CN110787488A - Vacuum state fiber membrane type oil dewatering treatment device - Google Patents
Vacuum state fiber membrane type oil dewatering treatment device Download PDFInfo
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- CN110787488A CN110787488A CN201911178596.3A CN201911178596A CN110787488A CN 110787488 A CN110787488 A CN 110787488A CN 201911178596 A CN201911178596 A CN 201911178596A CN 110787488 A CN110787488 A CN 110787488A
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- oil
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- water separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
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Abstract
The invention discloses a vacuum fiber membrane type oil dewatering treatment device which comprises an oil tank, wherein an oil outlet of the oil tank is connected with an inlet of a low-pressure oil pump through a pipeline, an outlet of the low-pressure oil pump is connected with an inlet of a particle filter through a pipeline, an outlet of the particle filter is connected with an oil inlet end of a fiber membrane oil-water separator through a pipeline, an oil return end of the fiber membrane oil-water separator is connected with an oil inlet of the oil tank through a pipeline, an exhaust port of the fiber membrane oil-water separator is connected with a vacuum pump through a pipeline, and a hydrophilic hollow fiber membrane is installed in the fiber membrane oil-water separator. The vacuum state fiber membrane type oil dehydration treatment device provided by the invention can simply, conveniently and effectively remove moisture in oil without changing the oil state, the whole device is operated at low pressure, the power consumption and oil leakage risks are reduced, air is not in direct contact with the oil, and the oil has no oxidation risk.
Description
Technical Field
The invention relates to the technical field of filtration and purification, in particular to a vacuum fiber membrane type oil dehydration treatment device.
Background
The oil liquid contains moisture, and particularly, the oil liquid in work contains moisture, so that great harm is caused: such as rust and pitting on the surface of metal parts; separating out the hydrophilic additive; the oil deterioration is accelerated, thereby shortening the service life of the oil, and more seriously shortening the service life of equipment or causing accidents, so the oil containing micro moisture must be dehydrated and filtered. The existing oil liquid dehydration filtration treatment method comprises a vacuum method, a centrifugal separation method and the like, wherein the working procedures are to heat and atomize oil liquid, and then remove water by a vacuum pump, and the method has the defects that: the heating power is large, the working procedure is complex, the equipment volume is large, the weight is heavy, the structure is complex, and the risk of oxidation exists when oil and air are in direct contact.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a vacuum fibrous membrane type oil dewatering device, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the utility model provides a vacuum state fibre membrane type fluid dehydration processing apparatus, includes the oil tank, the oil-out of oil tank passes through the entry linkage of pipeline and low-pressure oil pump, the export of low-pressure oil pump passes through the entry linkage of pipeline and particulate filter, particulate filter's export is passed through the pipeline and is connected with fibre membrane oil water separator's oil feed end, fibre membrane oil water separator's time oil return end pass through the pipeline with the hydraulic fluid inlet of oil tank is connected, fibre membrane oil water separator's gas vent passes through pipeline and vacuum pump connection, install hydrophilicity hollow fiber membrane in the fibre membrane oil water separator.
Further, an air inlet of the fiber membrane oil-water separator is connected with an outlet of the air heater through a pipeline.
Further, the inlet of the air heater is connected with the outlet of the fine air filter through a pipeline, and the inlet of the fine air filter is connected with the outlet of the air dryer.
Further, the inlet of the air dryer is connected to the outlet of the filter through a one-way valve.
Further, the filtration precision of the air fine filter is 0.01 μm.
The invention has the beneficial effects that: according to the vacuum state fiber membrane type oil dehydration treatment device, the hydrophilic hollow fiber membrane is arranged in the fiber membrane oil-water separator, so that when oil to be treated flows through the hollow fiber membrane, oil molecules are not influenced and continuously pass through, water molecules in the oil are adsorbed on the pipe wall by the hydrophilic fiber membrane and permeate to the outer wall of the fiber membrane under the action of differential pressure, the purpose that the state of the oil is not changed is achieved, the water in the oil is simply and effectively removed by adopting equipment with a simple structure, the whole device is operated at low pressure, the electricity consumption and oil leakage risks are reduced, air is not in direct contact with the oil, and the oil is free of oxidation risks;
the air heater is arranged, so that the heated air indirectly heats the fiber membrane, the moisture on the fiber membrane is easy to vaporize, and the dehydration speed is further improved; the wet air in the fiber membrane oil-water separator is pumped out by the vacuum pump, is discharged to the atmosphere, and the negative pressure of the fiber membrane oil-water separator makes the moisture on the fiber membrane wall permeate to the outer wall more quickly under the work of the vacuum pump, so that the dehydration speed is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a vacuum fibrous membrane type oil dewatering device according to an embodiment of the invention;
FIG. 2 is a view showing an internal structure of a fiber membrane separator according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a fiber membrane according to an embodiment of the invention;
in the figure: 1. the device comprises a filter, 2, a one-way valve, 3, an air dryer, 4, an air fine filter, 5, an air heater, 6, a fiber membrane oil-water separator, 7, a vacuum pump, 8, an oil tank, 9, a low-pressure oil pump, 10, a particle filter, 11 and a fiber membrane.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1 to 3, the vacuum fiber membrane type oil dehydration processing apparatus according to the embodiment of the present invention includes an oil tank 8, an oil outlet of the oil tank 8 is connected to an inlet of a low-pressure oil pump 9 through a pipeline, an outlet of the low-pressure oil pump 9 is connected to an inlet of a particle filter 10 through a pipeline, an outlet of the particle filter 10 is connected to an oil inlet of a fiber membrane oil-water separator 6 through a pipeline, an oil return end of the fiber membrane oil-water separator 6 is connected to an oil inlet of the oil tank 8 through a pipeline, an exhaust port of the fiber membrane oil-water separator 6 is connected to a vacuum pump 7 through a pipeline, and a hydrophilic hollow fiber membrane 11 is installed in the fiber membrane oil-water separator 6. The fiber membrane oil-water separator 6, the oil tank 8, the low-pressure oil pump 9 and the particle filter 10 form an oil flow circulation closed loop.
In an embodiment of the invention, the air inlet of the fiber membrane oil-water separator 6 is connected with the outlet of the air heater 5 through a pipeline.
In a specific embodiment of the present invention, the inlet of the air heater 5 is connected to the outlet of the fine air filter 4 through a pipeline, and the inlet of the fine air filter 4 is connected to the outlet of the air dryer 3.
In a specific embodiment of the present invention, the inlet of the air dryer 3 is connected to the outlet of the filter 1 through the check valve 2, and the filter 1, the check valve 2, the air dryer 3, the air polishing filter 4, the air heater 5, the fiber membrane oil-water separator 6, and the vacuum pump 7 form an open loop for air intake and exhaust.
In one embodiment of the present invention, the filtration precision of the air fine filter 4 is 0.01 μm.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
In the vacuum state fiber membrane type oil dewatering treatment device, oil containing water in an oil tank 8 is conveyed into a particle filter 10 by operating a low-pressure oil pump 9, after particle impurities in the oil are filtered out, the oil enters a hydrophilic hollow fiber membrane 11 in a fiber membrane oil-water separator 6, thousands of hollow fiber tubes are arranged in the fiber membrane 11, the oil is shunted and enters the hollow fiber tubes, the water in the oil is intercepted and adsorbed on the tube wall of the hydrophilic fiber membrane 11, micro-water adsorbed on the tube wall of the hydrophilic hollow fiber 11 permeates and diffuses on the outer tube wall of the hydrophilic hollow fiber 11 under the action of differential pressure, and the oil smoothly passes through and returns to the oil tank 8;
the vacuum pump 7 operates to suck trace air, small-flow air enters the pre-filter 1 to remove large particles, enters the air dryer 3 through the one-way valve 2 to remove micro moisture in the air, and is filtered by the micro particle processor 4 with the precision of 0.01um to obtain dry and clean high-quality air, so that the abrasion to the fiber membrane is reduced, and the outer wall of the fiber membrane is kept clean; the air heater 5 heats clean and dry air to 60-80 ℃, the air is sent to the fiber membrane oil-water separator 6 and flows through the outer pipe wall of the hydrophilic hollow fiber membrane 11, and in the fiber membrane oil-water separator 6, the dry and clean hot air not only sweeps, absorbs and carries the moisture on the fiber membrane to the inlet of the vacuum pump 7, but also has the function of heating the fiber membrane, so that the moisture on the fiber membrane is easily vaporized, and the power consumption is lower because the air heater 5 only heats trace air.
Under the work of the vacuum pump 7, the negative pressure of the fiber membrane oil-water separator 6 enables the moisture on the wall of the fiber membrane 11 to permeate to the outer wall more quickly, the dehydration speed is further improved, after the negative pressure in the oil-water separator 6 reaches a certain value, the moisture intercepted and adsorbed on the fiber membrane 11 is filtered, blown by heated hot air and vaporized, and then carried to the inlet of the vacuum pump 7 along with micro airflow, and the vacuum pump 7 removes the moisture containing moisture to the atmosphere. Through the oil circulation many times like this, the moisture in the moisture fluid can be got rid of fast to the fluid, reaches the degree of depth and gets rid of the moisture in the fluid, improves the purpose of fluid quality.
In conclusion, by means of the technical scheme, the hydrophilic hollow fiber membrane is arranged in the fiber membrane oil-water separator, and thousands of hollow fiber tubes are arranged in the hollow fiber membrane, so that when oil to be treated flows through the hollow fiber tubes, oil molecules are not affected and continuously pass through the hollow fiber membrane, water molecules in the oil are adsorbed on the tube wall by the hydrophilic fiber membrane and permeate to the outer wall of the fiber membrane under the action of differential pressure, the aim of not changing the state of the oil is further fulfilled, the purpose of removing moisture in the oil is achieved simply, conveniently and effectively by adopting simple-structure equipment, the whole device is low-pressure operation, the electricity consumption and oil leakage risks are reduced, air is not in direct contact with the oil, and the oil is free of oxidation risks; the air heater is arranged, so that the heated air indirectly heats the fiber membrane, the moisture on the fiber membrane is easy to vaporize, and the dehydration speed is further improved; the wet air in the fiber membrane oil-water separator is pumped out by the vacuum pump, is discharged to the atmosphere, and the negative pressure of the fiber membrane oil-water separator makes the moisture on the fiber membrane wall permeate to the outer wall more quickly under the work of the vacuum pump, so that the dehydration speed is further improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but is intended to cover all modifications, equivalents, improvements, etc. within the spirit and scope of the present invention as defined by the appended claims: the oil pump of the system can be eliminated, and the oil pump utilizing the original system and the like are all included in the protection scope of the invention.
Claims (5)
1. The utility model provides a vacuum state fibre membrane formula fluid dehydration processing apparatus, includes oil tank (8), its characterized in that, the oil-out of oil tank (8) passes through the entry linkage of pipeline and low-pressure oil pump (9), the entry linkage of pipeline and particulate filter (10) is passed through in the export of low-pressure oil pump (9), the export of particulate filter (10) is passed through the pipeline and is connected with the oil feed end of fibre membrane oil water separator (6), the time oil return end of fibre membrane oil water separator (6) pass through the pipeline with the hydraulic fluid inlet of oil tank (8) is connected, the gas vent of fibre membrane oil water separator (6) passes through the pipeline and is connected with vacuum pump (7), install hydrophilic fibre membrane (11) in fibre membrane oil water separator (6).
2. The vacuum fiber membrane type oil dewatering device according to claim 1, wherein an air inlet of the fiber membrane oil-water separator (6) is connected to an outlet of the air heater (5) through a pipeline.
3. The vacuum state fiber membrane type oil dewatering device according to claim 2, characterized in that an inlet of the air heater (5) is connected with an outlet of an air fine filter (4) through a pipeline, and an inlet of the air fine filter (4) is connected with an outlet of the air dryer (3).
4. The vacuum state fiber membrane type oil dewatering device according to claim 3, characterized in that the inlet of the air dryer (3) is connected with the outlet of the filter (1) through a one-way valve (2).
5. The vacuum fibrous membrane type oil dewatering device according to claim 3, wherein the filtration accuracy of the air polishing filter (4) is 0.01 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178596.3A CN110787488A (en) | 2019-11-27 | 2019-11-27 | Vacuum state fiber membrane type oil dewatering treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911178596.3A CN110787488A (en) | 2019-11-27 | 2019-11-27 | Vacuum state fiber membrane type oil dewatering treatment device |
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| CN110787488A true CN110787488A (en) | 2020-02-14 |
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| CN201911178596.3A Pending CN110787488A (en) | 2019-11-27 | 2019-11-27 | Vacuum state fiber membrane type oil dewatering treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843793A (en) * | 2020-12-04 | 2021-05-28 | 中国石油大学(华东) | Method for enhancing oil-water emulsion separation performance and preventing blockage of fiber membrane by using negative pressure suction filtration demulsification |
| CN113244661A (en) * | 2021-05-24 | 2021-08-13 | 西安石油大学 | Dehydration purification device and dehydration purification method |
| CN113368539A (en) * | 2021-06-11 | 2021-09-10 | 西安石油大学 | Lubricating oil dehydration and purification device and method based on molecular sieve membrane |
-
2019
- 2019-11-27 CN CN201911178596.3A patent/CN110787488A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843793A (en) * | 2020-12-04 | 2021-05-28 | 中国石油大学(华东) | Method for enhancing oil-water emulsion separation performance and preventing blockage of fiber membrane by using negative pressure suction filtration demulsification |
| CN113244661A (en) * | 2021-05-24 | 2021-08-13 | 西安石油大学 | Dehydration purification device and dehydration purification method |
| CN113368539A (en) * | 2021-06-11 | 2021-09-10 | 西安石油大学 | Lubricating oil dehydration and purification device and method based on molecular sieve membrane |
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