CN206198786U - A kind of depositing reservoir mud level meter - Google Patents
A kind of depositing reservoir mud level meter Download PDFInfo
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- CN206198786U CN206198786U CN201620977983.9U CN201620977983U CN206198786U CN 206198786 U CN206198786 U CN 206198786U CN 201620977983 U CN201620977983 U CN 201620977983U CN 206198786 U CN206198786 U CN 206198786U
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- depositing reservoir
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Abstract
The utility model provides a kind of depositing reservoir mud level meter, is used to measure the height of a solid-phase layer in a depositing reservoir, and liquid is divided into clear water layer, mixed liquid layer and solid layer from top to bottom in the depositing reservoir；The depositing reservoir mud level meter includes：One connecting rod, is provided with three liquid level trigger switch；The signal receiving device being connected with small end, is used to receive the liquid level trigger signal that three liquid level trigger switch send；Three ball floats on the connecting rod are sheathed on, a liquid level trigger switch is accordingly triggered by floating respectively.The alluvial degree of depositing reservoir solid-phase layer can be measured, pointedly to take correspondingly spoil disposal measure, it is to avoid excessive spoil disposal or spoil disposal are not in time.
Description
Technical field
The utility model is related to environmental technology field, more particularly to waste water treatment, and in particular to a kind of depositing reservoir mud level meter.
Background technology
In field of Environment Protection, waste water is processed, by the way of end link is often precipitated using clarification, by waste water
The solids such as sludge are separated with clear water, and the clear water of qualified discharge or reuse is capable of to obtain, and normal in order to ensure depositing reservoir makes
With the mud height that mud level meter implements the alluvial of monitoring depositing reservoir bottom need to be configured.
The depositing reservoir mud level meter being currently known mainly ultrasonic measurement mode, also known as sludge interface instrument, generally
Ultrasonic sensor piezo-electric crystal is excited loaded in smooth cylindrical plastic cavity when crystal receives voltage, makes generation a kind of
Sonar Signal, ultrasonic wave is with certain frequency and angle is launched, and scans layering interfaces.Measured parameter is to calculate transmitting
Time after ultrasonic signal arrival layering interfaces as used by solia particle and reflected back towards receiver.
The velocity of sound changes with the physical properties of measurement medium, and by the pressure of temperature and air, and liquid phase
The change in concentration influence of region and solid phase region.In order to obtain accurate measurement result, suitable system variable (example is also selected
Such as：Pulse length or the velocity of sound) etc. factor.
But because depositing reservoir is not made up of complete liquid phase region and solid phase area, as shown in figure 1, existing in depositing reservoir certain
, there is certain obstruction in the mixed liquid layer in region, cause to measure the deviation it sometimes appear that certain in level detecting, on the other hand,
Because in system variable is set, such as, because of different operating modes, set no variable causes one kind not for the velocity of sound and pulse length
Stability, therefore ultrasonic wave mud level meter cannot accurately measure the mud position of the depositing reservoir under all operating modes in actual applications.Only
When having clear water layer and sludge blanket interface is clear, the measurement of ultrasonic wave mud level meter can just obtain optimum measurement result, otherwise be difficult to measure
Accurately；In addition, system parameter setting is relatively complicated, such as velocity of sound and pulse length because of different operating modes, set no variable,
Cause a kind of unstability.
Utility model content
Regarding to the issue above, the purpose of this utility model is to provide a kind of depositing reservoir mud level meter, can measure depositing reservoir
The alluvial degree of solid-phase layer, pointedly to take correspondingly spoil disposal measure, it is to avoid excessive spoil disposal or spoil disposal are not in time.
It is that, up to above-mentioned purpose, the concrete technical scheme that the utility model is taken is：
A kind of depositing reservoir mud level meter, is used to measure the height of a solid-phase layer in a depositing reservoir, and liquid is from upper in the depositing reservoir
Clear water layer, mixed liquid layer and solid layer are divided under；The depositing reservoir mud level meter includes：
One connecting rod, is provided with three liquid level trigger switch, respectively high level trigger switch, middle liquid level trigger switch and low liquid
Position trigger switch；
The signal receiving device being connected with small end, is used to receive the liquid level that three liquid level trigger switch send
Trigger signal；
It is sheathed on three ball floats on the connecting rod, including high level measurement ball float, middle level gauging ball float and low liquid level
Measurement ball float；The high level measurement ball float is used to send liquid level by the triggering high level trigger switch that floats in a liquid
Trigger signal；The middle level gauging ball float is used to send liquid level by triggering of the floating in a liquid middle liquid level trigger switch
Trigger signal；The low liquid level measurement ball float is used to send liquid level by the triggering low liquid level trigger switch that floats in a liquid
Trigger signal.
Further, averag density of any one of three ball floats is equivalent to the mixed liquid layer density.
Further, the mixed liquid layer density is 1100kg/m3To 1300kg/m3, put down of any one of three ball floats
Equal density is 1100kg/m3To 1200kg/m3。
Further, it is located at lower section of any one of three ball floats on the surface of the connecting rod to be equipped with one spacing
Portion.
Further, the 6m to 7m of the length of the connecting rod；The high level measurement ball float triggers the high level triggering
The positional distance connecting rod top 1m to 1.5m of switch, the middle level gauging ball float triggers the position of the middle liquid level trigger switch
Apart from connecting rod top 3m to 4m, the low liquid level measurement ball float triggers the positional distance connecting rod top of the low liquid level trigger switch
6m to 7m.
Further, the signal receiving device connects a control system.
Further, the control system is a desulfurization DCS (Distributed Control System distributed AC servo systems
System).
By taking above-mentioned technical proposal, depositing reservoir mud level meter measurement of the present utility model can reach most of wastewater treatment
The level detecting requirement of the depositing reservoir of system, is transmitted to DCS by using on-off model, facilitates operations staff to depositing reservoir mud
The control of position.Make Waste Water Treatment more stable operation, solve the problems, such as that the excessive desliming and desliming of depositing reservoir are asked not in time
Topic.
To sum up, depositing reservoir mud level meter of the present utility model eliminates design defect, it is ensured that the safe and stable operation of system；And
Labour is liberated to a certain extent, lowers labor service and maintenance cost；Finally, equipment dependability and certainty of measurement are also improved.
Brief description of the drawings
Fig. 1 is depositing reservoir liquid layer subregion and sludge interface instrument measurement result schematic diagram in background technology.
Fig. 2 is with the structural representation of depositing reservoir mud level meter in an embodiment with the utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description.
Depositing reservoir mud level meter of the present utility model is applied to most of Waste Water Treatments, such as desulfurization wastewater treatment system
The level detecting of middle depositing reservoir, main measuring principle is according to depositing reservoir middle and upper part clear water layer, middle part mixed liquid layer and bottom sludge
The different physical property (density) of layer sets three measuring nodes, can accurately measure the mud position of depositing reservoir.
As shown in Fig. 2 in one embodiment, being used to measure the clarification of the solid-phase layer of depositing reservoir in desulfurization wastewater treatment system
Pond mud level meter includes：Connecting rod 1, is provided with three liquid level trigger switch (being normally inside connecting rod, not shown), respectively high level
Trigger switch, middle liquid level trigger switch and low liquid level trigger switch；
The signal receiving device 4 being connected with small end, is installed on one and is fixedly connected on flange 3, is used to receive three
The liquid level trigger signal that liquid level trigger switch sends；
Three ball floats 2 on connecting rod 1 are sheathed on, including high level measurement ball float, middle level gauging ball float and low liquid level are surveyed
Amount ball float；High level measurement ball float is used to send liquid level trigger signal by the triggering high level trigger switch that floats in a liquid；
Middle level gauging ball float is used to send liquid level trigger signal by liquid level trigger switch in triggering of floating in a liquid；Low liquid level is surveyed
Amount ball float is used to send liquid level trigger signal by the triggering low liquid level trigger switch that floats in a liquid.In the surface position of connecting rod 1
A limiting section is equipped with lower section of any one of three ball floats, to prevent ball float from being slid from the lower end of connecting rod 1, and by each ball float
Limited within the specific limits along the scope of rod slide, form three surveying ranges.
Wherein, in measurement part (connecting rod, ball float) is because of immersion liquid, as far as possible from anticorrosion material, such as 316L is stainless
Steel matter or other corrosion resistant alloy materials etc.；Length of connecting rod and ball float position should be according to different clarifications in Waste Water Treatment
The different operating modes in pond are customized, and such as depositing reservoir whole height 10m, bottom 4m part are bullet, topmost overflow layer, clear water
Layer 2m, mixes liquid layer 0.5m, and root remaining portion sludge blanket then considers monolithic linkage length 6m to 7m highly, spheroid height according to
Need, bottom position sets low alarm signal, median signal is set apart from 3m to 4m positions away from top, and top 1m to 1.5m positions set
High signal；Connecting rod float switch top terminal box as three liquid level trigger switch of signal receiving device liquid level trigger signal
And transmit to desulfurization DCS, 3 signal conditions are added in desulfurization DCS, it is displayed in the operation interface of operations staff, convenient fortune
Monitoring of the administrative staff to depositing reservoir mud position.
Above-described embodiment is illustrated by taking desulfurization wastewater treatment system as an example, but the utility model and is only not limited to desulfurization
Waste Water Treatment, can also be used to process with similar operating mode and set the Waste Water Treatment of DCS.
The depositing reservoir mud level meter installation and debugging of above-described embodiment description are convenient, using the different principle of Media density, principle
Simply, metering system simple and fast, is set without carrying out cumbersome system.
And the way of output optimizes, because system needs reason, Waste Water Treatment depositing reservoir to depositing reservoir mud position without entering
The accurate supervision of row, need to only understand the height mud position of mud position, facilitate combustion adjustment to be desliming or be circulated, therefore change
The switching value node way of output of original analog output to existing technology.
The utility model utilizes the measuring principle of connecting rod float switch, for liquid phase region, mixed liquid zone and solid phase in depositing reservoir
The different physical properties (density) in area set three surveying ranges.Ball float is installed on connecting rod, this ball float is hollow ball, herein
Before, the density of depositing reservoir different zones is calculated, for example：With clear water layer density in project management department of Datang environment Ma'an Mountain depositing reservoir
It is 1000kg/m3, it is 1100-1300kg/m3 to mix liquid layer density, and the density of solid-phase layer is then in more than 1300kg/m3.Using difference
The volume of spheroid, and spheroid mass, are converted into the density in spheroid certain volume, i.e., hollow ball regard as one it is uniform close
The entirety of degree.The density design of spheroid makes spheroid stable suspersion mix above liquid layer in the density range of mixed liquid layer, equivalent
Think that mixed liquid layer belongs to a part for sludge.According to connecting rod float switch principle, high, medium and low three are added to open in the middle of connecting rod
Node is measured in pass, non-not triggered by the floating of three ball floats；When low liquid level node is triggered, sludge delivery pump stops to desliming
Machine starts sludge circulation pump for slurry, makes depositing reservoir self-loopa, and central liquid level signal allows to start sludge delivery pump sometimes,
When high level is triggered, desliming is carried out, it is necessary to start sludge delivery pump equivalent to an alarm signal, in order to avoid too high, the shadow in mud position
Ring the normal operation of desulfurization wastewater system.Different control measure are used according to different solid phase layer heights, clarification can be avoided
The excessive desliming problem in pond or desliming are not in time.
Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.It is based on
Embodiment in the utility model, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, belongs to the scope of the utility model protection.
Claims (6)
1. a kind of depositing reservoir mud level meter, is used to measure the height of a solid-phase layer in a depositing reservoir, and liquid is from up in the depositing reservoir
Under be divided into clear water layer, mixed liquid layer and solid layer；It is characterised in that it includes：
One connecting rod, is provided with three liquid level trigger switch, and respectively high level trigger switch, middle liquid level trigger switch and low liquid level is touched
Hair switch；
The signal receiving device being connected with small end, is used to receive the liquid level triggering that three liquid level trigger switch send
Signal；
It is sheathed on three ball floats on the connecting rod, including high level measurement ball float, middle level gauging ball float and low liquid level measurement
Ball float；The high level measurement ball float is used to send liquid level triggering by the triggering high level trigger switch that floats in a liquid
Signal；The middle level gauging ball float is used to send liquid level triggering by triggering of the floating in a liquid middle liquid level trigger switch
Signal；The low liquid level measurement ball float is used to send liquid level triggering by the triggering low liquid level trigger switch that floats in a liquid
Signal.
2. depositing reservoir mud level meter as claimed in claim 1, it is characterised in that the mixed liquid layer density is 1100kg/m3Extremely
1300kg/m3, averag density of any one of three ball floats is 1100kg/m3To 1200kg/m3。
3. depositing reservoir mud level meter as claimed in claim 1, it is characterised in that be located at described three on the surface of the connecting rod and float
Lower section is equipped with a limiting section of any one of ball.
4. depositing reservoir mud level meter as claimed in claim 1, it is characterised in that the 6m to 7m of the length of the connecting rod；The height
Level gauging ball float triggers the positional distance connecting rod top 1m to 1.5m of the high level trigger switch, and the middle level gauging is floated
Ball triggers the positional distance connecting rod top 3m to 4m of the middle liquid level trigger switch, and the low liquid level measurement ball float triggering is described low
The positional distance connecting rod top 6m to 7m of liquid level trigger switch.
5. depositing reservoir mud level meter as claimed in claim 1, it is characterised in that the control system of the signal receiving device connection one
System.
6. depositing reservoir mud level meter as claimed in claim 5, it is characterised in that the control system is a desulfurization DCS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977983.9U CN206198786U (en) | 2016-08-29 | 2016-08-29 | A kind of depositing reservoir mud level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977983.9U CN206198786U (en) | 2016-08-29 | 2016-08-29 | A kind of depositing reservoir mud level meter |
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| Publication Number | Publication Date |
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| CN206198786U true CN206198786U (en) | 2017-05-31 |
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| CN201620977983.9U Active CN206198786U (en) | 2016-08-29 | 2016-08-29 | A kind of depositing reservoir mud level meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741564A (en) * | 2021-09-14 | 2021-12-03 | 国网四川省电力公司检修公司 | Liquid level monitoring control system of sewage collecting tank |
-
2016
- 2016-08-29 CN CN201620977983.9U patent/CN206198786U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741564A (en) * | 2021-09-14 | 2021-12-03 | 国网四川省电力公司检修公司 | Liquid level monitoring control system of sewage collecting tank |
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