CN114653099A - Oil purifying device - Google Patents
Oil purifying device Download PDFInfo
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- CN114653099A CN114653099A CN202210415495.9A CN202210415495A CN114653099A CN 114653099 A CN114653099 A CN 114653099A CN 202210415495 A CN202210415495 A CN 202210415495A CN 114653099 A CN114653099 A CN 114653099A
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- 230000007246 mechanism Effects 0.000 claims abstract description 120
- 239000007788 liquid Substances 0.000 claims abstract description 101
- 238000000746 purification Methods 0.000 claims abstract description 46
- 238000011049 filling Methods 0.000 claims abstract description 35
- 238000007872 degassing Methods 0.000 claims abstract description 12
- 230000018044 dehydration Effects 0.000 claims abstract description 8
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 8
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 230000005501 phase interface Effects 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 18
- 238000002604 ultrasonography Methods 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000001556 precipitation Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 257
- 235000019198 oils Nutrition 0.000 description 257
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 13
- 208000005156 Dehydration Diseases 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000012071 phase Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0073—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042
- B01D19/0078—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042 by vibration
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention discloses an oil purifier. Comprises an oil purifying container, a negative pressure generating mechanism, a distributor, a filling mechanism, a liquid descending mechanism and an ultrasonic generating mechanism; the clean oil container is internally provided with a clean oil space and an oil storage space which are communicated; the negative pressure generating mechanism is used for enabling the oil purifying space to form negative pressure; the distributor, the filling mechanism, the liquid descending mechanism and the ultrasonic generating mechanism are accommodated in the oil purifying space, and the distributor is used for receiving oil entering from the outside, uniformly dispersing and then uniformly guiding the flow; the filling mechanism is used for receiving the oil product guided by the distributor, and the oil product can form a gas-liquid phase interface on the filling mechanism so as to degas and dewater the oil product under negative pressure; the liquid descending mechanism is used for receiving the oil product flowing out of the filling mechanism and enabling the oil product to flow downwards into the oil storage space in the oil purifying container along the gravity direction; the ultrasonic generating mechanism is arranged on the liquid descending mechanism and used for generating ultrasonic waves to perform degassing and dehydration on the oil product in cooperation with negative pressure. The invention solves the technical problem of low oil purification efficiency in the prior art.
Description
Technical Field
The invention relates to the technical field of oil purification, in particular to an oil purifier.
Background
The oil generally plays the role of insulation, heat conduction and heat dissipation in oil-filled electrical equipment, wherein, in the long-term operation process of a transformer, the oil can generate moisture and mix with air, and factors such as an electric field, heat and electric arc in the oil in the operation process of the equipment can also cause the oil to be decomposed to generate gas, and the micro-moisture and gas content in the oil are gradually increased along with the long-term operation of the equipment and the continuous evolution of oil faults, and particularly when the total gas content in the oil continuously rises to exceed the maximum dissolving capacity of the oil to the gas, the generated gas evolution phenomenon can greatly influence the insulation performance of the oil, the integral insulation level of the equipment is reduced, and operation accidents are even caused in case of danger. Therefore, the purification treatment of degassing and dehydrating the oil product through the oil purifier is an important technical means for ensuring the performance of the oil product, but the existing oil purifier has the problems of more cycle times, long time consumption and high heating energy consumption, so that the oil purifier is not high in efficiency.
Disclosure of Invention
In view of this, the invention provides an oil purifying device, which is used for solving the technical problem of low oil purifying efficiency in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
an oil purification apparatus, comprising:
the oil purifying container is internally provided with an oil purifying space and an oil storage space, and the oil purifying space is communicated with the oil storage space;
the negative pressure generating mechanism is arranged in the oil purifying container and is used for enabling the pressure in the oil purifying space to be lower than the normal pressure so as to form negative pressure;
the distributor is accommodated in the oil purifying space and used for receiving the oil product entering the oil purifying space from the outside and uniformly guiding the flow of the oil product after the oil product is uniformly dispersed;
the filling mechanism is accommodated in the oil purifying space and used for receiving the oil product uniformly guided by the distributor, and the oil product can form a gas-liquid phase interface on the filling mechanism so as to degas and dewater the oil product under negative pressure;
the liquid descending mechanism is accommodated in the oil purifying space and used for receiving the oil product flowing out of the filling mechanism and enabling the oil product to flow downwards into the oil storage space in the oil purifying container along the gravity direction; and
the ultrasonic generating mechanism is contained in the oil purifying space and is arranged on the liquid descending mechanism, and the ultrasonic generating mechanism is used for generating ultrasonic waves to perform degassing and dehydration on the oil product by matching with negative pressure.
In some embodiments of the oil purifying device, an air storage space is further disposed in the oil purifying container, and the air storage space is located on a side of the oil purifying space away from the oil storage space and is communicated with the oil purifying space; the oil purifying device further comprises an air guide mechanism, the air guide mechanism is contained in the oil purifying space and is arranged on the liquid descending mechanism, and the air guide mechanism is used for guiding air separated from oil products to the air storage space.
In some embodiments of the oil purifying device, the liquid descending mechanism includes a collecting element and a liquid descending assembly, the liquid descending assembly is connected to the wall of the oil purifying container and is spaced apart from the filling mechanism, the collecting element is disposed between the liquid descending assembly and the filling mechanism and is used for receiving the oil product flowing out from the filling mechanism, and a gap is formed between the collecting element and the wall of the oil purifying container, and is used for guiding the oil product to the liquid descending assembly through the gap.
In some embodiments of the oil purifying device, the air guide mechanism includes a first air guide element, a second air guide element and a shielding member, the first air guide element is installed on the liquid descending assembly, the liquid descending assembly is provided with a first surface opposite to the collecting element, an orthographic projection of the notch towards the first surface is a liquid descending area, the orthographic projection of the first air guide element towards the first surface is located outside the liquid descending area, the second air guide element penetrates through the collecting element so as to be capable of being in airflow communication with the first air guide element, and thus, air can be guided to the air storage space through the first air guide element, the second air guide element, the filler mechanism and the distributor in sequence; the shielding piece is arranged at the end part of the second air guide element close to the filling mechanism so as to prevent oil from flowing into the down-flow assembly through the second air guide element.
In some embodiments of the oil purifying device, the down-flow assembly includes a plurality of overflow weirs, a plurality of first down-flow plates, and a plurality of down-flow elements, each of the overflow weirs is connected to each of the down-flow elements in a one-to-one correspondence, each of the first down-flow plates is connected to each of the down-flow elements in a one-to-one correspondence, and a down-flow pipe is formed between each of the first down-flow plates and a wall of the oil purifying vessel, adjacent down-flow pipes of the upper and lower stages are far away from each other and distributed in a staggered manner, and the down-flow pipe close to the collecting element is arranged on a side far away from the down-flow region; the number of the first air guide elements is multiple, each first air guide element penetrates through each liquid descending element in a one-to-one correspondence mode, and the height of each first air guide element is larger than that of each corresponding overflow weir.
In some embodiments of the oil purifying device, the liquid descending assembly further comprises a plurality of oil discharge valves, and each oil discharge valve is installed in the liquid descending element in a one-to-one correspondence manner and is used for discharging oil products on the liquid descending element out of the liquid descending element.
In some embodiments of the oil purifier, the ultrasonic generating mechanism includes a plurality of sets of ultrasonic generating assemblies, and each set of ultrasonic generating assemblies is mounted to each of the liquid descending elements in a one-to-one correspondence.
In some embodiments of the oil cleaning apparatus, the weir height is greater than the ultrasonic-generating assembly height to enable the ultrasonic-generating assembly to be fully submerged in the oil product on the downcomer element.
In some embodiments of the oil purifying device, a plurality of observation holes are formed on an outer side wall of the oil purifying container, and the plurality of observation holes are respectively located at the following positions: a position corresponding to the packing mechanism to enable the packing mechanism to be externally observed; corresponding to between the collecting element and the downcomer assembly, so that the collecting element, the downcomer assembly and the ultrasound generating assembly can be observed from the outside; between adjacent said precipitation assemblies corresponding to upper and lower stages to enable said precipitation assemblies and said ultrasound generating assembly to be externally visible.
In some embodiments of the oil purifying device, the filling mechanism includes a support and a filling element, the support is disposed between the liquid descending mechanism and the distributor and is fixedly connected with the wall of the oil purifying container, the filling element is disposed between the support and the distributor, and the filling element is configured to receive the oil uniformly guided after the distributor is homogenized and form a gas-liquid phase interface so as to degas and dewater the oil under a negative pressure state; the support is for supporting the packing element.
In some embodiments of the oil purifying device, the range of the vacuum degree of the oil purifying space forming the negative pressure under the action of the negative pressure generating mechanism is as follows: -0.08 to 0.099 MPa.
In some embodiments of the oil cleaning apparatus, the ultrasonic generating assembly comprises a plurality of ultrasonic generating elements, each of the ultrasonic generating elements having a power of 100W and a resonant frequency of (28 ± 0.5) kHz; the power density of the ultrasonic generating mechanism is 2800W/m2。
The embodiment of the invention has the following beneficial effects:
the distributor of the oil purifying device can introduce oil entering an oil purifying space in an oil purifying container from the outside into the distributor, and then the oil is uniformly distributed to the filling mechanism through the distributor, so that the oil can form a large gas-liquid two-phase contact interface on the surface of the filling mechanism, partial water and gas in the oil can be rapidly removed through the gas-liquid two-phase contact interface under the negative pressure generated by the negative pressure generating mechanism, and then through the ultrasonic generating mechanism on the liquid descending mechanism, in the liquid descending process, the ultrasonic generating mechanism is matched with the negative pressure generated by the negative pressure generating mechanism, so that the ultrasonic degassing and dehydration treatment under the negative pressure is further carried out on the oil, the purification efficiency is improved, the circulation purification for multiple times is avoided, and the technical problem of low oil purifying efficiency in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a simplified oil purification apparatus according to an embodiment;
FIG. 2 is a schematic view showing the overall structure of an oil purifying device according to an embodiment;
FIG. 3 is a schematic view of a connection structure of a descender element and an ultrasonic generator assembly according to an embodiment.
Wherein: 1. an oil purifying container; 11. a gas storage space; 12. an oil-clean space; 13. an oil storage space; 14. an exhaust pipe; 15. an oil discharge pipe; 2. a negative pressure generating mechanism; 3. an oil inlet pump; 4. an oil discharge pump; 5. a distributor; 6. a filling mechanism; 61. a packing element; 62. a support member; 7. a liquid dropping mechanism; 71. a collecting element; 72. a second downcomer panel; 73. a down-flow assembly; 731. a down-flow element; 732. an overflow weir; 733. an oil discharge valve; 734. a downcomer; 735. a first downcomer plate; 8. an ultrasonic generating mechanism; 81. an ultrasound generating element; 9. a liquid level indicator; 10. an air guide mechanism; 101. a first air guide element; 102. a second air guide element; 103. a shield.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The existing oil purifying device has the problems of multiple circulation times, long time consumption and high heating energy consumption, and the oil purifying efficiency is not high.
As shown in fig. 1 to 3, in an embodiment of the oil purification apparatus, the oil purification apparatus includes an oil purification container 1, a negative pressure generating mechanism 2, a distributor 5, a packing mechanism 6, a liquid dropping mechanism 7, and an ultrasonic generating mechanism 8. The oil purifying container 1 is internally provided with an oil purifying space 12 and an oil storage space 13, and the oil purifying space 12 is communicated with the oil storage space 13. The negative pressure generating mechanism 2 is installed in the oil purification container 1 and is used for making the pressure in the oil purification space 12 lower than the normal pressure to form a negative pressure. The distributor 5 is accommodated in the clean oil space 12 and is used for receiving the oil product entering the clean oil space 12 from the outside and uniformly guiding the flow of the oil product after the oil product is uniformly dispersed. The filling mechanism 6 is accommodated in the clean oil space 12 and used for receiving the oil product uniformly guided by the distributor 5, and the oil product can form a gas-liquid phase interface on the filling mechanism 6 so as to degas and dewater the oil product under negative pressure. The liquid descending mechanism 7 is accommodated in the clean oil space 12 and is used for receiving the oil product flowing out of the filling mechanism 6 and enabling the oil product to flow downwards into the oil storage space 13 in the clean oil container 1 along the gravity direction. The ultrasonic generating mechanism 8 is accommodated in the clean oil space 12 and is installed on the liquid descending mechanism 7, and the ultrasonic generating mechanism 8 is used for generating ultrasonic waves to match negative pressure to degas and dewater oil products.
In the embodiment, the distributor 5 in the oil purification device can uniformly disperse the oil entering the oil purification space 12 from the outside, guide and distribute the oil to the filler mechanism 6, in this way, the oil can form a large gas-liquid two-phase contact interface on the surface of the filler mechanism 6, under the negative pressure generated by the negative pressure generating mechanism 2, part of water and gas in the oil can be rapidly removed through the gas-liquid two-phase contact interface, and then through the ultrasonic generating mechanism 8 on the liquid descending mechanism 7, in the liquid descending process, the ultrasonic generating mechanism 8 cooperates with the negative pressure generated by the negative pressure generating mechanism 2 to further perform ultrasonic degassing and dehydration treatment on the oil under the negative pressure, so that the purification efficiency is improved, multiple purification in circulation is avoided, and the technical problem of low oil purification efficiency in the prior art is solved.
It is understood that the dispersion action of the distributor 5 refers to uniform dispersion.
In an embodiment of the oil purifying device, the oil purifying container 1 is further provided with an air storage space 11 therein, and the air storage space 11 is located at one side of the oil purifying space 12 far away from the oil storage space 13 and is communicated with the oil purifying space 12. The oil purifying device also comprises an air guide mechanism 10, the air guide mechanism 10 is contained in the oil purifying space 12 and is arranged on the liquid descending mechanism 7, and the air guide mechanism 10 is used for guiding the gas separated from the oil products to the gas storage space 11.
In the present embodiment, specifically, the oil purifying container 1 may be a cylindrical structure, and preferably, the oil purifying container 1 is vertically arranged, so it can be understood that, in order to facilitate the flow of oil products, the gas storage space 11 is located above the oil purifying container 1, the oil purifying space 12 is located in the middle of the oil purifying container 1, and the oil storage space 13 is located below the oil purifying container 1. Through setting up air guide mechanism 10, can be with the gas conductance in the gas storage space 11 of desorption from the oil among the purification process, avoid because the gas stays in the clean oil space 12 in the in-process that rises redissolves among the oil.
In addition, the upper end of the oil purification container 1 is provided with an exhaust pipe 14, the exhaust pipe 14 can communicate the gas storage space 11 with the outside, and the gas removed from the oil product can be guided out of the oil purification container 1 through the exhaust pipe 14. An oil discharge pipe 15 is provided at the lower end of the oil purification container 1, and the oil discharge pipe 15 can communicate the oil storage space 13 with the outside, so that the oil product contained in the oil storage space 13 and purified can be guided out of the oil purification container 1.
Preferably, the outer side wall of the oil purification container 1 corresponding to the position of the oil storage space 13 can be provided with a liquid level indicator 9, the liquid level indicator 9 is used for detecting the liquid level height in the oil storage space 13, and when the liquid level height is higher than a set value, a worker can be prompted to discharge oil in the oil storage space 13, so that the liquid level height in the oil storage space 13 is maintained stable.
In addition, specifically, the negative pressure generating mechanism 2 may be a vacuum pump, and the vacuum pump may be communicated with the gas storage space 11 through the exhaust pipe 14 and further communicated with the oil purification space 12, and may pump the gas out of the oil purification container 1, and form a vacuum negative pressure, so that the pressure of the oil purification space 12 is lower than the normal pressure, which is understood to be an atmospheric pressure in the normal language. Further, it is understood that oil can be pumped into the oil purification vessel 1 through the oil feed pipe by the oil feed pump 3, and pumped out of the oil purification vessel 1 through the oil discharge pipe 15 by the oil discharge pump 4.
Preferably, the vacuum degree range of the oil purifying space 12 forming the negative pressure state under the action of the negative pressure generating mechanism 2 is-0.08-0.099 MPa.
In an embodiment of the oil purifying device, the liquid descending mechanism 7 includes a collecting element 71 and a liquid descending assembly 73, the liquid descending assembly 73 is connected to a wall of the oil purifying container 1 and is arranged at a distance from the packing mechanism 6, the collecting element 71 is arranged between the liquid descending assembly 73 and the packing mechanism 6 and is used for receiving oil products flowing out from the packing mechanism 6, and a gap is formed between the collecting element 71 and the wall of the oil purifying container 1 and is used for guiding the oil products to the liquid descending assembly 73 through the gap.
In this embodiment, through setting up collecting element 71, can avoid the oil directly to fall down on the liquid subassembly 73, one side is located to the breach, can be with oil water conservancy diversion to the liquid subassembly 73 through the breach in, can also make the oil pass through completely and cover liquid subassembly 73, be favorable to separating out moisture and gas in the oil from the oil.
Further, the down-flow mechanism 7 further includes a second down-flow plate 72, the second down-flow plate 72 is connected to the end of the collecting element 71 forming the gap, that is, the second down-flow plate 72 can be understood as the extension of the end of the collecting element 71 forming the gap towards the down-flow assembly 73, a down-flow area can be formed between the second down-flow plate 72 and the oil purifying container 1 by setting the second down-flow plate, the interval between the second down-flow plate 72 and the down-flow assembly 73 is small, so that the function of guiding flow is achieved, the oil product is prevented from directly falling onto the down-flow assembly 73 through the gap to generate splashing, and the oil product is dispersed in the descending process.
In particular, the collecting member 71 may be a plate-shaped structure, and preferably, when the oil purification vessel 1 is vertically placed, the collecting member 71 is horizontally disposed, and the second downcomer 72 is perpendicular to the collecting member 71.
In an embodiment of the oil cleaning device, the air guide mechanism 10 includes a first air guide element 101, a second air guide element 102 and a shielding member 103, the first air guide element 101 is mounted on the liquid descending module 73, the liquid descending module 73 is provided with a first surface opposite to the collecting element 71, an orthographic projection of the gap towards the first surface is a liquid descending area, and an orthographic projection of the first air guide element 101 towards the first surface is located outside the liquid descending area. The second air guide element 102 penetrates the collecting element 71 to be capable of being in air flow communication with the first air guide element 101, and further capable of guiding the gas to the gas storage space 11 sequentially through the first air guide element 101, the second air guide element 102, the filling mechanism 6 and the distributor 5. A shield 103 is mounted to the end of the second air guide element 102 adjacent the packing mechanism 6 to prevent oil from flowing into the downcomer assembly 73 via the second air guide element 102.
In this embodiment, it can be understood that the gap faces the orthographic projection area of the liquid descending assembly 73, that is, the orthographic projection area of the liquid descending assembly 73, and by arranging the first air guide element 101 outside the orthographic projection area, oil can be prevented from entering the first air guide element 101. The oil products flowing down vertically from the filling mechanism 6 can be prevented from entering the second air guide element 102 through the shielding piece 103, so that the oil products are prevented from directly passing through the liquid descending structure from the air guide element to ensure the dehydration and degassing effects of the oil products, and meanwhile, the inner walls and the internal structures of the first air guide element 101 and the second air guide element 102 are prevented from being polluted.
Preferably, the first gas guide element 101 and the second gas guide element 102 may be both tubular structures, and preferably, the first gas guide element 101 and the second gas guide element 102 are vertically arranged, so that the vertical rising of the gas is facilitated, and the rising speed of the gas is accelerated.
Specifically, the shielding member 103 may be a cap structure, and may be disposed to be spaced from the upper end of the second air guide element 102, an orthographic projection of the shielding member 103 toward the upper end surface of the second air guide element 102 may cover the upper end port, so as to shield the upper end port, and the shielding member 103 may be fixedly connected to the upper end surface of the second air guide element 102 and close the upper end port, at this time, the gas may overflow from a hole formed in the sidewall of the second air guide element 102.
In addition, the number of the second air guide elements 102 may be multiple, each of the second air guide elements 102 is uniformly distributed on the collecting element 71, and correspondingly, the number of the shielding members 103 is multiple, and the shielding members are correspondingly arranged on each of the second air guide elements 102 one by one.
In an embodiment of the oil cleaning device, the downcomer assembly 73 includes a plurality of overflow weirs 732, a plurality of first downcomer plates 735, and a plurality of downcomer elements 731, each overflow weir 732 is connected to each downcomer element 731 in a one-to-one correspondence, each first downcomer plate 735 is connected to each downcomer element 731 in a one-to-one correspondence, and forms a downcomer 734 with the wall of the oil cleaning vessel 1, adjacent downcomers 734 of the upper and lower stages are distributed in a staggered manner, and the downcomer 734 adjacent to the notch is arranged at a side away from the notch. The number of the first air guide elements 101 is multiple, each first air guide element 101 penetrates through each liquid descending element 731 in a one-to-one correspondence manner, and the height of each first air guide element 101 is greater than that of each corresponding overflow weir 732.
In the present embodiment, specifically, the liquid descending member 731 may be a tray structure, and the liquid descending member 731 is a plate structure as a whole, and preferably, is horizontally placed. Weir 732 and first downcomer 735 may both be plate-like structures, and preferably, weir 732 and first downcomer 735 may also form an integral large plate, i.e. it is understood that the upper end of the large plate extends beyond downcomer 731 to form weir 732, and the lower end of the large plate also extends beyond downcomer 731 to form first downcomer 735, and oil can be stored on downcomer 731 at a certain height by weir 732, so that oil can be sufficiently contacted with downcomer 731 to remove moisture and gas from oil.
Preferably, the downcomer 734 is an arc downcomer 734, and it can be understood that, when the oil purification vessel 1 is a cylindrical structure, the overflow weir 732 and the first downcomer 735 are vertically arranged to be perpendicular to the downcomer 731, and the same two sides of the overflow weir 732 and the first downcomer 735 are in contact with the inner wall of the oil purification vessel 1, so that the arc downcomer 734 can be formed, and compared with a circular shape, the arc downcomer 734 has a large flow section, so that sufficient space can be provided for separating bubbles in the oil product, thereby reducing the bubble entrainment phenomenon and improving the efficiency of the tray.
In addition, as can be understood from fig. 2, the flow path of the oil in the downcomer means 7 is S-shaped by distributing the downcomers 734 away from each other in a staggered manner.
It can be understood that the surface of the liquid descending element 731 adjacent to the collecting element 71 is the first surface, and so on, if the number of the liquid descending elements 731 is three, the upper surface of the upper liquid descending element 731 is the first surface, the upper surface of the middle liquid descending element 731 is the second surface, the upper surface of the lower liquid descending element 731 is the third surface, the upper downcomer 734 forms an orthographic projection area on the middle liquid descending element 731, and the orthographic projection of the first gas guide element 101 on the middle liquid descending element 731 towards the second surface is located outside the area, and so on will not be described again.
In an embodiment of the oil purifying apparatus, the liquid descending assembly 73 further includes a plurality of oil discharge valves 733, and each oil discharge valve 733 is installed in the liquid descending element 731 in a one-to-one correspondence manner and is used for discharging the oil products on the liquid descending element 731 out of the liquid descending element 731.
In this embodiment, by providing the oil discharge valve 733, the oil retained on the liquid descending element 731 by the overflow weir 732 can be discharged to the liquid descending element 731 opposite to the oil discharge valve 733, and it can be understood that the oil on the liquid descending element 731 above flows to the adjacent liquid descending element 731 below via the oil discharge valve 733, and so on until the oil is accumulated on the lowermost liquid descending element 731, and is discharged to the oil storage space 13 via the oil discharge valve 733 on the lowermost liquid descending element 731. By providing the oil discharge valve 733, the oil on the dewatering element 731 can be discharged from the dewatering element 731 after the oil filtration is completed.
In an embodiment of the oil cleaning device, the ultrasonic generating mechanism 8 comprises a plurality of sets of ultrasonic generating components, and each set of ultrasonic generating components is installed on each liquid descending element 731 in a one-to-one correspondence manner.
In this embodiment, all install the supersound on each precipitation component 731 and produce the subassembly, the oil passes through each precipitation component 731, can both carry out supersound degasification and dehydration, and the cooperation negative pressure effect promotes purification efficiency.
Further, each ultrasonic generating assembly comprises a plurality of ultrasonic generating elements 81, and each ultrasonic generating element 81 is uniformly distributed on each liquid descending element 731, so that the oil on the liquid descending elements 731 can be uniformly subjected to ultrasonic degassing and dehydration treatment.
In one embodiment of the oil cleaning apparatus, weir 732 is taller than the height of the ultrasound generating assembly to enable the ultrasound generating assembly to be completely submerged in the oil on the liquid descending member 731.
In this embodiment, it can be understood that the height of the overflow weir 732 is greater than that of the ultrasound generating element 81, and after the ultrasound generating element 81 is completely immersed in the oil product and then subjected to ultrasound, the emitted ultrasonic waves can be completely applied to the oil product, thereby improving the efficiency of the ultrasonic treatment.
It will be appreciated that in this embodiment, the end of the first gas directing element 101 remote from the liquid descending element 731 is spaced from the liquid descending element 731 by a distance greater than the height of the oil stored in the liquid descending element 731.
Preferably, each ultrasonic-wave generating element 81 has a power of 100W and a resonance frequency of (28. + -. 0.5) kHz. As shown in fig. 3, five ultrasonic generating elements 81 can be uniformly distributed on each liquid descending element 731, so that the emitted ultrasonic waves can be better applied to the oil product. Further preferably, the power density of the ultrasonic generating means 8 is 2800W/m2. That is, it can be understood that each ultrasonic-wave generating element 81 is made to have a power density of 2800W/m2Is arranged at the precipitation element 731.
In an embodiment of the oil purifying device, a plurality of observation holes (not shown) are provided on the outer sidewall of the oil purifying container 1, and the plurality of observation holes are respectively located at the following positions: at a position corresponding to the packing mechanism 6 to enable the packing mechanism 6 to be viewed from the outside; corresponding to the space between collecting element 71 and downcomer assembly 73 to enable external viewing of collecting element 71, downcomer assembly 73 and ultrasound generating assembly; corresponding to the space between adjacent downcomer assemblies 73 of the upper and lower stages, so that the downcomer assemblies 73 and ultrasound generating assemblies can be externally observed.
In this embodiment, by providing the observation hole, it is possible to facilitate the worker to observe the working conditions of the packing mechanism 6, the collection member 71, the precipitation assembly 73, and the ultrasound generating member 81 inside the oil purification vessel 1, and the worker can also maintain the packing mechanism 6, the collection member 71, the precipitation assembly 73, and the ultrasound generating member 81 through the observation hole.
In an embodiment of the oil purification apparatus, the oil purification apparatus further comprises a pressure gauge, which is mounted on the oil purification container 1 and is used for detecting the pressure inside the oil purification container 1. By detecting the pressure, it is possible to determine the pressure in the clean oil space 12 and thus whether the pressure meets the conditions.
In an embodiment of the oil purifying device, the packing mechanism 6 comprises a support 62 and a packing element 61, the support 62 is arranged between the liquid descending mechanism 7 and the distributor 5 and is fixedly connected with the wall of the oil purifying container 1, the packing element 61 is arranged between the support 62 and the distributor 5, and the packing element 61 is used for receiving the oil uniformly guided after being dispersed by the distributor 5 and forming a gas-liquid phase interface so as to degas and dewater the oil under a negative pressure state. The support 62 serves to support the packing element 61. Specifically, the packing used by the packing element 61 is one of a raschig ring and a pall ring.
In this embodiment, the supporting member 62 may be a circular plate-shaped structure, the supporting member 62 is horizontally disposed, and the peripheral side wall of the supporting member 62 is fixedly connected to the wall of the oil purification container 1, the fixing manner may be welding, and when the oil purification container 1 is vertically disposed, the supporting member 62 may further support the packing element 61 by a protrusion or a block or the like. The packing elements 61 are preferably pall rings, which have low resistance and high elasticity, and can improve productivity and save packing volume.
It is understood that the oil of the present invention may be insulating oil in transformers, but also other oils, such as mineral and vegetable oils, etc. It should be clear that the oil purifier of the present invention can be recycled to achieve a better purification effect, and the following is the experimental data of 300L of the cyclic purification treatment of the oil sample taken by the oil purifier of the present invention:
| time, h | Oil temperature, deg.C | Degree of vacuum, MPa | Air content,% (volume fraction) | Water content, mg/L |
| 0 | 16.5 | -0.052 | 6.9 | 51 |
| 0.5 | 19.3 | -0.075 | 2.7 | 23 |
| 1 | 21.1 | -0.078 | 1.4 | 12 |
| 2 | 22.9 | -0.078 | 1.02 | 7 |
| 3 | 25.1 | -0.078 | 0.93 | 5 |
| 4 | 25.5 | -0.078 | 0.88 | 4 |
And the experimental data of the comparative example of 300L circulation purification treatment of the oil sample obtained by adopting the traditional vacuum heating degassing device are as follows:
| time, h | Oil temperature, deg.C | Degree of vacuum, MPa | Air content,% (volume fraction) | Water content, mg/L |
| 0 | 16.5 | -0.052 | 6.9 | 51 |
| 0.5 | 42.5 | -0.073 | 6.3 | 45 |
| 1 | 56.9 | -0.078 | 5.7 | 40 |
| 2 | 67.8 | -0.078 | 4.7 | 33 |
| 3 | 74.7 | -0.078 | 3.5 | 25 |
| 4 | 78.1 | -0.078 | 2.4 | 19 |
| 5 | 78.3 | -0.078 | 1.4 | 16 |
| 6 | 78.3 | -0.078 | 1.21 | 12 |
| 7 | 78.3 | -0.078 | 1.02 | 9 |
| 8 | 78.3 | -0.078 | 0.91 | 7 |
The experimental data show that the oil purifier can meet the requirements of running oil of equipment such as transformers and the like compared with the traditional vacuum heating degassing device, but the water content and the gas content of oil products treated by the oil purifier are obviously reduced, the purification treatment of the transformer oil can be realized within about 2-3 hours, the efficiency is improved by more than 70% compared with the traditional vacuum heating degassing device, heating is not needed, and the energy consumption is reduced by more than 40%.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show several embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. An oil purification apparatus, comprising:
the oil purifying container is internally provided with an oil purifying space and an oil storage space, and the oil purifying space is communicated with the oil storage space;
the negative pressure generating mechanism is arranged in the oil purifying container and is used for enabling the pressure in the oil purifying space to be lower than the normal pressure so as to form negative pressure;
the distributor is accommodated in the oil purification space and used for receiving the oil product entering the oil purification space from the outside and uniformly guiding the flow of the oil product after the oil product is uniformly dispersed;
the filling mechanism is accommodated in the oil purifying space and used for receiving the oil product uniformly guided by the distributor, and the oil product can form a gas-liquid phase interface on the filling mechanism so as to degas and dewater the oil product under negative pressure;
the liquid descending mechanism is accommodated in the oil purifying space and used for receiving the oil product flowing out of the filling mechanism and enabling the oil product to flow downwards into the oil storage space in the oil purifying container along the gravity direction; and
the ultrasonic generating mechanism is contained in the oil purifying space and is arranged on the liquid descending mechanism, and the ultrasonic generating mechanism is used for generating ultrasonic waves to perform degassing and dehydration on the oil product by matching with negative pressure.
2. The oil purifying device as claimed in claim 1, wherein a gas storage space is further provided in the oil purifying container, and the gas storage space is located at a side of the oil purifying space away from the oil storage space and is communicated with the oil purifying space; the oil purifying device further comprises an air guide mechanism, the air guide mechanism is contained in the oil purifying space and is installed in the liquid descending mechanism, and the air guide mechanism is used for guiding air separated from oil products to the air storage space.
3. The oil cleaning device according to claim 2, wherein the liquid descending mechanism comprises a collecting element and a liquid descending assembly, the liquid descending assembly is connected to the wall of the oil cleaning container and is spaced from the filling mechanism, the collecting element is arranged between the liquid descending assembly and the filling mechanism and is used for receiving the oil product flowing out from the filling mechanism, and a gap is formed between the collecting element and the wall of the oil cleaning container and is used for guiding the oil product to the liquid descending assembly through the gap.
4. The oil purifying device as claimed in claim 3, wherein the air guide mechanism includes a first air guide element, a second air guide element and a shielding member, the first air guide element is mounted to the liquid descending assembly, the liquid descending assembly is provided with a first surface opposite to the collecting element, an orthographic projection of the gap towards the first surface is a liquid descending area, an orthographic projection of the first air guide element towards the first surface is located outside the liquid descending area, the second air guide element penetrates through the collecting element so as to be capable of being in air flow communication with the first air guide element, and further capable of guiding the air to the air storage space through the first air guide element, the second air guide element, the filler mechanism and the distributor in sequence; the shielding piece is arranged at the end part of the second air guide element close to the filling mechanism so as to prevent oil from flowing into the down-flow assembly through the second air guide element.
5. The oil cleaning device of claim 4, wherein the downcomer assembly comprises a plurality of overflow weirs, a plurality of first downcomer plates and a plurality of downcomer elements, each overflow weir is connected to each downcomer element in a one-to-one correspondence, each first downcomer plate is connected to each downcomer element in a one-to-one correspondence, and a downcomer is formed between each downcomer plate and the wall of the oil cleaning vessel, adjacent downcomers of the upper and lower stages are distributed in a staggered manner, and the downcomer adjacent to the collecting element is arranged on the side far away from the downcomer region;
the number of the first air guide elements is multiple, each first air guide element penetrates through each liquid descending element in a one-to-one correspondence mode, and the height of each first air guide element is larger than that of each corresponding overflow weir.
6. The oil cleaning apparatus as claimed in claim 5, wherein the down-flow unit further comprises a plurality of oil discharge valves, each of the oil discharge valves being installed in a one-to-one correspondence to each of the down-flow elements and adapted to discharge the oil products on the down-flow elements out of the down-flow elements.
7. The oil cleaning device according to claim 5 or 6, wherein the ultrasonic generating mechanism comprises a plurality of sets of ultrasonic generating assemblies, and each set of ultrasonic generating assemblies is mounted on each of the liquid descending elements in a one-to-one correspondence.
8. The oil cleaning apparatus as claimed in claim 7, wherein the weir height is greater than the ultrasonic generating assembly height to enable the ultrasonic generating assembly to be fully submerged in the oil product on the downcomer element.
9. The oil cleaning device as claimed in claim 3, wherein a plurality of observation holes are provided on the outer sidewall of the oil cleaning container, and the plurality of observation holes are respectively located at the following positions: a position corresponding to the packing mechanism to enable the packing mechanism to be externally observed; corresponding to between the collecting element and the downcomer assembly, so that the collecting element, the downcomer assembly and the ultrasound generating assembly can be observed from the outside; between adjacent said precipitation assemblies corresponding to upper and lower stages to enable said precipitation assemblies and said ultrasound generating assembly to be externally visible.
10. The oil purifying device of claim 1, wherein the filling mechanism comprises a support member and a filling element, the support member is disposed between the liquid descending mechanism and the distributor and is fixedly connected to the wall of the oil purifying container, the filling element is disposed between the support member and the distributor, and the filling element is configured to receive the oil uniformly guided after the oil is dispersed by the distributor and form a gas-liquid phase interface to degas and dewater the oil under a negative pressure condition; the support is for supporting the packing element.
11. The oil purifying device as claimed in claim 1, wherein the vacuum degree range of the oil purifying space forming the negative pressure under the action of the negative pressure generating mechanism is as follows: -0.08 to 0.099 MPa.
12. The oil cleaning apparatus as claimed in claim 7, wherein the ultrasonic generating assembly includes a plurality of ultrasonic generating elements, each of the ultrasonic generating elements having a power of 100W/piece and a resonant frequency of (28 ± 0.5) kHz; the power density of the ultrasonic generating mechanism is 2800W/m2。
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Cited By (1)
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| CN115595201A (en) * | 2022-10-14 | 2023-01-13 | 醴陵市万隆机械有限公司（Cn） | Oil post-treatment device for vacuum pump |
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| CN114653099B (en) | 2024-03-19 |
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