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Underground transformer station heating and ventilating system fault monitoring system

A technology for underground substations and ventilation systems is applied in the field of fault monitoring systems for HVAC systems in underground substations.

Active Publication Date: 2016-08-10
STATE GRID FUJIAN ELECTRIC POWER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, natural air supply and mechanical exhaust are mainly used. If the ventilation system has fan blockage, reverse rotation, loose belt, air leakage from the air duct, loose fan shaft and impeller, excessive system resistance or partial blockage, etc. Insufficient air pressure in the pipeline, or even negative pressure, a large amount of hot air and harmful substances will spread to the equipment area and even the personnel activity area, posing a serious threat to the safety of on-site equipment and personnel
[0004] The existing HVAC monitoring system only detects the fan status of the ventilation system, and cannot give timely warnings for the above-mentioned other faults
Some maintenance personnel use the method of tying red cloth strips on the air outlet and installing remote video to monitor, but when a fault occurs, it cannot be found immediately, and the effect is not good

Method used

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  • Underground transformer station heating and ventilating system fault monitoring system
  • Underground transformer station heating and ventilating system fault monitoring system
  • Underground transformer station heating and ventilating system fault monitoring system

Examples

Experimental program
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Embodiment Construction

[0028] The underground substation adopts the method of natural air supply and mechanical exhaust. Each ventilation room is evenly distributed with at least one ventilation duct. When the fan of the ventilation duct is turned on, the air is exhausted, and the room is ventilated at the same time. When the wind force on the exhaust side is insufficient, The speed of indoor ventilation will slow down, so we can judge whether the entire ventilation duct is healthy by detecting whether the exhaust outlet at the end of the ventilation duct (located on the side of the exhaust shaft) reaches the design wind speed and wind direction.

[0029] Please check figure 1 , an underground substation HVAC ventilation system failure monitoring system, which includes at least one light emitting diode 10 and a micro-wind generator 20 for detecting the wind force at the air outlet at the terminal air outlet of the ventilation duct to be tested, the miniature The wind power generator 20 has a fan str...

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PUM

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Abstract

The invention discloses an underground transformer station heating and ventilating system fault monitoring system. The monitoring system comprises at least one light emitting diode and a miniaturized wind power generator arranged at an exhaust port of a ventilating pipeline terminal to be detected for detecting wind power at the exhaust port. The miniaturized wind power generator is provided with a fan structure, the output end of the miniaturized wind power generator is connected with and supplying power to the light emitting diode, and the rated output power of the miniaturized wind power generator matches the total light emitting power of the light emitting diode. The system provided by the invention has the following advantages: the monitoring system is ingeniously designed, the health state of a ventilating system is fed back through monitoring exhaust wind power of a ventilating pipeline, and the monitoring effect is better and more accurate.

Description

technical field [0001] The invention relates to a substation monitoring system, in particular to an underground substation HVAC fault monitoring system. Background technique [0002] With the rapid development of the urban economy, the electricity load is also increasing rapidly, and the load density in the downtown area is getting higher and higher. However, the planning and site selection of substations are subject to many constraints such as land use and the environment, and the contradiction between power grid construction and urban construction has become increasingly prominent. , Underground substations can not only reduce the area occupied by substations, improve the utilization rate of land resources, but also reduce the impact on the surrounding environment and beautify the environment, which is also the development trend of urban substations. [0003] The function of the HVAC ventilation system of the underground substation is to adjust the airflow in the basement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00F03D9/25F04D27/00
CPCH02J13/00F04D27/001Y04S10/123Y02E10/72Y02E40/70
Inventor 郭威郑南章张晓惠张力伟周成龙林彦飞王明敏林敏辉包必顺李庆凯郭世煌陈彩凤郑剑毅林允森李彤宁陈晓芳鄢园陈勇滨
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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