Pressure monitoring device and system for movable storage tank

Abstract

The invention relates to the technical field of movable storage tanks, in particular to a pressure monitoring device and system for a movable storage tank, which comprises a pressure gauge, a three-way pipe and a signal transmission unit, the three-way pipe is arranged at the top end of the storage tank, and a wireless pressure sensor is arranged at one end of a branch pipe of the three-way pipe; the signal transmission unit comprises a fixed signal receiver and a movable signal receiver, the pressure value of the storage tank is visually monitored and displayed in real time through a pressure gauge, when the position of the storage tank is fixed, pressure signals transmitted by the wireless pressure sensors are received through the fixed signal receiver, and when the storage tank displaces, the pressure signals are transmitted through the wireless pressure sensors. Receiving a pressure signal transmitted by the wireless pressure sensor of the corresponding storage tank through a mobile signal receiver; through a dynamic monitoring mode, the operation state of the monitoring device is flexibly switched according to the storage condition of the storage tank, and the pressure change of the storage tank in various states, especially the pressure of the storage tank in a moving state, is monitored in real time, so that the storage safety of the storage tank is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of mobile storage tank technology, and in particular to a pressure monitoring device and system for mobile storage tanks. Background Technology

[0002] Mobile storage tanks are widely used in industries such as energy, chemical, medical and food to store and transport media such as liquefied gases and liquid chemicals. The pressure inside the storage tank is a key parameter that characterizes its safety status and the amount of contents. Excessive pressure poses an explosion risk, while excessively low pressure or an abnormal drop may indicate a leak, both of which can lead to serious safety hazards.

[0003] Most current tank pressure monitoring devices cannot achieve real-time, remote, and continuous pressure monitoring, especially during tank movement and transfer. Because the internal medium of the moving tank is in motion, the pressure situation inside the tank is particularly complex and changeable. However, the pressure situation of the tank in the moving state is mostly in the monitoring blind zone. Although the device does not detect that the tank pressure exceeds the threshold, if the tank pressure changes significantly in a short period of time, it still poses a certain risk. However, operators often find it difficult to detect abnormal changes in tank pressure in time, thus failing to effectively monitor the tank pressure under various conditions, which poses a significant safety hazard.

[0004] Therefore, in view of the difficulty of effectively monitoring the pressure of existing mobile storage tanks under various conditions, a pressure monitoring device and system for mobile storage tanks can be designed. Through dynamic monitoring, the operating status of the monitoring device can be flexibly switched according to the storage conditions of the storage tank, so as to ensure real-time monitoring of the pressure changes of the storage tank under various conditions, especially the pressure of the storage tank under mobile conditions, thereby effectively improving the storage safety of the storage tank. Summary of the Invention

[0005] To overcome the problem that most tank pressure monitoring devices often fail to detect abnormal changes in tank pressure in a timely manner, thus failing to effectively monitor tank pressure under various conditions and posing significant safety hazards, this invention is proposed.

[0006] The technical solution of the present invention is as follows: a pressure monitoring device for a portable storage tank, including a pressure gauge, a three-way pipe and a signal transmission unit. One end of the three-way pipe is connected to the top of the storage tank, and a wireless pressure sensor is installed at one end of a branch pipe of the three-way pipe. The signal transmission unit includes a fixed signal receiver and a mobile signal receiver. Multiple sets of fixed signal receivers are provided and are installed at multiple fixed points in the filling, transfer and storage space of the storage tank. The mobile signal receiver is installed at the base of the storage tank. The wireless pressure sensor can be a TE65 / 69 series pressure sensor.

[0007] Preferably, the pressure value of the storage tank is monitored and displayed in real time by a pressure gauge. A wireless pressure sensor is installed at the connection pipe of the storage tank using a three-way pipe, thus enabling the installation of a wireless pressure sensor without modifying the tank structure. The wireless pressure sensor acquires the tank pressure data and transmits the data to a data receiver. When the storage tank is stationary, the fixed signal receiver receives pressure signals from multiple wireless pressure sensors. When the storage tank is moved, the fixed signal receiver displays an offline status for the corresponding storage tank. At this time, the mobile signal receiver receives pressure signals from the wireless pressure sensors of the corresponding storage tank. This allows for flexible switching of the monitoring device's operating status according to the storage conditions of the storage tank, ensuring real-time monitoring of tank pressure changes under various conditions, especially the pressure of the storage tank during movement, thereby improving the safety of storage.

[0008] Preferably, the other end of the three-way pipe is equipped with an intake valve, an exhaust valve, a safety valve, or a pressure gauge.

[0009] Preferably, the wireless pressure sensor is battery powered and equipped with a Wi-Fi or Bluetooth wireless communication module.

[0010] Preferably, the fixed signal receiver pre-stores the authentication information of all authorized wireless pressure sensors, including the device name and password, and is configured with multiple wireless communication channels for receiving monitoring data transmitted by the wireless pressure sensors when the tank is in a fixed state.

[0011] Preferably, the mobile signal receiver is used to receive monitoring data transmitted by the wireless pressure sensor when the corresponding storage tank is in motion.

[0012] A pressure monitoring system for a portable storage tank of the device includes: The GPS positioning module is built into the mobile signal receiver and is used to identify and monitor the location of the storage tank in real time and transmit location information in real time. The status analysis module is used to receive the tank location information transmitted by the GPS positioning module, identify whether the tank is in a fixed position or a moving position, and switch the signal receiving mode accordingly. The data acquisition module is used to acquire and store the pressure data transmitted by the wireless pressure sensor of the corresponding storage tank, and to analyze and process the data. The data transmission module is used to transmit the tank pressure data collected by the data acquisition module to the management platform or mobile network terminal; The early warning module receives the data results analyzed by the data acquisition module and issues an early warning signal when the pressure value or pressure change rate of the storage tank exceeds a set threshold.

[0013] Preferably, the data acquisition module includes: a. Static monitoring unit, used to switch fixed signal receivers to receive pressure data collected by wireless pressure sensors corresponding to multiple storage tanks based on the analysis results of the status analysis module; b. Dynamic monitoring unit, used to switch the mobile signal receiver to receive pressure data collected by the wireless pressure sensor of the corresponding storage tank based on the analysis results of the status analysis module.

[0014] Preferably, the static monitoring unit is used to collect and monitor pressure data when the storage tank is at a fixed location. The unit receives pressure data sent by all authorized wireless pressure sensors in the area in a polling or concurrent manner through a fixed signal receiver, performs preliminary processing on the received pressure data, including data format conversion, timestamp marking and local data caching, and uploads batch data to the central management platform when the network is connected.

[0015] Preferably, the dynamic monitoring unit is used to monitor pressure when the storage tank is in a moving state. The unit obtains pressure data emitted by the wireless pressure sensor on the storage tank through a mobile signal receiver. The dynamic monitoring unit has a pressure change trend analysis algorithm to monitor abnormal pressure fluctuations in a short period of time.

[0016] Preferably, after receiving a warning signal, the warning module activates the audible and visual alarm device on the corresponding tank seat side to issue an audible and visual alarm.

[0017] The beneficial effects of this invention are: 1. The pressure value of the storage tank is monitored and displayed in real time through a pressure gauge. The pressure data of the storage tank is obtained by a wireless pressure sensor at one end of the three-way pipe and transmitted to the data receiving end. When the storage tank is stationary, the pressure signals transmitted by multiple wireless pressure sensors are received through a fixed signal receiver. When the storage tank is moved, the fixed signal receiver displays an offline status for the corresponding storage tank. At this time, the pressure signal transmitted by the wireless pressure sensor of the corresponding storage tank is received through a mobile signal receiver, thereby effectively monitoring the pressure of the storage tank under various conditions and improving the safety of storage tanks. 2. Dynamically monitor the storage tanks in motion, monitor the absolute value of the tank pressure in real time, and monitor the pressure fluctuations in each time interval to promptly detect abnormal pressure fluctuations, effectively predict abnormal storage conditions, and reduce abnormal storage. Attached Figure Description

[0018] Figure 1 The diagram shown is a three-dimensional structural schematic of a pressure monitoring device for a portable storage tank according to the present invention. Figure 2 The diagram shown is a three-dimensional structural schematic of a pressure monitoring device for a portable storage tank according to the present invention. Figure 3The diagram shown illustrates the workflow of a pressure monitoring system for a portable storage tank according to the present invention.

[0019] Explanation of reference numerals in the attached diagram: 1. Pressure gauge; 2. T-junction; 3. Wireless pressure sensor; 401. Fixed signal receiver; 402. Mobile signal receiver. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1 Please see Figure 1 and Figure 2 This invention provides an embodiment of a pressure monitoring device and system for a portable storage tank, comprising a pressure gauge 1, a three-way pipe 2, and a signal transmission unit. One end of the three-way pipe 2 is connected to the top of the storage tank, and a wireless pressure sensor 3 is installed at one end of a branch pipe of the three-way pipe 2. An inlet valve, an exhaust valve, a safety valve, or the pressure gauge 1 is installed at the other end of the three-way pipe 2. The wireless pressure sensor 3 is battery-powered and equipped with a Wi-Fi or Bluetooth wireless communication module. The signal transmission unit includes a fixed signal receiver 401 and a mobile signal receiver 402, with multiple sets of fixed signal receivers 401. Fixed signal receivers 401 are installed at multiple fixed points in the filling, transfer, and storage tank space. The fixed signal receivers 401 pre-store the authentication information of all authorized wireless pressure sensors 3, including device name and password, and are configured with multiple wireless communication channels for receiving monitoring data transmitted by the wireless pressure sensors 3 when the tank is fixed. The mobile signal receivers 402 are installed on the base of the tank and are used to receive monitoring data transmitted by the wireless pressure sensors 3 when the corresponding tank is in motion. The wireless pressure sensors 3 can be selected from the TE65 / 69 series pressure sensors.

[0022] Please see Figure 3 In this embodiment, a pressure monitoring system for a portable storage tank of the device is characterized by comprising: The GPS positioning module is built into the mobile signal receiver 402 and is used to identify and monitor the location of the storage tank in real time and transmit location information in real time. The status analysis module is used to receive the tank location information transmitted by the GPS positioning module, identify whether the tank is in a fixed position or a moving position, and switch the signal receiving mode accordingly. The data acquisition module is used to acquire and store the pressure data transmitted by the wireless pressure sensor 3 of the corresponding storage tank, and to analyze and process the data. The data transmission module is used to transmit the tank pressure data collected by the data acquisition module to the management platform or mobile network terminal; The early warning module receives the data results analyzed by the data acquisition module and issues an early warning signal when the pressure value or pressure change rate of the storage tank exceeds a set threshold.

[0023] The data acquisition module includes: a. A static monitoring unit is used to switch the fixed signal receiver 401 to receive pressure data collected by wireless pressure sensors 3 corresponding to multiple storage tanks based on the analysis results of the status analysis module. The static monitoring unit is used to collect and monitor pressure data when the storage tank is at a fixed point. The unit receives pressure data sent by all authorized wireless pressure sensors 3 in the area through the fixed signal receiver 401 in a polling or concurrent manner, and performs preliminary processing on the received pressure data, including data format conversion, timestamp marking and local data caching. When the network is connected, the batch data is uploaded to the central management platform. b. A dynamic monitoring unit is used to switch the mobile signal receiver 402 to receive pressure data collected by the wireless pressure sensor 3 of the corresponding storage tank based on the analysis results of the state analysis module. The dynamic monitoring unit is used to monitor the pressure when the storage tank is in a moving state. The unit obtains the pressure data emitted by the wireless pressure sensor 3 on the storage tank through the mobile signal receiver 402. The dynamic monitoring unit has edge computing capabilities and can monitor the tank pressure value and its changes in real time.

[0024] Upon receiving a warning signal, the early warning module activates the audible and visual alarm device on one side of the corresponding storage tank base to trigger an audible and visual alarm.

[0025] When storing the storage tank, a wireless pressure sensor 3 is installed at one end of the storage tank through a three-way pipe 2. The pressure gauge 1 is used to display the tank pressure data intuitively. The wireless pressure sensor 3 is used to monitor the tank pressure data in real time. At the same time, the storage status of the storage tank is identified through a GPS positioning module. When the GPS shows that the location of the storage tank is fixed, the data monitored by the wireless pressure sensor 3 on each storage tank is received through the fixed signal receiver 401, and the collected storage tank pressure data is transmitted to the management platform or mobile network terminal. The pressure threshold is set according to the storage medium of the storage tank. When the pressure value exceeds the threshold, an audible and visual alarm is triggered. When the GPS indicates that the storage tank has moved, the fixed signal receiver 401 indicates that the corresponding storage tank is offline. At this time, the mobile signal receiver 402 on the mobile storage tank starts to operate. The mobile signal receiver 402 receives the data monitored by the wireless pressure sensor 3 on the corresponding storage tank and transmits the collected storage tank pressure data to the management platform or mobile network terminal. At the same time, it analyzes the pressure fluctuation in a short period of time. Even if the absolute pressure value does not exceed the threshold, it can identify abnormal change trends such as sudden pressure rise or fall. Once the pressure value exceeds the threshold or the fluctuation rises / falls suddenly, it will also trigger an audible and visual alarm.

[0026] Example 2 Please see Figure 1 , Figure 2 and Figure 3 The difference from Example 1 is that in this example, the storage medium in the tank is ethylene oxide. Ethylene oxide is a flammable, explosive and toxic medical sterilization gas, which is usually stored in portable tanks and transported within or between hospitals. Its pressure stability is crucial for safety. When storing ethylene oxide, a three-way pipe 2 and a wireless pressure sensor 3 are installed at the vent valve of the storage tank. The wireless pressure sensor 3 uses low-power Bluetooth communication. At the same time, a fixed signal receiver 401 is installed in the gas storage room and operating room of the hospital, and a mobile signal receiver 402 is installed on the base of each storage tank trolley. The receiver has a built-in GPS and 4G communication module. When stored in a warehouse or operating room, the fixed receiver 401 continuously receives pressure data sent by the wireless pressure sensor 3 of each storage tank and uploads it to the hospital equipment management platform. When the caregiver pushes the storage tank to move, the GPS shows that the storage tank has moved, the fixed receiver 401 shows that the corresponding storage tank is offline, and the system automatically switches to the mobile monitoring mode. At this time, the mobile signal receiver 402 receives the pressure data and pressure fluctuation trend sent by the wireless pressure sensor 3 of the corresponding storage tank. If the system detects that the pressure continues to drop, it may indicate a leak. At this time, the audible and visual alarm on the trolley is immediately triggered.

[0027] Example 3 Please see Figure 1 , Figure 2 and Figure 3 The difference from Example 1 is that in this example, the storage medium in the storage tank is liquid chlorine raw material. A chemical plant uses multiple mobile liquid chlorine storage tanks to transfer liquid chlorine raw material between different workshops. Liquid chlorine is a highly toxic chemical, and its vapor pressure is greatly affected by temperature. Leakage or abnormal pressure can lead to serious safety accidents. A three-way pipe 2 is installed at the connection pipe between the pressure gauge 1 on the top of each liquid chlorine storage tank and the tank body, and an explosion-proof wireless pressure sensor 3 is installed on the branch pipe. The sensor is powered by an intrinsically safe battery and has a built-in Bluetooth communication module. Multiple fixed signal receivers 401 are installed at fixed locations such as the storage area, filling station and use workshop in the plant area, and a mobile signal receiver 402 with a built-in GPS module is installed at the base of each storage tank.

[0028] When the storage tank is located at a fixed point, the fixed signal receiver 401 receives wireless pressure data sent by the wireless pressure sensor 3 of the surrounding storage tanks in a polling manner and uploads it to the central control room. When the storage tank is moved by a forklift, the GPS identifies the tank's movement status. At this time, the fixed signal receiver 401 shows that the corresponding storage tank is offline and automatically switches to the mobile signal receiver 402 to receive data. The dynamic monitoring unit analyzes the pressure change trend in real time. Once a sharp increase in pressure is detected in a short period of time, which may be caused by exposure to sunlight or impact, the early warning module immediately triggers an audible and visual alarm and sends an alarm message to the safety officer's mobile phone through the data transmission module.

[0029] Through the above steps, the pressure value of the storage tank is monitored and displayed in real time by pressure gauge 1. The wireless pressure sensor 3 is installed at the connection pipe of the storage tank using a three-way pipe 2, thereby realizing the installation of the wireless pressure sensor 3 without modifying the storage tank structure. The wireless pressure sensor 3 is used to acquire the storage tank pressure data and transmit the data to the data receiving end. When the storage tank is stationary, the pressure signals transmitted by multiple wireless pressure sensors 3 are received by the fixed signal receiver 401. When the storage tank is moved, the fixed signal receiver 401 displays an offline status for the corresponding storage tank. At this time, the pressure signal transmitted by the wireless pressure sensor 3 for the corresponding storage tank is received by the mobile signal receiver 402. Thus, the operating status of the monitoring device can be flexibly switched according to the storage condition of the storage tank to ensure real-time monitoring of the storage tank pressure changes under various conditions, especially the storage tank pressure under moving conditions.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pressure monitoring device for a mobile tank comprising a pressure gauge (1), characterised in that: Also include a tee (2) and signal transmission unit, a tee (2) one end and the top of the tank is connected, tee (2) branch one end is provided with a wireless pressure sensor (3), signal transmission unit includes a fixed signal receiver (401) and mobile signal receiver (402), the fixed signal receiver (401) is provided with a plurality of groups, fixed signal receiver (401) is set in the filling, transfer and storage tank space of multiple fixed point, the mobile signal receiver (402) is set in the base of the tank.

2. A pressure monitoring device for a mobile storage tank as defined in claim 1, characterized in that: The other end of the tee (2) is provided with an inlet valve, an exhaust valve, a safety valve or a pressure gauge (1).

3. A pressure monitoring device for a mobile storage tank as defined in claim 1, characterized in that: The wireless pressure sensor (3) is powered by a battery and is provided with a Wi-Fi or Bluetooth wireless communication module.

4. A pressure monitoring device for a mobile storage tank as defined in claim 1, wherein: The fixed signal receiver (401) pre-stores the identity authentication information of all authorized wireless pressure sensors (3), including device name and password, and is provided with multiple wireless communication channels for receiving monitoring data transmitted by the wireless pressure sensor (3) in the fixed state of the tank.

5. A pressure monitoring device for a mobile storage tank as defined in claim 1, wherein: The mobile signal receiver (402) is used to receive the monitoring data transmitted by the wireless pressure sensor (3) in the mobile state of the corresponding tank.

6. A pressure monitoring system for a movable tank of the apparatus of any one of claims 1-5, characterized in that, It includes: A GPS positioning module built into the mobile signal receiver (402) is used to identify the placement position of the monitoring tank in real time and transmit the position information in real time; A state analysis module is used to receive the tank position information transmitted by the GPS positioning module, identify whether the tank is in a fixed point state or a mobile state, and switch the signal receiving mode accordingly; A data acquisition module is used to obtain, store and analyze the pressure data transmitted by the wireless pressure sensor (3) of the corresponding tank; A data transmission module is used to transmit the tank pressure data collected by the data acquisition module to a management platform or a mobile network terminal; An early warning module receives the data results analyzed by the data acquisition module and sends an early warning signal when the tank pressure value or pressure change rate exceeds the set threshold.

7. A pressure monitoring system for a mobile storage tank as defined in claim 6, wherein: The data acquisition module includes: a. Static monitoring unit, for switching the fixed signal receiver (401) to receive the pressure data collected by the wireless pressure sensor (3) of multiple tanks according to the analysis results of the state analysis module; b. Dynamic monitoring unit, for switching the mobile signal receiver (402) to receive the pressure data collected by the wireless pressure sensor (3) of the corresponding tank according to the analysis results of the state analysis module.

8. A pressure monitoring system for a mobile storage tank as defined in claim 7, wherein: The static monitoring unit is used to collect and monitor pressure data when the tank is in a fixed point position. This unit receives pressure data sent by all authorized wireless pressure sensors (3) in the area through the fixed signal receiver (401) in a polling or concurrent manner, and performs preliminary processing on the received pressure data, including data format conversion, time stamp marking and data local caching, and uploads batch data to the management platform when connected to the network.

9. A pressure monitoring system for a mobile storage tank as defined in claim 7, wherein: The dynamic monitoring unit is used for pressure monitoring when the storage tank is in a moving state. The unit acquires pressure data emitted by a wireless pressure sensor (3) on the storage tank through a mobile signal receiver (402). The dynamic monitoring unit is provided with a pressure change trend analysis algorithm, which is used for monitoring abnormal fluctuations of pressure in a short time.

10. A pressure monitoring system for a mobile storage tank as defined in claim 6, wherein: The early warning module activates an audible and light alarm device on one side of the corresponding storage tank seat to perform audible and light alarm after receiving an early warning signal.

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