一种基于紫外激光的管道非开挖固化修复装置

Abstract

一种基于紫外激光的管道非开挖固化修复装置，涉及紫外光固化技术领域。本实用新型的目的是为了解决现有技术存在紫外光固化速度慢、光源的功率低、光束质量差的问题。在玻璃纤维软管内沿长度方向依次由355nm紫外脉冲激光器、扩束与光束整形模块和运动控制单元连接组成运动小车，拖拽钢缆的一端连接运动小车，拖拽钢缆的另一端在驱动电机的转轴上；运动控制单元控制驱动电机的转轴转动，驱动电机的转轴带动拖拽钢缆运动，从而带动运动小车由管道入口行走至出口；355nm紫外脉冲激光器产生的355nm紫外脉冲激光进入扩束与光束整形模块进行扩束和整形，输出环形光束照射至液态树脂材料，使液态树脂材料固化。本实用新型用于修复管道。

Claims

1. A trenchless pipe curing and repair device based on ultraviolet laser, the device comprising a glass fiber hose tightly attached to the inner wall of the pipe (7) and a liquid resin material coated on the inner wall of the glass fiber hose; characterized in that The device also includes a motion trolley consisting of a 355nm ultraviolet pulse laser (2), a beam expander and beam shaping module (3), and a motion control unit (4) arranged inside the glass fiber hose and connected sequentially along the length of the glass fiber hose, as well as a support component that is connected to the motion trolley at one end and slidably connected to the inner wall of the glass fiber hose at the other end, and is used to support the motion trolley in the middle of the pipe (7), and also includes a drive motor and a drag cable (6) located outside the pipe (7). One end of the drag cable (6) is connected to the moving trolley, and the other end of the drag cable (6) is on the shaft of the drive motor; the motion control unit (4) controls the shaft of the drive motor to rotate, and the shaft of the drive motor drives the drag cable (6) to move, thereby driving the moving trolley to walk from the inlet of the pipe (7) to the outlet; the 355nm ultraviolet pulse laser generated by the 355nm ultraviolet pulse laser (2) enters the beam expansion and beam shaping module (3) for beam expansion and shaping, and outputs a ring beam to irradiate the liquid resin material, so that the liquid resin material is solidified.

2. The trenchless pipe curing and repair device based on ultraviolet laser according to claim 1, characterized in that, The 355nm ultraviolet pulsed laser (2) includes a laser power supply, a resonant cavity, a pump source, a gain medium, a Q-switching module, and a frequency doubling crystal; The laser power supply provides power to the pump source. After receiving the power, the pump source provides energy to the gain medium, causing the gain medium to generate 1064nm near-infrared laser. This laser is then converted into a high-instantaneous-power pulse light by the Q-switching module and enters the frequency doubling crystal, which converts the pulse light into a 355nm ultraviolet pulse laser.

3. The UV laser based trenchless cured-in-place pipe repair apparatus of claim 1, wherein, The beam expander and beam shaping module (3) includes a beam expander and an endoscopic scattering lens; The 355nm ultraviolet pulse laser generated by the 355nm ultraviolet pulse laser (2) enters the beam expander and expands the beam to form an expanded beam. It then enters the endoscopic scattering lens to form a ring beam.

4. The UV laser based trenchless cured-in-place pipe repair apparatus of claim 1, wherein, The endoscopic scattering lens is implemented using a conical reflector.

5. The UV laser based trenchless cured-in-place pipe repair apparatus of claim 1, wherein, The supporting components include a first track support (1) and a second track support (5); The first track support (1) and the second track support (5) have the same structure. One end of the first track support (1) and the second track support (5) are connected to the head end and the end end of the moving trolley, respectively. The other end of the first track support (1) and the second track support (5) are slidably connected to the inner wall of the glass fiber hose. Both the first track support (1) and the second track support (5) are radially extendable along the glass fiber hose.

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