CN216871086U - Liquid level monitoring system of liquid storage tank - Google Patents
Liquid level monitoring system of liquid storage tank Download PDFInfo
- Publication number
- CN216871086U CN216871086U CN202123157948.2U CN202123157948U CN216871086U CN 216871086 U CN216871086 U CN 216871086U CN 202123157948 U CN202123157948 U CN 202123157948U CN 216871086 U CN216871086 U CN 216871086U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- controller
- storage tank
- liquid
- liquid storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a liquid storage tank liquid level monitoring system, includes liquid storage tank, level gauge, manometer and controller, and in the liquid storage tank was located to the level gauge for monitor liquid storage tank's liquid level, on the valve of liquid storage tank was located to the manometer for monitor liquid storage tank's pressure, the controller was used for receiving the liquid level signal of level gauge monitoring and the pressure signal of manometer monitoring, and sent the instruction of warning according to liquid level signal and pressure signal. According to the liquid level monitoring system of the liquid storage tank, the data of the liquid level meter and the pressure gauge are dynamically monitored, the reliability of the data is guaranteed to the maximum extent based on situation sensing, compared with the original data, the reliable data can better serve an automatic control system, and the accuracy and the stability of the control system are guaranteed.
Description
Technical Field
The utility model belongs to the technical field of water treatment, and particularly relates to a liquid level monitoring system of a liquid storage tank.
Background
At present, most of the instrument data of the liquid level meters in the inner CN and DN pools in the water plant are directly collected by the PLC and then participate in system control, the quality of the output data of the instrument greatly affects the automatic control system, and the liquid level data often has inaccurate phenomenon. Because the instrument data transmission process may be influenced by factors such as electromagnetic interference, transmission error or abnormal environment influence on an instrument probe, the collected original data often has the conditions of zero jump, abnormal fluctuation, noise doping and the like, and the original data directly participate in an automatic control system at present, has a large influence on the control system and also causes great difficulty in data history tracing. Therefore, there is a need for a reservoir level monitoring system that can achieve a conversion of raw data to reliable data.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a liquid level monitoring system of a liquid storage tank, which can realize the conversion from original data to reliable data.
In order to achieve the purpose, the utility model provides a liquid level monitoring system of a liquid storage tank, which comprises a liquid level meter, a pressure meter and a controller, wherein the liquid level meter is arranged in the liquid storage tank and used for monitoring the liquid level of the liquid storage tank, the pressure meter is arranged on a valve of the liquid storage tank and used for monitoring the pressure of the liquid storage tank, and the controller is used for receiving a liquid level signal monitored by the liquid level meter and a pressure signal monitored by the pressure meter and sending a warning instruction according to the liquid level signal and the pressure signal.
Preferably, the controller compares the liquid level signal with a preset liquid level low value and a preset liquid level high value, and when the liquid level signal is lower than the preset liquid level low value or higher than the preset liquid level high value, the controller sends out a warning instruction.
Preferably, the controller receives the pressure signal and compares the pressure signal with a preset pressure range, and when the pressure signal exceeds the preset pressure range, the controller sends a warning instruction.
Preferably, the device further comprises an emptying valve, wherein the emptying valve is connected to the liquid storage tank and is used for discharging liquid in the liquid storage tank;
the controller controls the opening and closing of the emptying valve, and when the controller controls the opening of the emptying valve, if the liquid level signal monitored by the liquid level meter and/or the pressure signal monitored by the pressure gauge is unchanged, the controller judges that the liquid level meter and/or the pressure gauge has faults and sends out a warning instruction.
Preferably, the intelligent alarm system further comprises an alarm system, the controller is in communication connection with the alarm system, and the alarm system receives the warning instruction of the controller and performs warning.
Preferably, the alarm system further comprises a communication system, and the controller is connected with the alarm system through the communication system.
Preferably, the liquid level monitoring device further comprises a display, and the display is used for displaying the liquid level signal, the pressure signal and a warning instruction.
The liquid level monitoring system of the liquid storage tank has the beneficial effects that: through the data dynamic monitoring to level gauge and manometer, because the reliability of situation perception furthest has guaranteed the data, compare original data, reliable data can be better serve autonomous system, guarantee control system's accuracy and stability.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 shows a schematic view of a reservoir level monitoring system of an exemplary embodiment of the present invention;
FIG. 2 illustrates a flow chart of control logic for a reservoir level monitoring system in accordance with an exemplary embodiment of the present invention;
FIG. 3 illustrates a graph of operational data for a reservoir level monitoring system in accordance with an exemplary embodiment of the present invention.
Description of reference numerals:
the liquid level meter comprises a liquid storage tank 1, a liquid level meter 2, a controller 3, a pressure gauge 4, an emptying valve 5 and an alarm system 6.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
In order to solve the problems in the prior art, as shown in fig. 1 to 3, the utility model provides a liquid level monitoring system of a liquid storage tank, which comprises a liquid storage tank 1, a liquid level meter 2, a pressure gauge 4 and a controller 3, wherein the liquid level meter 2 is arranged in the liquid storage tank 1 and used for monitoring the liquid level of the liquid storage tank 1, the pressure gauge 4 is arranged on a valve of the liquid storage tank 1 and used for monitoring the pressure of the liquid storage tank 1, and the controller 3 is used for receiving a liquid level signal monitored by the liquid level meter 2 and a pressure signal monitored by the pressure gauge 4 and sending a warning instruction according to the liquid level signal and the pressure signal.
The liquid level monitoring system of the liquid storage tank can be used for monitoring the liquid levels of inner CN and DN pools in a water plant of the water plant, the reliability of data is guaranteed to the maximum extent based on situation perception through dynamic monitoring of data of the liquid level meter and the pressure gauge, compared with original data, the reliable data can better serve an automatic control system, and the accuracy and the stability of the control system are guaranteed.
In this embodiment, the controller 3 compares the liquid level signal with a preset liquid level low value and a preset liquid level high value, and when the liquid level signal is lower than the preset liquid level low value or higher than the preset liquid level high value, the controller 3 sends out a warning instruction. The preset liquid level low value and the preset liquid level high value are liquid level threshold values, and data of the liquid level meter are accurately judged through threshold value judgment, so that data abnormity is avoided.
The controller 3 receives the pressure signal monitored by the pressure gauge 4 and compares the pressure signal with a preset pressure range, and when the pressure signal exceeds the preset pressure range, the controller 3 sends out a warning instruction. The preset pressure range is a pressure threshold value, and the data of the pressure gauge are accurately judged through threshold value judgment.
The preset liquid level low value and the preset liquid level high value are empirical data, and can be calculated and obtained according to the relation between the liquid level and the time, namely the liquid level change speed of the liquid storage tank is multiplied by the time, the discharge amount in the preset time is obtained, the theoretical liquid level value of the liquid storage tank changing along with the time can be obtained by comparing the discharge amount with the original capacity of the liquid storage tank, and after interference factors are eliminated, the liquid level threshold range, namely the preset liquid level low value and the preset liquid level high value can be obtained.
The liquid level monitoring system of the liquid storage tank related to the utility model can be used for the level gauge, manometer and other required instruments to carry on the data processing, when using the level gauge 2, when the liquid level data changes, carry on the craft to calculate according to the relation of liquid level and time, can obtain the reasonable threshold value scope by this, namely preserve the low value of liquid level and preserve the high value of liquid level, the threshold value scope can be regarded as the empirical value, when the liquid level signal that the level gauge 2 monitors exceeds the threshold value scope, can judge the instrument trouble, the controller 3 sends out and warns the order and prompts the staff to deal with; when the liquid level signal monitored by the liquid level meter 2 is within the threshold range, the liquid level signal can not change obviously, and when the liquid level signal changes irregularly, the next step of signal processing is carried out, so that the reliability of data is ensured. Similarly, the preset pressure range may be set based on experience. The process is used as a threshold judgment process, the data of the instrument is accurately judged, and finally reliable data are obtained, so that the accuracy and the stability of the system are guaranteed.
The liquid storage tank liquid level monitoring system further comprises an emptying valve 5, wherein the emptying valve 5 is connected to the liquid storage tank 1 and used for discharging liquid in the liquid storage tank 1.
The switching of 3 control atmospheric valve 5 of controller, according to the technology demand, when carrying out the backwash to liquid storage tank 1, when 3 control atmospheric valve 5 of controller opened promptly, the liquid level of liquid storage tank 1 reduces, and pressure reduces, and the liquid level signal of 2 monitors of level gauge and the pressure signal numerical value of manometer 4 monitoring should reduce, consequently, if the liquid level signal of 2 monitors of level gauge and/or manometer 4 monitoring pressure signal do not change, controller 3 judges the trouble of level gauge 2 or manometer 4 and sends out the instruction of reporting an emergency. The process is used as a process judgment process, and the reliability of data is further ensured on the basis of a threshold judgment process.
The controller 3 receives the liquid level signal monitored by the liquid level meter 2 and forms liquid level data, and the controller 3 cleans the liquid level data and stores and records the liquid level data. The controller 3 performs cleaning on the liquid level data including: the method comprises the steps of obtaining a plurality of liquid level data within a period of time, calculating an average value of the plurality of liquid level data, deleting abnormal liquid level data with a difference larger than a preset deviation from the average value, obtaining cleaned liquid level data, and recording and storing the cleaned liquid level data as running data. The average value may be a specific value or a range value, fig. 3 shows a data graph of a section before the test point, the abscissa is time, and the ordinate is a meter display value.
Wherein, predetermine the deviation and can be 0, 3 pressure data's of controller washing is with the reason, when liquid storage tank 1 normal operating, the liquid level data of liquid storage tank 1 change little, or should maintain in certain limit fluctuation, when level gauge 2 monitored out unusual liquid level data, controller 3 sends the instruction of warning, regard as the trip point, controller 3 carries out delay or filtering processing to the trip point, wash operation data promptly, stable data after will handling drops into the operation as operation data, avoid all the other equipment of mill to receive unusual liquid level data to influence and realize corresponding instruction, thereby avoid unnecessary energy consumption, practice thrift manufacturing cost greatly, if too high when liquid level data, some power device automatic operation, thereby produce unnecessary energy consumption. The controller 3 carries out time delay or filtering processing on the jumping points, namely, abnormal liquid level data is eliminated, the controller 3 does not record and store the abnormal liquid level data, but only records and stores normal operation data, the process is used as a data cleaning process, on the basis of a threshold value judging process and a process judging process, the conversion from original data to reliable data of the instrument in a factory is further realized, accurate judgment on instrument system data is formed through threshold value judgment, process judgment and data cleaning, the reliability of the data is guaranteed to the maximum extent based on situation awareness, compared with the original data, the reliable data can better serve the automatic control system, and the accuracy and the stability of the control system are guaranteed.
The liquid level monitoring system of the liquid storage tank further comprises an alarm system 6, the controller 3 is in communication connection with the alarm system 6, and the alarm system 6 receives the warning instruction of the controller 3 and gives a warning.
The controller is connected with the alarm system through the communication system. The communication system used herein may be a wired connection or a wireless connection.
Still include the display, the display is used for display data and warning information, and the display can show liquid level signal, pressure signal and the instruction of warning, and alarm system 6 can indicate or warn through the warning light at the display through computer program, and this process is as prior art, and is not the key of this application, specifically no longer gives unnecessary details.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. The utility model provides a liquid storage tank liquid level monitoring system, its characterized in that, includes level gauge, manometer and controller, the level gauge is located in the liquid storage tank, be used for the monitoring the liquid level of liquid storage tank, the manometer is located on the valve of liquid storage tank, be used for the monitoring the pressure of liquid storage tank, the controller is used for receiving the level signal of level gauge monitoring with the pressure signal of manometer monitoring, and according to the level signal with the pressure signal sends the instruction of warning.
2. The system of claim 1, wherein the controller compares the liquid level signal with a preset liquid level low value and a preset liquid level high value, and the controller issues a warning command when the liquid level signal is lower than the preset liquid level low value or higher than the preset liquid level high value.
3. The system of claim 2, wherein said controller receives said pressure signal and compares it with a predetermined pressure range, and when said pressure signal exceeds said predetermined pressure range, said controller issues a warning command.
4. The reservoir level monitoring system of claim 1, further comprising a vent valve connected to the reservoir for venting liquid from the reservoir;
the controller controls the opening and closing of the emptying valve, and when the controller controls the opening of the emptying valve, if the liquid level signal monitored by the liquid level meter and/or the pressure signal monitored by the pressure gauge is unchanged, the controller judges that the liquid level meter and/or the pressure gauge has faults and sends out a warning instruction.
5. The liquid level monitoring system of claim 1, further comprising an alarm system, wherein the controller is in communication with the alarm system, and the alarm system receives the warning command from the controller and performs warning.
6. The reservoir level monitoring system of claim 5, further comprising a communication system through which the controller and the alarm system are connected.
7. The reservoir level monitoring system of claim 6, further comprising a display for displaying the level signal, the pressure signal, and the warning instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123157948.2U CN216871086U (en) | 2021-12-15 | 2021-12-15 | Liquid level monitoring system of liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123157948.2U CN216871086U (en) | 2021-12-15 | 2021-12-15 | Liquid level monitoring system of liquid storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216871086U true CN216871086U (en) | 2022-07-01 |
Family
ID=82146078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123157948.2U Active CN216871086U (en) | 2021-12-15 | 2021-12-15 | Liquid level monitoring system of liquid storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216871086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543540A (en) * | 2023-05-04 | 2023-08-04 | 贵州新思维科技有限责任公司 | Online intelligent monitoring and sensing system and sensing method for pool liquid level based on Internet of things |
-
2021
- 2021-12-15 CN CN202123157948.2U patent/CN216871086U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543540A (en) * | 2023-05-04 | 2023-08-04 | 贵州新思维科技有限责任公司 | Online intelligent monitoring and sensing system and sensing method for pool liquid level based on Internet of things |
| CN116543540B (en) * | 2023-05-04 | 2023-10-03 | 贵州新思维科技有限责任公司 | Online intelligent monitoring and sensing system and sensing method for pool liquid level based on Internet of Things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109524139B (en) | Real-time equipment performance monitoring method based on equipment working condition change | |
| CN216871086U (en) | Liquid level monitoring system of liquid storage tank | |
| CN103824130A (en) | Grain condition forecasting and early warning method and system based on SVM | |
| CN113029305B (en) | Hydropower station water level measurement self-adaptive fault diagnosis and correction system and method | |
| CN111811576A (en) | Monitoring and warning integrated equipment for oil storage tank of finished oil | |
| CN111090939A (en) | Early warning method and system for abnormal working condition of petrochemical device | |
| CN109211564B (en) | Self-adaptive threshold detection method for health assessment of ball screw pair | |
| CN113401758B (en) | Elevator door opening and closing fault detection method | |
| CN117593854A (en) | Intelligent water supply system | |
| CN113326585A (en) | Energy efficiency abnormity early warning method and device for gas-fired boiler and computer equipment | |
| CN109243652A (en) | A kind of nuclear power plant system compressed air require data validity judges system and method | |
| CN215335746U (en) | Water seal liquid level wireless monitoring device | |
| CN114298243A (en) | Data processing method, device and equipment | |
| CN108765192A (en) | A kind of transformer upper layer oil temperature prediction technique, system and equipment based on big data | |
| CN104571096A (en) | On-line fault diagnosis method and system of coal-fired power plant coal feeder | |
| CN109827631B (en) | Weight type intelligent material level measuring method and system | |
| US7818146B2 (en) | Method and device for the diagnosis of technical devices disposed within an industrial installation | |
| JP2012027670A (en) | Demand amount diagnosis metering device | |
| CN113051700A (en) | Equipment reliability monitoring method and device | |
| Venuprasad et al. | Automatic monitoring and controlling of pressure using PLC and SCADA | |
| CN208333541U (en) | The vacuum equipment of preventive maintenance | |
| CN112666886B (en) | Method for acquiring flow of reverse osmosis integrated unit | |
| CN113355479B (en) | Method and system for detecting related limit abnormity of steelmaking converter sublance | |
| CN109740892A (en) | It is a kind of that water detection system and method are used based on the analysis of water conservancy data | |
| CN112925229B (en) | Energy data acquisition management method and system for traditional Chinese medicine production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |