Silo safety monitoring system based on distributed field bus
Through the distributed fieldbus system integrating the main control device and sensors, the timeliness and accuracy of silo safety monitoring is solved, and the effects of safety monitoring and cable saving are achieved.
Patent Information
- Application Number
- CN202422114601.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-29
AI Technical Summary
Traditional silo safety monitoring relies on manual inspection and single parameter monitoring, resulting in untimely monitoring and low accuracy, which cannot fully reflect the safety status of silo. The dispersed sensor layout leads to excessive cable use, unstable equipment signals, and inconvenient expansion.
A silo safety monitoring system based on a distributed field bus is adopted, including a main control device, a zone controller, a temperature controller, a detector controller, and multiple temperature monitors and gas detectors. Communication is carried out through a wireless bridge and a field bus to achieve timely and accurate collection and monitoring of sensor signals.
It realizes safety monitoring during coal storage in silo, improves timely accuracy, saves signal cable use, facilitates expansion, and reduces costs.
Smart Images
Figure CN223243663U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electronic monitoring, and in particular relates to a silo safety monitoring system based on a distributed field bus. Background Art
[0002] Silos are important facilities for storing bulk materials like coal, and their safety is directly related to material quality, storage efficiency, and personnel safety. Traditional silo safety monitoring methods often rely on manual inspections and single-parameter monitoring. This approach suffers from issues such as delayed monitoring, low accuracy, and an inability to fully reflect the silo's safety status. Furthermore, silos contain numerous sensors, such as CH4 detectors, CO detectors, smoke detectors, temperature sensors, and oxygen detectors, all of which are dispersed. Using traditional remote I / O cabinets to access signals results in excessive cabling, unstable device signals, and inconvenient expansion. Utility Model Content
[0003] The utility model provides a silo safety monitoring system based on a distributed field bus, which effectively solves the problem of real-time monitoring of the structural state of coal stored in the silo.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a silo safety monitoring system based on a distributed field bus, including a main control device, a zone controller, a temperature controller, a detector controller and multiple temperature monitors and gas detectors installed in the silo. The zone intelligent controller is connected to the main control device via a wireless bridge, and the zone controller communicates with the temperature controller and the detector controller via a field bus.
[0005] Preferably, the temperature monitor includes multiple temperature measuring cables and multiple temperature measuring rods, and temperature sensors are provided on the multiple temperature measuring cables and multiple temperature measuring rods to form temperature measuring points, which are electrically connected to the temperature controller.
[0006] Preferably, the temperature measuring cables are installed in a suspended manner in the silo, with a total of three cables, each with seven temperature measuring points. The temperature measuring rods are evenly arranged in four directions in the middle of the silo and three at intervals of 120° at the bottom of the silo, for a total of seven cables, and each with a temperature measuring point.
[0007] Preferably, there are five temperature controllers, one next to each temperature measuring cable, one in the middle of the silo, and one at the bottom of the silo, which are electrically connected to the temperature sensor.
[0008] Preferably, the temperature controller is provided with an SSPCU1508 acquisition module, and the temperature measurement signal is transmitted to the zone controller through the acquisition module.
[0009] Preferably, the gas detector is a plurality of integrated monitoring mechanisms installed in the silo, including a combination of smoke sensors, carbon monoxide sensors, methane sensors and oxygen sensors. The number of integrated monitoring mechanisms can be adjusted, and each integrated monitoring mechanism is electrically connected to a detector controller, which is an SSPCU-2316 controller and is configured around each monitoring mechanism through a distributed field bus.
[0010] Preferably, the main control device includes a host computer with a display screen, which displays the uploaded monitoring data in real time.
[0011] Beneficial effects of the utility model:
[0012] The utility model adopts the above technical solution to collect the signals of each sensor in a timely and accurate manner, effectively monitor the operational safety issues during the coal storage process of the silo, and specifically ensure the safety of the silo and personal equipment; at the same time, it saves the use of signal cables, facilitates point-to-point installation and expansion, and saves money. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art and the beneficial effects of the present invention, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other structures can be obtained based on the structures shown in these drawings without paying any creative work.
[0014] Figure 1 This is a schematic diagram of the network rubbing structure of the utility model.
[0015] Figure 2 Schematic diagram of the temperature measurement point monitoring structure.
[0016] Figure 3 Schematic diagram of the temperature monitoring area structure.
[0017] Figure 4 Schematic diagram of the gas monitoring area structure. DETAILED DESCRIPTION
[0018] Specific embodiments of the present utility model:
[0019] like Figure 1 As shown, the distributed field bus-based silo 1 safety monitoring system of this embodiment includes a main control device, a zone controller, a temperature controller, a detector controller, and multiple temperature monitors and gas detectors installed in the silo. The zone intelligent controller is connected to the main control device via a wireless bridge, and the zone controller communicates with the temperature controller and the detector controller via the field bus.
[0020] See also Figure 2 、 Figure 3 The temperature monitor includes multiple temperature measuring cables 2 and multiple temperature measuring rods 3. Temperature sensors are set on the multiple temperature measuring cables and multiple temperature measuring rods to form temperature measuring points, and the temperature measuring points are electrically connected to the temperature controller.
[0021] In some specific embodiments, the temperature measuring cables are installed in a suspended manner in the silo, with a total of three cables, each with seven temperature measuring points. The temperature measuring rods are evenly arranged in four directions in the middle of the silo and three at intervals of 120° at the bottom of the silo, for a total of seven cables, and each with a temperature measuring point.
[0022] In some specific embodiments, there are five temperature controllers 4, one next to each temperature measuring cable, one in the middle of the silo, and one at the bottom of the silo, which are electrically connected to the temperature sensor.
[0023] In some specific embodiments, the temperature controller is provided with an SSPCU1508 acquisition module, and the temperature measurement signal is transmitted to the zone controller 5 through the acquisition module.
[0024] See also Figure 4 The gas detectors are multiple sets of comprehensive monitoring mechanisms installed in the silo, including smoke sensors, carbon monoxide sensors, methane sensors and oxygen sensors. The number of comprehensive monitoring mechanisms can be adjusted. Each set of comprehensive monitoring mechanisms is electrically connected to a detector controller, which is an SSPCU-2316 controller and is configured around each set of monitoring mechanisms through a distributed field bus.
[0025] In some specific embodiments, the main control device includes a host computer with a display screen, which displays the uploaded monitoring data in real time.
[0026] The specific application example of a coal storage facility in a power plant silo is as follows:
[0027] (1) Equipment allocation:
[0028] Each silo uses a regional network intelligent controller, mounted near the silo's roof bridge. Three temperature collection cables, each with seven temperature measurement points, enter the silo from the top. Each temperature measurement cable is equipped with an SSPCU1508 intelligent controller for data collection. Four temperature measuring rods in the middle of the silo and three at the bottom are each equipped with an SSPCU1508 intelligent controller. Coal temperature data collected by the temperature measuring rods is uploaded to the regional controller via an industrial bus or wirelessly. The regional network controller ultimately transmits the coal temperature data to the master station in the centralized control room.
[0029] Each silo is equipped with a smoke alarm, oxygen detector, CH4 detector, and C0 detector. The four sensor devices form a set, and each silo is equipped with three sets. A SSPCU2316 intelligent controller is configured next to the three sets of sensor devices.
[0030] (2) Temperature detection equipment distribution:
[0031] The silo has a diameter of 6 meters, a wall height of 20 meters, and a cone base height of 8 meters. The temperature measurement cable is 15 meters long, with a PT100 thermal resistor measuring point every 2 meters. For a total of 7 temperature measurement points per silo, one cable has 3 temperature measurement cables. Temperature measurement rods are installed in four directions in the center of the silo, and at 120-degree intervals at the bottom of the silo, for a total of 7 temperature measurement rods, each with a temperature measurement point, for a total of 28 temperature measurement points.
[0032] An SSPCU1508 intelligent controller is installed next to each temperature measuring cable, an SSPCU1508 intelligent controller is installed in the middle, and an SSPCU1508 intelligent controller is installed at the bottom. Each temperature measuring rod is no more than 10 meters away from the controller, and each temperature measuring cable is 1-2 meters away from the intelligent controller, which greatly saves the length of the signal cable. All temperature measurement signals are then transmitted to the regional network controller through the acquisition module SSPCU1508 intelligent controller.
[0033] (3) Real-time monitoring of combustible gas
[0034] Gases that need to be measured within silos primarily include combustible gases like methane and carbon monoxide, oxygen as a combustion aid, and smoke from existing combustion. These gases can easily cause internal spontaneous combustion, a major fire hazard. The silo safety monitoring system primarily uses combustible gas detectors installed throughout the silo to collect hazardous gas data and ensure safe and stable storage.
[0035] Depending on the size of the silo, a number of combined real-time flue gas monitoring systems are installed. Three systems are installed, each including a combustible gas probe, a smoke probe, a carbon monoxide probe, and an oxygen monitor, evenly distributed throughout the silo. A single control area may contain multiple combined real-time flue gas monitoring systems. Each combined flue gas monitoring system is accompanied by an SSPCU2316 local measurement and control device. This device collects the 4-20mA / 0-10V standard signals from the combustible gas probe, smoke probe, carbon monoxide probe, and oxygen monitor, converts them into digital signals via the fieldbus, and uploads them to the area controller. The area controller ultimately transmits this data to the integrated control system for the closed and control rooms, where it is displayed in real time on the host computer. The real-time combustible gas monitoring data also connects related equipment. When the concentration of the detected hazardous gas is too high, the relevant equipment is activated to accelerate the air circulation within the silo and prevent the combustible gas from exploding.
[0036] Gas detectors are installed in a relatively scattered manner and without a bridge. Through the distributed field bus, a set of SSPCU-2316 intelligent controllers is configured around each set of monitors. Only a 20-meter pipeline is needed to carry the communication cable. Each signal cable only needs 2-3 meters, which greatly saves the length of the signal cable and saves money.
[0037] This embodiment adopts the above technical solution to collect the signals of each sensor in a timely and accurate manner, effectively monitor the operational safety issues during the coal storage process of the silo, and specifically ensure the safety of the silo and personal equipment; at the same time, it saves the use of signal cables, facilitates point-to-point installation and expansion, and saves money.
[0038] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A silo safety monitoring system based on distributed fieldbus, characterized in that: It includes a main control device, a zone controller, a temperature controller, a detector controller, and multiple temperature monitors and gas detectors installed in the silo. The zone controller is connected to the main control device via a wireless bridge, and the zone controller communicates with the temperature controller and the detector controller via a field bus.
2. The silo safety monitoring system based on distributed field bus according to claim 1 is characterized in that: The temperature monitor includes a plurality of temperature measuring cables and a plurality of temperature measuring rods. Temperature sensors are arranged on the plurality of temperature measuring cables and the plurality of temperature measuring rods to form temperature measuring points, and the temperature measuring points are electrically connected to the temperature controller.
3. The silo safety monitoring system based on distributed field bus according to claim 2 is characterized in that: The temperature measuring cables are installed in a suspended manner in the silo, with a total of three cables, each with seven temperature measuring points. The temperature measuring rods are evenly arranged in four directions in the middle of the silo and three at intervals of 120° at the bottom of the silo, for a total of seven cables, and each with a temperature measuring point.
4. The silo safety monitoring system based on distributed field bus according to claim 3 is characterized in that: There are five temperature controllers, one next to each temperature measuring cable, one in the middle of the silo, and one at the bottom of the silo, which are electrically connected to the temperature sensor.
5. The silo safety monitoring system based on distributed field bus according to claim 4 is characterized in that: The temperature controller is provided with an SSPCU1508 acquisition module, and the temperature measurement signal is transmitted to the regional controller through the acquisition module.
6. The silo safety monitoring system based on distributed field bus according to claim 5 is characterized in that: The gas detectors are multiple sets of comprehensive monitoring mechanisms installed in the silo, including a combination of smoke sensors, carbon monoxide sensors, methane sensors and oxygen sensors. The number of comprehensive monitoring mechanisms can be adjusted, and each set of comprehensive monitoring mechanisms is electrically connected to a detector controller, which is an SSPCU-2316 controller and is configured around each set of monitoring mechanisms through a distributed field bus.
7. The silo safety monitoring system based on distributed field bus according to claim 6 is characterized in that: The main control device includes a host computer with a display screen.