Multi-energy-flow measuring point system for distributive energy station

Abstract

The invention provides a multi-energy-flow measuring point system for a distributive energy station. The system is characterized in that a supercharger and gas turbine set, an extraction condensing turbine waste heat boiler and an extraction condensing type turbonator set form an extraction condensing set; the supercharger and gas turbine set, a backpressure unit waste heat boiler and a backpressure turbonator set form a backpressure set; a lithium bromide set, a transformer, a gas boiler and an electrical chiller set form assisting systems for the two sets; the extraction condensing set and the backpressure set are capable of supplying energy flow of various forms to the outside through a hot water supplying / returning female pipe, a heat supplying steam connecting box, a cold water supplying / returning female pipe and a power bus; a natural gas conveying main pipe is provided with temperature, pressure, flow rate and calorific value measuring points; the heat supplying steam connecting pipe is provided with temperature and pressure measuring points; the power bus is provided with a voltage measuring point; the energy station environment is provided with temperature, pressure, humidity measuring point and other measuring point arrangement structures. The measuring point system realizes multi-energy-flow monitoring for a 'one-extraction-one-backpressure' set.

Description

technical field [0001] The invention relates to a multi-energy flow measuring point system for a distributed energy station. Background technique [0002] 1. Distributed Control System (DCS) [0003] Based on the microprocessor, DCS adopts the design principle of decentralized control function and centralized display operation, which has become the mainstream control system used in power plants. The operation station is used to display and record the process data from each control unit, and it is the operation interface for people to interact with the production process information. A typical operation station includes a host system, a display device, a keyboard input device, an information storage device, and a printout device, etc., and mainly realizes powerful display functions, alarm functions, and operation functions. [0004] As the mainstream control system of the current power plant, the DCS system needs to monitor in real time the real-time data of all instrumenta...

AI Technical Summary

Problems solved by technology

[0013] 1. The measuring point data in the DCS system cannot meet the data acquisition requirements of the multi-energy flow IEMS system SCADA

The measuring points collected by the existing DCS system only meet the actual production and operation needs of the power plant, and cannot meet the monitoring needs of the multi-energy flow system

The measurement point requirements proposed by the multi-energy flow system do not consider the actual operation of the power plant. Unreasonable and repeated measurement points will reduce the operating efficiency of the power plant unit and even bring some safety risks.

[0014] 2. The existing power plant still relies on the DCS system to realize the operation control of the unit, and its operation scheduling can only rely on the load demand plan, and the production task is assigned by the power plant chief

It is impossible to realize the automatic scheduling management based on the load forecast on the energy consumption side and the performance status of the equipment on the energy supply side, the operating profit and benefits have not been maximized, and the operation mode cannot be intelligent

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