusion cavity extending to the outer side of the sensor housing is provided with a communication pipeline, the communication pipeline extends to the inner side of the tube body, the inner side of the tube body is provided with a coating air bag, and the coating air bag is communicated with the extrusion cavity through the communication pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410556943.6A CN118130923B (en) | 2024-05-07 | 2024-05-07 | Current detector for accurate control of coagulation and dosing |
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| CN202410556943.6A CN118130923B (en) | 2024-05-07 | 2024-05-07 | Current detector for accurate control of coagulation and dosing |
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| CN118130923B (en) | 2024-07-12 |
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