CN108710386A - A kind of liquid level monitoring device and its method - Google Patents
A kind of liquid level monitoring device and its method Download PDFInfo
- Publication number
- CN108710386A CN108710386A CN201810738912.7A CN201810738912A CN108710386A CN 108710386 A CN108710386 A CN 108710386A CN 201810738912 A CN201810738912 A CN 201810738912A CN 108710386 A CN108710386 A CN 108710386A
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- staving
- pressure
- liquid level
- liquid
- detection components
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- 239000007788 liquid Substances 0.000 title claims abstract description 117
- 238000012806 monitoring device Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 14
- 238000001514 detection method Methods 0.000 claims abstract description 59
- 239000012528 membrane Substances 0.000 claims abstract description 52
- 210000001364 upper extremity Anatomy 0.000 claims abstract description 11
- 230000001960 triggered effect Effects 0.000 claims abstract description 5
- 239000013589 supplement Substances 0.000 claims description 22
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a kind of liquid level monitoring devices, it solves common detection components easily to incude failure under complex environment, detect and be not allowed, and the problem of causing correctly monitor liquid level, its key points of the technical solution are that, including, staving is respectively arranged on the detection components of the highest and lowest liquid level of the staving；It is connected to the connecting pipe of two detection components；Air inlet that is being opened in the staving highest liquid level or more and being connected with the connecting pipe；And drawing liquid pump；The upper limb of detection components described in upper end is set to the highest liquid level of the staving, and the lower edge of detection components described in lower end is set to the minimum level of the staving；The detection components include：Pressure membrane；The detector for being connected to the connecting pipe and being installed for pressure membrane；And in the detector, in the pressure membrane towards the pressure switch triggered when protruding outside the staving.Achieve the purpose that applied widely, detection is accurate and auto-control.
Description
Technical field
The present invention relates to liquid levels to indicate technical field, more particularly to a kind of liquid level monitoring device and its method.
Background technology
Currently, in industrial processes, it is often necessary to carry out level detection to charging basket, and then realize to expecting liquid in bucket
Automatically control.
In the prior art, level sensing is generally by way of inductive probe, but often will appear under negative pressure state
Incude failure, and can also incude caused by the reasons such as surface scale under normal conditions it is not normal, and then cause inductive probe detection not
Phenomena such as quasi-, and be not easy to regulate and control the liquid in charging basket, it is seen that traditional monitor mode scope of application is extremely limited, and
It is not suitable for complex environment, therefore has much room for improvement.
Invention content
In view of the deficiencies of the prior art, the first purpose of the invention is to provide a kind of liquid level monitoring device, has and is applicable in
Range is wide, detection is accurate and the advantages of capable of monitoring automatically.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of liquid level monitoring device, including：Staving；It is respectively arranged on the detection components of the highest and lowest liquid level of the staving；
It is connected to the connecting pipe of two detection components；Be opened in the staving highest liquid level or more and with the connecting pipe
The air inlet being connected；And for supplementing liquid into the staving or stopping the drawing liquid pump of supplement liquid；It is examined described in upper end
The upper limb for surveying component is set to the highest liquid level of the staving, and the lower edge of detection components described in lower end is set to the minimum liquid of the staving
Face；The detection components include：Pressure membrane；The connecting pipe is connected to close to the staving side, described for installing
The detector of pressure membrane；And in the detector, in the pressure membrane towards being touched when protruding outside the staving
Pressure switch send out, that liquid or stopping supplement liquid are supplemented to control the drawing liquid pump into the staving.
By using above-mentioned technical proposal, two detection components are used to carry out level sensing, air inlet to the liquid in staving
Mouth is consistent for ensureing two detection components both sides pressure, and to ensure when being vacuumized in staving, pressure membrane will not be towards bucket
Disrepair phenomenon even occurs for body side protrusion, when the liquid level in bucket reaches certain value, is located at the pressure membrane in detector in bucket
Staving side protrusion is directed away under internal pressure action, when the pressure in bucket reaches certain value, pressure membrane will trigger pressure
Power switchs, and the drawing liquid pump outside pressure switch control staving supplements liquid to carrying out supplement liquid or stopping in bucket, by using
Pressure membrane is directed away from staving side protrusion, and then the side of the pressure switch of detection trigger instrument side when pressure reaches certain value
Formula can automatically control liquid level in bucket, and detection components are not easy to detect failure under negative pressure state, improve detection result, with
Can accurately the liquid level in bucket be detected and be regulated and controled, while the scope of application is wider.
Further：The opening area of the air inlet is equal to the sum of the area of two pressure membranes.
By using above-mentioned technical proposal, when being vacuumized into staving, the pressure in connecting pipe is equal with staving, makes
Pressure membrane both sides in detection components pressure it is consistent, pressure membrane is in pressure balance, so avoid pressure membrane to
Staving side protrusion or even breakage, improve the accuracy of detection.
Further：The detector is in be open towards the bowl-shape shape inside the staving.
By using above-mentioned technical proposal, the detector of bowl-shape shape can be made for pressure membrane under the different pressure of staving
Different degrees of protrusion reaction, and to a certain extent, saved cost of manufacture.
The present invention's is designed to provide a kind of method of liquid level monitoring second, have accurate detection, automatic monitoring and
The advantage of strong applicability.
The present invention above-mentioned purpose technical scheme is that：
A kind of method of liquid level monitoring, the method based on above-mentioned level monitoring device, the method includes：
S1：When the staving (1) interior liquid level is located at the upper limb of the detection device (2) of lower end, the pressure of lower end
Power film (22) is directed away from the staving (1) side protrusion, and then triggers the pressure switch (23) of lower end；
S2：The pressure switch (23) controls the drawing liquid pump (5) and carries out liquid supplement to the staving (1)；
S3：When the staving (1) interior liquid level increases to the upper limb of the detection device (2) of upper end, upper end it is described
Pressure membrane (22) is directed away from the staving (1) side protrusion, and then triggers the pressure switch (23) of upper end；
S4：The pressure switch (23) controls the drawing liquid pump (5) and supplements the staving (1) stop liquid at this time.
Through the above technical solutions, the principle of the pressure difference using pressure membrane both sides, when staving houses liquid, staving one
Side pressure intensity values increase so that pressure membrane is directed away from staving side protrusion, and to trigger pressure switch, pressure switch controls pumping again
Liquid pump carries out liquid supplement to staving or stop liquid is supplemented, and this method can avoid detection components from being examined in negative pressure condition
Failure is surveyed, also exactly pressure membrane is controlled using pressure values in bucket, and then improve the accuracy of detection.
In conclusion the invention has the advantages that：
1, it is protruded to side by using pressure membrane when pressure reaches definite value, and then triggers the mode of pressure switch, from
Liquid level in dynamic control bucket, and detection components are not easy to detect failure under negative pressure state, improve detection result, with can be accurate
Liquid level in bucket is detected and is regulated and controled.
2, air inlet is opened in staving highest liquid level or more, and opening area is equal to the sum of the area of two pressure membranes, makes
It obtaining in staving when vacuumizing, the pressure of the pressure membrane both sides in detection components is consistent, and pressure membrane is in pressure balance, into
And pressure membrane is avoided to staving side protrusion or even breakage, improve the accuracy of detection.
Description of the drawings
Fig. 1 is the structural schematic diagram of liquid level monitoring device in the embodiment of the present invention；
Fig. 2 is the enlarged drawing at A in Fig. 1.
Reference sign：1, staving；2, detection components；3, connecting pipe；4, air inlet；5, drawing liquid pump；21, it detects
Instrument；22, pressure membrane；23, pressure switch.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Embodiment：As shown in Figure 1, a kind of liquid level monitoring device, including：Staving 1 is respectively arranged at 1 highest of staving and most
The detection components 2 of low liquid level；It is communicated in the connecting pipe 3 of two detection components 2；Be opened on 1 highest liquid level of staving into
Gas port 4；And drawing liquid pump 5；Drawing liquid pump 5 is used for the supplement liquid into staving 1 or stops supplement liquid, in upside detection components 2
Edge is located at the highest liquid level of staving 1, and detection components 2 lower edge in downside is located at the minimum level of staving 1.
As shown in Figs. 1-2, detection components 2 include：Pressure membrane 22；It is connected to detection of the connecting pipe 3 close to 1 side of staving
Instrument 21；And it is set to the pressure switch 23 in detector 21, detector 21 is installed for pressure membrane 22, when 22 direction of pressure membrane
Pressure switch 23 will be triggered outside staving 1 when protrusion, detector 21, being capable of pressure supply in being open towards the bowl-shape shape inside staving 1
Power film 22 makes different degrees of protrusion reaction under the different pressure of staving 1, and to a certain extent, has saved and be fabricated to
This, pressure switch 23 supplements liquid or stopping supplement liquid, and the opening face of air inlet 4 into staving 1 for controlling drawing liquid pump 5
Area the sum of of the product equal to two pressure membranes 22 so that for staving 1 when vacuumizing, the pressure of 22 both sides of pressure membrane is consistent, is in
Pressure balance, at the same while also ensuring that pressure membrane 22 by higher pressure in staving 1 disrepair phenomenon, Jin Er will not occur
When staving 1 houses liquid, pressure membrane 22 can make accurate response to liquid pressure, accurately to be detected to liquid level.
Upper and lower two detection components 2 carry out level sensing to 1 different location of staving respectively, when the liquid in staving 1 is only enough
When to lowest point, for the pressure membrane 22 in downside detection components 2 by the pressure in bucket, pressure membrane 22 is directed away from staving 1
Side protrusion controls the drawing liquid pump 5 outside staving 1 to being mended in staving 1 until being triggered to pressure switch 23, pressure switch 23
Filling liquid body, when the liquid in bucket reaches highest point in bucket, the pressure membrane 22 in upside detection components 2 is by the pressure in bucket
By force, therefore pressure membrane 22 is directed away from 1 side of staving and is protruding to triggering pressure switch 23, and pressure switch 23 cuts off the work of drawing liquid pump 5
It switchs so that drawing liquid pump 5 stops to supplementing liquid in staving 1, and then realizes and monitored automatically to the liquid in staving 1, and should
Detection components 2 are not easy to detect failure under negative pressure state, can accurately the liquid level in staving 1 are detected and be regulated and controled.
The use principle of the present embodiment is approximately as stating：Upper and lower two detection components 2 are used for 1 highest and lowest liquid of staving
Position is detected, and air inlet 4 is used to ensure the pressure values of two 2 other sides of detection components, with ensure pressure membrane 22 by compared with
Disrepair phenomenon will not occur when high pressure, when liquid level reaches certain value in bucket, the pressure membrane 22 being located in detector 21 exists
1 side of staving protrusion is directed away from staving 1 under pressure action, when the pressure in bucket reaches certain value, pressure membrane 22 will
Pressure switch 23 is triggered, pressure switch 23 controls the drawing liquid pump 5 outside staving 1 to carrying out supplement liquid in bucket or stopping replenisher
Body is directed away from 1 side of staving protrusion, and then detection trigger instrument 21 1 when pressure reaches certain value by using pressure membrane 22
The mode of the pressure switch 23 of side can automatically control liquid level in bucket, and detection components 2 are not easy to detect under negative pressure state and lose
Spirit improves detection result, and can accurately the liquid level in bucket is detected and be regulated and controled, while the scope of application be wider.
Based on above-mentioned liquid level monitoring device, the present embodiment further relates to a kind of method of liquid level monitoring, and this method includes：
S1：When liquid level declines in the upper limb of the detection device 2 of lower end in staving 1, the pressure membrane 22 of lower end is directed away from
1 side of staving is protruded, and then triggers the pressure switch 23 of lower end；
S2：Pressure switch 23 controls drawing liquid pump 5 and carries out liquid supplement to staving 1；
S3：When liquid increases to the upper limb of detection device 2 of upper end in staving 1, the pressure membrane 22 of upper end is directed away from
1 side of staving is protruded, and then triggers the pressure switch 23 of upper end；
S4：Pressure switch 23 controls drawing liquid pump 5 and supplements 1 stop liquid of staving at this time.
When the liquid level in staving 1 drops to the upper limb of detection device 2 of lower end, the pressure membrane 22 of lower end is by from bucket
The pressure of 1 side of body is just directed away from 1 side of staving protrusion, and then triggers pressure switch 23, and pressure switch 23 controls drawing liquid pump 5
Liquid is supplemented to staving 1, when the liquid level in staving 1 increases to 2 upper limb of detection device of upper end, the pressure membrane 22 of upper end by
Pressure from 1 side of staving is just directed away from 1 side of staving protrusion, and then triggers upper end pressure switch 23, and upper end pressure is opened
Close 23 cut-out 5 operating switches of drawing liquid pump so that staving 1 stops supplement liquid.
Using the principle of the pressure difference of 22 both sides of pressure membrane, when staving 1 houses liquid, 1 side pressure values of staving increase,
So that pressure membrane 22 is directed away from 1 side of staving protrusion, to trigger pressure switch 23, pressure switch 23 controls drawing liquid pump 5 again
Liquid supplement or stop liquid supplement are carried out to staving 1 so that the liquid in staving 1 is in highest liquid level and minimum level always
Between, this method can avoid detection components 2 from occurring detecting failure in negative pressure condition, also exactly utilize pressure values in bucket
Pressure membrane 22 is controlled, and then improves the accuracy of detection.
Embodiments described above does not constitute the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution made by within the spirit and principle of mode
Within enclosing.
Claims (4)
1. a kind of liquid level monitoring device, which is characterized in that including：Staving (1)；
It is respectively arranged on the detection components (2) of the staving (1) highest and lowest liquid level；
It is connected to the connecting pipe (3) of two detection components (2)；
Air inlet (4) that is being opened in the staving (1) highest liquid level or more and being connected with the connecting pipe (3)；With
And
For the supplement liquid into the staving (1) or the drawing liquid pump (5) for stopping supplementing liquid；
The upper limb of detection components described in upper end (2) is set to the highest liquid level of the staving (1),
The lower edge of detection components described in lower end (2) is set to the minimum level of the staving (1)；
The detection components (2) include：
Pressure membrane (22)；
The connecting pipe (3) is connected to close to the staving (1) side, detector for installing the pressure membrane (22)
(21)；And
In the detector (21), being triggered when the pressure membrane (22) is towards protrusion outside the staving (1),
To control the pressure switch (23) of the drawing liquid pump (5) supplement liquid or stopping supplement liquid into the staving (1).
2. a kind of liquid level monitoring device according to claim 1, which is characterized in that the opening area of the air inlet (4)
Equal to the sum of the area of two pressure membranes (22).
3. a kind of liquid level monitoring device according to claim 1, which is characterized in that the detector (21) is in opening direction
The internal bowl-shape shape of the staving (1).
4. a kind of method of liquid level monitoring, which is characterized in that the method is filled based on liquid level monitoring as claimed in claim 3
It sets, the method includes：
S1：When the staving (1) interior liquid level is located at the upper limb of the detection device (2) of lower end, the pressure membrane of lower end
(22) it is directed away from the staving (1) side protrusion, and then triggers the pressure switch (23) of lower end；
S2：The pressure switch (23) controls the drawing liquid pump (5) and carries out liquid supplement to the staving (1)；
S3：When the staving (1) interior liquid level increases to the upper limb of the detection device (2) of upper end, the pressure of upper end
Film (22) is directed away from the staving (1) side protrusion, and then triggers the pressure switch (23) of upper end；
S4：The pressure switch (23) controls the drawing liquid pump (5) and supplements the staving (1) stop liquid at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738912.7A CN108710386B (en) | 2018-07-06 | 2018-07-06 | Liquid level monitoring device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738912.7A CN108710386B (en) | 2018-07-06 | 2018-07-06 | Liquid level monitoring device and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108710386A true CN108710386A (en) | 2018-10-26 |
| CN108710386B CN108710386B (en) | 2024-04-05 |
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|---|---|---|---|
| CN201810738912.7A Active CN108710386B (en) | 2018-07-06 | 2018-07-06 | Liquid level monitoring device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314398A (en) * | 2019-07-15 | 2019-10-11 | 胡鑫德 | A kind of environment-friendly type toluene distillation kettle |
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| CN110314398A (en) * | 2019-07-15 | 2019-10-11 | 胡鑫德 | A kind of environment-friendly type toluene distillation kettle |
| CN110314398B (en) * | 2019-07-15 | 2021-04-09 | 唐山旭阳化工有限公司 | Environment-friendly toluene distillation still |
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| Publication number | Publication date |
|---|---|
| CN108710386B (en) | 2024-04-05 |
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