Differences and applications between pneumatic cable blowing machines and hydraulic cable blowing machines
In modern communication networks, the laying of optical cables is a vital link. The cable blowing machine is a device specially used for laying optical cables in underground pipelines. It uses high-pressure airflow to push the optical cable forward quickly in the pipeline, realizes trenchless laying, improves construction efficiency and protects the optical cable. It is widely used in the construction of urban communication networks. Cable blowing machines are mainly divided into pneumatic and hydraulic types. This article will explore the differences and applications of these two types of equipment.
There are differences in working principles and performance characteristics between pneumatic and hydraulic equipment.
1. Differences in working principles
Pneumatic cable blowing machine: Based on the principle of aerodynamics, it uses the high-pressure airflow generated by the air compressor as the power source. During the laying process, the mechanical cable pushing equipment first pushes the optical cable into the pre-laid pipeline, and then the air compressor sends a strong airflow into the pipeline through the sealed chamber of the air blowing machine. This high-speed airflow forms a drag force on the surface of the optical cable, pushing the optical cable forward quickly in the pipeline. Pneumatic cable blowing machines have the advantages of simple structure, convenient operation, and rapid response, and are particularly suitable for short-distance, small-diameter optical cable laying tasks.
Hydraulic cable blowing machines: use liquid as the working medium and push the optical cable through the pressure transmission of the hydraulic system. It is generally composed of three parts: the machine (host), the power system and the hydraulic control system. The hydraulic cable blowing machine drives the mechanical device through the high-pressure liquid generated by the hydraulic pump to push the optical cable into the pre-laid pipeline. The hydraulic system has the characteristics of large thrust, good stability, and high control accuracy, and is particularly suitable for long-distance, large-diameter optical cable laying tasks. In addition, the hydraulic cable blowing machine can also adapt to more complex construction environments, such as special terrains such as mountainous areas and the seabed.
2. Differences in performance characteristics
2.1 Thrust and speed: In terms of thrust and speed, hydraulic cable blowers are significantly better than pneumatic ones. The hydraulic system can provide continuous and stable high-pressure thrust to ensure that the optical cable can overcome various resistances and move forward quickly during the laying process. Although the pneumatic cable blower can also provide a certain thrust, it is relatively limited compared to the hydraulic system and is more suitable for light-load and short-distance laying tasks. In terms of speed, hydraulic cable blowers usually have a higher pushing speed, which can significantly improve construction efficiency.
2.2 Stability and precision: Hydraulic cable blowers also perform well in stability and precision. The hydraulic system uses hydraulic control elements to accurately adjust the thrust to ensure that the optical cable can maintain a stable posture and speed during the laying process. At the same time, the feedback mechanism of the hydraulic system can respond to changes in the construction environment in a timely manner, dynamically adjust the thrust, and ensure the accuracy and reliability of the laying of the optical cable. In comparison, the pneumatic cable blower is slightly inferior in stability and precision, but it can still be competent in some occasions where precision requirements are not high.
2.3 Maintenance and cost: In terms of maintenance and cost, pneumatic cable blowers have lower maintenance costs due to their simple structure and fewer components. The maintenance and upkeep of key components such as air compressors are relatively easy and low cost. However, hydraulic cable blowers have relatively high maintenance and upkeep costs due to their complex structure and numerous components. However, in the long run, the efficiency and stability of hydraulic cable blowers can bring higher economic benefits and reduce overall construction costs.
The following are the application areas of the two types of cable blowing machines:
Pneumatic cable blowing machine: It is light and easy to operate. It is widely used in urban roads, residential areas, industrial parks and other areas with limited space and difficult construction. In these occasions, the pneumatic cable blowing machine can quickly respond to construction needs and quickly complete the laying of optical cables. In addition, pneumatic cable blowing machines also play an important role in some temporary and emergency optical cable laying tasks. For example, after a natural disaster, in areas where communication networks need to be quickly restored, pneumatic cable blowing machines can be quickly put into use to provide strong support for rescue work.
Hydraulic cable blowing machine: It is more suitable for long-distance and large-diameter optical cable laying tasks. In projects such as highways, railways, large buildings, and submarine optical cables, hydraulic cable blowing machines can ensure the smooth laying of optical cables with their powerful thrust and stable performance. In addition, hydraulic cable blowing machines are also suitable for some occasions with high precision requirements, such as laying optical cables in mountainous areas and laying submarine optical cables. In these occasions, the hydraulic cable blowing machine can achieve accurate control of thrust and dynamic response to the construction environment, ensuring the accuracy and reliability of optical cable laying.
In actual applications, users should choose the appropriate type of cable blowing machine according to specific construction needs and conditions to ensure the smooth progress of optical cable laying.
TFN launches the T700CQ pneumatic cable blowing machine and the T700CY hydraulic cable blowing machine, which are easy to use and highly efficient, and are designed to solve the optical cable laying tasks in different scenarios. T700CQ is suitable for 96-core and below duct optical cables and 6mm and above diameter micro optical cables, and air-blown 10mm micro ducts; T700CY can lay heavy armored optical cables and cable air-blown 8-12mm micro ducts, and can handle larger-scale optical cable laying tasks.
If you are interested in TFN cable blowing machine, please contact TFN sales team:
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