Oil liquid defoaming device

Abstract

The present application provides a kind of oil liquid defoaming device, including defoaming cylinder, filter element is installed inside, so that defoaming cylinder is divided into gas cavity and liquid cavity;Gas cavity is equipped with oil liquid inlet, its top is also equipped with float switch, for venting;Filter element is equipped with multiple cross-section wedge-shaped defoaming hole, its narrow end is connected with gas cavity, flared end is connected with liquid cavity.Oil liquid flows into liquid cavity through filter element, bubble cannot pass through filter element, only can enter liquid cavity through defoaming hole.Bubble is touched when passing through the edge of defoaming hole, is broken to cause rupture, simultaneously, also can cause rupture by the extrusion of bubble hole, to play the role of defoaming, facilitate subsequent oil liquid to carry out water smoothly, improve water removal effect.The wedge-shaped structure of defoaming hole is used to enlarge flow, improve defoaming speed.After bubble rupture, the air pressure in defoaming cylinder will increase, so as to open float switch, from defoaming cylinder to vent outward.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil purification, and particularly relates to an oil bubble removing device. BACKGROUND

[0002] When a pre-finishing rolling mill works, under the influence of temperature, pressure, friction and the like, sealing failure occurs, leading to high-pressure water of a cooling roller and a guide device entering a rolling mill roll box, so that lubricating oil of a rolling mill thin oil station is emulsified and deteriorated, thereby causing a finishing mill equipment failure. Therefore, an oil purification device is generally arranged to remove impurities and water in oil, so that the oil meets the use requirements.

[0003] Since a large amount of bubbles is generated in the circulating use process of emulsified lubricating oil, the bubble wall is in an oil-water mixed state, and in the subsequent water removal process, it is difficult to remove the bubbles, and it is also difficult to remove the water in the bubble wall, so that the oil water removal effect is poor.

[0004] Therefore, how to overcome the above defects has become a problem to be solved by the person skilled in the art. SUMMARY

[0005] To solve the technical problems in the background art, the present application discloses an oil bubble removing device.

[0006] The present application provides an oil bubble removing device, which comprises a bubble removing cylinder, wherein a filter element is arranged in the bubble removing cylinder, so as to divide the bubble removing cylinder into a gas cavity and a liquid cavity;

[0007] The gas cavity is provided with an oil inlet, and a float switch is further arranged at the top of the gas cavity for exhausting air.

[0008] The filter element is provided with a plurality of bubble removing holes in a wedge shape in cross section, wherein the narrow end of the bubble removing hole is connected with the gas cavity, and the wide end of the bubble removing hole is connected with the liquid cavity.

[0009] The oil flows into the liquid cavity through the filter element, and the bubbles can only enter the liquid cavity through the bubble removing holes. When the bubbles pass through the bubble removing holes, the bubbles are broken due to the contact with the edges of the bubble removing holes, and the bubbles are also broken due to the extrusion of the bubble holes, so as to play a role of defoaming, facilitate the subsequent oil water removal, and improve the water removal effect. The wedge-shaped structure of the bubble removing hole is used to enlarge the flow and improve the defoaming speed. After the bubbles are broken, the air pressure in the bubble removing cylinder is increased, so as to open the float switch and exhaust air from the bubble removing cylinder.

[0010] When the amount of water in the oil is large, resulting in a large amount of bubbles, some bubbles may not be broken, therefore, further improvement is that the filter core is provided with two layers in parallel, which are respectively a first filter core and a second filter core; the first filter core is provided with a wedge-shaped first bubble removal hole; the second filter core is provided with a wedge-shaped second bubble removal hole; the first bubble removal hole and the second bubble removal hole constitute a bubble removal hole; the first filter core and the second filter core are relatively slidable, so that the first bubble removal hole and the second bubble removal hole are staggered. When the amount of bubbles is large, the first filter core and the second filter core are staggered, and the bubbles entering the second bubble removal hole will touch the edge of the second bubble removal hole; and when the bubbles enter the second bubble removal hole, the entrance of the second bubble removal hole is partially blocked by the first filter core, thereby reducing the entrance area. Therefore, the first bubble hole and the second bubble hole are staggered, which can achieve the purpose of secondary rupture and ensure complete elimination of bubbles.

[0011] The area of the filter core directly affects the bubble removal efficiency, based on which, further design is that a support plate is arranged in the bubble removal cylinder; the filter core is inserted into the bubble removal cylinder obliquely, and the lower end thereof abuts against the support plate. The filter core is installed in the form of insertion, which is also convenient for dismounting the filter core.

[0012] The specific structure of the float switch is that a valve body provided with a float is arranged at the top of the air cavity; a first spherical surface corresponding to the float is arranged in the valve body; the float is attached to the first spherical surface to realize sealing and block the inlet of the valve body.

[0013] Temperature directly affects the breaking effect of bubbles, based on which, further improvement is that a heater is arranged at the oil inlet. The heater increases the temperature of the oil and also increases the temperature of the bubbles, so that the molecules are more active and unstable, resulting in that the bubbles are more likely to break. Moreover, the heater also increases the amount of water converted into water vapor, so that more water can be converted into water vapor and discharged from the bubble removal cylinder.

[0014] If the temperature of the heater is too high, the oil may be carbonized and deteriorated, and if the temperature is too low, the evaporation amount of water is small, based on which, further design is that the heating temperature of the heater is set to 50-60℃.

[0015] When the oil in the bubble removal cylinder is too much, it is easy to flow out from the float switch, based on which, further design is that a first liquid level controller is arranged at the position close to the top of the bubble removal cylinder. When the liquid level in the bubble removal cylinder reaches the first liquid level controller, the oil supply to the bubble removal cylinder is stopped.

[0016] Since the bubbles are accumulated, the oil level does not reach the first liquid level controller, but the bubbles are accumulated upwards along the filter core and exceed the height of the first liquid level controller, so that the bubbles directly overflow from the float switch, and based on this, the further improvement is that the second liquid level controller is installed at the position close to the top of the valve body. In this way, when the bubbles enter the float switch, they overflow upwards from the side of the float and trigger the second liquid level controller, so as to stop the oil from being fed into the bubble removing cylinder.

[0017] When the bubbles trigger the second liquid level controller, part of the bubbles still overflow from the valve body, so the further improvement solves this problem, specifically, the second spherical surface opposite to the float is further arranged at the top of the valve body. When the bubbles overflow upwards, the float is lifted upwards. When the bubbles trigger the second liquid level controller, the float is attached to the second spherical surface to block the outlet of the valve body, so as to avoid the bubbles from overflowing from the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0018] The application will be further described below in combination with the drawings and embodiments.

[0019] Figure 1 is a structural schematic diagram of the application;

[0020] Figure 2 is Figure 1 is an enlarged view of A in FIG. 4;

[0021] Figure 3 is a structural schematic diagram of the filter core;

[0022] Figure 4 is a structural schematic diagram of the staggered arrangement of the filter core;

[0023] In the drawings: 1, bubble removing cylinder; 2, filter core; 3, first filter core; 4, second filter core; 5, valve body; 6, float; 7, heater; 8, first liquid level controller; 9, second liquid level controller; 10, oil pump; 11, air cavity; 12, liquid cavity; 13, oil inlet; 14, support plate; 21, bubble removing hole; 31, first bubble removing hole; 41, second bubble removing hole; 51, first spherical surface; 52, second spherical surface. DETAILED DESCRIPTION

[0024] The application will be further described below in combination with the drawings and embodiments.

[0025] Example one:

[0026] As Figure 1As shown, the present application is a kind of oil liquid defoaming device, comprising a defoaming cylinder 1. Two parallel arranged baffles are arranged in the defoaming cylinder 1, which divides the inner cavity of the defoaming cylinder 1 into gas cavity 11 and liquid cavity 12. The through slot is formed between the baffles for connecting the gas cavity 11 and the liquid cavity 12. The defoaming cylinder 1 is also provided with a filter core 2, which is made of glass fiber, clamped with the baffles and covers the through slot.

[0027] The filter core 2 is provided with a plurality of defoaming holes 21 with wedge-shaped cross section, the narrow end of which is connected with the gas cavity 11, and the wide end is connected with the liquid cavity 12.

[0028] The gas cavity 11 is provided with an oil liquid inlet 13, which is connected with an oil pump 10 through pipeline. The oil pump 10 draws the emulsified oil liquid and inputs it into the defoaming cylinder 1. The oil liquid falls into the liquid cavity 12 through the filter core 2, and the bubbles are broken under the action of the defoaming holes 21 and also flow into the liquid cavity 12, finally flow out from the liquid outlet of the defoaming cylinder 1 to perform water removal operation.

[0029] As shown, Figure 2 The top of the gas cavity 11 is opened and provided with a float switch, which comprises a valve body 5, an inner float ball 6 is installed in the valve body 5, and a gap is provided between the float ball 6 and the side wall of the valve body 5. The lower end of the valve body 5 is provided with an annular first convex ring, and the upper end surface of the first convex ring is provided with a first spherical surface 51, which is in contact with the float ball 6 to realize the sealing of the defoaming cylinder 1.

[0030] The emulsified oil liquid first enters the gas cavity 11 under the action of the oil pump 10, flows into the liquid cavity 12 through the filter core 2, and the bubbles cannot pass through the filter core 2 but can only enter the liquid cavity 12 through the defoaming holes 21. When the bubbles pass through the defoaming holes 21, they will touch the edges of the defoaming holes 21 and be broken, and the bubbles will also be broken by the extrusion of the bubble holes, thereby achieving the effect of defoaming, facilitating the subsequent oil liquid water removal and improving the water removal effect. The wedge-shaped structure of the defoaming holes 21 enlarges the flow, so that the bubbles can flow into the liquid cavity 12 in the first time after being broken, thereby improving the defoaming speed. After the bubbles are broken, the air pressure in the defoaming cylinder 1 will rise, thereby lifting the float ball 6 upward, so that the float ball 6 is separated from the first convex ring, and the gas is discharged from the side of the float ball 6 to the outside of the defoaming cylinder 1.

[0031] Example two:

[0032] Compared with example one, the difference is that: Figure 3 and Figure 4As shown, the filter core 2 is provided with two layers in parallel, which are respectively provided as a first filter core 3 and a second filter core 4; the first filter core 3 is provided with a wedge-shaped first bubble removing hole 31; the second filter core 4 is provided with a wedge-shaped second bubble removing hole 41; the first bubble removing hole 31 and the second bubble removing hole 41 constitute a bubble removing hole 21; the first filter core 3 and the second filter core 4 can slide relative to each other, so that the first bubble removing hole 31 and the second bubble removing hole 41 are arranged staggered. When the amount of bubbles is large, the first filter core 3 and the second filter core 4 are staggered, and when the bubbles enter the second bubble removing hole 41, the edges of the second bubble removing hole 41 are touched; and when the bubbles enter the second bubble removing hole 41, the entrance of the second bubble removing hole 41 is partially blocked by the first filter core 3, so as to reduce the entrance area. Therefore, the first bubble hole 31 and the second bubble hole 41 are staggered, which can realize secondary rupture and ensure complete elimination of bubbles.

[0033] Example three:

[0034] Compared with example two, the difference is that a support plate 14 is arranged horizontally in the bubble removing cylinder 1. The partition plate is arranged obliquely, and the bubble removing cylinder 1 is provided with a plug-in hole near the top. One end of the filter core 2 is provided with a clamping plate, and the other end is obliquely inserted into the bubble removing cylinder 1 and abuts against the support plate 14, and at this time the clamping plate is clamped with the plug-in hole. In this way, the filter core 2 is convenient to disassemble and assemble. The oblique design of the filter core 2 enables the bubble removing cylinder 1 to install a longer filter core 2, thereby increasing the area of the filter core 2, and more bubble removing holes 21 can be arranged, thereby improving the bubble removing efficiency.

[0035] Example four:

[0036] Compared with example one, the difference is that the oil inlet 13 is provided with a heater 7. The heater 7 increases the temperature of the oil and also increases the temperature of the bubbles, so that the molecules are more active and more unstable, which leads to the bubbles being more easily broken. Moreover, the heater 7 also increases the amount of water converted into water vapor, so that more water can be converted into water vapor and discharged from the bubble removing cylinder 1.

[0037] The heating temperature of the heater 7 is set to 50-60℃. In this way, not only the amount of water vaporization is increased, but also the carbonization and metamorphism of the oil can be avoided.

[0038] Example five:

[0039] Compared with example three, the difference is that the bubble removing cylinder 1 is provided with a first liquid level controller 8 near the top, and the first liquid level controller 8 is arranged away from the filter core 2. When the liquid level in the bubble removing cylinder 1 reaches the first liquid level controller 8, the oil supply to the bubble removing cylinder 1 is stopped to avoid the oil in the bubble removing cylinder 1 being too much to open the float switch and overflow.

[0040] Example six:

[0041] Compared with the embodiment five, the difference is that: because the bubbles are accumulated, the oil level does not reach the first liquid level controller 8, but the bubbles are accumulated along the filter core 2 and exceed the height of the first liquid level controller 8, so that the bubbles overflow directly from the float switch, therefore, the second liquid level controller 9 is installed on the valve body 5 near the top, and the float 6 and the side wall of the valve body 5 are spaced apart. In this way, when the bubbles enter the float switch, the bubbles overflow from the side of the float 6 and trigger the second liquid level controller 9, so that the oil supply to the bubble removing cylinder 1 is stopped.

[0042] Embodiment seven:

[0043] Compared with the embodiment six, the difference is that: the top of the valve body 5 is further provided with a second convex ring, and the lower end of the second convex ring is provided with a second spherical surface 52 which is opposite to the float. When the bubbles overflow upward, the float 6 is lifted upward. When the bubbles trigger the second liquid level controller 9, the float 6 is attached to the second spherical surface 52, and the outlet of the valve body 5 is blocked, so that the bubbles are prevented from overflowing from the valve body 5.

[0044] Based on the above ideal embodiments according to the application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the application. The technical scope of the application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An oil liquid deaerator characterized by: The device comprises a bubble removing cylinder (1) with a filter core (2) installed inside, thus separating the bubble removing cylinder (1) into a gas cavity (11) and a liquid cavity (12); The gas cavity (11) is provided with an oil inlet (13) and a float switch at the top for air exhaust; The filter core (2) is provided with a plurality of bubble removing holes (21) with wedge-shaped cross sections, with the narrow end connected to the gas cavity (11) and the wide end connected to the liquid cavity (12); The bubble removing cylinder (1) is provided with a support plate (14); The filter core (2) is inserted into the bubble removing cylinder (1) obliquely, with the lower end abutting against the support plate (14); The float switch comprises a valve body (5) provided at the top of the gas cavity (11) and a float ball (6) installed inside the valve body (5); The valve body (5) is provided with a first spherical surface (51) corresponding to the float ball (6) inside; The float ball (6) is in close contact with the first spherical surface (51) to achieve sealing and block the inlet of the valve body (5); The bubble removing cylinder (1) is provided with a first liquid level controller (8) near the top; The valve body (5) is provided with a second liquid level controller (9) near the top.

2. An oil deaerator according to claim 1, characterised in that: The filter core (2) is provided with two layers in parallel, which are a first filter core (3) and a second filter core (4); The first filter core (3) is provided with wedge-shaped first bubble removing holes (31); The second filter core (4) is provided with wedge-shaped second bubble removing holes (41); The first bubble removing holes (31) and the second bubble removing holes (41) constitute the bubble removing holes (21); The first filter core (3) and the second filter core (4) can slide relative to each other, so that the first bubble removing holes (31) and the second bubble removing holes (41) are arranged in staggered manner.

3. The oil liquid deaerator device according to claim 1, characterized in that: The oil inlet (13) is provided with a heater (7).

4. An oil deaerator according to claim 3, characterised in that: The heating temperature of the heater (7) is set to 50-60℃.

5. The oil liquid deaerator device according to claim 1, characterized in that: The top of the valve body (5) is further provided with a second spherical surface (52) opposite to the float ball (6).

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