CN113375724A - Heat supply network state monitoring system for gas thermal power plant based on multiple topological structures - Google Patents
Heat supply network state monitoring system for gas thermal power plant based on multiple topological structures Download PDFInfo
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Abstract
The invention relates to a heat supply network state monitoring technology, in particular to a heat supply network state monitoring system for a gas thermal power plant based on various topological structures. The invention solves the problem that the existing heat supply network state monitoring system lacks a reasonable network topology structure and a quick and efficient transmission medium. A heat supply network state monitoring system for a gas thermal power plant based on multiple topological structures comprises a first acquisition unit, a second acquisition unit, a third acquisition unit, a first rear-end wireless access device, a second rear-end wireless access device, a first PC (personal computer), a second PC, a first storage server, a second storage server, a microwave channel and an FC (fiber channel) bus; the first acquisition unit comprises a water supply flow sensor, a water supply pressure sensor, a water supply temperature sensor, a first signal conditioner, a second signal conditioner, a first front end wireless access device, a first RS232 bus and a first HART bus. The invention is suitable for monitoring the state of the heat supply network.
Description
Technical Field
The invention relates to a heat supply network state monitoring technology, in particular to a heat supply network state monitoring system for a gas thermal power plant based on various topological structures.
Background
The heat supply network of a gas thermal power plant is a very important production system. By monitoring the state of the heat supply network of the gas-fired thermal power plant, the operation state of the heat supply network can be mastered in time, and the safe and stable operation of the heat supply network is ensured. At present, the state monitoring of the heat supply network is mainly realized by relying on a heat supply network state monitoring system. Under the prior art condition, the heat supply network state monitoring system has the following problems due to the limit of the structure thereof: the existing heat supply network state monitoring system generally lacks a reasonable network topology structure and a quick and efficient transmission medium, so that the problems of unstable operation and poor reliability generally exist, and the stability, reliability and real-time performance of the heat supply network state monitoring are directly influenced. Therefore, a heat supply network state monitoring system for a gas thermal power plant based on various topological structures is needed to be invented, so that the problem that the existing heat supply network state monitoring system is lack of a reasonable network topological structure and a quick and efficient transmission medium is solved.
Disclosure of Invention
The invention provides a heat supply network state monitoring system for a gas thermal power plant based on various topological structures, which aims to solve the problem that the existing heat supply network state monitoring system is lack of a reasonable network topological structure and a quick and efficient transmission medium.
The invention is realized by adopting the following technical scheme:
a heat supply network state monitoring system for a gas thermal power plant based on multiple topological structures comprises a first acquisition unit, a second acquisition unit, a third acquisition unit, a first rear-end wireless access device, a second rear-end wireless access device, a first PC (personal computer), a second PC, a first storage server, a second storage server, a microwave channel and an FC (fiber channel) bus;
the first acquisition unit comprises a water supply flow sensor, a water supply pressure sensor, a water supply temperature sensor, a first signal conditioner, a second signal conditioner, a first front-end wireless access device, a first RS232 bus and a first HART bus; the water supply flow sensor, the water supply pressure sensor, the water supply temperature sensor, the first signal conditioner and the second signal conditioner are all connected with the first RS232 bus, and the water supply flow sensor, the water supply pressure sensor, the water supply temperature sensor, the first signal conditioner, the second signal conditioner and the first RS232 bus form a bus type topological structure together; the first signal conditioner, the second signal conditioner and the first front-end wireless access device are all connected with the first HART bus, and the first signal conditioner, the second signal conditioner, the first front-end wireless access device and the first HART bus form a bus-type topological structure together;
the second acquisition unit comprises a backwater flow sensor, a backwater pressure sensor, a backwater temperature sensor, a third signal conditioner, a fourth signal conditioner, a second front-end wireless access device, a second RS232 bus and a second HART bus; the backwater flow sensor, the backwater pressure sensor, the backwater temperature sensor, the third signal conditioner and the fourth signal conditioner are all connected with the second RS232 bus, and the backwater flow sensor, the backwater pressure sensor, the backwater temperature sensor, the third signal conditioner, the fourth signal conditioner and the second RS232 bus form a bus type topological structure; the third signal conditioner, the fourth signal conditioner and the second front-end wireless access device are all connected with the second HART bus, and the third signal conditioner, the fourth signal conditioner, the second front-end wireless access device and the second HART bus form a bus type topological structure together;
the third acquisition unit comprises a water supplementing flow sensor, a differential pressure sensor, an air inlet temperature sensor, an air inlet pressure sensor, a fifth signal conditioner, a sixth signal conditioner, a third front-end wireless access device, a third RS232 bus and a third HART bus; the water supplementing flow sensor, the differential pressure sensor, the air inlet temperature sensor, the air inlet pressure sensor, the fifth signal conditioner and the sixth signal conditioner are all connected with a third RS232 bus, and the water supplementing flow sensor, the differential pressure sensor, the air inlet temperature sensor, the air inlet pressure sensor, the fifth signal conditioner, the sixth signal conditioner and the third RS232 bus form a bus type topological structure; the fifth signal conditioner, the sixth signal conditioner and the third front-end wireless access device are all connected with the third HART bus, and the fifth signal conditioner, the sixth signal conditioner, the third front-end wireless access device and the third HART bus form a bus-type topological structure together;
the first rear-end wireless access device, the first front-end wireless access device, the second front-end wireless access device, the third front-end wireless access device and the second rear-end wireless access device are sequentially and wirelessly connected in series through microwave channels to form a daisy chain topology structure; the first rear-end wireless access device, the second rear-end wireless access device, the first PC, the second PC, the first storage server and the second storage server are all connected with the FC bus, and the first rear-end wireless access device, the second rear-end wireless access device, the first PC, the second PC, the first storage server, the second storage server and the FC bus form a bus type topological structure together.
The specific working process is as follows: the water supply flow sensor collects water supply instantaneous flow information and water supply average flow speed information of the heat supply network in real time and sends the collected water supply instantaneous flow information and the collected water supply average flow speed information to the first RS232 bus in real time. The water supply pressure sensor collects water supply pressure information of the heat supply network in real time and sends the collected water supply pressure information to the first RS232 bus in real time. The water supply temperature sensor collects water supply temperature information of the heat supply network in real time and sends the collected water supply temperature information to the first RS232 bus in real time. The first signal conditioner acquires various information (water supply instantaneous flow information, water supply average flow rate information, water supply pressure information and water supply temperature information) in real time by accessing the first RS232 bus, conditions the acquired various information in real time, and then sends the conditioned various information to the first HART bus in real time. The first front-end wireless access device acquires various information in real time by accessing the first HART bus. The backwater flow sensor collects the backwater instantaneous flow information and the backwater average flow velocity information of the heat supply network in real time, and sends the collected backwater instantaneous flow information and the backwater average flow velocity information to the second RS232 bus in real time. And the backwater pressure sensor collects backwater pressure information of the heat supply network in real time and sends the collected backwater pressure information to the second RS232 bus in real time. The backwater temperature sensor collects backwater temperature information of the heat supply network in real time and sends the collected backwater temperature information to the second RS232 bus in real time. The third signal conditioner acquires various information (return water instantaneous flow information, return water average flow rate information, return water pressure information and return water temperature information) in real time by accessing the second RS232 bus, conditions the acquired various information in real time, and then sends the conditioned various information to the second HART bus in real time. The second front-end wireless access device acquires various information in real time by accessing the second HART bus. And the water supplementing flow sensor collects water supplementing flow information of the heat supply network in real time and sends the collected water supplementing flow information to the third RS232 bus in real time. And the differential pressure sensor acquires the differential pressure information of the circulating water return filter screen of the heat supply network in real time and sends the acquired differential pressure information of the circulating water return filter screen to the third RS232 bus in real time. The air inlet temperature sensor collects air inlet temperature information of a steam-water heater main pipe of the heat supply network in real time and sends the collected air inlet temperature information of the steam-water heater main pipe to the third RS232 bus in real time. And the air inlet pressure sensor acquires air inlet pressure information of a steam-water heater main pipe of the heat supply network in real time and sends the acquired air inlet pressure information of the steam-water heater main pipe to the third RS232 bus in real time. The fifth signal conditioner acquires various information (water replenishing flow information, circulating water return filter screen differential pressure information, steam-water heater main pipe air inlet temperature information and steam-water heater main pipe air inlet pressure information) in real time by accessing the third RS232 bus, conditions the acquired various information in real time, and then sends the conditioned various information to the third HART bus in real time. The third front-end wireless access device acquires various information in real time by accessing the third HART bus. The first front-end wireless access device, the second front-end wireless access device and the third front-end wireless access device send the acquired information to the first rear-end wireless access device in real time through microwave channels. The first rear-end wireless access device sends received various information (water supply instantaneous flow information, water supply average flow velocity information, water supply pressure information, water supply temperature information, water return instantaneous flow velocity information, water return average flow velocity information, water return pressure information, water return temperature information, water supplement flow information, circulating water return filter screen differential pressure information, steam-water heater main pipe air inlet temperature information and steam-water heater main pipe air inlet pressure information) to the FC bus in real time. The first PC machine acquires various information in real time by accessing the FC bus and displays the acquired information in real time. The first storage server acquires various information in real time by accessing the FC bus and stores the acquired various information in real time. In the above process, if the first signal conditioner fails, the second signal conditioner acquires various information in real time by accessing the first RS232 bus, conditions the acquired information in real time, and sends the conditioned information to the first HART bus in real time. And if the third signal conditioner has a fault, the fourth signal conditioner acquires various information in real time by accessing the second RS232 bus, conditions the acquired various information in real time, and sends the conditioned various information to the second HART bus in real time. And if the fifth signal conditioner has a fault, the sixth signal conditioner acquires various information in real time by accessing the third RS232 bus, conditions the acquired various information in real time, and sends the conditioned various information to the third HART bus in real time. And if the first rear-end wireless access device fails, the first front-end wireless access device, the second front-end wireless access device and the third front-end wireless access device send the acquired information to the second rear-end wireless access device in real time through microwave channels. And the second rear-end wireless access device sends the received various information to the FC bus in real time. And if the first PC machine fails, the second PC machine acquires various information in real time by accessing the FC bus, and displays the acquired information in real time. And if the first storage server fails, the second storage server acquires various information in real time by accessing the FC bus and stores the acquired various information in real time.
Based on the process, compared with the existing heat supply network state monitoring system, the heat supply network state monitoring system for the gas thermal power plant based on various topological structures has the following advantages: the invention adopts a bus topology structure and a daisy chain topology structure, on one hand, the invention has the advantages of simple structure, less transmission media, no central node, no breakdown of any node, high reliability and easy expansion by utilizing the bus topology structure, on the other hand, the invention has reasonable network topology structure by utilizing the advantages of limited signal transmission lines to connect a plurality of nodes and no bus competition and blockage by utilizing the daisy chain topology structure, thus the invention has more stable operation and better reliability and effectively ensures the stability, reliability and real-time performance of the monitoring of the state of the heat supply network. Secondly, the microwave channel is adopted as a transmission medium, and the microwave communication system has the advantages of being mature in microwave channel modulation technology, large in communication capacity, wide in transmission frequency band, strong in anti-interference performance, low in cost, convenient and flexible to install and free of geographical range constraint, and has the quick and efficient transmission medium, so that the microwave communication system is stable in operation and good in reliability, and stability, reliability and real-time performance of heat supply network state monitoring are effectively guaranteed.
The invention has reasonable structure and ingenious design, effectively solves the problems that the existing heat supply network state monitoring system lacks a reasonable network topology structure and a quick and efficient transmission medium, and is suitable for the state monitoring of the heat supply network.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
A heat supply network state monitoring system for a gas thermal power plant based on multiple topological structures comprises a first acquisition unit, a second acquisition unit, a third acquisition unit, a first rear-end wireless access device, a second rear-end wireless access device, a first PC (personal computer), a second PC, a first storage server, a second storage server, a microwave channel and an FC (fiber channel) bus;
the first acquisition unit comprises a water supply flow sensor, a water supply pressure sensor, a water supply temperature sensor, a first signal conditioner, a second signal conditioner, a first front-end wireless access device, a first RS232 bus and a first HART bus; the water supply flow sensor, the water supply pressure sensor, the water supply temperature sensor, the first signal conditioner and the second signal conditioner are all connected with the first RS232 bus, and the water supply flow sensor, the water supply pressure sensor, the water supply temperature sensor, the first signal conditioner, the second signal conditioner and the first RS232 bus form a bus type topological structure together; the first signal conditioner, the second signal conditioner and the first front-end wireless access device are all connected with the first HART bus, and the first signal conditioner, the second signal conditioner, the first front-end wireless access device and the first HART bus form a bus-type topological structure together;
the second acquisition unit comprises a backwater flow sensor, a backwater pressure sensor, a backwater temperature sensor, a third signal conditioner, a fourth signal conditioner, a second front-end wireless access device, a second RS232 bus and a second HART bus; the backwater flow sensor, the backwater pressure sensor, the backwater temperature sensor, the third signal conditioner and the fourth signal conditioner are all connected with the second RS232 bus, and the backwater flow sensor, the backwater pressure sensor, the backwater temperature sensor, the third signal conditioner, the fourth signal conditioner and the second RS232 bus form a bus type topological structure; the third signal conditioner, the fourth signal conditioner and the second front-end wireless access device are all connected with the second HART bus, and the third signal conditioner, the fourth signal conditioner, the second front-end wireless access device and the second HART bus form a bus type topological structure together;
the third acquisition unit comprises a water supplementing flow sensor, a differential pressure sensor, an air inlet temperature sensor, an air inlet pressure sensor, a fifth signal conditioner, a sixth signal conditioner, a third front-end wireless access device, a third RS232 bus and a third HART bus; the water supplementing flow sensor, the differential pressure sensor, the air inlet temperature sensor, the air inlet pressure sensor, the fifth signal conditioner and the sixth signal conditioner are all connected with a third RS232 bus, and the water supplementing flow sensor, the differential pressure sensor, the air inlet temperature sensor, the air inlet pressure sensor, the fifth signal conditioner, the sixth signal conditioner and the third RS232 bus form a bus type topological structure; the fifth signal conditioner, the sixth signal conditioner and the third front-end wireless access device are all connected with the third HART bus, and the fifth signal conditioner, the sixth signal conditioner, the third front-end wireless access device and the third HART bus form a bus-type topological structure together;
the first rear-end wireless access device, the first front-end wireless access device, the second front-end wireless access device, the third front-end wireless access device and the second rear-end wireless access device are sequentially and wirelessly connected in series through microwave channels to form a daisy chain topology structure; the first rear-end wireless access device, the second rear-end wireless access device, the first PC, the second PC, the first storage server and the second storage server are all connected with the FC bus, and the first rear-end wireless access device, the second rear-end wireless access device, the first PC, the second PC, the first storage server, the second storage server and the FC bus form a bus type topological structure together.
The first signal conditioner, the second signal conditioner, the third signal conditioner, the fourth signal conditioner, the fifth signal conditioner and the sixth signal conditioner are ZSC31050 type signal conditioners; the first front-end wireless access device, the second front-end wireless access device, the third front-end wireless access device, the first rear-end wireless access device and the second rear-end wireless access device are all AP9330DN type wireless access devices; the first storage server and the second storage server both adopt TaiShan 2280 v2 type servers.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (2)
1. The utility model provides a gas thermal power plant uses heat supply network state monitoring system based on multiple topological structure which characterized in that: the microwave antenna comprises a first acquisition unit, a second acquisition unit, a third acquisition unit, a first rear-end wireless access device, a second rear-end wireless access device, a first PC, a second PC, a first storage server, a second storage server, a microwave channel and an FC bus;
the first acquisition unit comprises a water supply flow sensor, a water supply pressure sensor, a water supply temperature sensor, a first signal conditioner, a second signal conditioner, a first front-end wireless access device, a first RS232 bus and a first HART bus; the water supply flow sensor, the water supply pressure sensor, the water supply temperature sensor, the first signal conditioner and the second signal conditioner are all connected with the first RS232 bus, and the water supply flow sensor, the water supply pressure sensor, the water supply temperature sensor, the first signal conditioner, the second signal conditioner and the first RS232 bus form a bus type topological structure together; the first signal conditioner, the second signal conditioner and the first front-end wireless access device are all connected with the first HART bus, and the first signal conditioner, the second signal conditioner, the first front-end wireless access device and the first HART bus form a bus-type topological structure together;
the second acquisition unit comprises a backwater flow sensor, a backwater pressure sensor, a backwater temperature sensor, a third signal conditioner, a fourth signal conditioner, a second front-end wireless access device, a second RS232 bus and a second HART bus; the backwater flow sensor, the backwater pressure sensor, the backwater temperature sensor, the third signal conditioner and the fourth signal conditioner are all connected with the second RS232 bus, and the backwater flow sensor, the backwater pressure sensor, the backwater temperature sensor, the third signal conditioner, the fourth signal conditioner and the second RS232 bus form a bus type topological structure; the third signal conditioner, the fourth signal conditioner and the second front-end wireless access device are all connected with the second HART bus, and the third signal conditioner, the fourth signal conditioner, the second front-end wireless access device and the second HART bus form a bus type topological structure together;
the third acquisition unit comprises a water supplementing flow sensor, a differential pressure sensor, an air inlet temperature sensor, an air inlet pressure sensor, a fifth signal conditioner, a sixth signal conditioner, a third front-end wireless access device, a third RS232 bus and a third HART bus; the water supplementing flow sensor, the differential pressure sensor, the air inlet temperature sensor, the air inlet pressure sensor, the fifth signal conditioner and the sixth signal conditioner are all connected with a third RS232 bus, and the water supplementing flow sensor, the differential pressure sensor, the air inlet temperature sensor, the air inlet pressure sensor, the fifth signal conditioner, the sixth signal conditioner and the third RS232 bus form a bus type topological structure; the fifth signal conditioner, the sixth signal conditioner and the third front-end wireless access device are all connected with the third HART bus, and the fifth signal conditioner, the sixth signal conditioner, the third front-end wireless access device and the third HART bus form a bus-type topological structure together;
the first rear-end wireless access device, the first front-end wireless access device, the second front-end wireless access device, the third front-end wireless access device and the second rear-end wireless access device are sequentially and wirelessly connected in series through microwave channels to form a daisy chain topology structure; the first rear-end wireless access device, the second rear-end wireless access device, the first PC, the second PC, the first storage server and the second storage server are all connected with the FC bus, and the first rear-end wireless access device, the second rear-end wireless access device, the first PC, the second PC, the first storage server, the second storage server and the FC bus form a bus type topological structure together.
2. The multiple topology based heat network status monitoring system for a gas thermal power plant of claim 1, wherein: the first signal conditioner, the second signal conditioner, the third signal conditioner, the fourth signal conditioner, the fifth signal conditioner and the sixth signal conditioner are ZSC31050 type signal conditioners; the first front-end wireless access device, the second front-end wireless access device, the third front-end wireless access device, the first rear-end wireless access device and the second rear-end wireless access device are all AP9330DN type wireless access devices; the first storage server and the second storage server both adopt TaiShan 2280 v2 type servers.
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Application publication date: 20210910 |