Organization design for the electrical installation of water supply and drainage in a comprehensive building?

What are the specific contents of the construction organization design of the water supply and drainage electrical installation in a comprehensive building? Zhongda Consulting will answer it for you below.

(1) Project Introduction

This project is a star hotel, guesthouse, and comprehensive high-rise building. The total construction area is 138,000 square meters, of which the podium is 55,042 square meters; the tower area is 58,546 square meters; and the underground is 24,418 square meters. The building has 36 floors, including 8 podium floors with 7863 square meters per floor; 3 underground floors with 8137 square meters per floor; and 24 floors in the tower with 2458 square meters per floor.

The main civil structure of this project has been completed. The total construction period of the installation project is expected to be 400 days. The specific start and completion date has not yet been determined.

(2) Main work contents

The main civil structure of this project has been completed, so there is no reserved work. The main installation contents are: water supply and drainage, electrical, ventilation and air conditioning . This plan mainly considers indoor water supply and drainage, strong and weak electricity; it does not consider the removal of old indoor pipelines, equipment, etc.

1. Water supply and drainage part

This project mainly includes domestic water supply system, drainage system, wastewater system, rainwater system, fire hydrant system, self-spraying system, hot water and its circulation system and equipment.

1.1 Domestic water supply system:

1.1.1 Indoor water supply pipes use three types of pipe materials: DN≥100 uses thickened welded steel pipes and welded connections; DN≤80 uses galvanized steel pipes Wire connection; aluminum-plastic pipe wire connection is used inside the water meter. The domestic water supply system is divided into four areas: from the third to seventh underground floors, the municipal pipe network pipes and the ninth-floor domestic water tank supply water at the same time; from the eighth to the seventeenth floor, the nineteenth-floor decompression domestic water tank and the municipal pipe network supply water at the same time; From the eighth to the 22nd floors, water is supplied directly from municipal pipes; from the 23rd to the 33rd floors, the decompression water tank on the 19th floor pressurizes the water and supplies it to the roof water tank, which then supplies water by gravity.

1.1.2 The water supply source of this project consists of two water plant water supply pipe networks, each of which introduces a DN150 water pipe to directly supply the water supply pipes from the third to seventh floors underground, the water tank from the ninth floor, and the water from the eighth to tenth floors. There are seven layers of water supply pipes and nineteen layers of domestic water tanks.

1.1.3 Domestic water supply mainly provides water for bathrooms on the third to ninth floors underground, some kitchen water, and office areas on the 10th to 33rd floors.

1.2 Drainage system

1.2.1 Drainage system mainly refers to the domestic sewage drainage system. According to the special needs of the high-rise, the riser pipe and the main pipe are made of flexible drainage cast iron pipes, connected by flange rubber rings; the branch pipes (referring to the connecting pipes in the bathroom) are made of plastic drainage pipes UPVC pipes, and the sockets are bonded and connected; the discharge pipes are made of socket cast iron Drain pipe asbestos cement interface connection.

1.2.2 The drainage pipes on the tenth floor and above are gathered under the tenth floor (i.e. the ninth floor space) and are discharged separately using DN200 drainage pipes. The elevation of the drainage horizontal pipe outlet is 3.70m; other parts of the drainage pipe , the drainage pipes above one floor are mostly discharged separately, and the risers at the same location are discharged to their respective nearby sewage pools on the three underground floors, and then are lifted and discharged to outdoor sewage wells by their respective drainage pumps.

1.2.3 Longer drainage risers are all installed in ventilation pipes of the same diameter; when the above-ground parts are discharged separately at the same location, the underground drainage risers at the same location are still equipped with ventilation pipes of the same diameter. The trachea is connected to the above-ground ventilator.

1.2.4 The inspection port on the drainage riser pipe is set in a partition, 1.00m high from the ground on each floor. If there is a turning place, special treatment will be carried out in special circumstances.

1.3 Wastewater System

1.3.1 Mainly considers water collection for pipeline maintenance on the ground, water tank overflow water, drainage water, ground water collection in case of fire, etc. After being collected by the wastewater system The water is uniformly discharged to the three underground sump pits, and is then pressurized by a lift pump and discharged to the outdoors.

1.3.2 The wastewater riser pipe is made of flexible cast iron drainage pipe, and the flange rubber ring connection is used; the branch pipe is made of UPVC pipe, and the socket is bonded and connected.

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