Intelligent monitor for liquid level and flow of open channel
Technical Field
The utility model relates to a liquid level and flow monitoring field especially relate to an open channel liquid level and flow intelligent monitoring appearance.
Background
In water quality monitoring, sewage open channel measurement is often used for measuring the water level or flow in an open channel weir trough. According to the requirements in the national standard HJ15-2019 technical requirements and detection methods for ultrasonic open channel sewage flow meters, the flow detection comparison process of the open channel of the surface water pollution source needs to be further standardized. The HJ 355-2019 online water pollution source monitoring system operation technical specification stipulates that at least 1 comparison test of an ultrasonic open channel flowmeter used for field installation is carried out by using a portable open channel flowmeter comparison device every quarter, and meanwhile, the field comparison is definitely recommended to be carried out by using a magnetostrictive liquid level meter.
At present, the open channel flow measurement method mainly comprises a water level method and a flow velocity method, wherein the flow velocity method needs manual operation, the automation degree is not high, and real-time online monitoring cannot be realized, the water level method mainly adopts an ultrasonic mode, and although a device for measuring the water level and the flow by ultrasonic is low in price and convenient to install, the measurement method cannot meet the current technical requirements, and the main reasons are that the method is easily influenced by bubbles, suspended matters, silt, waves and the like, the measurement precision is low, and the stability is poor.
Magnetostriction is the phenomenon that a substance having a magnetostriction property is elongated or shortened in a magnetization direction under the action of an external magnetic field, thereby generating vibration or sound waves. The method has wide application prospect in the high-tech fields of electroacoustic transducer technology, ocean detection and development technology, micro-displacement drive, vibration reduction and prevention, noise reduction and prevention systems, intelligent wings, automation technology, fuel injection technology, valves, pumps, wave oil extraction and the like. Nowadays, sensors based on magnetostrictive characteristics have been applied to hydrological monitoring, and have the advantages of high precision, high resolution, non-contact, strong reliability, fast response time and the like.
However, although the existing water level gauge based on the magnetostrictive principle can meet the requirements of high integration and the like, the problems of low intelligent degree, poor man-machine interaction performance and the like still exist, and a lot of inconvenience is brought to an operator.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides an open channel liquid level and flow intelligent monitoring appearance.
The utility model provides an open channel liquid level and flow intelligent monitoring appearance comprises instrument box and magnetostrictive liquid level meter, wherein, instrument box shell one side opening, show operating panel closure install in instrument box shell opening part, show operating panel inside encapsulation in the instrument box shell, the integration has data processing system, printing system and electrical power generating system all with data processing system links to each other, it is equipped with printout mouth, communication interface and touch-sensitive screen to show operating panel outside, touch-sensitive screen and communication interface with data processing system links to each other, the instrument box passes through communication interface with the magnetostrictive liquid level meter links to each other.
The magnetostrictive liquid level meter comprises a waveguide tube, a sensitive element, a sensor, a circuit system and a movable magnetic ring, wherein the sensor is connected with the sensitive element through the circuit system, the sensitive element is arranged in the waveguide tube along the vertical direction, the movable magnetic ring is sleeved on the waveguide tube and can move up and down along with the change of the liquid level, and a permanent magnet is arranged in the movable magnetic ring.
Specifically, the data processing system comprises a data processing chip and a circuit board, wherein the circuit board comprises a power supply access interface, a switch button, a USB interface and a memory card interface.
Specifically, the display operation panel comprises a heat dissipation system, and the heat dissipation system is connected with the data processing system.
Specifically, the power supply system includes a rechargeable battery pack.
The utility model discloses an effective technological effect is: the utility model provides an open channel liquid level and flow intelligent monitoring appearance has integrateed data processing system, printing system, cooling system and electrical power generating system at the instrument box to dispose the USB interface, the memory joint interface etc. that charge interface, intelligence switch, and support the touch-sensitive screen operation, conveniently carry out parameter setting, data reading and printing, thereby reached intelligent degree height, the good technological effect of man-machine interactive performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the embodiments and the accompanying drawings are further described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an intelligent monitor for the liquid level and flow rate of an open channel,
FIG. 2 is a schematic diagram of the external structure of a display operation panel of an intelligent monitor for the liquid level and flow rate of an open channel,
fig. 3 is a schematic diagram of the internal structure of a display operation panel of an intelligent open channel liquid level and flow rate monitor.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate only the basic mechanism of the invention in a schematic manner, and thus only show the components relevant to the invention.
As shown in fig. 1, the utility model provides an open channel liquid level and flow intelligent monitoring appearance comprises instrument box A and magnetostrictive level meter B, wherein, instrument box shell A-1 one side opening, show operating panel A-2 closed install in instrument box shell opening part, show operating panel inside encapsulation in the instrument box shell, integrated data processing system, printing system and electrical power generating system have, printing system and electrical power generating system all with data processing system links to each other, it is equipped with printout mouth, communication interface and touch-sensitive screen to show operating panel outside, touch-sensitive screen and communication interface with data processing system links to each other, the instrument box passes through communication interface with the magnetostrictive level meter links to each other.
The communication interface can be connected in a wired or wireless manner.
The magnetostrictive liquid level meter comprises a waveguide tube, a sensitive element, a sensor, a circuit system and a movable magnetic ring, wherein the sensor is connected with the sensitive element through the circuit system, the sensitive element is arranged in the waveguide tube along the vertical direction, the movable magnetic ring is sleeved on the waveguide tube and can move up and down along with the change of the liquid level, and a permanent magnet is arranged in the movable magnetic ring.
Preferably, the data processing system includes a data processing chip and a circuit board, where the circuit board includes a power access interface, a switch button, a USB interface, and a memory card interface.
Preferably, the display operation panel includes a heat dissipation system, and the heat dissipation system is connected to the data processing system.
Preferably, the power supply system includes a rechargeable battery pack.
Specific examples are described below.
Fig. 2 and 3 show the configuration of the outside of the display operation panel and the inside of the instrument box housing in this embodiment. As shown in the figure, the display operation panel comprises a panel plate body 1, a printer 2, a heat dissipation fan 3, an equipment interface 4, a USB interface 5, a communication interface 6, a power switch 7, a power socket 8, a memory card interface 9, a touch display screen 10, a data processing system 11 and a rechargeable battery pack 12.
In the embodiment, the liquid level is measured by adopting a magnetostrictive technology, real-time data measured on a magnetostrictive liquid level meter are transmitted to a data processing system 11 in the instrument box through a communication interface 6, and the data processing system 11 calculates the flow according to a formula of the liquid level and the flow.
Magnetostriction is the phenomenon that a substance having a magnetostriction property is elongated or shortened in a magnetization direction under the action of an external magnetic field, thereby generating vibration or sound waves. In this embodiment, the measuring element is a waveguide which is embedded in a sensitive element made of a special magnetostrictive material. The principle of water level measurement is as follows: the electronic chamber of the sensor generates current pulse which is transmitted on the sensitive element through an electronic circuit, a rotating magnetic field advancing along the direction of the sensitive element is generated during transmission, when the magnetic field is intersected with a magnetic field generated by a movable magnetic ring sleeved on a waveguide tube and used as position change, the sensitive element is twisted due to the magnetostrictive effect, a strain mechanical wave pulse signal is generated in the waveguide tube, and the strain mechanical wave pulse signal is generated in the waveguide tube. This strain mechanical wave pulse signal is transmitted at a fixed acoustic speed and is quickly detected by the electronic compartment of the sensor. Then the signal received by the sensor is transmitted to the instrument box through the communication interface, the direct time difference of the two pulses is calculated through a digital processing system in the instrument box, the liquid level can be accurately measured, and the flow is calculated.
The utility model discloses a carry out the measurement of liquid level position through the magnetostrictive principle, then pass through the interface with measured data and transmit to the instrument box, contain data processing system, printing system, cooling system and electrical power generating system in the instrument box, data processing system can realize the effective processing to data, and printing system can conveniently carry out the print job of data acquisition in real time. The USB interface, the memory card interface and the equipment interface can improve the use efficiency and openness of the instrument, facilitate the leading-in and leading-out of data and facilitate the connection with other electronic equipment. The instrument supports a rechargeable battery pack and a rechargeable power supply mode of operation. In addition, the touch screen can effectively improve the operability and the man-machine interaction of the instrument, and facilitates operation of the instrument and data processing of operators while displaying data in real time.
From the above description, it can be seen that the effective technical effects of the present invention are: the utility model provides an open channel liquid level and flow intelligent monitoring appearance has integrateed data processing system, printing system, cooling system and electrical power generating system at the instrument box to dispose the USB interface, the memory joint interface etc. that charge interface, intelligence switch, and support the touch-sensitive screen operation, conveniently carry out parameter setting, data reading, processing and printing, thereby reached intelligent degree height, the good technological effect of man-machine interactive performance.
In light of the foregoing, it will be readily appreciated that many changes and modifications may be made in the above-described embodiments without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.