Wireless remote transmission radar liquid level meter

Abstract

The utility model discloses a wireless teletransmission radar liquid level meter which comprises a liquid level meter body, a radar liquid level sensor, a temperature sensor and a pressure sensor, a microprocessor MCU is arranged in the liquid level meter body, and the liquid level meter body is provided with three sensor interfaces. The radar liquid level sensor, the temperature sensor and the pressure sensor are correspondingly connected. The temperature sensor is installed on the side wall of the liquid tank and connected with the liquid level meter body through a temperature data line. The radar liquid level sensor and the pressure sensor are installed on a concave-convex flange and are correspondingly connected with the liquid level meter body through a liquid level data line and a pressure data line respectively, and the concave-convex flange is fixed to a liquid tank. The device has the advantages of being convenient to install, high in reliability and precision, resistant to corrosion and the like, meanwhile, the device is combined with the industrial internet-of-things communication technology, measured data can be uploaded to a cloud platform for clients to check remotely, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid level measurement equipment, specifically a wireless remote transmission radar liquid level gauge. Background Technology

[0002] In modern petrochemical and other industrial fields, liquid level measurement in various storage tanks is a critical indicator. How to accurately and reliably measure the liquid level and calculate the liquid volume or mass in the storage tank, thereby achieving automated control and ensuring production safety, is becoming increasingly important in modern industry.

[0003] Traditional liquid level measurement methods mainly include float-type, servo-type, hydrostatic, and ultrasonic methods. The float-type liquid level measurement method is complex and has low reliability. The hydrostatic measurement method is greatly affected by the measured liquid and the ambient temperature, and it is very expensive to improve this measurement method and eliminate this influence. The servo-type liquid level measurement system has high accuracy, but the mechanical wear problem and high price of the system limit its application development. Ultrasonic liquid level measurement is easily affected by the surrounding environment, and factors such as smoke and fog in the air can greatly affect its measurement accuracy.

[0004] Radar level gauges are a type of high-precision level measuring instrument developed in recent years. They have advantages such as high resolution, large measuring range, simple structure, convenient installation, and low maintenance. Due to their non-contact measurement method, they are especially suitable for harsh working conditions such as high temperature, high pressure, and strong corrosion, and are increasingly recognized and favored by customers. Utility Model Content

[0005] The purpose of this utility model is to provide a wireless remote radar level gauge, which effectively overcomes the shortcomings of traditional level gauge measurement methods. It has the advantages of convenient installation, high reliability, high accuracy, and corrosion resistance. At the same time, when combined with industrial Internet of Things communication technology, the measurement data can be uploaded to the cloud platform for customers to view remotely.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wireless remote transmission radar level gauge includes a level gauge body and a radar level sensor, a temperature sensor and a pressure sensor. The level gauge body has a built-in microprocessor (MCU) and is provided with three sensor interfaces, which are respectively connected to the radar level sensor, the temperature sensor and the pressure sensor.

[0008] The temperature sensor is installed on the side wall of the liquid tank and is connected to the liquid level gauge body via a temperature data cable;

[0009] The radar level sensor and pressure sensor are mounted on the convex flange and are respectively connected to the level gauge body via level data lines and pressure data lines. The convex flange is fixed to the liquid tank.

[0010] Furthermore, the raised flange is connected to the flange seat by screws, and the flange seat is welded to the top of the liquid tank.

[0011] Preferably, the level gauge body integrates a GNSS positioning system and communicates with the microprocessor (MCU) via a USART serial interface. It has two functions: first, it can track the position information of the level gauge in real time; second, it provides accurate time synchronization for the entire system.

[0012] The liquid level gauge body integrates a mobile cellular network communication module, which communicates with the microprocessor MCU through a USART serial interface. This module is used to upload the measured data to a wide area network via 3 / 4G signals, allowing customers to view it remotely and making it convenient to use.

[0013] The liquid level gauge integrates a high-precision accelerometer sensor, which communicates with the microprocessor (MCU) via an SPI interface. It has two functions: first, it can calculate the attitude angle of the liquid tank using three-axis acceleration values, thereby determining whether the tank is tilted; second, if the acceleration of any axis of the accelerometer exceeds a threshold, it sends an interrupt signal to the MCU, thus indicating that movement has occurred.

[0014] Compared with existing technologies, the advantages of this utility model are: ingenious structural design, and integration of radar and wireless communication technologies into the field of liquid level measurement, suitable for liquid level measurement of media in the petrochemical industry, such as liquefied petroleum gas, liquefied natural gas, asphalt, corrosive media, etc. It has advantages that other liquid level measurement methods do not have, such as convenient installation, high reliability, high accuracy, and corrosion resistance. At the same time, combined with industrial Internet of Things communication technology, the measurement results are sent to the cloud platform through the cellular network for customers to view at any time, and it has broad application prospects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structural connection of this utility model.

[0016] Figure 2 This is a system block diagram of the present invention.

[0017] In the diagram: 1. Level gauge body, 2. Level data cable, 3. Pressure data cable, 4. Temperature data cable, 5. Temperature sensor, 6. Raised face flange, 7. Radar level sensor, 8. Pressure sensor, 9. Liquid tank, 10. Flange seat. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 and Figure 2 This utility model provides a technical solution:

[0020] A wireless remote transmission radar level gauge includes a level gauge body 1, a radar level sensor 7, a temperature sensor 5, and a pressure sensor 8. The level gauge body 1 has a built-in microprocessor MCU and is provided with three sensor interfaces, which are respectively connected to the radar level sensor 7, the temperature sensor 4, and the pressure sensor 8.

[0021] Temperature sensor 7 is installed on the side wall of liquid tank 9 and is connected to the interface of liquid level gauge body 1 through temperature data line 4. Temperature sensor 7 and temperature signal processing circuit are used to measure temperature information in real time.

[0022] The radar level sensor 7 and pressure sensor 8 are mounted on the convex flange 6 and are respectively connected to the level gauge body 1 via the level data line 2 and pressure data line 3. The convex flange 6 is connected to the flange seat 10 by screws, and the flange seat 10 is welded to the top of the liquid tank 9.

[0023] The liquid level gauge body 1 is used to measure liquid level information in real time through radar liquid level sensor 7 and liquid level signal processing circuit; and to measure pressure information in real time through pressure sensor 8 and pressure signal processing circuit.

[0024] The measured temperature, liquid level, and pressure data are fed back to the microprocessor MCU, processed, and then uploaded to the cloud platform via a wireless network.

[0025] The level gauge body 1 integrates a GNSS positioning system and communicates with the microprocessor MCU via a USART serial interface. It has two functions: first, it can track the position information of the level gauge in real time; second, it provides accurate time synchronization for the entire system.

[0026] The liquid level gauge body 1 integrates a mobile cellular network communication module, which communicates with the microprocessor MCU through a USART serial interface. This module is used to upload the measured data to a wide area network via 3 / 4G signals, allowing customers to view it remotely and making it convenient to use.

[0027] The liquid level gauge body 1 integrates a high-precision accelerometer sensor, which communicates with the microprocessor MCU via an SPI interface. It has two functions: first, it can calculate the attitude angle of the liquid tank through the three-axis acceleration values, thereby determining whether the tank is tilted; second, if the acceleration of a certain axis of the accelerometer exceeds a threshold, it sends an interrupt signal to the microprocessor MCU, thereby determining that motion has occurred.

[0028] This utility model has the advantages of convenient installation, high reliability, high precision, and corrosion resistance. In addition, when combined with industrial Internet of Things communication technology, it can upload measurement data to the cloud platform for customers to view remotely.

[0029] This invention is applicable to the liquid level measurement of media in the petrochemical industry, such as liquefied petroleum gas, liquefied natural gas, asphalt, and corrosive media. It has advantages that other liquid level measurement methods do not have, such as convenient installation, high reliability, high accuracy, and corrosion resistance. At the same time, it is combined with industrial Internet of Things communication technology to send the measurement results to the cloud platform through the cellular network so that customers can view them at any time, and has broad application prospects.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless long-range radar level gauge, characterized in that, The system includes a liquid level gauge body, a radar liquid level sensor, a temperature sensor, and a pressure sensor. The liquid level gauge body has a built-in microprocessor (MCU) and three sensor interfaces, which are respectively connected to the radar liquid level sensor, the temperature sensor, and the pressure sensor. The temperature sensor is installed on the side wall of the liquid tank and is connected to the liquid level gauge body via a temperature data cable; The radar level sensor and pressure sensor are mounted on the convex flange and are respectively connected to the level gauge body via level data lines and pressure data lines. The convex flange is fixed to the liquid tank.

2. The wireless long-range radar level gauge according to claim 1, characterized in that: The raised flange is connected to the flange seat by screws, and the flange seat is welded to the top of the liquid tank.

3. The wireless long-range radar level gauge according to claim 1, characterized in that: The level gauge body integrates a GNSS positioning system and communicates with the microprocessor MCU through a USART serial interface.

4. The wireless long-range radar level gauge according to claim 1, characterized in that, The level gauge body integrates a mobile cellular network communication module, which communicates with the microprocessor MCU through a USART serial interface.

5. A wireless long-range radar level gauge according to claim 1, characterized in that, The liquid level gauge body integrates a high-precision accelerometer sensor, which communicates with the microprocessor MCU via an SPI interface.

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