Views: 0 Author: Site Editor Publish Time: 2025-09-23 Origin: Site
Mechanical Support and Protection: It protects the lens and internal circuits from friction and scratches on the inner wall of the pipeline (especially for rusty or burr-covered metal pipelines), preventing the module from malfunctioning due to physical damage;
Precise Insertion Guidance: Through its rigid structure, the steel shell ensures the lens can extend stably along the pipeline axis, avoiding "deviation" or "jamming" caused by the module's flexibility and ensuring the stability of side-view imaging;
Inspection Range Extension: The length of the steel shell directly determines the effective inspection distance of the module when inserted into the pipeline at one time, affecting inspection efficiency.
Household/Small Industrial Short Pipelines: Such as 10-50mm diameter civil water supply pipes and hydraulic branch pipes of small equipment (usually <1m in length). These pipelines have compact spaces and may have 90° bends or multi-segment curved structures. The "low rigidity" of the 25mm short steel shell gives it excellent operational flexibility — inspectors can slightly adjust the module angle to allow the lens to pass through curved sections easily, avoiding "rigid jamming" caused by excessively long steel shells;
Inspection Near Pipeline Interfaces/Valves: In "local narrow spaces" such as pipeline interfaces and valve chambers, the short length of the 25mm steel shell reduces the interference of "redundant length" on the inspection perspective. Especially when combined with the module's 95° side-view wide angle, it can more accurately focus on key parts such as interface sealing surfaces and valve cores, avoiding lens deviation caused by collisions between the steel shell and the pipeline inner wall.
High Control Efficiency: The short steel shell is lightweight (approximately 1-2g). When inspectors hold or fix the equipment, they can quickly adjust the insertion depth and angle without additional "push assist tools";
Low Failure Rate: The short steel shell bears force more evenly. During repeated insertion and extraction, it is less likely to cause loose connections between the steel shell and the module body due to "excessive torque", reducing equipment maintenance frequency.
Industrial Long Pipelines: Such as 1-5m long metal hydraulic pipes and chemical transmission pipes (6-50mm in diameter, with few bent sections). These pipelines require covering a larger inspection range at one time to improve efficiency. The 200mm steel shell can increase the single insertion depth of the lens by 8 times compared with the 25mm version. For example, when inspecting a 3m-long pipeline, only 1-2 equipment positioning are needed to cover the entire length, avoiding efficiency loss caused by frequent equipment movement;
Inlet Section of Deep-cavity Pipelines: Some pipelines have a structure of "narrow inlet and deep interior". The 200mm steel shell can pass through the narrow inlet and extend directly to the deep interior without disassembling the equipment shell, if a 25mm steel shell is used, the shell may need to be disassembled due to insufficient insertion depth, increasing inspection costs.
Wide Inspection Range: It significantly reduces the number of equipment movements, especially suitable for scenarios where "frequent operations are inconvenient" (such as inspections of high-altitude pipelines and wellheads of buried pipelines);
Stronger Stability: The long steel shell has higher rigidity. In pipelines with small diameters, it can reduce image shaking caused by "pipeline air flow/liquid disturbance" of the lens, improving the clarity of side-view imaging.
Pipeline Length: For short pipelines ≤1m or local inspections, the 25mm steel shell is preferred; for medium-to-long straight pipelines of 1-5m, the 200mm steel shell is preferred;
Pipeline Curvature: For "multi-bend pipelines" with more than 2 bent sections and a curvature radius <50mm, the 25mm steel shell must be selected; for "low-bend pipelines" with ≤1 bent section and a curvature radius ≥100mm, the 200mm steel shell can be selected;
Operating Space: If the equipment can be moved frequently and the operating space is sufficient, the 25mm steel shell is more flexible; if the operating space is limited, the 200mm steel shell can reduce the number of movements and improve safety.
