A sealed protective box for use in a water vapor environment

Abstract

The utility model relates to a sealed protection box based on the use in the water vapor environment belongs to the field of steel rolling technology. Including upper sealed casing and lower sealed casing, the upper sealed casing is opposite with lower sealed casing and is closed, and the both are provided with sealing element at the closing place, the upper sealed casing both sides surface is equipped with the oil inlet thread hole and the oil outlet thread hole, the oil inlet thread hole is equipped with the oil inlet pipe, the oil outlet thread hole is equipped with the oil outlet pipe, is equipped with the flow switch in the upper sealed casing, the oil inlet pipe, oil outlet pipe are connected with flow switch respectively, the upper sealed casing side surface still is equipped with wiring thread hole, is equipped with wiring pipe on the wiring thread hole, the plug line of flow switch leads out through wiring thread hole, wiring pipe and is connected with the junction box electricity, be equipped with upper dehumidification layer and lower dehumidification layer in the lower sealed casing. The flow switch is completely isolated with the outside environment in this application, makes the flow switch normal detection and timely sends out the alarm, avoids the support roll burnout, prolongs the service life of support roll.

Description

Technical Field

[0001] This utility model relates to a sealed protective box for use in a water vapor environment, belonging to the field of steel rolling technology. Background Technology

[0002] The function of the support roll is to support the steel during rolling. It is an inert roll that rotates with the work roll. It bears all the rolling force during rolling, and under poor lubrication, the Babbitt alloy inside the support roll will burn out quickly.

[0003] Currently, the support roll oil film bearings are equipped with flow switches to detect lubrication. However, during steel rolling, the cooling water for both the work roll and support roll is directly sprayed onto the flow meter, creating a very harsh moisture environment. Without sufficient protection, once moisture enters, it can generate interference and false signals inside the connector, rendering the flow switch unusable even if it is installed correctly. If lubrication becomes clogged and the flow switch fails to issue an alarm in time, the support roll will quickly burn out. Once the support roll burns out, it will also trigger an overheating alarm, causing the mill to stop. At this point, the support roll must be replaced, increasing the downtime; in some cases, the flow switch may short-circuit, blowing the fuse or tripping the circuit breaker, resulting in significant economic losses. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a sealed protective box for use in a water vapor environment, which completely isolates the flow switch from the external environment, so that the flow switch can detect normally and issue an alarm in time, avoids the support roller from burning out, and extends the service life of the support roller.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a sealed protective box for use in a water vapor environment, comprising an upper sealing shell and a lower sealing shell, wherein the upper sealing shell and the lower sealing shell are fitted together, and a sealing element is provided at the fitting point; an oil inlet threaded hole and an oil outlet threaded hole are provided on both sides of the upper sealing shell, an oil inlet pipe is screwed into the oil inlet threaded hole, and an oil outlet pipe is screwed into the oil outlet threaded hole; a flow switch is provided inside the upper sealing shell, and the oil inlet pipe and the oil outlet pipe are respectively connected to the flow switch; a wiring threaded hole is also provided on the side of the upper sealing shell, and a wiring tube is screwed into the wiring threaded hole; the plug wire of the flow switch is led out through the wiring threaded hole and the wiring tube and electrically connected to the junction box; an upper dehumidification layer and a lower dehumidification layer are provided inside the lower sealing shell.

[0006] The bottom edge of the upper sealing housing and the top edge of the lower sealing housing are respectively provided with a rim, and multiple connecting holes are opened on the rim. Screws are inserted into the connecting holes and fixedly connected with nuts, so that the upper sealing housing and the lower sealing housing are fixedly connected.

[0007] The upper dehumidification layer is a desiccant layer, and the lower dehumidification layer is a water-absorbing material layer.

[0008] A hygrometer is installed at the top of the inner wall of the upper sealed housing.

[0009] Compared with existing technologies, the advantages of this utility model are as follows: a sealed protective box for use in a water vapor environment completely isolates the flow switch from the external environment, effectively resisting external water vapor intrusion and ensuring stable and reliable operation of the flow switch. This allows for effective monitoring of the lubrication flow of the support roller, ensuring the safety of the support roller and extending its service life. It also possesses a certain self-drying function; a small amount of water vapor in the sealed cavity is removed by the desiccant and water-absorbing material. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a sealed protective box used in a water vapor environment according to an embodiment of the present invention;

[0011] In the diagram: 1. Upper sealing housing; 2. Hygrometer; 3. Wiring pipe; 4. Junction box; 5. Flow switch; 6. Oil inlet threaded hole; 7. Oil outlet threaded hole; 8. Lower sealing housing; 9. Upper dehumidification layer; 10. Lower dehumidification layer; 11. Edge. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1 As shown in this embodiment, a sealed protective box for use in a water vapor environment includes an upper sealing shell 1 and a lower sealing shell 8. The upper sealing shell 1 and the lower sealing shell 8 are mated together, and a sealing ring is provided at the mating point. Edges 11 are respectively provided on the bottom edge of the upper sealing shell 1 and the top edge of the lower sealing shell 8. Multiple connecting holes are provided on the edges 11, and screws are inserted into the connecting holes and fixed with nuts, thus ensuring a fixed connection between the upper and lower sealing shells and guaranteeing a sealing effect, forming a sealed cavity that isolates the upper and lower sealing shells from the water vapor environment. An oil inlet threaded hole 6 and an oil outlet threaded hole 7 are respectively provided on both sides of the upper sealing shell 1. An oil inlet pipe is screwed into the oil inlet threaded hole 6, and an oil outlet pipe is screwed into the oil outlet threaded hole 7. A flow switch 5 is provided inside the upper sealing shell 1, and the oil inlet pipe and the oil outlet pipe are respectively connected to the flow switch 5. The upper sealing housing 1 also has a wiring threaded hole on its side, and a wiring tube 3 is screwed onto the wiring threaded hole. The plug wire of the flow switch is led out through the wiring threaded hole and the wiring tube and electrically connected to the junction box 4. The flow switch 5 detects the flow rate of the lubricating fluid in the oil inlet pipe and then issues an alarm in time. The lower sealing housing is equipped with an upper dehumidification layer 9 and a lower dehumidification layer 10. The upper dehumidification layer 9 contains a desiccant, and the lower dehumidification layer 10 contains a water-absorbing material. When a small amount of water vapor enters the sealed protective box, the desiccant and the water-absorbing material can remove the water vapor on their own.

[0014] A hygrometer 2 is installed on the top of the inner wall of the upper sealed housing. The hygrometer 2 can directly and effectively know the internal water vapor situation and take further measures based on the humidity changes.

[0015] The oil inlet threaded hole, oil outlet threaded hole, and wiring threaded hole all use threaded structures to connect their respective pipelines, which can play a good role in isolating them from the outside world.

[0016] The upper and lower sealing housings, when fitted together, form a sealed, waterproof unit, completely isolating the flow switch from the external environment. This effectively resists external moisture intrusion, ensuring stable and reliable operation of the flow switch. This allows for effective monitoring of the support roller lubrication flow, guaranteeing the support roller's safety and extending its service life. It also possesses a certain degree of self-drying capability; any small amount of moisture in the sealed cavity is removed automatically by a desiccant and absorbent material.

[0017] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A sealed protective box for use in a water vapor environment, characterized in that: The device includes an upper sealing housing and a lower sealing housing, which are fitted together with a seal at the mating point. The upper sealing housing has an oil inlet threaded hole and an oil outlet threaded hole on both sides. An oil inlet pipe is screwed into the oil inlet threaded hole, and an oil outlet pipe is screwed into the oil outlet threaded hole. A flow switch is installed inside the upper sealing housing, and the oil inlet pipe and oil outlet pipe are respectively connected to the flow switch. A wiring threaded hole is also provided on the side of the upper sealing housing, and a wiring tube is screwed into the wiring threaded hole. The plug wire of the flow switch is led out through the wiring threaded hole and the wiring tube and electrically connected to the junction box. The lower sealing housing has an upper dehumidification layer and a lower dehumidification layer.

2. The sealed protective box for use in a water vapor environment according to claim 1, characterized in that: The bottom edge of the upper sealing housing and the top edge of the lower sealing housing are respectively provided with a rim, and multiple connecting holes are opened on the rim. Screws are inserted into the connecting holes and fixedly connected with nuts, so that the upper sealing housing and the lower sealing housing are fixedly connected.

3. A sealed protective box for use in a water vapor environment according to claim 1, characterized in that: The upper dehumidification layer is a desiccant layer, and the lower dehumidification layer is a water-absorbing material layer.

4. A sealed protective box for use in a water vapor environment according to claim 1, characterized in that: A hygrometer is installed at the top of the inner wall of the upper sealed housing.

Images