Split type oil film bearing water inlet monitoring device

Abstract

The utility model discloses a split type oil film bearing water inlet monitoring device, and belongs to the technical field of oil film bearings. The monitoring pipes are vertically arranged on oil return branch pipes of oil film bearing seats of the rolling mill respectively, the transparent observation windows are arranged on the pipe walls below the monitoring pipes, the water outlets are formed in the bottom ends of the monitoring pipes, the valves are arranged on the water outlets, and the monitoring pipes are arranged at the bottoms of horizontal pipe sections of the oil return branch pipes in series. Oil in the oil return branch pipe passes through the horizontal pipe section of the oil return branch pipe and enters the monitoring pipe from the oil inlet of the monitoring pipe for oil-water separation, so that water is deposited in the area, below the transparent observation window, of the monitoring pipe; a semicircular blocking piece is arranged below the inner cavity of the horizontal pipe section and located between the oil liquid inlet of the monitoring pipe and the oil return header pipe, and the water inlet condition of each oil film bearing seat can be rapidly recognized in a multi-rack rolling mill, and the cost is controllable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil film bearing technical field, concretely relates to a split type oil film bearing water inlet monitoring device. BACKGROUND

[0002] In the hot rolling mill production line, the oil film bearing is in the harsh working condition environment of high humidity and much cooling water spraying for a long time. The external cooling water enters the oil of the oil film bearing due to the failure of water seal wear, the cumulative assembly tolerance of sealing assembly or the deformation of dynamic sealing interface, the oil containing water enters the oil tank through the horizontal pipe section of the oil return branch pipe and the oil return main pipe, and the oil tank supplies the oil containing water to the oil film bearing, forming a vicious cycle. The water entering the oil will cause multiple hazards: first, it destroys the integrity of the oil film, reduces the viscosity of the lubricating oil, and doubles the risk of boundary lubrication of the bearing friction pair; second, it accelerates the oxidation of base oil to generate acidic substances to corrode copper alloy cages and other precision components; third, it induces lubricating oil foaming, accelerates oil oxidation, causes oil film bearing damage or backup roll seizure and other serious accidents.

[0003] In the prior art, although capacitive or infrared moisture sensors are generally configured in the oil tank, they can only detect the water content of the mixed oil of the whole system and cannot locate the specific water inlet oil film bearing seat in the multi-stand rolling mill. Although the online oil monitoring system can realize rack-level monitoring, the equipment cost is high, which easily leads to a sharp increase in the operating cost of the steel plant. In addition, the traditional maintenance relies on regular sampling and inspection by manual work, which has a detection lag period, and during this period, the rusting and sticking of the backup roll cone sleeve caused by water inlet of a single bearing seat can cause unplanned downtime loss.

[0004] Therefore, there is a need for a split type oil film bearing water inlet monitoring device that can quickly identify the water inlet condition of each oil film bearing seat in a multi-stand rolling mill and has controllable cost. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a split type oil film bearing water inlet monitoring device that can quickly identify the water inlet condition of each oil film bearing seat in a multi-stand rolling mill and has controllable cost.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] The utility model discloses a split type oil film bearing water inlet monitoring device, including the monitoring pipe that sets up respectively in the oil return branch pipe of each oil film bearing seat of rolling mill's vertical, set up the transparent observation window on the lower pipe wall of monitoring pipe, set up the drain outlet at the bottom of monitoring pipe and set up the valve at the drain outlet, wherein, monitoring pipe is in series in the bottom of the horizontal pipe section of oil return branch pipe, and the oil liquid in the oil return branch pipe enters its inside through the oil liquid inlet of monitoring pipe by the horizontal pipe section and carries out oil water separation, and makes water deposit in the lower area of monitoring pipe and set up the transparent observation window, the inner chamber below the horizontal pipe section is provided with semicircle baffle, and the semicircle baffle is between the oil liquid inlet of monitoring pipe and the oil return manifold.

[0008] The further improvement of the technical scheme of the utility model lies in that the monitoring pipe comprises a vertical pipe arranged in series at the bottom of the horizontal pipe section of the oil return branch pipe, and the upper end port of the vertical pipe connected with the horizontal pipe section is an oil liquid inlet, and the semicircle baffle is between the oil liquid inlet of the vertical pipe and the oil return manifold.

[0009] The further improvement of the technical scheme of the utility model lies in that the monitoring pipe comprises a vertical pipe arranged in series at the bottom of the horizontal pipe section of the oil return branch pipe through a U-shaped pipe, wherein the vertical pipe is connected with the bottom center position of the U-shaped pipe.

[0010] The further improvement of the technical scheme of the utility model lies in that the two ports of the upper end of the U-shaped pipe are an oil liquid inlet and an oil liquid outlet in sequence along the oil return direction, and the semicircle baffle is between the oil liquid inlet and the oil liquid outlet of the U-shaped pipe.

[0011] The further improvement of the technical scheme of the utility model lies in that a spiral guide vane is welded around the inner surface of the pipe wall at the oil liquid inlet of the U-shaped pipe; and the spiral guide vane comprises a plurality of continuous spiral metal sheets.

[0012] The further improvement of the technical scheme of the utility model lies in that the transparent observation window is arranged on the lower pipe wall of the vertical pipe and vertically extends to the bottom end thereof, and the transparent observation window is provided with a scale line on the outer wall thereof along the length direction thereof.

[0013] The further improvement of the technical scheme of the utility model lies in that the drain outlet provided with the valve is arranged at the bottom end port of the vertical pipe.

[0014] The further improvement of the technical scheme of the utility model lies in that the transparent observation window is made of polycarbonate material.

[0015] Thanks to the above technical scheme, the utility model has the following technical progress:

[0016] The split type oil film bearing water inlet monitoring device can quickly identify the water inlet conditions of each oil film bearing seat in a multi-stand rolling mill, effectively reduces the equipment failure risk caused by water entering the oil tank, and has a simple structure and effectively controls the manufacturing cost.

[0017] The utility model discloses a monitoring pipe is arranged at the bottom of the horizontal pipe section of the oil return branch pipe, can effectively realize oil -water separation, and the water deposits at the bottom of the monitoring pipe, and the staff can directly observe the water storage of the area below the monitoring pipe through the transparent observation window arranged in the area below the monitoring pipe, thereby the water inlet condition of each bearing seat is monitored in real time, and when the water inlet exceeds a certain limit, the staff can open the valve on the drain outlet at the bottom end of the monitoring pipe, and the water is drained in time, and the normal operation of the bearing is prevented from being influenced.

[0018] The utility model discloses a semicircle baffle is arranged below the inner chamber of the horizontal pipe section, and the semicircle baffle is located between the oil inlet of the monitoring pipe and the oil return main pipe, allows a part of oil liquid that the oil return branch pipe transmits to pass from the top of the semicircle baffle, participates in the oil film bearing work normally through the oil return main pipe, another part of oil liquid can enter its inside and separates oil and water because of the block of the semicircle baffle, and the water deposits in the area below that is equipped with the transparent observation window, and simultaneously, because the semicircle baffle blocks in the inner chamber of the horizontal pipe section, it is more helpful to realize oil -water separation.

[0019] The utility model discloses a monitoring pipe includes the vertical pipe that is set in the horizontal pipe section bottom of oil return branch pipe through the U-shaped pipe series connection, and sets up spiral flow guide blade at one side oil inlet of U-shaped pipe, and the setting of U-shaped pipe avoids the retention of oil liquid after separation, improves oil liquid utilization rate, reduces maintenance demand, and simultaneously spiral flow guide blade cooperates with U-shaped pipe, prolongs the flow time of oil -water mixture, and simultaneously can produce centrifugal effect to oil liquid, promotes water phase sedimentation efficiency. ACCURACY OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of monitoring device in the utility model embodiment 1.

[0021] Figure 2 It is the structure schematic diagram of monitoring device in the utility model embodiment 2.

[0022] Wherein, 1, oil return branch pipe, 1-1, horizontal pipe section, 2, transparent observation window, 3, drain outlet, 4, valve, 5, U-shaped pipe, 6, vertical pipe, 7, spiral flow guide blade, 8, oil return main pipe, 9, semicircle baffle. SPECIFIC IMPLEMENTATION

[0023] The utility model will be further explained in detail in conjunction with the embodiment:

[0024] Embodiment 1

[0025] As Figure 1As shown, the embodiment provides a split type oil film bearing water inlet monitoring device, which comprises a monitoring pipe, a transparent observation window 2, a drain port 3 and a valve 4 vertically arranged on the oil return branch pipe 1 of each oil film bearing seat of the rolling mill, that is, the oil return branch pipe 1 of each oil film bearing seat of the rolling mill is provided with a monitoring pipe, the transparent observation window 2 is arranged on the lower wall of the monitoring pipe, the drain port 3 is arranged at the bottom end of the monitoring pipe, and the valve 4 is arranged on the drain port 3. The oil return branch pipe 1 is connected with the oil return main pipe 8 through the horizontal pipe section 1-1 thereof, the oil return direction is from the oil return branch pipe 1 to the oil return main pipe 8, and the monitoring pipe is serially arranged at the bottom of the horizontal pipe section 1-1 of the oil return branch pipe 1. Since the monitoring pipe is vertically arranged, that is, the upper end of the monitoring pipe is connected with the bottom of the horizontal pipe section 1-1 of the oil return branch pipe 1.

[0026] When the oil contains water, the oil in the oil return branch pipe 1 enters the monitoring pipe through the oil inlet of the monitoring pipe from the horizontal pipe section 1-1 thereof to separate oil and water, so that the water is deposited in the area below the monitoring pipe provided with the transparent observation window 2. The staff can regularly observe the water accumulation in the area below the monitoring pipe through the transparent observation window 2, so as to directly judge the water inlet amount of each bearing seat, so as to timely replace the in-machine backup roll when the water inlet amount is too large to affect the use.

[0027] Further, the inner cavity of the horizontal pipe section 1-1 of the oil return branch pipe 1 is provided with a semicircular baffle 9 between the oil inlet of the monitoring pipe and the oil return main pipe 8, that is, the semicircular baffle 9 only blocks the lower inner cavity of the horizontal pipe section 1-1, does not block the upper inner cavity of the horizontal pipe section 1-1, allows a part of the oil transmitted by the oil return branch pipe 1 to pass from the upper side of the semicircular baffle 9, participates in the oil film bearing work through the oil return main pipe 8, and another part of the oil is blocked by the semicircular baffle 9, enters the monitoring pipe through the oil inlet of the monitoring pipe, separates oil and water, and deposits the water in the area below the monitoring pipe provided with the transparent observation window 2. At the same time, the semicircular baffle 9 in the inner cavity of the horizontal pipe section 1-1 is helpful to realize the separation of oil and water.

[0028] Further, the monitoring pipe comprises a vertical pipe 6 directly serially arranged at the bottom of the horizontal pipe section 1-1 of the oil return branch pipe 1, that is, the vertical pipe 6 is directly connected with the bottom wall of the horizontal pipe section 1-1 of the oil return branch pipe 1 through the upper end port thereof, so that the upper end port of the vertical pipe 6 connected with the horizontal pipe section 1-1 is the oil inlet, and the semicircular baffle 9 is located between the oil inlet of the vertical pipe 6 and the oil return main pipe 8.

[0029] When the water in the monitoring tube is less deposited, the oil in the horizontal pipe section 1-1 of the oil return branch pipe 1 only has a small amount of water mixed at the bottom, therefore, the semi-circular baffle 9 can prevent the water-containing oil from directly flowing into the oil return main pipe 8, and the part of the oil in the oil return branch pipe 1 that does not contain water passes through the horizontal pipe section 1-1 from above the semi-circular baffle 9, participates in the oil film bearing work normally through the oil return main pipe 8, and the other part of the oil containing water is blocked by the semi-circular baffle 9, enters the inside of the vertical pipe 6 through the oil inlet of the vertical pipe 6 by gravity, and is separated from water, so that the water is deposited in the lower area of the vertical pipe 6. The transparent observation window 2 is arranged on the lower pipe wall of the vertical pipe 6 and vertically extends to the bottom end thereof, and the transparent observation window 2 is provided with scale lines on the outer wall thereof along the length direction thereof. Preferably, the transparent observation window 2 is made of oil-resistant polycarbonate material. The staff can read the water accumulation in the lower area of the vertical pipe 6 through the scale lines on the transparent observation window 2, and master the water accumulation situation.

[0030] The drain port 3 provided with the valve 4 is arranged at the bottom end port of the vertical pipe 6, and the drain port 3 can be controlled to release or close the vertical pipe 6 through the valve 4. When the water is deposited in the monitoring tube and the oil cannot enter the vertical pipe 6, the oil in the oil return branch pipe 1 passes through the horizontal pipe section 1-1 from above the semi-circular baffle 9, participates in the oil film bearing work normally through the oil return main pipe 8, and at this time, the staff can control the drain port 3 through the valve 4 to release the water in the vertical pipe 6 in time, so as to prevent a large amount of water from flowing into the oil tank.

[0031] Embodiment 2

[0032] As shown in FIG. 2, the water inlet monitoring device for the split oil film bearing provided in the embodiment comprises a monitoring tube, an oil return branch pipe 1, an oil return main pipe 8, a semi-circular baffle 9, a vertical pipe 6, a U-shaped pipe 5, a spiral guide vane 7, and a transparent observation window 2. Figure 2 The difference between the embodiment and the embodiment 1 is that:

[0033] The monitoring tube comprises the vertical pipe 6 connected in series through the U-shaped pipe 5 at the bottom of the horizontal pipe section 1-1 of the oil return branch pipe 1, wherein the vertical pipe 6 is connected with the center position of the bottom of the U-shaped pipe 5, the two ports of the upper end of the U-shaped pipe 5 are the oil inlet and the oil outlet in the oil return direction in sequence, that is, the port away from the oil return main pipe 8 is the oil inlet, the port close to the oil return main pipe 8 is the oil outlet, and the semi-circular baffle 9 is located between the oil inlet and the oil outlet of the U-shaped pipe 5.

[0034] In order to further improve the sedimentation efficiency of the water phase, the inner surface of the pipe wall at the oil inlet of the U-shaped pipe 5 is circumferentially welded with the spiral guide vane 7, so as to generate a centrifugal effect on the oil and ensure the full sedimentation of the water phase. Specifically, the spiral guide vane 7 comprises a plurality of continuous spiral metal sheets.

[0035] When the water in the monitoring pipe is less deposited, the oil in the horizontal pipe section 1-1 of the oil return branch pipe 1 only has a small amount of water mixed at the bottom, therefore, the semi-circular baffle 9 can prevent the water-containing oil from directly flowing into the oil return main pipe 8, at this time, part of the oil without water in the oil return branch pipe 1 passes through the semi-circular baffle 9 from above, participates in the oil film bearing work normally through the oil return main pipe 8, and the other part of the water-containing oil is blocked by the semi-circular baffle 9, enters the U-shaped pipe 5 from the oil inlet of the U-shaped pipe 5, then is separated from water, the water is deposited in the lower area of the vertical pipe 6, and the oil not entering the vertical pipe 6 passes through the oil outlet of the U-shaped pipe 5 and participates in the oil film bearing work normally through the oil return main pipe 8. The transparent observation window 2 is arranged on the lower pipe wall of the vertical pipe 6 and vertically extends to the bottom end, and the transparent observation window 2 is provided with scale lines on the outer side wall in the length direction, preferably, the transparent observation window 2 is made of oil-resistant polycarbonate material. The staff can read the water amount in the lower area of the vertical pipe 6 through the scale lines on the transparent observation window 2 to master the water accumulation situation.

[0036] The drain port 3 provided with the valve 4 is arranged at the bottom end port of the vertical pipe 6. When the water is deposited in the monitoring pipe and the oil cannot pass through the U-shaped pipe 5, the oil in the oil return branch pipe 1 passes through the semi-circular baffle 9 from above, participates in the oil film bearing work normally through the oil return main pipe 8, at this time, the staff can control the drain port 3 to release the water in the monitoring pipe in time through the valve 4 to prevent a large amount of water from flowing into the oil tank.

[0037] Compared with example 1, the setting of the U-shaped pipe 5 in example 2 avoids the residence of the separated oil, improves the oil utilization rate, reduces the maintenance requirement, and the spiral guide vane 7 cooperates with the U-shaped pipe 5 to prolong the flow time of the oil-water mixture and can produce centrifugal effect on the oil to improve the water phase sedimentation efficiency.

[0038] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A split oil film bearing water ingress monitoring device, characterized by: The monitoring pipe is arranged on the oil return branch pipe (1) of each oil film bearing seat of the rolling mill in vertical direction, the transparent observation window (2) is arranged on the lower pipe wall of the monitoring pipe, the drain port (3) is arranged at the bottom end of the monitoring pipe, and the valve (4) is arranged on the drain port (3).

2. The water entry monitoring device for split oil film bearing according to claim 1, characterized in that: The monitoring pipe includes a vertical pipe (6) arranged at the bottom of the horizontal pipe section (1-1) of the oil return branch pipe (1) in series, the upper end port of the vertical pipe (6) connected with the horizontal pipe section (1-1) is the oil liquid inlet, and the semicircular baffle (9) is located between the oil liquid inlet of the vertical pipe (6) and the oil return main pipe (8).

3. The water entry monitoring device for split oil film bearing according to claim 1, characterized in that: The monitoring pipe includes a vertical pipe (6) arranged at the bottom of the horizontal pipe section (1-1) of the oil return branch pipe (1) in series, the upper end port of the vertical pipe (6) connected with the horizontal pipe section (1-1) is the oil liquid inlet, and the semicircular baffle (9) is located between the oil liquid inlet of the vertical pipe (6) and the oil return main pipe (8).

4. The split oil film bearing water entry monitoring device of claim 3, wherein: The monitoring pipe includes a vertical pipe (6) arranged at the bottom of the horizontal pipe section (1-1) of the oil return branch pipe (1) in series through the U-shaped pipe (5), wherein the vertical pipe (6) is connected with the bottom center position of the U-shaped pipe (5).

5. The split oil film bearing water entry monitoring device of claim 4, wherein: The two ports of the upper end of the U-shaped pipe (5) are the oil liquid inlet and the oil liquid outlet in sequence along the oil return direction, and the semicircular baffle (9) is located between the oil liquid inlet and the oil liquid outlet of the U-shaped pipe (5).

6. A split oil film bearing water entry monitoring device according to any one of claims 2 to 5, wherein: The inner surface of the pipe wall at the oil liquid inlet of the U-shaped pipe (5) is welded with the spiral flow guide vane (7) around; the spiral flow guide vane (7) includes a plurality of continuous spiral metal sheets.

7. The split oil film bearing water-in monitoring device of claim 6, wherein: The transparent observation window (2) is arranged on the lower pipe wall of the vertical pipe (6) and vertically extends to the bottom end thereof, and the transparent observation window (2) is provided with a scale line on the outer wall thereof along the length direction thereof.

8. The split oil film bearing water-in monitoring device of claim 7, wherein: The drain port (3) provided with the valve (4) is arranged at the bottom end port of the vertical pipe (6). The transparent observation window (2) is made of polycarbonate material.

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