With the rapid development of the market, the demand for ventilation pipe is higher and higher. In various industries, it has become an essential part of people's life. The layout of the processing of the ventilation pipeline system is flat and beautiful, simple and compact, and the installation, operation, maintenance and other factors determine the rationality of the pipeline system, which should meet the requirements of ventilation and smoke exhaust in case of fire. So what are the general steps of the system layout for the installation of ventilation ducts? What should we pay attention to? Now let's listen to the technical personnel of ventilation pipe processing?
The following points shall be followed for the system layout of ventilation pipe processing:
1、 Layout form of system network
In order to facilitate the management and operation regulation of the pipe network, the pipe network system should not be too large. When there are multiple branches in the same system, the branches should be controlled by levels, and the suction points of the same system should not be too many. It is necessary to pay attention to the pressure balance of each branch pipe. There are three types of pipe network layout: main pipe, individual pipe and ring pipe.
2、 Principles of layout
1. Laying principle of ventilation pipe installation system
The pipeline shall be installed in a clear and concealed manner, and generally installed in an open manner. Because the open installation is convenient for maintenance, the concealed installation method shall be considered when the open installation is not available. The pipes shall be arranged in rows as far as possible, and shall be laid parallel to the wall or column as far as possible. If the pipe diameter is large or the insulation shall be arranged on the wall side. Generally, when two pipelines are arranged in parallel, the spacing shall not be less than 100-200mm.
2. Connection principle of ventilation pipe processing system
In the pipeline with welding as the main connection method, a sufficient number of flange connections shall be set, and in the pipeline with thread as the main connection method, a sufficient number of movable joints shall be set, which is cheaper than installation, disassembly and maintenance.
3. The support principle of the processing system of the ventilation pipe is that the pipe should not be directly supported on the equipment with the valve, and the support or hanger should be set separately. The weld position of the pipe should be at the place where the construction is convenient or the stress is small, and the weld should not be at the support and the distance should not be less than 200 mm.
4. If the properties of different dust containing gases are different, the subsection treatment of purification should be different.
When there are many pollution sources, they can be concentrated in one purification system or divided into several systems. However, when pollutants are mixed, it will cause combustion, explosion hazard, gases with different temperature and humidity. After mixing, condensation, dust or gas properties in the pipeline will be different, which will affect the recovery or purification efficiency.
5. In the layout of the ventilation pipe processing system, it is necessary to ensure that the leakage of the whole system is small and that the dust collector has sufficient air volume.
6. The layout of the ventilation pipe processing system should reduce the resistance.