Cooling protection device for vibration displacement sensor of crystallizer

Abstract

The utility model discloses a crystallizer vibration displacement sensor cooling protection device which is characterized in that the crystallizer vibration displacement sensor cooling protection device comprises an inner-layer protection cover and a metal hose, the inner-layer protection cover is provided with a screw joint I and a discharge port I, the inner-layer protection cover is installed on a vibration frame, and a crystallizer vibration displacement sensor is located in the inner-layer protection cover. One end of the metal hose is connected to the inner-layer protective cover through a screw connector I, the other end of the metal hose is communicated with a compressed air source, a pump body of the compressed air source is started, compressed air is injected into the inner-layer protective cover through the metal hose, and steam permeating into the inner-layer protective cover is exhausted from an exhaust port I; isolation of steam and the sensor connector is achieved, and therefore the sensor is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensor protection, and in particular relates to a cooling protection device for a crystallizer vibration displacement sensor. Background Art

[0002] The steel plant crystallizer vibration displacement sensor is installed on the side of the vibration frame, close to the exhaust fan tuyere. Therefore, during the production process, the high-temperature steam has a particularly large impact on its wiring harness connector. In order to reduce the impact of high-temperature and high-concentration steam on the sensor, the sensor wiring harness sleeve and compressed air pipe were added to directly purge the sensor, but the effect was not very ideal. After long-term use, the joints were severely corroded and aged, which had a great impact on the normal casting of the continuous casting machine.

[0003] In order for the sensor to operate normally, it must be completely isolated from the outside world, but the existing vibration frame cannot completely seal the sensor joint. On this basis, after repeated discussions, we made some efforts to completely isolate the sensor joint from the steam and made some modifications, which finally solved the problem.

[0004] The Chinese utility model patent with application number CN201020270521 published on March 30, 2011 provides a mounting mechanism for an online monitoring sensor of a continuous casting machine crystallizer vibration device, and an eddy current sensor installed at the four corners of the vibration frame of the vibration device; it includes four metal brackets, which are arranged on the base of the vibration device; the eddy current sensor is installed on the upper end of the metal bracket; the inner and outer protective covers are respectively cylindrical structures, the inner and outer protective covers are sleeved up and down, partially overlapped in the height direction, and connected with rubber connectors to form a closed sensor working chamber; wherein the inner protective cover is arranged outside the metal bracket, and the lower end of the inner protective cover is fixed on the base of the vibration device; a fixed plate as a monitoring reference surface is arranged on the upper end of the outer protective cover, and the fixed plate is connected to the vibration frame; the eddy current sensor induction head is facing the monitoring reference surface. However, the technical solution of the patent still cannot solve the above technical problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a cooling protection device for a crystallizer vibration displacement sensor which has a simple structure, is easy to use, and completely isolates the sensor joint from steam. The utility model places the crystallizer vibration displacement sensor in an inner protective cover and discharges the steam extending into the inner protective cover by injecting compressed air, thereby isolating the steam from the sensor joint and protecting the sensor.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a cooling protection device for a crystallizer vibration displacement sensor, comprising an inner protective cover and a metal hose, the inner protective cover is provided with a screw joint I and an exhaust port I, the inner protective cover is installed on a vibration frame, and the crystallizer vibration displacement sensor is located in the inner protective cover, one end of the metal hose is connected to the inner protective cover through a screw joint I, and the other end of the metal hose is connected to a compressed air source.

[0007] Furthermore, the inner protective cover is a shell structure, and the screw joint I and the discharge port I are respectively located on different surfaces of the inner protective cover.

[0008] Furthermore, the height of the screw joint I is higher than the height of the discharge port I.

[0009] Furthermore, the cooling protection device also includes an outer protective cover, which is installed on the vibration frame and located outside the inner protective cover, and a space is formed between the outer protective cover and the inner protective cover.

[0010] Furthermore, the outer protective cover is provided with a screw joint II and an exhaust port II, one end of the metal hose is connected to the outer protective cover through the screw joint II, and the other end of the metal hose is connected to the compressed air source.

[0011] Furthermore, the height of the screw joint II is higher than the height of the discharge port II.

[0012] The advantages of adopting the technical solution of the utility model are:

[0013] 1. The utility model places the crystallizer vibration displacement sensor in the inner protective cover and discharges the steam extending into the inner protective cover by injecting compressed air, thereby isolating the steam from the sensor joint and protecting the sensor.

[0014] 2. The outer protective cover of the utility model forms a primary steam isolation device, and the inner protective cover forms a secondary steam isolation device. Through the double-stage isolation system, the steam removal effect is enhanced, thereby more effectively protecting the safety of the internal sensor connector.

[0015] 3. The implementation of the cooling protection device for the crystallizer vibration displacement sensor of the utility model prolongs the life cycle of the crystallizer vibration displacement sensor, reduces the production failure rate of the continuous casting machine, improves the production rhythm of the continuous casting machine, and increases economic benefits; reduces the daily maintenance of the crystallizer vibration displacement sensor, and reduces the risk of personal safety of maintenance personnel (mainly from mechanical injuries of the vibration frame). BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the inner protective cover of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the outer protective cover of the utility model.

[0019] The markings in the above figure are respectively: 1, inner protective cover; 11, screw joint I; 12, discharge outlet I; 2, outer protective cover; 21, screw joint II; 22, discharge outlet II. DETAILED DESCRIPTION

[0020] In the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential", etc., which indicate orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation; be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] like Figure 1 , Figure 2 As shown, a cooling protection device for a crystallizer vibration displacement sensor is characterized in that it includes an inner protective cover 1 and a metal hose, the inner protective cover 1 is provided with a screw joint Ⅰ11 and an exhaust port Ⅰ12, the inner protective cover 1 is installed on a vibration frame, and the crystallizer vibration displacement sensor is located in the inner protective cover 1, one end of the metal hose is connected to the inner protective cover 1 through the screw joint Ⅰ11, and the other end of the metal hose is connected to a compressed air source, the pump body of the compressed air source is turned on, and compressed air is injected into the inner protective cover 1 through the metal hose, and the steam infiltrated into the inner protective cover 1 is discharged from the exhaust port Ⅰ12, thereby achieving isolation between the steam and the sensor joint, thereby protecting the sensor.

[0022] The inner protective cover 1 is a shell structure, the screw joint Ⅰ11 and the discharge port Ⅰ12 are respectively located on different surfaces of the inner protective cover 1, and the height of the screw joint Ⅰ11 is higher than the height of the discharge port Ⅰ12; this ensures that the compressed air enters from the top, and the steam at the top is discharged from the discharge port Ⅰ12 below under the pressure of the compressed air. The inner protective cover 1 can be set as a square structure, the discharge port Ⅰ12 is set on the bottom surface, and the screw joint Ⅰ11 is set on the top surface or the side surface, ensuring that the discharge port Ⅰ12 is located below the screw joint Ⅰ11.

[0023] The cooling protection device also includes an outer protective cover 2, which is mounted on the vibration frame and located on the periphery of the inner protective cover 1, and a space is formed between the outer protective cover 2 and the inner protective cover 1. The outer protective cover 2 is provided with a screw joint Ⅱ21 and an exhaust port Ⅱ22. One end of the metal hose is connected to the outer protective cover 2 through the screw joint Ⅱ21, and the other end of the metal hose is connected to the compressed air source. The pump body of the compressed air source is turned on, and the compressed air is injected into the space between the outer protective cover 2 and the inner protective cover 1 through the metal hose, and the steam that has penetrated between the inner and outer protective covers 2 and the inner protective cover 1 is discharged from the exhaust port Ⅱ22. The height of the screw joint Ⅱ21 is higher than the height of the exhaust port Ⅱ22. This ensures that the compressed air enters from the top, and the upper steam is discharged from the exhaust port Ⅱ22 below under the pressure of the compressed air.

[0024] First, make an inner protective cover to provide a relatively independent space for the sensor connector. Install a metal hose through the screw thread installed on the outside of the inner protective cover. The metal hose continuously injects compressed air into the space inside the inner protective cover, thereby discharging the steam that has penetrated into the inner protective cover. On this basis, using the structure of the vibration frame, add another outer protective cover to the outside of the inner protective cover. Install a metal hose through the screw thread installed on the outside of the outer protective cover. The metal hose continuously injects compressed air into the space between the outer protective cover and the inner protective cover. The outer protective cover forms a first-level steam isolation device, and the inner protective cover forms a second-level steam isolation device. Through the two-stage isolation system, the steam removal effect is enhanced, thereby more effectively protecting the safety of the internal sensor connector.

[0025] The implementation of the cooling protection device for the crystallizer vibration displacement sensor of the utility model prolongs the life cycle of the crystallizer vibration displacement sensor, reduces the production failure rate of the continuous casting machine, improves the production rhythm of the continuous casting machine, and increases the economic benefits; it reduces the daily maintenance of the crystallizer vibration displacement sensor and reduces the risk of personal safety of maintenance personnel (mainly from mechanical injuries of the vibration frame).

[0026] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A cooling protection device for a crystallizer vibration displacement sensor, characterized in that: The invention comprises an inner protective cover (1) and a metal hose. The inner protective cover (1) is provided with a screw joint I (11) and an exhaust port I (12). The inner protective cover (1) is mounted on a vibration frame, and a crystallizer vibration displacement sensor is located inside the inner protective cover (1). One end of the metal hose is connected to the inner protective cover (1) through the screw joint I (11), and the other end of the metal hose is connected to a compressed air source.

2. A cooling protection device for a crystallizer vibration displacement sensor according to claim 1, characterized in that: The inner protective cover (1) is a shell structure, and the screw joint I (11) and the discharge port I (12) are respectively located on different surfaces of the inner protective cover (1).

3. A cooling protection device for a crystallizer vibration displacement sensor according to claim 1 or 2, characterized in that: The height of the screw joint I (11) is higher than the height of the discharge port I (12).

4. A cooling protection device for a crystallizer vibration displacement sensor as claimed in claim 3, characterized in that: The cooling protection device further comprises an outer protective cover (2), which is mounted on the vibration frame and is located outside the inner protective cover (1), with a space formed between the outer protective cover (2) and the inner protective cover (1).

5. A cooling protection device for a crystallizer vibration displacement sensor as claimed in claim 4, characterized in that: The outer protective cover (2) is provided with a screw joint II (21) and an outlet II (22); one end of the metal hose is connected to the outer protective cover (2) via the screw joint II (21); the other end of the metal hose is connected to a compressed air source.

6. A cooling protection device for a crystallizer vibration displacement sensor as claimed in claim 5, characterized in that: The height of the screw joint II (21) is higher than the height of the discharge port II (22).

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