Automatic adsorption device for bearing oil of hydro-generator

Abstract

The invention discloses an automatic adsorption device for bearing oil of a hydro-generator, relates to an automatic oil absorption technology for bearing atomized oil, and aims to solve the problem of poor oil absorption effect of an oil mist collection device for a bearing oil groove of an existing hydro-generator. The receiving cover is of a trumpet-shaped hollow structure; an air suction through hole is formed in the side wall of the upper end of the oil collector, and an exhaust through hole is formed in the side wall of the lower end of the oil collector; an oil collecting box is arranged at the position, close to the exhaust through hole, in the oil collector, oil absorption foam layers are arranged in the oil collecting box in a stacked mode, and a plastic diaphragm is arranged between every two adjacent oil absorption foam layers; the air suction through hole of the oil collector is communicated with the small-diameter end of the receiving cover; and an exhaust inlet of the adsorption motor is communicated with the exhaust through hole of the oil collector. The oil absorption device has the advantages that the stacked oil absorption foam layers are adopted in the oil collection box to absorb oil mist according to the siphon principle, the oil mist is prevented from polluting equipment near the rotating shaft of the hydro-generator, and the oil absorption effect is improved.

Description

Technical Field

[0001] The present invention relates to an automatic oil suction technology for atomized oil of bearings. Background Art

[0002] When the unit of a hydrogenerator is in operation, when the upper guide rotating oil sump and the lower guide rotating oil sump rotate at high speed, the turbine oil in the rotating oil sump will be "atomized", and the oil mist in the rotating oil sump will be dispersed into the air through the gap of the end cover of the rotating oil sump, causing oil corrosion to nearby equipment such as slip rings, brush holders, and automation components; especially for the electrical equipment of the slip ring of a hydrogenerator, under the immersion of oil stains, combined with the deposition of slip ring carbon powder and the combination of oil and carbon powder, rotor grounding faults of the hydrogenerator often occur. In the Chinese utility model patent with the patent authorization announcement number: CN 207137585 U and the patent name "Oil Mist Collection Device for Bearing Oil Sump of Hydrogenerator", a kind of oil mist collection device for bearing oil sump of hydrogenerator is recorded: including a connecting seat, a lid, and an oil mist collection cylinder located between the connecting seat and the lid. A plurality of air outlet holes are provided on the upper barrel wall of the oil mist collection cylinder, and the inside of the oil mist collection cylinder is filled with an oil mist adsorption material; the advantage of this kind of oil mist collection device for bearing oil sump of hydrogenerator is simple structure, but its adsorption effect on bearing oil is not good, and the oil absorption effect of the oil mist adsorption material filled inside the oil mist collection cylinder is limited. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of poor oil absorption effect of the existing oil mist collection device for bearing oil sump of hydrogenerator, and a kind of automatic oil adsorption device for bearing oil sump of hydrogenerator is proposed.

[0004] An automatic oil adsorption device for bearing oil sump of hydrogenerator described in the present invention includes a receiving cover, an oil collector, and an adsorption motor;

[0005] The receiving cover is a horn-shaped hollow structure;

[0006] An air suction through hole is provided on the upper side wall of the oil collector, and an exhaust through hole is provided on the lower side wall of the oil collector; an oil collection box is provided inside the oil collector near the exhaust through hole, and an oil absorption foam layer is provided inside the oil collection box in a stacked manner, and a plastic diaphragm is provided between adjacent layers of the oil absorption foam layer;

[0007] The air suction through hole of the oil collector is communicated with the small-diameter end of the receiving cover;

[0008] The air suction port of the adsorption motor is communicated with the exhaust through hole of the oil collector.

[0009] Further, it further includes a first oil suction pipe;

[0010] One end of the first oil suction pipe is communicated with the air suction through hole of the oil collector; the other end of the first oil suction pipe is communicated with the small-diameter end of the receiving cover.

[0011] Further, it further includes a second oil suction pipe;

[0012] One end of the second oil suction pipe is communicated with the exhaust through hole of the oil collector, and the other end of the second oil suction pipe is communicated with the suction port of the adsorption motor.

[0013] Further, the receiving cover is made of stainless steel, and threads are provided on the inner wall of the large-diameter end of the receiving cover, and a confluence channel is provided at the small-diameter end of the receiving cover.

[0014] Further, the bottom of the oil collecting box is filled with silica gel particles.

[0015] Further, it further includes a magnetic switch;

[0016] One end of the magnetic switch is connected to the positive output end of the power supply, the other end of the magnetic switch is connected to the positive power supply end of the adsorption motor, and the negative power supply end of the adsorption motor is connected to the negative output end of the power supply.

[0017] The present invention has the following beneficial effects compared with the prior art:

[0018] The receiving cover of the present invention fits perfectly with the end cover of the rotating shaft of the hydro-generator, and through the combined use of the external oil collector and the adsorption motor, all the leaked oil mist generated when the rotating shaft of the hydro-generator rotates is sucked into the oil collecting box inside the oil collector. The oil collecting box uses a stacked oil absorption foam layer to absorb the oil mist by the siphon principle, preventing the oil mist from polluting the equipment near the rotating shaft of the hydro-generator and improving the oil absorption effect; at the same time, the setting of the oil collecting box is convenient for disassembly and replacement. Description of the Drawings

[0019] Figure 1 The front structure three-dimensional view of an automatic oil adsorption device for a hydro-generator bearing as described in Embodiment 1;

[0020] Figure 2 The back structure three-dimensional view of an automatic oil adsorption device for a hydro-generator bearing as described in Embodiment 1;

[0021] Figure 3 The working principle schematic diagram of an automatic oil adsorption device for a hydro-generator bearing in Embodiment 1. Specific Embodiments

[0022] Specific Embodiment 1. In combination with Figures 1 to 3 This embodiment is described. An automatic oil adsorption device for a hydro-generator bearing described in this embodiment includes a receiving cover 1, an oil collector 3, and an adsorption motor 5;

[0023] The receiving cover 1 is a horn-shaped hollow structure;

[0024] An air intake through-hole is provided on the upper side wall of the oil collector 3, and an exhaust through-hole is provided on the lower side wall of the oil collector 3; an oil collecting box is provided inside the oil collector 3 near the exhaust through-hole, and an oil absorption foam layer is provided inside the oil collecting box in a stacked manner, and a plastic diaphragm is provided between adjacent layers of the oil absorption foam layer;

[0025] The air intake through-hole of the oil collector 3 is communicated with the small-diameter end of the receiving cover 1;

[0026] The air suction port of the adsorption motor 5 is communicated with the exhaust through-hole of the oil collector 3.

[0027] In this embodiment, the large-diameter end of the receiving cover 1 is arranged outside the end cover of the water turbine generator rotating shaft; the horn-shaped hollow structure of the receiving cover 1 is to facilitate fitting with the end cover of the water turbine generator rotating shaft. The oil collecting box provided inside the oil collector 3 has an oil absorption function, and the adsorption motor 5 is used to provide adsorption power to absorb all the oil mist into the oil collecting box to achieve the purpose of improving the oil absorption effect; and the oil collector 3 adopts a cylindrical structure with a hollow interior. The oil collecting box is placed at the lower part of the oil collector 3, which is convenient for replacement and absorption of oil mist. The oil absorption foam layer in the oil collecting box absorbs oil based on the principle of siphon.

[0028] Specific Embodiment Two: This embodiment further limits a water turbine generator bearing oil automatic adsorption device described in Specific Embodiment One. In this embodiment, a first oil suction pipe 2 is further included;

[0029] One end of the first oil suction pipe 2 is communicated with the air intake through-hole of the oil collector 3; the other end of the first oil suction pipe 2 is communicated with the small-diameter end of the receiving cover 1.

[0030] In this embodiment, the first oil suction pipe 2 is used to connect the air intake through-hole of the oil collector 3 and the small-diameter end of the receiving cover 1. The setting of the first oil suction pipe 2 can place the oil collector 3 away from the water turbine generator rotating shaft, making the structural setting more flexible.

[0031] Specific Embodiment Three: This embodiment further limits a water turbine generator bearing oil automatic adsorption device described in Specific Embodiment One. In this embodiment, a second oil suction pipe 4 is further included;

[0032] One end of the second oil suction pipe 4 is communicated with the exhaust through-hole of the oil collector 3, and the other end of the second oil suction pipe 4 is communicated with the air suction port of the adsorption motor 5.

[0033] In this application mode, the second oil suction pipe 4 is used to connect the exhaust through-hole of the oil collector 3 and the air suction port of the adsorption motor 5 together, which can also further enhance the flexibility of the structural setting.

[0034] Specific Embodiment 4. This embodiment further limits an automatic oil adsorption device for a hydrogenerator bearing described in Specific Embodiment 1. In this embodiment, the receiving cover 1 is made of stainless steel, and threads are provided on the inner wall of the large-diameter end of the receiving cover 1. At the same time, a confluence channel is provided at the small-diameter end of the receiving cover 1.

[0035] In this embodiment, by providing threads on the inner wall of the large-diameter end of the receiving cover 1, the receiving cover 1 is arranged outside the end cover of the rotating shaft of the hydrogenerator in a threaded connection manner, achieving full wrapping of the end cover of the rotating shaft of the hydrogenerator and further preventing oil mist from leaking. At the same time, the setting of the confluence channel enhances the confluence effect and achieves the purpose of further improving the oil absorption effect.

[0036] Specific Embodiment 5. This embodiment further limits an automatic oil adsorption device for a hydrogenerator bearing described in Specific Embodiment 1. In this embodiment, silica gel particles are filled at the bottom of the oil collecting box.

[0037] In this embodiment, the silica gel particles are used to fill the gap between the oil collecting box and the oil collector 3, preventing oil mist from entering the adsorption motor 5 through the gap between the oil collecting box and the oil collector 3, and achieving the purpose of further improving the oil absorption effect.

[0038] Specific Embodiment 6. This embodiment further limits an automatic oil adsorption device for a hydrogenerator bearing described in Specific Embodiment 1. In this embodiment, it further includes a magnetic switch;

[0039] One end of the magnetic switch is connected to the positive output terminal of the power supply, the other end of the magnetic switch is connected to the positive power supply terminal of the adsorption motor 5, and the negative power supply terminal of the adsorption motor 5 is connected to the negative output terminal of the power supply.

[0040] In this embodiment, the magnetic switch is arranged close to the rotating shaft of the hydrogenerator. Through the setting of the magnetic switch, the automatic adsorption device is converted from manual start to automatic start. When the hydrogenerator rotates, the adsorption motor 5 is automatically started under the action of the magnetic switch, achieving the effect of starting immediately when turned on and realizing fully automatic intelligent oil mist absorption.

[0041] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automatic oil adsorption device for the bearing of a hydrogenerator, characterized in that, It includes a receiving hood (1), an oil collector (3) and an adsorption motor (5); The receiving hood (1) is a horn-shaped hollow structure; An air suction through-hole is provided on the upper side wall of the oil collector (3), and an exhaust through-hole is provided on the lower side wall of the oil collector (3); An oil collecting box is provided inside the oil collector (3) near the exhaust through-hole, and an oil absorption foam layer is provided inside the oil collecting box in a stacked manner, and a plastic diaphragm is provided between adjacent layers of the oil absorption foam layer; The air suction through-hole of the oil collector (3) is communicated with the small-diameter end of the receiving hood (1); The air suction port of the adsorption motor (5) is communicated with the exhaust through-hole of the oil collector (3).

2. The automatic oil adsorption device for the bearing of a hydrogenerator according to claim 1, wherein, It also includes a first oil suction pipe (2); One end of the first oil suction pipe (2) is communicated with the air suction through-hole of the oil collector (3); The other end of the first oil suction pipe (2) is communicated with the small-diameter end of the receiving hood (1).

3. An automatic oil adsorption device for a water turbine generator bearing according to claim 1, characterized in that, It also includes a second oil suction pipe (4); One end of the second oil suction pipe (4) is communicated with the exhaust through-hole of the oil collector (3), and the other end of the second oil suction pipe (4) is communicated with the air suction port of the adsorption motor (5).

4. The automatic oil adsorption device for the bearing of a hydrogenerator according to claim 1, characterized in that, The receiving hood (1) is made of stainless steel, and threads are provided on the inner wall of the large-diameter end of the receiving hood (1), and a confluence channel is provided at the small-diameter end of the receiving hood (1).

5. The automatic oil adsorption device for the bearing of a hydrogenerator according to claim 1, characterized in that, Silica gel particles are filled at the bottom of the oil collecting box.

6. The automatic oil adsorption device for the bearing of a hydrogenerator according to claim 1, wherein It also includes a magnetic switch; One end of the magnetic switch is connected to the positive output terminal of the power supply, the other end of the magnetic switch is connected to the positive power supply terminal of the adsorption motor (5), and the negative power supply terminal of the adsorption motor (5) is connected to the negative output terminal of the power supply.

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