A hospital fan coil unit temperature trend judgment control method and device

Abstract

The invention relates to a hospital fan coil temperature trend judgment control method and device. The method comprises the steps that a first air temperature of a waiting area at a first time point is collected; when the first air temperature meets a first preset condition, a second air temperature of the waiting area at a second time point is collected; and when the second air temperature meets a second preset condition, a control signal is output to control an actuator so that the actuator can execute a corresponding function. According to the hospital fan coil temperature trend judgment control method and device, the state of the actuator can be controlled in advance by judging the temperature change trend of the waiting area of a fan coil in advance so that the flow of chilled water of the fan coil can be changed, and therefore the fluctuation of the air temperature change in an air conditioner area of the fan coil is reduced, the indoor thermal comfort can be guaranteed, frequent on-off of the executor can also be avoided, and the delay problem of an air conditioner when the whole air supplying cold amount changes is solved.

Description

Technical field [0001] The invention relates to the field of hospital air conditioners, and more specifically, to a method and device for judging and controlling the temperature trend of a hospital fan coil. Background technique [0002] Indoor air quality has a direct impact on people's physical and mental health, comfort and work efficiency. In order to obtain a comfortable thermal environment, each country consumes a large amount of energy for heating and air conditioning. For the air quality of the hospital, especially when the air temperature in the waiting area of ​​the outpatient department of the hospital changes, it will make the human body feel uncomfortable. Therefore, the fluctuation of the air temperature in the waiting area of ​​the outpatient department of the hospital is less, and the thermal comfort can be achieved. Claim. [0003] Traditional central air-conditioning fan-coil system usually uses a controller for temperature set point PID control, that is, the co...

AI Technical Summary

Problems solved by technology

[0003] The traditional central air-conditioning fan coil system usually uses the controller to perform temperature setting value PID control, that is, the controller compares the difference between the set temperature of the service area and the return air temperature of the fan coil unit, and then adjusts the chilled water of the fan coil unit. However, this method only adjusts the chilled water flow of the fan coil unit when the difference between the return air temperature of the fan coil unit and the set temperature reaches its adjustable range, and the controller does not adjust the air conditioner temperature within the dead zone range of the air conditioner. perform any action

In addition, when the measured return air temperature fluctuates, the execution action of frequently adjusting the chilled water flow will occur. Therefore, the existing technical solution will not only cause a large delay in the change of the overall supply air cooling capacity, but also stabilize Poor performance, large loss

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