Remote supervisory system for wireless liquefied gas station equipment

Abstract

Compared with a traditional wired transmission mode and a wireless scheme, the wireless liquefied gas station equipment remote supervision system provided by the utility model has remarkable beneficial effects, and the effects are mainly reflected in the following aspects: laying of a large number of wires and complicated manual wiring are not needed, so that the initial investment cost is greatly reduced. The wireless monitoring system is not limited by geographic positions and distances, and can be quickly deployed in various areas of dangerous chemicals such as liquefied gas needing to be monitored. The wireless monitoring system is easy to maintain, easy-to-damage parts such as wires and joints do not need to be checked frequently, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of signal transmission control in safe production sites, in particular to a wireless liquefied gas station equipment remote monitoring system. Background Art

[0002] Safety monitoring is crucial during the storage and transportation of hazardous chemicals like liquefied petroleum gas (LPG) in production facilities, such as liquefied petroleum gas (LPG) stations and chemical plants. However, because liquefied gas storage areas are often located far from monitoring rooms, traditional wired transmission methods present numerous inconveniences. First, the cost of wiring is high, requiring extensive wiring and labor. Second, trenching and wiring are not only time-consuming and labor-intensive, but can also damage underground pipelines and facilities. Finally, wired transmission systems are difficult to maintain, and troubleshooting and repairing any failures requires significant time and effort. Utility Model Content

[0003] The purpose of the utility model is to provide a wireless liquefied gas station equipment remote monitoring system, which can overcome the shortcomings and deficiencies in the prior art.

[0004] One embodiment of the utility model provides a wireless liquefied gas station equipment remote monitoring system. The monitoring host is connected to the storage tank area, filling area, unloading area, pump area, empty bottle area and fire protection area through wireless signals. The monitoring host collects sensor signals in each area. When the signal exceeds the safety range, the relevant equipment is immediately disconnected and the alarm device and exhaust fan are activated.

[0005] The storage tank area includes several storage tanks and several concentration sensors. The concentration sensors are set around the storage tanks. Each storage tank includes a temperature sensor, a pressure sensor and a liquid level sensor.

[0006] The filling area includes several filling machines and several concentration sensors. The concentration sensors are arranged around the filling machines. Each filling machine includes an exhaust fan, a pressure sensor, a power switch and an emergency stop switch.

[0007] The unloading area includes several unloading equipment and several concentration sensors. The concentration sensors are arranged around the unloading equipment. The unloading equipment includes unloading valves, pressure sensors, exhaust fans and emergency stop switches.

[0008] The pump area includes several compressors, several hydrocarbon pumps, emergency shut-off valves and several concentration sensors;

[0009] The empty bottle area includes several concentration sensors;

[0010] The fire protection area includes a fire water pool, which includes fire valves, pressure sensors and liquid level sensors.

[0011] Furthermore, the storage tank area, filling area, unloading area, machine pump area, empty bottle area and fire protection area are all provided with signal acquisition boards, and each signal acquisition board is provided with a different signal address.

[0012] Furthermore, the filling area, unloading area, machine pump area and fire protection area are all provided with control panels, and each control panel is provided with a different signal address.

[0013] Furthermore, the signal acquisition board of the tank area collects signals from the temperature sensor, pressure sensor, liquid level sensor and concentration sensor of the tank area and transmits the signals to the monitoring host through the antenna.

[0014] Furthermore, the signal acquisition board in the filling area collects signals from the temperature sensor, pressure sensor, liquid level sensor and concentration sensor in the filling area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control panel in the filling area through the antenna to control the start and stop of the exhaust fan, alarm device, power switch and emergency stop switch.

[0015] Furthermore, the signal acquisition board in the unloading area collects signals from the unloading valve, pressure sensor, exhaust fan, emergency stop switch and concentration sensor in the unloading area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control panel in the unloading area through the antenna to control the start and stop of the unloading valve, alarm device, exhaust fan and emergency stop switch.

[0016] Furthermore, the signal acquisition board in the pump area collects signals from the compressor, hydrocarbon pump, emergency shut-off valve and several concentration sensors in the pump area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control board in the pump area through the antenna to control the start and stop of the compressor, hydrocarbon pump, alarm device and emergency shut-off valve.

[0017] Furthermore, the signal acquisition board in the empty bottle area collects the signal of the concentration sensor in the empty bottle area and transmits the signal to the monitoring host through the antenna.

[0018] Furthermore, the signal acquisition board in the fire protection area collects signals from the fire valves, pressure sensors and liquid level sensors in the fire protection area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control panel in the machine pump area through the antenna to control the start and stop of the fire valves and alarm devices.

[0019] Furthermore, the signal acquisition control board is provided with a high-performance processor, which receives sensor signals through 11-channel optoelectronic isolation analog signal acquisition circuits, receives input signals through 6-channel optoelectronic isolation switch signal acquisition circuits, receives input signals and sends output signals through optoelectronic isolation serial port 232 to 485 communication circuits, connects to the host through a wireless transmission module, sends output signals through 7-channel optoelectronic isolation control signal output circuits, and is connected to a large-capacity data storage circuit and a precision clock circuit.

[0020] Furthermore, the signal acquisition board is provided with a high-performance processor, which receives and collects signals through a 22-channel optoelectronically isolated analog signal acquisition circuit, receives input signals and sends output signals through an optoelectronically isolated serial port 232 to 485 communication circuit acquisition circuit, and is connected to the host through a wireless transmission module. The high-performance processor is connected to a dip switch to select a module address, a large-capacity data storage circuit, and a precision clock circuit.

[0021] Compared with traditional wired transmission methods, wireless solutions bring significant benefits, which are mainly reflected in the following aspects:

[0022] Significant cost-effectiveness:

[0023] There is no need to lay a large amount of wires and carry out complicated manual wiring, which greatly reduces the initial investment cost.

[0024] It reduces the damage to underground pipelines and facilities that may be caused by trench excavation, and further saves repair and maintenance costs.

[0025] Flexible and convenient installation:

[0026] The wireless monitoring system is not restricted by geographical location and distance and can be quickly deployed in various areas where hazardous chemicals such as liquefied gas need to be monitored.

[0027] The installation process is simple and does not require tedious wiring work, reducing construction period and labor costs.

[0028] Easy and efficient maintenance:

[0029] The wireless monitoring system is easy to maintain and does not require frequent inspection of wearing parts such as wires and connectors, thus reducing maintenance costs.

[0030] Once a failure occurs, the problem can be quickly located through remote monitoring and diagnosis, reducing the time and manpower required for troubleshooting and repair.

[0031] Strong scalability:

[0032] Wireless monitoring systems can easily expand the monitoring range and increase monitoring points to meet changing monitoring needs.

[0033] It can be seamlessly integrated with other wireless devices and systems to achieve a higher level of security management and control.

[0034] Improved safety performance:

[0035] The wireless monitoring system can transmit monitoring data in real time, ensuring that monitoring personnel can promptly understand the storage and transportation conditions of hazardous chemicals.

[0036] With the help of advanced wireless technology and algorithms, rapid response and handling of safety incidents such as hazardous chemical leaks can be achieved, reducing safety risks.

[0037] Highly adaptable:

[0038] The wireless monitoring system is not restricted by terrain and environment and can operate stably in various complex environments.

[0039] For areas that are difficult to wire or maintain, wireless monitoring systems provide a more flexible and reliable solution.

[0040] In summary, this solution has demonstrated significant beneficial effects in safe production sites. It not only improves the efficiency and reliability of the monitoring system, but also reduces costs and maintenance difficulties, providing strong guarantees for the safe production of enterprises.

[0041] In order to more clearly understand the present invention, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a diagram showing an implementation scheme of a wireless liquefied gas station equipment remote monitoring system according to an embodiment of the present invention;

[0043] Figure 2 This is an implementation diagram of a signal acquisition control board according to one embodiment of the present invention;

[0044] Figure 3 This is an implementation diagram of a signal acquisition board according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] See also Figures 1 to 3 One embodiment of the present invention provides a wireless remote monitoring system for liquefied gas station equipment. A monitoring host is located in a monitoring room and is connected to the storage tank area, filling area, unloading area, pump area, empty bottle area, and fire protection area via wireless signals. Specifically, the areas can be divided according to actual circumstances. The monitoring host collects sensor signals from each area. When the signal exceeds a safe range, it immediately shuts down the relevant equipment and activates alarms and exhaust fans.

[0047] The tank area is used to place various storage tanks containing liquefied gas. The tank area includes several storage tanks and several concentration sensors. The concentration sensors are set around the storage tanks. Each storage tank includes a temperature sensor, a pressure sensor, and a liquid level sensor. The storage tank area, the filling area, the unloading area, the pump area, the empty bottle area, and the fire protection area are all equipped with signal acquisition boards, and each signal acquisition board is set with a different signal address. The signal acquisition board in the tank area collects signals from the temperature sensor, pressure sensor, liquid level sensor, and concentration sensor in the tank area and transmits the signals to the monitoring host via the antenna. The monitoring host can monitor the specific conditions of each storage tank in the tank area at all times. The concentration sensor is mainly used to detect whether there is a leak and can issue an alarm when a leak occurs.

[0048] The filling area is used for filling liquefied gas. The filling area includes several filling machines and several concentration sensors. The concentration sensors are installed around the filling machines. Each filling machine includes an exhaust fan, pressure sensor, power switch and emergency stop switch. The filling area, unloading area, pump area and fire protection area are all equipped with control panels, and each control panel is set with a different signal address. The signal acquisition board in the filling area collects signals from the temperature sensor, pressure sensor, liquid level sensor and concentration sensor in the filling area and transmits the signals to the monitoring host via an antenna. The monitoring host transmits the signals to the control panel in the filling area via the antenna to control the start and stop of the exhaust fan, alarm device, power switch and emergency stop switch. The monitoring room can wirelessly control unused filling machines to perform filling operations according to actual conditions, control their start and stop, and control the operation and shutdown of the exhaust fan, thereby ensuring the safety of the filling area.

[0049] The unloading area is the primary location for receiving and storing liquefied gas at a liquefied gas station. After being transported to the station by tank truck, liquefied gas is unloaded in the unloading area and subsequently stored in corresponding tanks for subsequent production, sales, or use. The unloading area includes several unloading devices and several concentration sensors. The concentration sensors are located around the unloading equipment, which includes unloading valves, pressure sensors, exhaust fans, and emergency stop switches. The signal acquisition board in the unloading area collects signals from the unloading valves, pressure sensors, exhaust fans, emergency stop switches, and concentration sensors in the unloading area and transmits these signals via an antenna to a monitoring host. The monitoring host then transmits these signals via an antenna to a control panel in the unloading area to control the start and stop of the unloading valves, alarm devices, exhaust fans, and emergency stop switches.

[0050] The liquefied gas pumps in the pump area are core equipment for liquefied gas transmission and pressurization. They utilize physical principles to compress the liquefied gas by reducing the pump chamber volume, thereby enabling the transfer of liquefied gas from the storage tank to other areas or equipment. The pump area includes several compressors, hydrocarbon pumps, emergency shut-off valves, and concentration sensors. The signal acquisition board in the pump area collects signals from the compressors, hydrocarbon pumps, emergency shut-off valves, and concentration sensors and transmits these signals via antennas to a monitoring host. The monitoring host then transmits these signals via antennas to the pump area's control board, which controls the start and stop of the compressors, hydrocarbon pumps, alarms, and emergency shut-off valves.

[0051] The empty bottle area is used to temporarily store empty bottles and contains several concentration sensors. A signal acquisition board in this area collects signals from these sensors and transmits them via antennas to the monitoring host. However, the empty bottle area still presents a risk of gas leakage, so concentration sensors are also required for monitoring.

[0052] The fire protection area includes a fire water tank, which is equipped with fire valves, pressure sensors, and liquid level sensors. The signal acquisition board in the fire protection area collects signals from these valves, pressure sensors, and liquid level sensors and transmits them via an antenna to a monitoring host. The monitoring host then transmits these signals to the control board in the pump area, which activates and deactivates the fire valves and alarms. The monitoring host needs to know the status of the fire water tank to ensure sufficient firefighting materials are available in the event of an emergency.

[0053] Specifically, the signal acquisition control board is equipped with a high-performance processor, which receives sensor signals via 11 optoelectronically isolated analog signal acquisition circuits. It can monitor data such as the temperature, pressure, liquid level of multiple storage tanks, multiple gas leakage concentrations, ambient temperature, fire pool liquid level, pipeline pressure, pipeline temperature, BOG pressure, temperature after pressure regulation, pressure before pressure regulation, and pressure after pressure regulation. The high-performance processor receives input signals via six optoelectronically isolated switch signal acquisition circuits, including those for the electronic scale power supply, pump area fan, water pump, hydrocarbon pump, compressor, tank valves, filling area fan, unloading valves, and the overall audible and visual alarm, unloading audible and visual alarm, pump area audible and visual alarm, and filling area audible and visual alarm. The high-performance processor receives input signals and transmits output signals such as gas leakage concentration, accumulated flow rate, and instantaneous flow rate via an optoelectronically isolated serial 232-to-485 communication circuit. The high-performance processor is connected to the host computer via a wireless transmission module and sends output signals through seven optoelectronically isolated control signal output circuits, such as the electronic scale power supply, pump area fan, water pump, hydrocarbon pump, compressor, tank valve, filling area fan, unloading valve, main sound and light alarm, unloading sound and light alarm, pump area sound and light alarm, and filling area sound and light alarm. The high-performance processor is connected to a large-capacity data storage circuit and a precision clock circuit.

[0054] Specifically, the signal acquisition board is equipped with a high-performance processor. This processor receives signals such as the temperature, pressure, and liquid level of multiple storage tanks, multiple gas leakage concentrations, ambient temperature, fire pool liquid level, pipeline pressure, pipeline temperature, BOG pressure, post-surge temperature, pre-surge pressure, and post-surge pressure via a 22-channel opto-isolated analog signal acquisition circuit. The high-performance processor receives input signals and transmits output signals such as gas leakage concentration, accumulated flow rate, and instantaneous flow rate via an opto-isolated serial 232-to-485 communication acquisition circuit. The high-performance processor is connected to the host computer via a wireless transmission module and is connected to a DIP switch for module address selection, a large-capacity data storage circuit, and a precision clock circuit.

[0055] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wireless liquefied gas station equipment remote monitoring system, characterized by: The monitoring host is connected to the tank area, filling area, unloading area, pump area, empty bottle area and fire protection area through wireless signals. The monitoring host collects sensor signals in each area. When the signal exceeds the safety range, it immediately shuts off the relevant equipment and activates the alarm device and exhaust fan. The storage tank area includes several storage tanks and several concentration sensors. The concentration sensors are set around the storage tanks. Each storage tank includes a temperature sensor, a pressure sensor and a liquid level sensor. The filling area includes several filling machines and several concentration sensors. The concentration sensors are arranged around the filling machines. Each filling machine includes an exhaust fan, a pressure sensor, a power switch and an emergency stop switch. The unloading area includes several unloading equipment and several concentration sensors. The concentration sensors are arranged around the unloading equipment. The unloading equipment includes unloading valves, pressure sensors, exhaust fans and emergency stop switches. The pump area includes several compressors, several hydrocarbon pumps, emergency shut-off valves and several concentration sensors; The empty bottle area includes several concentration sensors; The fire protection area includes a fire water pool, which includes fire valves, pressure sensors and liquid level sensors.

2. The wireless liquefied gas station equipment remote monitoring system according to claim 1 is characterized in that: The storage tank area, filling area, unloading area, machine pump area, empty bottle area and fire protection area are all equipped with signal acquisition boards, and each signal acquisition board is set with a different signal address.

3. The wireless liquefied gas station equipment remote monitoring system according to claim 2 is characterized by: The filling area, unloading area, machine pump area and fire protection area are all equipped with control panels, and each control panel is set with a different signal address.

4. The wireless liquefied gas station equipment remote monitoring system according to claim 3 is characterized by: The signal acquisition board in the tank area collects signals from the temperature sensor, pressure sensor, liquid level sensor and concentration sensor in the tank area and transmits the signals to the monitoring host through the antenna.

5. The wireless liquefied gas station equipment remote monitoring system according to claim 4 is characterized in that: The signal acquisition board in the filling area collects signals from the temperature sensor, pressure sensor, liquid level sensor and concentration sensor in the filling area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control panel in the filling area through the antenna to control the start and stop of the exhaust fan, alarm device, power switch and emergency stop switch.

6. The wireless liquefied gas station equipment remote monitoring system according to claim 5 is characterized in that: The signal acquisition board in the unloading area collects the signals of the unloading valve status, pipeline pressure, exhaust fan status, emergency stop switch status and concentration sensor in the unloading area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control panel in the unloading area through the antenna to control the start and stop of the unloading valve, alarm device, exhaust fan and emergency stop switch.

7. The wireless liquefied gas station equipment remote monitoring system according to claim 6 is characterized in that: The signal acquisition board in the pump area collects signals from the compressor, hydrocarbon pump, emergency shut-off valve and several concentration sensors in the pump area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits the signals to the control board in the pump area through the antenna to control the start and stop of the compressor, hydrocarbon pump, alarm device and emergency shut-off valve.

8. The wireless liquefied gas station equipment remote monitoring system according to claim 7 is characterized in that: The signal acquisition board in the empty bottle area collects signals from the concentration sensor in the empty bottle area and transmits the signals to the monitoring host through the antenna; the signal acquisition board in the fire protection area collects signals from the fire valves, pressure sensors and liquid level sensors in the fire protection area and transmits the signals to the monitoring host through the antenna. The monitoring host transmits signals to the control panel in the machine pump area through the antenna to control the start and stop of the fire valves and alarm devices.

9. The wireless liquefied gas station equipment remote monitoring system according to claim 8, characterized in that: The signal acquisition control board is equipped with a high-performance processor. The high-performance processor receives sensor signals through 11-channel optoelectronic isolation analog signal acquisition circuits. The high-performance processor receives input signals through 6-channel optoelectronic isolation switch signal acquisition circuits. The high-performance processor receives input signals and sends output signals through the optoelectronic isolation serial port 232 to 485 communication circuit. The high-performance processor is connected to the host through a wireless transmission module. The high-performance processor sends output signals through 7-channel optoelectronic isolation control signal output circuits. The high-performance processor is connected to a large-capacity data storage circuit and a precision clock circuit.

10. The wireless liquefied gas station equipment remote monitoring system according to claim 8, characterized in that: The signal acquisition board is equipped with a high-performance processor, which receives and collects signals through a 22-channel optoelectronically isolated analog signal acquisition circuit. The high-performance processor receives input signals and sends output signals through an optoelectronically isolated serial port 232 to 485 communication circuit acquisition circuit. The high-performance processor is connected to the host through a wireless transmission module. The high-performance processor is connected to a dip switch to select the module address, a large-capacity data storage circuit and a precision clock circuit.

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