Maintenance system

Abstract

This maintenance system reduces the effort required to inspect cracks in heat exchange plates and allows for more reliable visual detection of cracks. [Solution] The system includes a darkroom 10 that blocks external light and has an entrance 52 for bringing in the heat exchange plate 2, a transport device 20 that transports the heat exchange plate 2 from outside to inside the darkroom 10 via the entrance 52, a first ultraviolet irradiation device 31 capable of irradiating the heat exchange plate 2 with ultraviolet light, a work area W provided inside the darkroom 10 and adjacent to one side with respect to the direction of travel of the transport device 20, and a first mirror 41 provided inside the darkroom 10 on the opposite side from the transport device 20, with its mirror surface facing the work area W. After the fluorescent liquid is applied to the heat exchange plate 2 by a coating robot, it is sent to a simple darkroom 70. After the simple darkroom, the heat exchange plate 2 is inverted by the transport robot and then sent to the darkroom 10.

Claims

1. A maintenance system for inspecting the heat exchange plate of a plate-type heat exchanger, in which a coating made of fluorescent liquid is formed on one side, The room has an entrance for bringing in the heat exchange plate and is a darkroom that blocks out external light, A conveying device for transporting the heat exchange plate from the outside to the inside of the darkroom via the aforementioned entrance, A robot that applies a fluorescent liquid to one side of the heat exchange plate and places it on the conveying device so that the side with the fluorescent liquid applied faces downwards, A simple darkroom that blocks out external light, A second ultraviolet irradiation device is placed inside the aforementioned simple darkroom, Equipped with, Inside the aforementioned darkroom, A first ultraviolet irradiation device capable of irradiating the heat exchange plate with ultraviolet light, A work area adjacent to one side with respect to the direction of travel of the aforementioned conveying device, The transport device and the first mirror with its mirror surface facing the work area, A system was established, The transport device transports the heat exchange plate to the simple darkroom and the darkroom in this order. The aforementioned heat exchange plate is In the aforementioned simple darkroom, ultraviolet light is irradiated by the second ultraviolet irradiation device with one side on which the coating is formed facing upwards. In the darkroom, with one side of the coating facing downwards, ultraviolet light is irradiated by the first ultraviolet irradiation device. The aforementioned robot, Upstream from the aforementioned simple darkroom, a first robot applies a fluorescent liquid to one side of the heat exchange plate that is being transported by the transport device, A second robot located downstream of the aforementioned simple darkroom inverts the heat exchange plate being transported to the transport device, Consists of A maintenance system characterized by the following features.

2. In the maintenance system described in claim 1, The system includes control means for adjusting the position and / or angle of the first mirror according to the workers present in the work area and / or the type of heat exchange plate. A maintenance system characterized by the following features.

3. In the maintenance system described in claim 2, The control means is An adjustment mechanism for adjusting the position and / or angle of the first mirror, An identification unit for identifying workers present in the aforementioned work area, A storage unit that stores posture information, which is the position and / or angle of the first mirror defined for each worker, A control unit reads posture information corresponding to the worker identified by the identification unit from the storage unit and controls the adjustment mechanism so that the position and / or angle of the posture information read by the first mirror is as follows: Equipped with A maintenance system characterized by the following features.

4. In the maintenance system described in claim 3, The control means is The system includes a display selection unit that displays posture information corresponding to the worker identified by the aforementioned identification unit, and allows the user to select one of the posture information options. The control unit controls the adjustment mechanism so that the position and / or angle of the posture information selected by the display selection unit is as described above. A maintenance system characterized by the following features.

5. In the maintenance system described in claim 2, The control means is An adjustment mechanism for adjusting the position and / or angle of the first mirror, A heat exchange plate identification unit for identifying the type of heat exchange plate, A storage unit that stores orientation information, which is the position and / or angle of the first mirror, defined for each type of heat exchange plate, A control unit reads orientation information corresponding to the type of heat exchange plate identified by the heat exchange plate identification unit from the storage unit and controls the adjustment mechanism so that the position and / or angle of the orientation information read by the first mirror is as follows: Equipped with A maintenance system characterized by the following features.

6. In the maintenance system described in claim 5, The heat exchange plate has a corrugated cross-section and a row of irregularities in which multiple linearly extending irregularities are arranged side by side. The memory unit stores, as orientation information, the angle of the first mirror along the direction in which the rows of protrusions and recesses are arranged when the heat exchange plate is viewed from above. A maintenance system characterized by the following features.

7. In the maintenance system described in claim 1, The darkroom is equipped with a second mirror located inside the darkroom, The second mirror is, The mirror surface faces the opposite direction to the aforementioned direction of travel. It is located downstream of the first mirror in the aforementioned direction of travel and above the conveying device. A maintenance system characterized by the following features.

8. In the maintenance system described in claim 1, The darkroom has an outlet for transporting the heat exchange plate from the inside to the outside. The aforementioned transport device is The heat exchange plate is transported from the inside to the outside via the aforementioned outlet. It has a first branch and a second branch that branch outside the darkroom, The heat exchange plate can be transported by switching to either the first branching section or the second branching section. A maintenance system characterized by the following features.

9. In the maintenance system described in claim 8, Inside the darkroom, there is an operating device for instructing the switching to the first branch or the second branch. The transport device switches to the first branch or the second branch based on the operation of the operating device. A maintenance system characterized by the following features.

10. In the maintenance system described in claim 9, The operating device is located in the work area. A maintenance system characterized by the following features.

11. In the maintenance system described in claim 1, The first ultraviolet irradiation device is located above the transport device, above the first mirror, and is movable parallel to the direction of travel of the transport device. A maintenance system characterized by the following features.

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