Overhaul of Therapeutic Building

Water supply and sewerage.

Detailed drawings of the project section are developed in accordance with the following regulatory and technical documentation:

- SNiP 2.04.0185 * "Internal water supply and sewerage of buildings."

- Manual to SNiP 2.08.0289 "Design of healthcare institutions."

- SanPiN 2.1.3.263010 "Medical institutions."

Design decisions are made based on the following requirements:

- provision of water of the necessary quality for household and drinking needs;

- provision of normal sanitary and technical conditions for workers.

In accordance with the requirements for the quality of consumed water and the composition of waste water, the following networks are designed:

- cold-drinking fire water supply (B1);

- hot water supply (T3);

- circulation pipeline (T4);

- household sewerage system (K1);

- industrial sewerage system (K3);

2. Water supply.

2.1. Estimated water flow rates.

Cold water: 7.92 m3/day; 2.23 m3/h.

Hot water: 11.53m3/day; 2.91 m3/h.

Internal fire extinguishing flow rate is 2.5 l/s.

2.2. Design water supply source.

The source of the hospital's water supply is the existing entry into the building with a diameter of 50mm. The water in the network corresponds to GOST P5123298.

3. Drainage.

3.1. Estimated wastewater flow rates.

The estimated consumption of domestic and industrial wastewater is as follows:

Qc = 19.45 m3/day; qh = 5.08 m3/h; qc = 2.35 l/s.

3.2. Diagram of the designed water disposal system and structure.

The project provides for two sewage networks: household and industrial sewage.

Household and production effluents by gravity come to the existing sewage releases of the building. Production sewage output is designed above household sewage.

4. Internal water supply and drainage.

4.1. Water supply.

Water supply is provided from the existing entry into the building with a diameter of 50mm. At the input, a water consumption metering unit with a bypass line for fire extinguishing needs is installed, on which an electric shutter is installed. Each fire crane has buttons for actuation. Water is supplied to sanitary devices and process equipment. The hot water supply is designed from the existing 40 mm diameter input.

Washbasins with cold and hot water supply equipped with mixers are installed in wards for patients, medical offices, staff rooms, toilets, procedural rooms and auxiliary rooms.

Washbasins with elbow mixers and antiseptic dispensers are installed in all medical rooms, dressing rooms, staff bathrooms. Bathrooms for personnel are equipped with electric towers, the rest of the bathrooms are paper disposable. The hospital building is existing. For standby hot water supply, two Stiebel Eltron water heaters of the SHO AS 600 brand (7.5 kW each) are provided, which is installed in the basement. For watering the territory and green spaces, external watering cranes are designed along the perimeter of the building. Laying of cold and hot water supply pipelines in the basement is provided with thermal insulation. The project provides for thermal insulation of the main pipelines of cold and hot water supply, as well as hot water supply risers with mineral wool foil cylinders, 30 mm thick of the ROCWOOL brand.

Internal water supply systems are designed with upper wiring on the basement. Towels are installed on the hot water pipeline. To exhaust air under the ceiling of the third floor, Mayevsky cranes are installed on hot water risers. Lines and risers of cold and hot water supply systems are designed from water and gas galvanized pipes as per GOST 326275 *, supply to risers from polypropylene pipes. Steel pipes are painted with oil paint in two times.

4.2. Drainage.

Water disposal is carried out by gravity to the existing sewage outlets. The internal network of household and industrial sewers is made of polypropylene sewage pipes. Toilets with pedal start for flush tanks are installed in all bathrooms. To reduce the ventilation risers brought to the roof, the risers in the attic are combined and heat insulated with miniralate cylinders.

In the basement from the pit installed in the heat station, water is pumped out using the submersible electric pump "WILODRAINTMF" to the relief..

Fire fighting measures

Water flow rate for internal fire extinguishing is accepted according to SNiP 2.04.0185 and is 2.5l/s. Internal fire extinguishing is carried out from designed fire cranes. Two OU5 fire extinguishers are installed in each fire cabinet. In switchboard to provide OU5 brand fire extinguishers.

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