With the improvement of people's living standards, the requirements for comfort are getting higher and higher. People not only hope to enjoy comfortable swimming fun in summer, but also hope to enjoy a swimming environment with moderate temperature and fresh air in cold winter. Therefore, a constant temperature swimming pool came into being

What is a heated swimming pool

         Constant temperature swimming pool, also known as indoor constant temperature swimming pool; that is, the temperature of the water in the swimming pool is maintained at 26-28 degrees, which is compatible with the temperature of the human body.

         1. Key points of constant temperature and humidity engineering design for indoor swimming pools

         1. Design requirements for the constant temperature system of the indoor swimming pool water temperature

         1.1. Generally speaking, the constant temperature of the indoor day pool water is maintained by the recovered heat provided by the heat pump. If the pool water temperature requirement cannot be met, a boiler or air source heat pump or electric heater is used for supplementary heating.

         1.2. The initial heating of indoor pool water is generally done by boilers, air source heat pumps or electric heaters. The heating system is completed in parallel with the three-in-one constant temperature dehumidification heat pump unit, and the pool water temperature is automatically controlled.

         1.3. The normal indoor pool water circulation process is: pool water → water pump → dehumidification heat pump → pool water.

          2. Design requirements of constant temperature and humidity air-conditioning system for indoor environment

          The indoor environment constant temperature and humidity system is to ensure that the indoor temperature and humidity are suitable for the semi-naked or fully nude state. The human body's comfortable temperature is 18-23℃, and the humidity is 50-85%. There is a certain difference between the temperature and humidity of the human body environment in winter and summer. Generally speaking, this system adopts constant temperature and humidity air conditioning (heat pump) system for air conditioning.

          3. Design requirements for fire protection and noise of indoor swimming pools

          3.1. Fire protection: The air outlet of the three-in-one thermostatic dehumidification air conditioning equipment (heat pump) unit must be equipped with an electric fire damper, which is linked to the thermostatic dehumidification heat pump. After the fire damper is closed, the dehumidification heat pump automatically stops working.

          3.2. Noise reduction treatment: When the three-in-one constant temperature dehumidification air conditioner (heat pump) unit is connected to the air outlet, return air outlet, and air outlet with the air duct, a static pressure box is added in the middle to reduce noise. Install a static pressure box between the equipment air duct and the air outlet, and use a soft connection to reduce vibration.

          4 Design requirements for indoor swimming pool control system

          4.1. The constant temperature and humidity system engineering adopts PLC programmable touch screen control system with fault display function, and the unit adopts automatic control mode. When the indoor air temperature, humidity, and pool water temperature are set, the equipment will enter a fully automatic operation state to ensure that the temperature and humidity in the constant temperature and humidity zone of the swimming pool meet the requirements for use, save energy, and keep the pool water temperature constant without special care. The unit reserves a communication interface, which can be connected with the fire control room and the central control room to realize centralized control. The operation is simple and convenient, which avoids the inconvenience caused by the movement of personnel to the user's use of the equipment.

          4.2 Constant temperature and humidity system engineering should have multiple protection measures. The refrigeration system is equipped with high and low pressure protection, the pool water heat pump auxiliary heating cycle water-cooled condenser is equipped with a pool water flow switch box temperature switch, and the electrical control is equipped with overcurrent protection and leakage protection. Special note: The outdoor condenser is generally selected by Party A. The outdoor condenser can cool the indoor air and realize the air conditioning function. If not equipped, in summer, only fresh air can be used to cool the indoor air. The installation conditions are: the running distance of the refrigerant one-way pipeline is not more than 25m, and the height between the host and the outdoor condenser is reduced between +10m and -3M.

          5. The indoor swimming pool sanitation and disinfection system should have the following four disinfection and disinfection functions:

          5.1. Effectively kill harmful microorganisms: such as mold, legionella, hepatitis virus, coronavirus, avian influenza virus, influenza virus, etc.;

          5.2. Decompose volatile organic compounds: benzene, formaldehyde, ammonia, ether and other chemical organic compounds;

          5.3. Elimination of peculiar odors: peculiar odors produced by chemical reactions such as mildew and decay in human breathing, sweat, urine, etc.;

          5.4. Settling inhalable particulate matter: suspended particulate matter can be inhaled in the air.