Laboratory piping engineering

NegotiableUpdate on 01/19

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Overview

Laboratory piping engineering: The layout of laboratory piping systems is composed of three parts: main pipes, main pipes, and branch pipes. The main pipe refers to the pipeline from the outdoor pipeline network to the laboratory, the main pipe refers to the pipeline that distributes from the main pipe to each unit, and the branch pipe refers to the pipeline that connects from the main pipe to the experimental platform and equipment. Various pipelines are generally arranged in two ways: horizontal and vertical.

Product Details

Laboratory piping engineering

There are many shared facilities and pipelines in experimental buildings. Common pipelines in small laboratories include water pipes, air ducts, electrical conduits, and gas pipes. In large or special laboratories, there are also pipelines for compressed air, steam, hydrogen, oxygen, vacuum, distilled water, air conditioning, and telecommunications networks. The layout principle of engineering pipeline network is to ensure safe use, convenient installation, maintenance, modification and addition, while also making various pipelines as short, economical, reasonable, clean and beautiful as possible.

1、 Common types of pipelines in laboratory buildings

Types of experimental building pipelines
Pipeline type	Instructions
cold water	Applied to various water points in the laboratory through the tap water pipe
Pressurized water	The water pressure of the tap pipe is not enough, pressurized water can be used to drink from the water pump in the machine room
drinking water	Directly divert water from the main pipe and apply it to kitchens, water dispensers, animal rooms, etc
hot water	Applied to laboratory hot water usage points
pure water	① The central pure water supply mode is supplied by the central computer room, and the water points are the pure water usage points of each laboratory. For the dispersed pure water supply mode, the pure water equipment is installed in the laboratory ② pure water supply port (special water), made of stainless steel or plastic pipes. The circulating supply port can avoid diversion in the water flow of the pipeline
gas	Some laboratories may use
compressed air	Commonly used in physical and chemical laboratories and biological laboratories, it can be supplied with gas from the central computer room or controlled by the laboratory's electric pump
vacuum	Some laboratories may use
Laboratory gas	Provide most special gases, such as nitrogen, carbon monoxide, carbon dioxide, nitrous oxide, helium, etc. Some gases are supplied by the central chamber, while others are supplied by the gas end. Mainly used for precision instruments or reaction experiments
acetylene	Combustible gases have special and strict requirements, and the pipeline must be made of stainless steel. Require a shut-off valve with a flame arrester, typically used in atomic absorption spectroscopy
steam	Usually supplied by the steam generator in the computer room, with a specially designed supply port
high-voltage power	Provide lighting power, equipment power, emergency backup power, etc., divided into 220V and 380V
weak current	Including telephone, computer network, and intelligent control
firefighting	Water pipes can be used for fire protection pipelines in ordinary areas of experimental buildings, while dry ice gas pipelines are required for precision instrument rooms
air duct	Including exhaust system ducts and makeup air system ducts
air conditioner	Ordinary area air conditioning and special experimental air conditioning do not interfere with each other

2、 Layout of pipeline system

Various pipe networks are composed of three parts: main pipes, main pipes, and branch pipes. The main pipe refers to the pipeline from the outdoor pipeline network to the laboratory, the main pipe refers to the pipeline that distributes from the main pipe to each unit, and the branch pipe refers to the pipeline that connects from the main pipe to the experimental platform and equipment. Various pipelines are generally arranged in two ways: horizontal and vertical.

1. Vertical mode of main pipe well

Set up a pipe well at one end or in the middle of the building, with the main pipe arranged vertically inside the well. At each floor, the main pipe splits into horizontal main pipes, which run from one end to the other. The water supply and return pipes for telephone, water supply, gas, and air conditioning fan coil units are supplied by the main pipe. The main pipes for each floor are laid on the ceiling of the corridor and connected to each room for use. For the renovation of ordinary experimental buildings or low rise experimental buildings, it is recommended to adopt this mode.

2. General Manager Technical Level Model

Set up a technical floor in the experimental building, with horizontal main pipes laid in the technical floor, which can also be located on the bottom or top floor. The main pipes are arranged horizontally, while the main pipes are arranged vertically. Setting up a technical layer for pipeline system maintenance is very convenient, but the initial investment in construction will be relatively large. For newly built high-rise experimental buildings, it is recommended to adopt this model.

3. Branch downward supply mode

The branch pipe provides a service pipeline system to the laboratory from above through service columns or flexible supply system modules, which can achieve great flexibility and avoid the need for future development and renovation due to the installation of supply systems on the ground. Adopting this mode generally requires the water tank to be located on the side platform rather than the central platform. The experimental platform adopts a flexible and easy to move standard size experimental platform, which is used in conjunction with the supply system module above. The standard size experimental platform can ensure that it can be assembled into a standard central or side platform according to new needs. This model is applicable to research institutions, incubation buildings, enterprises and other institutions that need to continue to grow and develop in the future. It is also a new supply model.

4. Branch upward supply mode

The branch pipes are arranged along the floor slab. If the experimental platform adopts an island layout, the branch pipes are generally laid along the bottom of the floor slab, and some branch pipes pass through the floor slab and connect upwards to the experimental platform. If one side of the experimental platform is against the wall, the branch pipe led out from the main pipe can be laid along the wall to the experimental platform. For horizontal branch pipes laid along the wall, an experimental platform can be used to conceal the branch pipes. This mode is suitable for traditional laboratories, as all pipelines have been fixed on the ground and cannot be changed arbitrarily in the future.

3、 Considerations for pipeline system design

The scientifically reasonable pipeline system design of Aerospace Cohen can achieve good functions and effects at low cost.

1. Layout of pipeline system

Reasonably arrange the positions of vertical conveying, horizontal conveying, discharge pipelines, and pipe wells, lower the floor height to a lower level, minimize the number of intersections between conveying and discharge pipelines, and reduce building investment costs.

2. Maintenance issues of pipeline systems

Space must be reserved for maintenance to facilitate the repair of key components such as control valves and circuit breakers in the pipeline system.

3. Future changes in pipeline systems

Space and channels must be reserved to allow for changes and additions to public service facilities to meet future development needs.

4. Efficiency of pipeline system

Try to make various pipelines as short and economical as possible, improve efficiency, and reduce operating costs and investment costs of pipeline systems.

5. Image design of buildings

The design of the pipeline system directly affects the height and volume of the building. Laboratory modular decentralized pipe wells can be used, or centralized large pipe wells can be used. It is necessary to combine the overall image of the building with the actual needs of the laboratory building, and adopt an aesthetically pleasing and efficient pipeline system.

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