CN219217580U - Be applied to on-line monitoring adjusting device of raw water turbidity of pilot scale water factory - Google Patents
Be applied to on-line monitoring adjusting device of raw water turbidity of pilot scale water factory Download PDFInfo
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Abstract
The utility model relates to a water treatment technology, and discloses a raw water turbidity on-line monitoring and adjusting device applied to a pilot plant, which comprises a raw water inlet pipe, a raw water inlet valve, a tubular mixer, a water outlet valve, a raw water outlet pipe, a dosing port, a sampling port, an on-line turbidity detecting device, a turbidity adjusting liquid storage tank, an adjusting liquid feeding metering pump, a controller and the like; during operation, the turbidity of the raw water can be regulated to be stable within a certain range of cells for a long time by increasing the turbidity, so that various problems caused by the unstable turbidity of the raw water are solved, the experimental subject of a model water plant under a pilot scale is ensured to be successfully developed, and more accurate data results are obtained.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a raw water turbidity on-line monitoring and adjusting device applied to a pilot plant.
Background
In the technical field of water treatment, alum dosage is mainly regulated according to turbidity of inlet water during flocculation treatment so as to achieve a better flocculation effect. For a specific method of adjusting the amount of administration, reference is made to the prior patent application publication No. CN101020128A, CN111977835A, CN 114853222A.
However, the turbidity of raw water is constantly changed, and especially in a model water plant under a pilot scale, the instability of the turbidity of raw water has a certain interference to the experimental study of problems, especially in a low turbidity period, and due to the time stage of the experiment, the optimal coagulation dosage of the high turbidity and low turbidity raw water period cannot be accurately obtained in a short time, the influence on the water treatment process parameters is directly explored according to the change of the turbidity of raw water, and the presentation of the study result has a certain limitation.
In view of this, how to avoid the influence of the turbidity instability of the raw water on the pilot study results has important practical significance.
It should be noted that the content described in the background art is made by the inventor according to the technical level, the knowledge level and the searching capability of the inventor, and is only used for reference. Moreover, the content described in the background art is not necessarily the prior art, nor does it mean that the content in the background art is accurate and objective; this does not affect one skilled in the art to practice the utility model in light of the detailed description that follows.
Disclosure of Invention
The utility model aims to provide an on-line monitoring and adjusting device for the turbidity of raw water, which is applied to a pilot plant, and can enable the turbidity of raw water to be stabilized within a certain range of cells for a long time, so as to solve various problems caused by unstable turbidity of raw water; to solve one or more of the technical problems in the prior art, at least one advantageous option or creation is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
The on-line monitoring and adjusting device for the turbidity of the raw water applied to the pilot plant comprises a raw water inlet pipe, a raw water inlet valve, a tubular mixer, a water outlet valve, a raw water outlet pipe, a dosing port, a sampling port, an on-line turbidity detection device, a turbidity adjusting liquid storage tank, an adjusting liquid feeding metering pump and a controller; the water outlet end of the raw water inlet pipe is connected with the water inlet end of the tubular mixer through the raw water inlet valve, the water outlet end of the tubular mixer is connected with the raw water outlet pipe through the water outlet valve, the water inlet end and the water outlet end of the tubular mixer are respectively provided with the dosing port and the sampling port, the online turbidity detection device is connected with the sampling port, the turbidity control liquid storage tank is connected with the dosing port through the control liquid dosing metering pump, and the controller is connected with the online turbidity detection device and the control liquid dosing metering pump.
More preferably, the raw water inlet valve and the raw water outlet valve are automatic control valves, and the controller is connected with the raw water inlet valve and the raw water outlet valve.
More preferably, the raw water inlet valve and the raw water outlet valve are solenoid valves, electric valves, pneumatic valves or manual valves.
More preferably, the tube mixer is a DN80 tube static mixer.
More preferably, the online turbidity detection device is an online laser turbidity meter with the measuring range of 0-100 NTU.
More preferably, the regulating liquid adding metering pump is a digital metering pump with the measuring range of 0-10L/h.
More preferably, the controller is a programmable logic controller.
The beneficial effects of the utility model are as follows: the utility model provides a raw water turbidity on-line monitoring and adjusting device applied to a pilot plant, which comprises a raw water inlet pipe, a raw water inlet valve, a tubular mixer, a water outlet valve, a raw water outlet pipe, a dosing port, a sampling port, an on-line turbidity detecting device, a turbidity adjusting liquid storage tank, an adjusting liquid feeding metering pump, a controller and the like; during operation, the turbidity of the raw water can be regulated to be stable within a certain range of cells for a long time by increasing the turbidity, so that various problems caused by the unstable turbidity of the raw water are solved, the experimental subject of a model water plant under a pilot scale is ensured to be successfully developed, and more accurate data results are obtained.
Drawings
FIG. 1 is a schematic diagram showing the structure of the on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant.
Reference numerals illustrate.
1: raw water inlet pipe, 2: raw water inlet solenoid valve, 3: tubular mixer, 4: water outlet electromagnetic valve, 5: administration port, 6: sampling port, 7: on-line turbidity detection device, 8: turbidity adjustment liquid holding vessel, 9: dosing metering pump of regulating fluid, 10: PLC controller, 11: and a raw water outlet pipe.
Detailed Description
The following description of the specific embodiments of the present utility model is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.
Aiming at the characteristic of unstable raw water turbidity, the utility model provides the raw water turbidity on-line monitoring and adjusting device applied to the pilot scale water works, which adjusts the raw water turbidity to be stable within a certain range of cells for a long time by increasing the turbidity, so as to solve various problems caused by the unstable raw water turbidity, ensure that the experimental subject of the model water works under the pilot scale is smoothly developed, and obtain more accurate data results.
The utility model provides a raw water turbidity on-line monitoring and adjusting device applied to a pilot plant, which comprises a raw water inlet pipe 1, a raw water inlet electromagnetic valve 2, a tubular mixer 3, a water outlet electromagnetic valve 4, a dosing port 5, a sampling port 6, an on-line turbidity detecting device 7, a turbidity adjusting liquid storage tank 8, an adjusting liquid dosing metering pump 9, a PLC (programmable logic controller) 10 and a raw water outlet pipe 11, wherein the water outlet end of the raw water inlet pipe 1 is connected with the water inlet end of the tubular mixer 3 through the raw water inlet electromagnetic valve 2, the water outlet end of the tubular mixer 3 is connected with the raw water outlet pipe 11 through the water outlet electromagnetic valve 4, the dosing port 5 and the sampling port 6 are respectively arranged on the water inlet end and the water outlet end of the tubular mixer 3, the on-line turbidity detecting device 7 is connected with the sampling port 6, the turbidity adjusting liquid storage tank 8 is connected with the dosing pump 9 through the adjusting liquid dosing metering pump 5, and the PLC 10 is connected with the on-line turbidity detecting device 7 and the adjusting liquid dosing pump 9.
In this embodiment, the raw water inlet electromagnetic valve 2 and the water outlet electromagnetic valve 4 are connected with the PLC controller 10, so as to realize automatic opening and closing of raw water inlet and outlet. It is obvious that in some embodiments, the raw water inlet solenoid valve 2 and the water outlet solenoid valve 4 may be replaced by other electric valves, pneumatic valves or manual valves, which is not limited to the present embodiment.
In this embodiment, the tube mixer 3 is preferably a DN80 tube static mixer. The tubular static mixer is a pipeline spiral mixing device and has the characteristics of high speed, high efficiency and low energy consumption. The tubular static mixer is of a three-stage composition (the number of stages can also be increased depending on the properties of the mixing medium). Each section of mixer is provided with a fixed helical blade which is twisted by 180 degrees, and the helical blade is divided into a left-handed helical blade and a right-handed helical blade. The spiral blades in two adjacent sections rotate in opposite directions and are staggered by 90 degrees. In order to facilitate the installation of the helical blades, the cylinder body is made into two semi-circles, two ends are connected by using flange, and gaps of the cylinder body are bonded by using epoxy resin, so that the sealing requirement of the cylinder body is ensured. The helical blades of the mixer are stationary and only the material or medium being mixed moves, through which the fluid is passed without external energy other than pressure reduction. The method mainly comprises the steps of flow segmentation, radial mixing and reverse rotation, and the two mediums are continuously and intensively mixed and diffused to achieve the mixing purpose. Obviously, in some embodiments, according to actual needs, those skilled in the art may also select other tubular mixers known in the prior art or capable of being implemented in the future, so long as the purpose of fluid mixing is achieved; the present embodiment is not limited.
In this embodiment, the online turbidity detecting device 7 is preferably an HZX4000 online laser turbidity meter manufactured by Shanghai zhen energy industry limited company, which has a large measurement range, accurate measurement and high measurement accuracy. In some embodiments, the online turbidity detection device 7 may be an online laser turbidity meter with a measuring range of 0-100 ntu, and the power consumption is lower; the present embodiment is not limited.
In this embodiment, the adjusting solution stored in the turbidity adjusting solution storage tank 8 is preferably kaolin and humic acid solution, so as to facilitate the subsequent coagulation treatment. In some embodiments, other conditioning fluids known in the art or available in the future may be selected; the present embodiment is not limited.
In this embodiment, the regulating fluid adding metering pump 9 is preferably an EHN-C16VC1R type IWAKI digital electromagnetic pump with a rated flow rate of 4.8L/h. The digital metering pump is small-sized adding equipment, and can accurately add liquid according to the requirements of application environments. In some embodiments, according to different actual needs, a digital metering pump with the measuring range of 0-10L/h of other types can be selected to replace the digital metering pump; the present embodiment is not limited.
The specific model selection of the PLC controller and the design of the connection circuits of the PLC controller with the raw water inlet solenoid valve 2, the raw water outlet solenoid valve 4, the on-line turbidity detecting device 7, and the regulating fluid feeding metering pump 9 are all common technical knowledge known to those skilled in the art, and will not be described in detail herein. In some embodiments, other controllers known in the art or capable of being implemented in the future may be selected to replace the PLC controller by those skilled in the art, depending on the actual needs.
The working principle of the raw water turbidity on-line monitoring and adjusting device applied to the pilot scale water plant is as follows.
1) During normal operation, the raw water inlet electromagnetic valve 2, the tubular mixer 3 and the water outlet electromagnetic valve 4 are opened, the regulating liquid is controlled by the PLC 10 to be fed into the metering pump 9 to regulate the liquid output of the turbidity regulating liquid, the turbidity regulating liquid enters the tubular mixer 3 through the administration port 5, the raw water is fully mixed through the tubular mixer 3, a water sample is taken at the sampling port 6, and real-time turbidity data of the water sample is obtained through the online turbidity detection device 7.
2) When the PLC 10 monitors that the data of the online turbidity detection device 7 reaches the set target turbidity range, namely the adding amount of the regulating fluid adding metering pump 9 meets the target requirement, and fine adjustment is carried out according to the adding amount at the moment and the small floating of the turbidity of the inlet water.
The overall flow operation steps are as follows.
The first step: the raw water inlet electromagnetic valve 2 is opened, the regulating liquid feeding metering pump 9 is kept closed, the on-line turbidity detection device 7 is opened, and the raw water turbidity is initially monitored.
And a second step of: the regulating liquid adding metering pump 9 is opened, a target regulating turbidity value is input through an operation display (such as a touch screen) connected with the PLC 10, the output quantity of the regulating liquid adding metering pump 9 is gradually regulated through the PLC 10 according to the real-time reading of the online turbidity detection device 7, the output quantity maintaining time of the regulating liquid adding metering pump 9 each time is 1 minute, and the stability and the authenticity of data are ensured.
And a third step of: after the reading of the on-line turbidity detection device 7 is stabilized at the target turbidity adjustment value, the output of the adjusting liquid adding metering pump 9 is kept unchanged until the turbidity of the raw water changes greatly, and then the former two steps of adjustment are carried out.
3) According to different raw water turbidity and target turbidity adjustment values, a turbidity adjustment database is formed by adding the adjustment liquid, and then the adding amount can be estimated preliminarily according to the data in the database, so that the response speed of adjusting the turbidity is improved.
In addition, in the description of the present utility model, directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate that the direction and positional relationship are based on that shown in the drawings, are merely for convenience of description and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and are not to be construed as limiting the specific protection scope of the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the utility model, "at least" means one or more, unless clearly specifically defined otherwise.
In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present utility model is not limited to the specific embodiments described above, but is intended to cover modifications and alternatives falling within the spirit and scope of the utility model as defined by the appended claims and their equivalents. The portions of the detailed description that are not presented are all prior art or common general knowledge.
Claims (7)
1. The device is characterized by comprising a raw water inlet pipe, a raw water inlet valve, a tubular mixer, a water outlet valve, a raw water outlet pipe, a dosing port, a sampling port, an online turbidity detection device, a turbidity regulating fluid storage tank, a regulating fluid feeding metering pump and a controller;
the water outlet end of the raw water inlet pipe is connected with the water inlet end of the tubular mixer through the raw water inlet valve, the water outlet end of the tubular mixer is connected with the raw water outlet pipe through the water outlet valve, the water inlet end and the water outlet end of the tubular mixer are respectively provided with the dosing port and the sampling port, the online turbidity detection device is connected with the sampling port, the turbidity control liquid storage tank is connected with the dosing port through the control liquid dosing metering pump, and the controller is connected with the online turbidity detection device and the control liquid dosing metering pump.
2. The on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant according to claim 1, wherein the raw water inlet valve and the raw water outlet valve are automatic control valves, and the controller is connected with the raw water inlet valve and the raw water outlet valve.
3. The on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant according to claim 1, wherein the raw water inlet valve and the raw water outlet valve are electromagnetic valves, electric valves, pneumatic valves or manual valves.
4. The on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant according to claim 1, wherein the tubular mixer is a DN80 tubular static mixer.
5. The on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant according to claim 1, wherein the on-line turbidity detecting device is an on-line laser turbidity meter with the measuring range of 0-100 ntu.
6. The on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant according to claim 1, wherein the adjusting liquid adding metering pump is a digital metering pump with the measuring range of 0-10L/h.
7. The on-line monitoring and adjusting device for the turbidity of raw water applied to a pilot plant according to claim 1, wherein the controller is a programmable logic controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223104525.9U CN219217580U (en) | 2022-11-22 | 2022-11-22 | Be applied to on-line monitoring adjusting device of raw water turbidity of pilot scale water factory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223104525.9U CN219217580U (en) | 2022-11-22 | 2022-11-22 | Be applied to on-line monitoring adjusting device of raw water turbidity of pilot scale water factory |
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| CN219217580U true CN219217580U (en) | 2023-06-20 |
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| CN202223104525.9U Active CN219217580U (en) | 2022-11-22 | 2022-11-22 | Be applied to on-line monitoring adjusting device of raw water turbidity of pilot scale water factory |
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