CN110377063A - Simple liquid-level auto-control device - Google Patents
Simple liquid-level auto-control device Download PDFInfo
- Publication number
- CN110377063A CN110377063A CN201910738780.2A CN201910738780A CN110377063A CN 110377063 A CN110377063 A CN 110377063A CN 201910738780 A CN201910738780 A CN 201910738780A CN 110377063 A CN110377063 A CN 110377063A
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- Prior art keywords
- floating ball
- close
- switch
- plc
- ball rod
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- 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)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention discloses a kind of simple liquid-level auto-control devices, comprising: the fixed bracket of floating ball, floating ball rod, floating ball rod, at least one close switchs fix bracket, PLC control unit；Floating ball rod fixes bracket, fixes bracket close to switch and is column-spacingly vertically arranged at the top of water tank, floating ball is located in water tank, floating ball top vertical is connected with floating ball rod, it is provided on floating ball rod close to switch baffle, has from top to bottom successively been positioned apart from close to the fixed bracket of switch multiple close to switch；PLC control unit is connected to acquire the position signal close to switch baffle with close to switch, and PLC control unit can control the operation of water pump in water tank according to position signal.The simple liquid-level auto-control device has many advantages, such as that cost is relatively low, and economical and practical, easy maintenance, service life of equipment be long, is not influenced by medium temperature, pressure, mist, concentration, is applicable in the more severe place of production environment.
Description
Technical field
The present invention relates to Liquid levels, and in particular, to a kind of simple liquid-level auto-control device.
Background technique
As the rapid development of sociaty and economy, there is the field for largely needing level sensing and automatic control in Workshop
Institute, since the environment of production is multifarious, there is also many differences for the medium and temperature in various ponds, existing also not detect
Control means have: the detection of ultrasonic wave, radar, magnetic float level indicator or floating-ball level switch.
Although above-mentioned detection is able to solve certain problem, these detection means have the defects that certain: as surpassed
Sonic liquid-level meter, which measures the place for having barrier to block, water mist and volatile materials generate, is not allowed, or even generates measurement blind area；
Radar level gauge is stained with medium in antenna itself accidentally to report an error, and crystallization icing phenomenon such as occur can report an error, and need to heat,
Troublesome maintenance in winter, cost are more expensive；Magnetic float level indicator also can not be capable of measuring resisting medium, magnetic with physical contact between media
Property material such as demagnetization easily cause liquidometer cisco unity malfunction；Floating ball or floating drum level meter are movable objects, in sticky liquid
In can make dirty.
Summary of the invention
The object of the present invention is to provide a kind of simple liquid-level auto-control device, which has
Cost is relatively low, economical and practical, easy maintenance, service life of equipment be long, do not influenced by medium temperature, pressure, mist, concentration,
The advantages that being applicable in production environment more severe place.
To achieve the goals above, the present invention provides a kind of simple liquid-level auto-control devices, comprising: floating ball, floating ball
The fixed bracket of connecting rod, floating ball rod, at least one close switchs fix bracket, PLC control unit；Floating ball rod fixation bracket,
Close to the top fixed bracket and be column-spacingly vertically arranged at water tank is switched, floating ball is located in water tank, and floating ball top vertical connects
It is connected to floating ball rod, is provided on floating ball rod close to switch baffle, close to switching fixed bracket from top to bottom successively compartment of terrain
It is provided with multiple close to switch；PLC control unit is connected with close to switch to acquire the position signal close to switch baffle, and
And PLC control unit can control the operation of water pump in water tank according to position signal.
Preferably, it is each close to switch on fixed bracket close to number of switches be four；Four close to switch from upper and
Under the work liquid level of water pump that is corresponding in turn to are as follows: water plays liquid level, high speed liquid level, low speed liquid level, termination of pumping liquid level.
It preferably, is 2 close to support bracket fastened quantity is switched.
Preferably, floating ball is stainless steel floating ball.
Preferably, the support bracket fastened inside of floating ball rod is formed with accommodating chamber along vertical direction, and floating ball rod is fixed
The edge surface of bracket is formed with through slot to close at the fixed bracket of switch, and floating ball rod can be moved back and forth along accommodating chamber, be connect
Nearly switch baffle is towards through slot.
Preferably, PLC control unit includes PLC, frequency converter；PLC is connected with frequency converter, the motor of frequency converter and water pump
It is connected；PLC is capable of handling position signal and signal is sent to frequency converter, the operation shape of Frequency Converter Control water pump by treated
State；Meanwhile PLC can acquire the failure and operating state signal of frequency converter.
Preferably, PLC control unit further includes industrial personal computer, and PLC is communicated by Ethernet and industrial personal computer so that work
WINCC picture on control machine can monitor water pump state in real time.
Preferably, simple liquid-level auto-control device further includes control box, and control box can pass through manual operation device
Each component.
According to the above technical scheme, the working principle of simple liquid-level auto-control device provided by the invention is as follows: floating ball
It is placed on the water surface of water side, when water surface oscilaltion, drives floating ball rod to move up and down by buoyancy, the fixed branch of floating ball rod
Frame is fixed floating ball rod, does not allow floating ball rod to swing, and be can move up and down.It is for fixing close to fixed bracket is switched
Close to switch, it is the position signal for detecting close switch close to baffle is switched, keeps off when close to switch baffle in close switch
When preceding, there is signal close to switch, otherwise no signal.Position signal reaches PLC, and PLC handles signal and controls the height of water pump in turn
Speed, low speed operation.
It is less for control point, the case where continuously detecting liquid level is not needed, it is each close to a kind of corresponding control requirement of switch.
For example, illustrating that pond is anhydrous when floating ball is in pond low level, the operation of water pump can be stopped；When water level in water pool is slightly higher, in order to
Energy conservation can require water pump low speed to run；When water level in water pool is higher, water pump high-speed cruising can be required, to take water away as early as possible.
When water level aloft when it is necessary to starting water pump at full speed.It can be seen that above-mentioned apparatus passes through the even running of Liquid level water pump,
By the assistance of computer program, the automatization level of management is improved, keeps daily management more perfect.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the preferred embodiment of simple liquid-level auto-control device provided by the invention；
Fig. 2 is the electric control theory figure of the preferred embodiment of Fig. 1.
Description of symbols
1, floating ball 2, floating ball rod
3, close to switch 4, close switch baffle
5, the fixed bracket 6 of floating ball rod, close switch fix bracket
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality that " top, bottom, inside and outside " etc. is included in the term
Only represent orientation of the term under normal service condition, or be those skilled in the art understand that be commonly called as, and be not construed as pair
The limitation of the term.
The present invention provides a kind of simple liquid-level auto-control devices, as shown in Figs. 1-2, comprising: floating ball 1, floating ball rod
2, the fixed bracket 5 of floating ball rod, at least one close switchs fix bracket 6, PLC control unit；Floating ball rod fixation bracket 5,
Close to the top fixed bracket 6 and be column-spacingly vertically arranged at water tank is switched, floating ball 1 is located in water tank, 1 top vertical of floating ball
It is connected with floating ball rod 2, is provided on floating ball rod 2 close to switch baffle 4, fixes bracket 6 from top to bottom successively close to switching
It has been positioned apart from multiple close to switch 3；PLC control unit is connected to acquire close to the position of switch baffle 4 with close to switch 3
Confidence number, and PLC control unit can control the operation of water pump in water tank according to position signal.
The working principle of above-mentioned simple liquid-level auto-control device is as follows: floating ball 1 is placed on the water surface of water side, works as the water surface
When oscilaltion, floating ball rod 2 is driven to move up and down by buoyancy, the fixed bracket 5 of floating ball rod is fixed floating ball rod, is not allowed
Floating ball rod 2 swings, and can move up and down.It is for fixed close to switch 3 close to fixed bracket 6 is switched, close to switch
Baffle 4 is for detecting the position signal close to switch 3, when close to switch baffle 4 gear before close switch 3, close to switch 3
There is signal, otherwise no signal.Position signal reaches PLC, and PLC handles signal and and then controls the high speed of water pump, low speed operation.
It is less for control point, the case where continuously detecting liquid level is not needed, a kind of control of the correspondence of switch 3 is each approached and wants
It asks.For example, illustrating that pond is anhydrous when floating ball 1 is in pond low level, the operation of water pump can be stopped；When water level in water pool is slightly higher,
For energy conservation, water pump low speed can be required to run；When water level in water pool is higher, water pump high-speed cruising can be required, to take out as early as possible
Leak water.When water level aloft when it is necessary to starting water pump at full speed.It can be seen that above-mentioned apparatus passes through the steady of Liquid level water pump
Operation, by the assistance of computer program, improves the automatization level of management, keeps daily management more perfect.
In the above-described embodiment, close to can be selected in a wide range close to 3 quantity of switch on the fixed bracket 6 of switch
It selects, it is contemplated that the requirement of water pump general operating status in specific works, it is preferable that each close to the fixed bracket 6 of switch
On close to 3 quantity of switch be four；The work liquid level of four water pumps being corresponding in turn to from top to bottom close to switch 3 are as follows: water rises
Liquid level, high speed liquid level, low speed liquid level, termination of pumping liquid level.Water pump can be adjusted in time by the way that four work liquid levels are arranged as a result,
Working condition.
In the above-described embodiment, can be selected in a wide range close to the quantity for switching fixed bracket 6, but from
Consider on this, it is preferable that the quantity close to the fixed bracket 6 of switch is 2.Two nearly functions of switching fixed bracket 6 and detect
Unanimously, when any close to switching damage, one of them is spare, it is ensured that equipment safety operation reliability.
In the present invention, the type of floating ball 1 can select in a wide range, but in order to improve the use longevity of floating ball 1
Life and stability, it is preferable that floating ball 1 is stainless steel floating ball.
In the present embodiment, the fixation of floating ball rod 2 and guidance mode can select in a wide range, preferably
Ground, the inside of the fixed bracket 5 of floating ball rod are formed with accommodating chamber, and the side of the fixed bracket 5 of floating ball rod along vertical direction
In face of being formed with through slot close at the fixed bracket 6 of switch, floating ball rod 2 can be moved back and forth along accommodating chamber, close to switch gear
Piece 4 is towards through slot.Accommodating chamber can play the role of fixed and be oriented to floating ball rod 2 as a result, while through slot plays and gives close open
A possibility that pass 3, close close switch baffle 4.
In the above-described embodiment, the specific component of PLC control unit can select in a wide range, but in order to
Further convenient for the operating status of control water pump, it is preferable that PLC control unit includes PLC, frequency converter；PLC is connected with frequency converter
It connects, frequency converter is connected with the motor of water pump；PLC is capable of handling position signal and signal is sent to frequency converter by treated,
The operating status of Frequency Converter Control water pump；Meanwhile PLC can acquire the failure and operating state signal of frequency converter.
On the basis of the above embodiment, in order to further increase Intellectualized monitoring, it is preferable that PLC control unit is also
Including industrial personal computer, PLC is communicated by Ethernet with industrial personal computer so that the WINCC picture on industrial personal computer can monitor in real time
Water pump state.
In order to further increase the practicability of the monitoring device, it is preferable that simple liquid-level auto-control device further includes behaviour
Make case, control box can pass through each component of manual operation device.It, can also be as a result, when PLC breaks down or when field adjustable
Scene regulates and controls water pump state by control box.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (8)
1. a kind of simple liquid-level auto-control device characterized by comprising floating ball (1), floating ball rod (2), floating ball rod are solid
Fixed rack (5), at least one close switchs fix bracket (6), PLC control unit；The floating ball rod fixed bracket (5) connects
The nearly top for switching fixed bracket (6) and being column-spacingly vertically arranged at water tank, the floating ball (1) are located in the water tank, institute
It states floating ball (1) top vertical to be connected with the floating ball rod (2), be provided on the floating ball rod (2) close to switch baffle
(4), described to be from top to bottom successively positioned apart from multiple close switches (3) close to switch fixed bracket (6)；The PLC control
Unit processed is connected with described close to switch (3) to acquire the position signal close to switch baffle (4), and the PLC
Control unit can control the operation of water pump in the water tank according to the position signal.
2. simple liquid-level auto-control device according to claim 1, which is characterized in that each described close to switch fixation
On bracket (6) close to switch (3) quantity be four；The water pump that four close switches (3) are corresponding in turn to from top to bottom
Work liquid level are as follows: water plays liquid level, high speed liquid level, low speed liquid level, termination of pumping liquid level.
3. simple liquid-level auto-control device according to claim 1, which is characterized in that described close to the fixed bracket of switch
(6) quantity is 2.
4. simple liquid-level auto-control device according to claim 1, which is characterized in that the floating ball (1) is stainless steel
Floating ball.
5. simple liquid-level auto-control device according to claim 1, which is characterized in that the fixed bracket of the floating ball rod
(5) inside is formed with accommodating chamber along vertical direction, and the edge surface of the floating ball rod fixed bracket (5) is to described close
It switchs and is formed with through slot at fixed bracket (6), the floating ball rod (2) can move back and forth along the accommodating chamber, described to connect
Nearly switch baffle (4) is towards the through slot.
6. simple liquid-level auto-control device according to claim 1, which is characterized in that the PLC control unit includes
PLC, frequency converter；The PLC is connected with the frequency converter, and the frequency converter is connected with the motor of water pump；The PLC can
It handles the position signal and signal is sent to the frequency converter, the operation of water pump described in the Frequency Converter Control by treated
State；Meanwhile the PLC can acquire the failure and operating state signal of the frequency converter.
7. simple liquid-level auto-control device according to claim 1, which is characterized in that the PLC control unit is also wrapped
Industrial personal computer is included, the PLC is communicated the WINCC picture energy so that on the industrial personal computer by Ethernet and the industrial personal computer
Enough monitor water pump state in real time.
8. simple liquid-level auto-control device according to claim 1, which is characterized in that the simple liquid automatic control
Device further includes control box, and the control box can pass through each component of manual operation described device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738780.2A CN110377063A (en) | 2019-08-12 | 2019-08-12 | Simple liquid-level auto-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910738780.2A CN110377063A (en) | 2019-08-12 | 2019-08-12 | Simple liquid-level auto-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110377063A true CN110377063A (en) | 2019-10-25 |
Family
ID=68258884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910738780.2A Pending CN110377063A (en) | 2019-08-12 | 2019-08-12 | Simple liquid-level auto-control device |
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| Country | Link |
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| CN (1) | CN110377063A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446108A (en) * | 2020-04-08 | 2020-07-24 | 内蒙古中钰泰德煤炭有限公司 | Novel float switch |
| CN111590213A (en) * | 2020-05-11 | 2020-08-28 | 张海兵 | Automatic focusing high-efficiency laser cutting device |
| CN113399481A (en) * | 2021-06-08 | 2021-09-17 | 莱芜钢铁集团银山型钢有限公司 | Liquid level redundancy device of cold rolling processing liquid tank |
| WO2022236518A1 (en) * | 2021-05-09 | 2022-11-17 | 吴江新民高纤有限公司 | Glue tank liquid level control device of bamboo stick composite fabric production equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446108A (en) * | 2020-04-08 | 2020-07-24 | 内蒙古中钰泰德煤炭有限公司 | Novel float switch |
| CN111590213A (en) * | 2020-05-11 | 2020-08-28 | 张海兵 | Automatic focusing high-efficiency laser cutting device |
| WO2022236518A1 (en) * | 2021-05-09 | 2022-11-17 | 吴江新民高纤有限公司 | Glue tank liquid level control device of bamboo stick composite fabric production equipment |
| CN113399481A (en) * | 2021-06-08 | 2021-09-17 | 莱芜钢铁集团银山型钢有限公司 | Liquid level redundancy device of cold rolling processing liquid tank |
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Application publication date: 20191025 |