Informationization Plan for Air Conditioning Management in Hospital Campus

Industry background

The types of energy consumption systems in hospitals are relatively more comprehensive compared to other public institutions, covering air conditioning cooling and heating, domestic hot water, lighting, medical steam, power, canteen cooking, medical equipment, office equipment, etc. The sub item energy consumption statistics of more than 30 hospitals in Shanghai are shown in the figure:

The energy-saving space of hospital air conditioning system is huge

Waste of power consumption during operation:The mobility of hospital personnel is high, and the air conditioning is running at full capacity. Room users often fail to turn off the air conditioning and run it excessively, resulting in wasted power consumption of the air conditioning

Difficulty in maintenance and upkeep:Regular troubleshooting and maintenance of air conditioning equipment are time-consuming and labor-intensive, and some air conditioning failures cannot be detected in advance, which affects normal medical work

Types of air conditioning

Water turbine central air conditioning: It has a main unit, water pump, cooling tower, and end fan coil unit, usually water-cooled.

VRV central air conditioning: multi split, one to many, one external unit with multiple internal units, refrigerant is Freon.

Split type air conditioner: one external unit with one internal unit, refrigerant is Freon, including wall mounted air conditioner, cabinet air conditioner, etc

Working principle of water machine

The central air conditioning system mainly consists of a refrigeration unit, a cooling water circulation system, a chilled water circulation system, a fan coil system, and a cooling tower.

The refrigeration unit compresses the refrigerant into a liquid state through a compressor and sends it to the evaporator for heat exchange with chilled water, cooling the chilled water. The chilled water is then sent to the cooling coils at each fan outlet by the refrigeration pump, and is blown by the fan to achieve the purpose of cooling. After evaporation, the refrigerant releases heat into gas in the condenser. The cooling pump sends the cooling water to the cooling tower for spray cooling by the tower fan, and exchanges heat with the atmosphere to dissipate the heat into the atmosphere.

Water machine: chiller unit+gas boiler+fan coil unit

Water machine: dual supply and triple supply

Water machine: air conditioning control

VRV multi split: outdoor unit+indoor unitmachine

The outdoor unit is connected to the indoor unit through a wired connection, and the control mode of the indoor unit includes both infrared control and wired control (CAN/MODBUS/RS485/IC)

Split type air conditioner: on hook+cabinet unit

system architecture

Platform Introduction-Centralized control and management of air conditioning

Real time monitoring of air conditioning operation status:Total number of devices, number of startups, corresponding modes and temperature settings, etc.
Remote control and management of air conditioning:One click power on/off, temperature adjustment, setting wind speed and mode, etc.

Platform Introduction-Energy consumption measurement and statistics

Platform Introduction-User Management Mode Settings

According to the needs of unit users, functions such as timed power on/off, temperature limit, and mode limit can be set.
Instructions can be executed on a monthly, daily, and hourly basis, tailored to the user's actual usage scenario.

Solution Value