Device for absorbing oil mist in oil groove

Abstract

The utility model provides a device for absorbing oil mist in an oil groove, which comprises an oil groove and a sealing cover which are sleeved on a rotating shaft, oil is stored in the oil groove, the sealing cover is hermetically connected above the oil groove, a separation chamber is fixed in a non-oil space below the sealing cover, and a filter element is filled in the separation chamber; the separation chamber is provided with an oil mist inlet, an oil outlet and an air outlet pipe, and the air outlet pipe is connected with a suction device outside the sealing cover; an ultrasonic generator is arranged outside the sealing cover, a transducer is installed on the outer wall of the separation chamber, the input end of the transducer is connected with the ultrasonic generator, and a vibration head of the transducer is connected with the outer wall face of the separation chamber. Ultrasonic energy generated by high-frequency vibration is utilized, tiny oil drops in a filter element and oil mist can be quickly and efficiently gathered and separated, and compared with an extrusion and rotary spin-drying mode, the ultrasonic treatment speed is higher, the efficiency is higher, abrasion is avoided, and the equipment maintenance cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil tank oil mist absorption device, mainly used for generator set bearing oil tank seal. BACKGROUND

[0002] At present, large -scale rotating bearing all through oil lubrication to reduce the friction surface temperature, oil level is too high and causes lubricating oil to accelerate the overflow, oil level is too low, the surface friction temperature of the bearing bush is difficult to diffuse, causes the bearing bush to burn down and stops the accident, brings the huge economic loss, when the unit rotates, the oil tank is impacted severely, and the oil surface forms a fluctuation giant wave, the temperature rises, the oil expands rapidly, the oil tank is full of oil mist, the oil mist rapidly overflows along the sealing gap, causes the stator coil and the surrounding equipment of the generator to be polluted, the insulation performance of the stator coil is reduced, is easy to cause the stator breakdown and fires, seriously threatens the operation safety of power generation, reduces the service life of the generator, and brings serious safety hidden danger.

[0003] The traditional oil tank oil mist absorption device structure mostly adopts extrusion and rotation spin-drying mode.

[0004] Extrusion mode usually needs greater pressure to extrude the oil liquid in the oil mist, and the processing speed is relatively slow, and long-time extrusion can cause damage to the filter material, affecting the filtering effect and service life.

[0005] The components of the rotation spin-drying mode are prone to wear and tear, and need to be replaced and maintained regularly, and in the rotation spin-drying process, relatively large noise and vibration can be generated, affecting the working environment. INVENTION CONTENTS

[0006] The utility model aims at providing an oil tank oil mist absorption device, which separates the oil mist by using an ultrasonic device to solve the above technical problems existing in the prior art.

[0007] The technical scheme adopted by the utility model is:

[0008] An oil tank oil mist absorption device, comprising an oil tank and a sealing cover sleeved on a rotating shaft, the oil tank stores oil liquid, and the sealing cover is sealingly connected to the upper part of the oil tank, characterized in that:

[0009] A separation chamber is fixed in the non-oil liquid space below the sealing cover, and a filter core is filled in the separation chamber; the separation chamber is provided with an oil mist inlet, an oil outlet and an air outlet pipe, and the air outlet pipe is connected to a suction device outside the sealing cover;

[0010] An ultrasonic generator is arranged outside the sealing cover, a transducer is installed on the outer wall of the separation chamber, the input end of the transducer is connected to the ultrasonic generator, and the vibration head of the transducer is connected to the outer wall of the separation chamber.

[0011] The oil mist absorption device in the oil tank, wherein: a plurality of studs are fixed on the upper plane of the separation chamber, and the transducers are installed on the studs, and the vibration heads of the transducers are in contact with the upper plane of the separation chamber.

[0012] The oil mist absorption device in the oil tank, wherein: the left side, the right side and the lower side of the separation chamber are respectively provided with the oil mist inlets.

[0013] The oil mist absorption device in the oil tank, wherein: the lower side of the separation chamber is inclined and provided with the oil outlet at the low point, and the oil outlet and the air outlet pipe are arranged in a left-right staggered manner.

[0014] The oil mist absorption device in the oil tank, wherein: the separation chamber is fixed to the sealing cover, and the buffer is arranged between the separation chamber and the sealing cover.

[0015] The oil mist absorption device in the oil tank, wherein: the buffer is a damping spring abutting between the separation chamber and the sealing cover.

[0016] The oil mist absorption device in the oil tank, wherein: a convex mouth is arranged on the upper plane of the sealing cover and close to the outer diameter side, the inside of the convex mouth is provided with upper and lower clamping grooves with different heights, and the oil liquid saturation detector is installed in the convex mouth and can monitor the oil liquid saturation degree in the filter element; the oil liquid saturation detector is provided with an elastic clamping piece, when the elastic clamping piece is in contact with the lower clamping groove in the inside of the convex mouth, the oil liquid saturation detector is inserted into the filter element in the separation chamber, and when the elastic clamping piece is in contact with the upper clamping groove in the inside of the convex mouth, the oil liquid saturation detector is separated from the filter element in the separation chamber.

[0017] The oil mist absorption device in the oil tank, wherein: the sealing cover is provided with a follow-up sealing tooth close to the rotating shaft, the follow-up sealing tooth and the spring connected thereto are installed in the T-shaped groove of the upper sealing plate, and the upper sealing plate is fixed to the sealing cover.

[0018] The oil mist absorption device in the oil tank, wherein: the separation chamber is made of metal.

[0019] The ultrasonic wave energy generated by high-frequency vibration can quickly and efficiently collect and separate the filter element and the tiny oil droplets in the oil mist, compared with the extrusion and rotary spin-drying mode, the ultrasonic wave processing speed is faster, the efficiency is higher, and the energy consumption is relatively low, so that energy can be saved. During the ultrasonic wave filtering process, there is no relative movement of mechanical parts, so no wear is generated, and the equipment maintenance cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 、 Figure 2 、 Figure 3 The oil mist absorption device in the oil tank, wherein: a plurality of studs are fixed on the upper plane of the separation chamber, and the transducers are installed on the studs, and the vibration heads of the transducers are in contact with the upper plane of the separation chamber.

[0021] Figure 4 is a sectional view of the convex nose position of the sealing cover;

[0022] Figure 5 is a structural schematic view of the oil saturation detector.

[0023] Marked: 1 rotation shaft; 2 sealing cover; 3 convex nose; 4 upper clamping groove; 5 lower clamping groove; 6 end face bolt; 7 oil groove; 8 ultrasonic generator; 9 flange; 10 transducer; 11 stud; 12 positive connection line; 13 negative connection line; 14 separation chamber; 15 filter core; 16 oil outlet; 17 oil mist inlet; 18 air outlet pipe; 19 oil saturation detector; 20 elastic clamping piece; 21 upper sealing plate; 22 follow-up sealing tooth; 23 spring; 24 connecting plate; 25 buffer; 26 automatic control unit. DETAILED DESCRIPTION

[0024] As Figure 1 , Figure 2 , Figure 3 indicated, the utility model provides an oil mist absorption device in oil groove, including the oil groove 7 and sealing cover 2 of sleeve connection on rotation shaft 1, the oil groove 7 has stored oil liquid, and sealing cover 2 is connected with the oil groove 7 through end face bolt 6 and forms sealing, wherein:

[0025] Sealing cover 2 is arranged with follow-up sealing tooth 22 near the position of rotation shaft 1, and follow-up sealing tooth 22 and the spring 23 that it pushes are installed in the T-shaped groove of upper sealing plate 21, and upper sealing plate 21 is fixed on sealing cover 2;Follow-up sealing tooth 22 can keep the sealing between sealing cover 2 and rotation shaft 1 in the rotation process of rotation shaft 1 (rotation shaft 1 occurs radial bounce) by virtue of the elasticity of spring 23;

[0026] Separation chamber 14 is arranged in the non-oil liquid space below sealing cover 2, and separation chamber 14 is metal material, is fixed to sealing cover 2 through connecting plate 24, and is filled with filter core 15 (for example, sponge) in the inside of separation chamber 14;The left side, the right side, the downside of separation chamber 14 are respectively provided with oil mist inlet 17, and the downside is inclined and is arranged with oil outlet 16 at the low point, and the upside is arranged with air outlet pipe 18 (air outlet pipe 18 is connected with external suction device, is prior art, and here is not described in detail) that communicates with the outside of sealing cover 2, and oil outlet 16 and air outlet pipe 18 are arranged staggeredly left and right;

[0027] Ultrasonic generator 8 is connected and is fixed by bolt on the plane of sealing cover 2 through flange 9, and a plurality of stud 11 are fixed on the plane of separation chamber 14, and transducer 10 is installed on stud 11, and the input end of transducer 10 is connected with ultrasonic generator 8 through positive connection line 12 and negative connection line 13, and the vibration head of transducer 10 is connected with the upper plane of separation chamber 14;

[0028] A buffer 25, such as a damping spring 23 abutting between the separation chamber 14 and the sealing cover 2, is arranged between the separation chamber 14 and the sealing cover 2 to absorb the vibration generated during the operation of the ultrasonic generator 8.

[0029] A protruding nozzle 3 is arranged on the upper surface of the sealing cover 2 near the outer diameter side, as shown in Figure 4 The protruding nozzle 3 is internally provided with upper and lower clamping grooves 4 and 5 with different heights.

[0030] An oil saturation detector 19 is inserted into the protruding nozzle 3, as shown in Figure 5 The outer wall of the oil saturation detector 19 is provided with an elastic clamping member 20. When the elastic clamping member 20 is in contact with the lower clamping groove 5 in the protruding nozzle 3, the oil saturation detector 19 is inserted into the filter element 15 in the separation chamber 14 to monitor the saturation degree of the oil in the filter element 15.

[0031] When the unit is running, the rotating shaft 1 rotates to stir the oil in the oil groove 7 to increase the oil temperature and form oil mist. The oil mist enters the separation chamber 14 under the negative pressure of the suction device. The oil and air are separated by the filter element 15 in the separation chamber 14. The separated oil is adsorbed by the filter element 15, and the separated air is discharged to the outside through the air outlet pipe 18.

[0032] After the oil mist passing through the filter element 15 is adsorbed by the filter element 15, the oil saturation detector 19 monitors the oil reaching the preset value and sends a signal to the automatic control unit 26. The automatic control unit 26 drives the oil saturation detector 19 to act upward (the driving mechanism is not the focus of the present application and is not described here). The elastic clamping member 20 enters the upper clamping groove 4 to make the oil saturation detector 19 separate from the filter element 15. Then, the automatic control unit 26 sends a command to the ultrasonic generator 8 to drive the transducer 10 to act, convert the high-frequency electrical signal into mechanical vibration, and transmit it to the oil in the filter element 15 through the separation chamber 14. Under the action of the ultrasonic wave, the oil is separated from the filter element 15, and the oil flows back into the oil groove 7 through the oil outlet 16. When the oil in the filter element 15 flows out, the ultrasonic generator 8 stops working, and the automatic control unit 26 drives the oil saturation detector 19 to act downward, so that the elastic clamping member 20 enters the lower clamping groove 5 to make the oil saturation detector 19 extend into the filter element 15 to monitor the saturation degree of the oil.

[0033] When the oil mist overflows along the rotating shaft 1 through the gap between the sealing cover 2 and the rotating shaft 1, the follow-up sealing teeth 22 can prevent the oil mist from overflowing.

[0034] The oil mist absorption device in the oil groove 7 emits high-frequency electric signals through the ultrasonic generator 8, converts the high-frequency electric signals into mechanical vibration through the transducer 10, and separates the oil liquid from the air under the action of the ultrasonic wave after the oil mist in the oil groove 7 is adsorbed by the filter core 15, and the oil liquid flows back into the oil groove 7 and the air is discharged to the outside, which not only prevents the overflow of the oil mist, but also prolongs the service life of the filter core 15 and plays a role of recycling.

Claims

1. An oil mist absorption device in an oil tank, comprising an oil tank and a sealing cover sleeved on a rotating shaft, the oil tank storing oil, and the sealing cover sealingly connected to the oil tank, characterized in that: a separation chamber is fixed in a non-oil space below the sealing cover, and a filter element is filled in the separation chamber; the separation chamber is provided with an oil mist inlet, an oil outlet and an air outlet pipe connected to a suction device outside the sealing cover; an ultrasonic generator is arranged outside the sealing cover, and a transducer is installed on the outer wall of the separation chamber, with the input end of the transducer connected to the ultrasonic generator and the vibration head of the transducer connected to the outer wall of the separation chamber. A plurality of studs are fixed on the upper plane of the separation chamber, and the transducer is installed on the studs, with the vibration head of the transducer connected to the upper plane of the separation chamber. The left side, right side and lower side of the separation chamber are respectively provided with the oil mist inlet.

2. The oil mist in-oil sump extraction apparatus of claim 1, wherein: The lower side of the separation chamber is inclined and provided with the oil outlet at the low point, and the oil outlet and the air outlet pipe are arranged left and right staggered.

3. The oil mist in sump extraction apparatus of claim 1, wherein: The separation chamber is fixed to the sealing cover, and a buffer is arranged between the separation chamber and the sealing cover.

4. The oil mist in sump extraction apparatus of claim 1, wherein: The buffer is a damping spring abutting between the separation chamber and the sealing cover.

5. The oil mist in sump extraction apparatus of claim 1, wherein: A lug is arranged on the upper plane of the sealing cover near the outer diameter side, and the lug is internally provided with upper and lower clamping grooves with different heights; an oil saturation detector is installed in the lug, which can monitor the oil saturation degree in the filter element; the oil saturation detector is provided with an elastic clamping piece, when the elastic clamping piece is connected to the lower clamping groove in the lug, the oil saturation detector is inserted into the filter element in the separation chamber, and when the elastic clamping piece is connected to the upper clamping groove in the lug, the oil saturation detector is separated from the filter element in the separation chamber.

6. A device for absorbing oil mist within an oil sump as claimed in claim 5, wherein: A follow-up sealing tooth is arranged on the sealing cover near the rotating shaft, and the follow-up sealing tooth and the spring connected thereto are installed in a T-shaped groove of an upper sealing plate, and the upper sealing plate is fixed to the sealing cover.

7. The oil mist in sump extraction apparatus of claim 1, wherein: The separation chamber is made of metal.

8. The oil mist in sump extraction apparatus of claim 1, wherein: ​ 9. The oil mist in sump extraction apparatus of claim 1, wherein: ​

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