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ISCS-based ventilation and air-conditioning energy-saving control system and method for subway stations

A technology for energy-saving control and subway stations, applied in the direction of mechanical equipment, etc., can solve the problems of high energy consumption of air-conditioning systems, achieve precise energy-saving control, improve extensive upgrades, and save energy consumption

Active Publication Date: 2022-02-18
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Purpose of the invention: To provide an ISCS-based energy-saving control system and method for subway station ventilation and air conditioning, which solves the problem of large energy consumption of air-conditioning systems in subway operations

Method used

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  • ISCS-based ventilation and air-conditioning energy-saving control system and method for subway stations
  • ISCS-based ventilation and air-conditioning energy-saving control system and method for subway stations
  • ISCS-based ventilation and air-conditioning energy-saving control system and method for subway stations

Examples

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Effect test

Embodiment 1

[0099] Such as figure 1 As shown, an ISCS-based ventilation and air-conditioning energy-saving control system for subway stations includes: urban rail transit integrated monitoring system (ISCS system), PLC controller, air-conditioning wind system and cold water system, database and energy-saving system workstations. The ISCS system passes PLC The controller collects data from the air-conditioning system and the cooling water system or issues control commands to the air-conditioning system and the cooling water system;

[0100] A cross-section data is periodically stored in the database: ambient temperature and humidity values, equipment operating status, frequency calculated by energy-saving strategy, opening degree, outlet water temperature setting value, enthalpy value, cooling load, mode, equipment energy consumption, etc.

[0101] The energy-saving system workstation uses the WEB framework to display energy-saving data, and stores the energy consumption of air-conditionin...

Embodiment 2

[0103] An ISCS-based energy-saving control method for ventilation and air-conditioning in subway stations, mainly for the energy-saving control of wind-water joint adjustment of air-conditioning air systems and cold water systems in subway stations during the air-conditioning season, including the following steps:

[0104] Step 1. Calculate the outdoor fresh air enthalpy value and the air enthalpy difference between the indoor station hall and the platform based on the outdoor fresh air temperature and humidity, indoor station hall and platform air temperature and humidity environment data collected in real time. According to the outdoor fresh air enthalpy value, indoor station hall and platform The air enthalpy difference is obtained from the control mode of the ventilation and air conditioning system in the public area of ​​the station, and the control is issued to the air conditioning system through the PLC controller;

[0105] Use the configurator configuration tool of the ...

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Abstract

The invention discloses an ISCS-based energy-saving control method for ventilation and air conditioning in subway stations. According to the collected outdoor fresh air temperature and humidity, indoor station hall and platform temperature and humidity environment data, the fresh air enthalpy value and the indoor station hall and platform enthalpy value are calculated. The air-conditioning system control mode in the public area of ​​the station is obtained from the fresh air enthalpy value and the air enthalpy difference between the indoor station hall and the platform, and the control mode is issued to the air-conditioning system through the PLC controller to realize automatic mode switching; according to the collected platform temperature and target temperature, The fuzzy control algorithm is used to calculate the set frequency of the large-scale system air-conditioning unit, the return and exhaust fan, and the set opening of the dynamic balance valve at the end of the large and small systems, and the calculation results are sent to the PLC to control the corresponding equipment; by calculating the load of the chiller, Control the number of chillers running, set the frequency of chilled water pumps, cooling water pumps, and outlet water temperature of chillers. The invention can accurately control the operation of the equipment and has low energy consumption.

Description

technical field [0001] The invention relates to an ISCS-based ventilation and air-conditioning energy-saving control system and method for subway stations, belonging to the technical field of subway monitoring. Background technique [0002] ISCS (Integrated Supervisory Control System—urban rail transit integrated monitoring system, referred to as "Integrated Monitoring System"), for the overall energy-saving control of subway stations, ISCS integrated monitoring system has unique advantages such as a large amount of interdisciplinary information and comprehensive monitoring equipment. [0003] The subway cooling air-conditioning system is composed of cold source (chiller), air treatment equipment (combined air conditioner, surface cooler), fan, air valve, water pump, air and water piping system, etc. Classified according to the characteristics of use, it can be divided into ventilation and air conditioning systems for station equipment management rooms (short for station sma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/46F24F11/65F24F11/70F24F11/64F24F11/52
CPCF24F11/46F24F11/65F24F11/70F24F11/64F24F11/52
Inventor 徐宏伟梁奕陆艮峰刘鹏宇王毅力刘宏灿
Owner NARI TECH CO LTD
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