CN113107813B

CN113107813B - Electric field type oil emulsification reverser and application method thereof

Info

Publication number: CN113107813B
Application number: CN202011539219.0A
Authority: CN
Inventors: 白顺科
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2022-03-08
Anticipated expiration: 2040-12-23
Also published as: WO2022134342A1; CN113107813A

Abstract

The invention discloses an electric field type oil emulsification reverser and a using method thereof, and relates to the field of general machinery.

Description

Electric field type oil emulsification reverser and application method thereof

Technical Field

The invention relates to the field of general machinery, in particular to an electric field type oil emulsification reverser and a using method thereof.

Background

The compressor is widely applied as a general machine, and under most conditions, the safe and efficient operation of the compressor can not be realized without lubricating oil to ensure the lubrication and cooling of parts in the compressor, but during the operation of the compressor, gas, particularly air, inevitably contains water vapor, and particularly in a high-temperature and humid environment, the air entering the compressor contains more moisture. When the compressor stops working, particularly during the period of entering into a plateau or in the cold night, the temperature in the compressor body is greatly reduced, water vapor contained in air originally entering and remaining in the cavity of the compressor can be condensed into larger water drops to be dispersed and mixed into lubricating oil in the compressor body, the lubricating oil can be emulsified to reduce the lubricating effect of the lubricating oil after long time, further the friction and heat generation of parts are increased, the lubricating oil is carbonized at high temperature, the lubricating failure is caused, the operating efficiency and the service life of the compressor are reduced, and even the compressor is rapidly damaged. In particular, in the case of a vane compressor used in a vehicle, since the operation is mainly intermittent, and the duration of each operation is short, the temperature of the lubricating oil is usually not increased for a long time enough to evaporate as much as possible all of the water vapor in the lubricating oil, and therefore the problem of emulsification of the lubricating oil therein often leads to serious consequences. Therefore, it is necessary to develop a device with controllable cost, convenient maintenance and remarkable emulsification reversion effect for removing the water vapor condensation mixed with the lubricating oil in the compressor.

Disclosure of Invention

The invention aims to provide an electric field type oil emulsification reverser, which solves the defects in the prior art.

An electric field type oil emulsification reverser comprises a machine base, an oil-water separation labyrinth sieve, a pair of mesh electrodes, air-permeable discs and locking covers, wherein the machine base is provided with a through hole channel and an upper opening and a lower opening, the oil-water separation labyrinth sieve is arranged in the machine base in a penetrating mode, the mesh electrodes are arranged on the upper side and the lower side of the oil-water separation labyrinth sieve respectively, the air-permeable discs are arranged on the upper side and the lower side of the mesh electrodes, and the locking covers are used for pressing the air-permeable discs on the mesh electrodes through pressure-sharing sealing rings from the upper side and the lower side respectively.

Preferably, the oil-water separation labyrinth sieve is made of a molecular sieve capable of penetrating water molecules and air micromolecules, and a channel with a wave-shaped section is arranged in the middle of the oil-water separation labyrinth sieve along the through direction.

Preferably, the mesh electrode is a porous metal thin film.

Preferably, the middle part of the air permeable disc is provided with a plurality of air permeable holes.

Preferably, the pulsating direct current of 12-120 volts is applied to the mesh electrode.

The invention has the advantages that: the invention utilizes the high-frequency pulsating electric field and the labyrinth molecular sieve filter to realize the segregation and stratification of the excessive water vapor condensation contained in the lubricating oil in the lubricating system of the compressor and the induction heating evaporation removal of the high-frequency electric field, complete the oil-water separation in the emulsified lubricating oil and recover the quality of the lubricating oil, thereby overcoming the emulsification of the lubricating oil caused by the water vapor condensation in the compressor to ensure the reliable lubrication, safe and efficient operation of the compressor.

Drawings

Fig. 1 is a schematic view of the overall configuration of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an application case of the embodiment of the invention.

In the figure, a machine base 1, an oil-water separation labyrinth sieve 2, a mesh electrode 3, a breathable disc 4, a pressure-equalizing sealing ring 5, a locking cover 6 and an oil pipe sealing ring 7 are arranged;

the lubricating oil pump comprises a compressor 100, a gas filter 101, a compressor air inlet valve 102, an oil-gas separator 103, a lubricating oil pump 104, a high-pressure container 105 and a lubricating oil pipe 1000.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1, an electric field type oil emulsification reverser comprises a base 1 having a through hole and an upper opening and a lower opening, an oil-water separation labyrinth sieve 2 penetrating the base 1, a pair of mesh electrodes 3 respectively disposed on the upper side and the lower side of the oil-water separation labyrinth sieve 2, air-permeable discs 4 disposed on the upper side and the lower side of the mesh electrodes 3, and locking covers 6 for pressing the air-permeable discs 4 on the mesh electrodes 3 from the upper side and the lower side through pressure-equalizing seal rings 5.

In this embodiment, the oil-water separation labyrinth sieve 2 is made of a molecular sieve capable of passing through water molecules and air small molecules, and a channel having a wave-shaped cross section is arranged in the middle of the oil-water separation labyrinth sieve along a through direction.

In this embodiment, the mesh electrode 3 is a porous metal thin film.

In this embodiment, the middle of the air permeable disc 4 is provided with a plurality of air holes.

In this embodiment, a pulsating direct current of 12 to 120 volts is applied to the mesh electrode 3.

The present embodiment is connected between the oil separator and the oil pump of the lubrication system of the compressor through the oil pipe seal ring 7.

In this embodiment, the mesh electrode 3 is made of a copper or copper alloy foil material with meshes, the oil-water separation labyrinth sieve 2 is made of a molecular sieve material which only permeates water and air molecules, the pressure-equalizing seal ring 5 and the oil pipe seal ring 7 are made of oil-resistant rubber, and the rest parts are made of metal materials.

The working process of the embodiment is as follows:

in a typical application of this embodiment, as shown in fig. 2, the present invention is connected to the oil outlet pipe of the oil-gas separator 103 of the lubrication system of the compressor 100 through the oil pipe sealing ring 7, and the gas enters the compressor 100 through the gas filter 101 and the compressor air inlet valve 102, and the pulsating direct current of 12-120 v is applied to the mesh electrode 3. When the compressor works, air is sucked and compressed by the compressor and then enters the gas-oil separator 103, separated high-pressure gas enters the high-pressure container 105, separated lubricating oil enters the lubricating oil pump 104 through the embodiment, and finally the lubricating oil is pumped into the air inlet of the compressor 100 and enters the compressor 100 again with the air to complete lubrication. When the lubricant oil permeated with water vapor during the operation of the compressor passes through this embodiment, the dc pulsating electric field generated between the mesh electrodes 3 acts on water molecules, oil molecules and impurity ions in the lubricant oil, because the electric field force borne by the molecules and the particles is different relative to the respective mass, the molecules and the particles are inevitably layered and aggregated on the section of the oil-water separation labyrinth sieve 2, the water vapor gathered under the action of the pulsating electric field may appear near the upper vertex or the lower vertex of the channel in the oil-water separation labyrinth sieve 2 and be absorbed by the oil-water separation labyrinth sieve 2, meanwhile, the high-frequency pulsating electric field formed between the mesh electrodes 3 can also act on molecules and ions of the material in the oil-water separation labyrinth sieve 2, so that the water molecules and air molecules absorbed by the water-absorbing plate are finally scattered out through the holes in the air-permeable plate 4. The above-mentioned working process of this embodiment has reduced the steam that condenses in the lubricating oil to can play the emulsification reversal effect of lubricating oil, be favorable to the lubrication and the reliable operation of compressor.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. An electric field type oil emulsification reverser, which is characterized in that: the device comprises a machine base (1) which is provided with a through hole channel and is provided with an upper opening and a lower opening, an oil-water separation labyrinth sieve (2) which is arranged in the machine base (1) in a penetrating way, a pair of mesh electrodes (3) which are respectively arranged on the upper side and the lower side of the oil-water separation labyrinth sieve (2), breathable discs (4) which are arranged on the upper side and the lower side of the mesh electrodes (3), and locking covers (6) which press the breathable discs (4) on the mesh electrodes (3) through pressure-equalizing sealing rings (5) from the upper side and the lower side respectively;

the oil-water separation labyrinth sieve (2) is made of a molecular sieve capable of penetrating water molecules and air micromolecules, a channel with a wave-shaped cross section is arranged in the middle of the oil-water separation labyrinth sieve, and the mesh electrode (3) is a porous metal film.

2. An electric field type oil emulsification reverser according to claim 1 wherein: the middle part of the air permeable disc (4) is provided with a plurality of air permeable holes.

3. An electric field type oil emulsification reverser according to claim 1 wherein: the mesh electrode (3) is applied with pulsating direct current of 12-120V.

4. The method of using an electric field type oil emulsification reverser according to any one of claims 1-3, wherein the method is as follows:

the reverser is connected with an oil outlet pipe of an oil-gas separator (103) of a lubricating system of the compressor (100) through an oil pipe sealing ring (7), gas enters the compressor (100) through a gas filter (101) and a compressor air inlet valve (102), and pulsating direct current of 12-120V is applied to the mesh electrode (3);

when the compressor works, air is sucked and compressed by the compressor and then enters the oil-gas separator (103), separated high-pressure gas enters the high-pressure container (105), separated lubricating oil enters the lubricating oil pump (104) through the reverser, finally the lubricating oil is pumped into the air inlet of the compressor (100) and enters the compressor (100) again together with the air to finish lubrication, when the lubricating oil permeated with water vapor passes through the reverser in the working process of the compressor, a direct-current pulsating electric field generated between the mesh electrodes (3) acts on water molecules, oil molecules and impurity ions in the lubricating oil, because the electric field forces borne by the molecules and the particles are different relative to the respective masses, the molecules and the particles can inevitably cause layered aggregation on the section of the oil-water separation labyrinth sieve (2), and according to the difference of specific gravity of the lubricating oil, the water accumulated under the action of the pulsating electric field force can possibly appear near the upper top point or the lower top point of a channel in the oil-water separation labyrinth sieve (2) and is separated by oil-water (2) And absorption, and meanwhile, a high-frequency pulsating electric field formed between the mesh electrodes (3) can also act on molecules and ions of materials in the oil-water separation labyrinth sieve (2), so that the oil-water separation labyrinth sieve generates heat due to high-frequency vibration, and finally water molecules and air micromolecules absorbed by the oil-water separation labyrinth sieve are scattered out through holes in the air permeable disc (4).