A prefabricated equipment cabin intelligent environment control system and its control method

Abstract

The invention discloses a prefabricated equipment compartment intelligent environment control system and a control method thereof. The system comprises an in-compartment state acquisition device, an intelligent control device and an environment control executive device, wherein the in-compartment state acquisition device comprises a plurality of temperature and humidity sensors; the intelligent control device comprises an environment central control unit, a relay and a contactor; the environment control executive device comprises a fan and an industrial air conditioner; the temperature and humidity sensors are connected with the environment central control unit; the environment central control unit is respectively connected with the relay and the contactor; and both the fan and the industrial air conditioner are connected with the environment central control unit through the relay and the contactor. The working principle of system is to control the relay and the contactor to start or stop the fan or the air conditioner through a central control program according to different acquired information. The system adopts an interactive operation control mode by taking the fan as a main body and the industrial air conditioner as an auxiliary body, and integrally utilizes the advantages of long service life, energy economization and low cost of the fan and the characteristics of strong conditioning effect and capacity of the air conditioner.

Description

technical field [0001] The invention belongs to the technical field of intelligent environment control, and in particular relates to a prefabricated equipment cabin intelligent environment control system and a control method thereof. Background technique [0002] According to the core concept of "standardized design, factory production, and prefabricated construction" put forward by the State Grid Corporation of China, the use of outdoor prefabricated secondary equipment cabins is being vigorously promoted, which can reduce the actual area of ​​the project, facilitate on-site installation, and simplify On-site wiring, easy on-site inspection and maintenance. The prefabricated secondary equipment compartment is produced, installed, and transported by the factory as a whole, and realizes factory integration and factory commissioning of secondary combined equipment installation, secondary wiring, lighting, HVAC, fire alarm, security, image monitoring, etc. [0003] When in use...

AI Technical Summary

Problems solved by technology

[0005] The first type of environmental control product is limited to effective convection of the air inside and outside the cabin. This control method cannot effectively suppress condensation in the cabin, and cannot provide a working environment lower than the ambient temperature outside the cabin. When the temperature outside the cabin is higher than 40 ℃, the equipment in the cabin is in a high-temperature operating environment, which will reduce the operating life and reliability of the equipment. In severe cases, it will cause equipment failure in the cabin. comfortable environment

[0006] However, the purchase and use costs of industrial air conditioners are high, and the energy consumption is high, which is contrary to the green concept of energy conservation.

At the same time, the failure rate of the air conditioner is high and the maintenance speed is slow, which is not conducive to long-term reliable operation

The general civilian split air conditioner has low reliability and is not conducive to long-distance transportation. Since the Freon used as the refrigerant cannot be monitored, the air conditioner is in a failure state when there is no refrigerator, and the equipment in the cabin is prone to failure or even damage when the temperature outside the cabin is high.

More importantly, since the equipment cabin is in a sealed state when the air conditioner is running, the toxic and harmful gases volatilized by the equipment and cabin materials in the cabin cannot be discharged in time, and the long-term accumulation will not be conducive to the maintenance personnel working in the cabin.

[0007] At present, the environmental control of most equipment compartments in substations is completed by a single air conditioner or fan, but the current air conditioners do not have the function of automatically controlling condensation, and the average time between failures is short, and the purchase and use costs are high, and the energy consumption is high. The concept of green environmental protection and energy saving advocated is contrary to

If only exhaust fans are used, the control effect cannot be achieved under extreme weather conditions, and a comfortable working environment cannot be provided for maintenance personnel

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