Air conditioning system control device based on pressure sensor

Abstract

The invention relates to an air conditioning system control device based on a pressure sensor. The air conditioning system control device comprises an air conditioning system controller, the air conditioning system controller is connected with a solar radiation sensor, an outdoor temperature sensor, an outdoor humidity sensor, an indoor temperature sensor, an indoor humidity sensor, a pressure sensing ground mat and a plurality of air conditioning air supply tail ends, the air conditioning air supply tail ends are connected with an air conditioning fan three-speed controller and an air conditioning water system electric valve, and the air conditioning fan three-speed controller and the air conditioning water system electric valve are connected with the air conditioning system controller. The air conditioning system control device based on the pressure sensor has the advantages of being high in intelligent degree, wide in applicability, good in energy-saving effect, and capable of measuring personnel density, controlling the air conditioning air supply tail ends to run at maximum refrigerating capacity in summer and run in minimum heating quantity in winter when the density of indoor personnel is high and the apparent temperature rises instantly and obviously improving human body thermal comfort when personnel at a waiting hall and an entrance of a high-speed rail or a metro are intensive.

Description

technical field [0001] The invention belongs to the field of air conditioning system control, in particular to an air conditioning system control device based on a pressure sensor. Background technique [0002] Delay and unsteady-state characteristics of indoor air-conditioning load: In air-conditioning technology, the cooling or heat provided to the room in order to maintain a certain temperature and humidity conditions in the room is called the cooling load or heat load of the air-conditioning system. Includes sensible heat load and latent heat load. Human body heating has unsteady characteristics, which is an unsteady load in summer and an unsteady heat source in winter. The solar radiation and the radiation load of dense crowds cannot immediately form the cooling load of the air-conditioned room, but are absorbed, reflected, released heat, reabsorbed, re-reflected, and re-radiated by the inner surface of the room and various furnishings. During the process, through the...

AI Technical Summary

Problems solved by technology

However, the impact of this part of radiant heat on the thermal comfort of the human body is not delayed, and it will immediately affect the body's somatosensory temperature

[0003] Sudden gatherings of people often occur in the waiting halls and entrances of high-speed rail or subways. Due to the radiation heat transfer between people and the small distance between people and poor ventilation, the body temperature of people in the crowd It will increase instantaneously, and people will feel very hot and uncomfortable

However, due to the unsteady heating of people gathering, it takes a while to affect the air temperature of the entire room. The thermostat of the air-conditioning system installed on the side wall cannot measure the changes in the air temperature around the human body in time, nor can it measure the occurrence of the human body's hot and dry feeling. Therefore, it is impossible to control the air supply equipment at the end of the air conditioner to respond in a timely manner—increase the cooling capacity in summer and reduce the heat supply in winter to reduce the body temperature of the human body in the crowd and improve the thermal comfort of the human body

Due to the existence of this situation, the air-conditioning system in the waiting room and entrance of the high-speed rail or subway built with high investment and high standards often cannot effectively make passengers feel comfortable when they need it most.

Images