CN116688570A - Oil dehydration filter core and dewatering device - Google Patents
Oil dehydration filter core and dewatering device Download PDFInfo
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- CN116688570A CN116688570A CN202310980721.2A CN202310980721A CN116688570A CN 116688570 A CN116688570 A CN 116688570A CN 202310980721 A CN202310980721 A CN 202310980721A CN 116688570 A CN116688570 A CN 116688570A
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- separation
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- 230000018044 dehydration Effects 0.000 title claims abstract description 45
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 45
- 238000000926 separation method Methods 0.000 claims abstract description 156
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 209
- 238000004581 coalescence Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 13
- 239000012535 impurity Substances 0.000 description 10
- 230000005484 gravity Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006335 epoxy glue Polymers 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/10—Thickening liquid suspensions by filtration with stationary filtering elements
-
- 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
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- 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
- B01D17/04—Breaking emulsions
- B01D17/045—Breaking emulsions with coalescers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to the technical field of oil-liquid separation, and discloses an oil product dehydration filter element and a dehydration device, wherein the oil product dehydration filter element comprises a shell, and the shell comprises an oil inlet, an oil outlet and a water outlet; the coalescing filter element is arranged in the shell, and the front side of the coalescing filter element is communicated with the oil inlet; the separation filter element is arranged in the shell, the filtering front side of the separation filter element is communicated with the filtering rear side of the coalescing filter element, the filtering front side of the separation filter element is communicated with the water outlet, the filtering rear side of the separation filter element is communicated with the oil outlet, and the separation filter element and the coalescing filter element are distributed in the axial direction. The coalescing filter element and the separating filter element are protected, convenient to carry and install, small in overall size and small in space occupation.
Description
Technical Field
The invention relates to the technical field of oil separation, in particular to an oil product dehydration filter element and a dehydration device.
Background
Currently, many devices require oil. For example, in electric power oil, electric power equipment can be lubricated, cooled, and insulated by oil. In order to realize efficient lubrication, cooling and insulation performance, the quality of the oil product of the electric power oil needs to be maintained at a higher level. In contrast, through the coalescing separation technology, the separation of oil and water phases in the oil is realized by utilizing the surface wettability of the filter material in the coalescing filter element and the oleophilic hydrophobicity of the separation filter element, so that the oil with higher quality is obtained.
However, the coalescing filter element and the separating filter element filter materials in the related art are exposed, so that risks of easy deformation, easy scratch and damage and the like exist in the process of carrying and mounting, and the problems of large volume, large occupied space and the like exist.
Disclosure of Invention
The present invention has been made based on the findings and knowledge of the inventors regarding the following facts and problems: in the related art, the coalescence filter core and the separation filter core are easy to collide and damage in transportation and installation, and the occupied space is large.
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the oil product dehydration filter element and the dehydration device, the coalescing filter element and the separation filter element are arranged in the shell and are arranged in the axial direction of the shell, so that the coalescing filter element and the separation filter element are protected, the oil product dehydration filter element is convenient to carry and install, the overall size of an axial layout mode is small, and the space occupation is reduced.
The oil dehydration filter element of the invention comprises: the shell comprises an oil inlet, an oil outlet and a water outlet; the coalescing filter element is arranged in the shell, and the front side of the coalescing filter element is communicated with the oil inlet; the separation filter element is arranged in the shell, the front filtering side of the separation filter element is communicated with the rear filtering side of the coalescing filter element, the front filtering side of the separation filter element is communicated with the water outlet, the rear filtering side of the separation filter element is communicated with the oil outlet, and the separation filter element and the coalescing filter element are distributed in the axial direction.
Optionally, the coalescing filter element is fixedly connected with the separating filter element through a connecting piece, a gap between the coalescing filter element and the shell forms a first oil circulation channel, a gap between the separating filter element and the shell forms a second oil circulation channel, and the second oil circulation channel is communicated with the first oil circulation channel, wherein the second oil circulation channel is located at the downstream of the first oil circulation channel.
Optionally, the coalescing filter element includes a first interior cavity in communication with the oil inlet, and the separation filter element includes a second interior cavity in communication with the oil outlet; the connecting piece comprises a first inner connecting part and a second inner connecting part, wherein the first inner connecting part is embedded and fixed in the first inner cavity, and the second inner connecting part is embedded and fixed in the second inner cavity; and/or the connecting piece comprises a first outer connecting part and a second outer connecting part, wherein the first outer connecting part is nested and fixed on the outer side of the coalescing filter element, and the second outer connecting part is nested and fixed on the outer side of the separating filter element.
Optionally, the coalescing filter element includes coalescence inner support frame and coalescence outer support frame, the coalescence outer support frame cover is located the coalescence inner support frame outside, coalescence inner support frame be provided with a plurality of with the inboard through-hole of coalescence of oil inlet intercommunication, coalescence outer support frame with it has coalescence medium to fill between the coalescence inner support frame, just coalescence outer support frame be provided with a plurality of with the outside through-hole of coalescence of first fluid circulation passageway intercommunication.
Optionally, the separation filter core includes separation inner support frame and separation outer support frame, separation outer support frame cover is located separation inner support frame, separation inner support frame be provided with a plurality of with the inboard filtration pore of separation of oil-out intercommunication, separation outer support frame with it has separating medium to fill between the separation inner support frame, just separation outer support frame be provided with a plurality of with the outside through-hole of separation of second fluid circulation passageway intercommunication.
Optionally, the shell comprises a shell body, an upper cover and a lower cover, the upper cover comprises a first upper connecting part, a second upper connecting part and a third upper connecting part, the first upper connecting part is embedded and fixed in the coalescing inner supporting frame or the coalescing outer supporting frame, the second upper connecting part is embedded and fixed on the outer side of the coalescing outer supporting frame, the third upper connecting part is embedded and fixed on the upper part of the outer side of the shell body, and the oil inlet is arranged on the upper cover; the lower cover comprises a first lower connecting part, a second lower connecting part and a third lower connecting part, wherein the first lower connecting part is embedded and fixed in the separation inner support frame or the separation outer support frame, the second lower connecting part is embedded and fixed on the outer side of the separation outer support frame, the third lower connecting part is embedded and fixed on the lower part of the outer side of the shell body, and the oil outlet and the water outlet are arranged on the lower cover.
Optionally, the oil outlet comprises a first conical surface, a second conical surface matched with the first conical surface is arranged at the bottom of the separation inner support frame, and the second conical surface abuts against the first conical surface.
Optionally, the coalescing media comprises a plurality of layers of fibers, an inner layer of the plurality of layers of fibers having a lower accuracy than an outer layer of fibers.
Optionally, the coalescing filter element is coaxially disposed with the separation filter element, the coalescing media in the coalescing filter element has a length L1, and the separation media in the separation filter element has a length L2, wherein L1: l2=1:1 to 1:2.
The dewatering device of the present invention comprises: the tank body is provided with an oil conveying port, an oil discharging port and a water discharging port; the oil product dehydration filter element is arranged in the tank body, a gap between the shell and the tank body forms an oil conveying channel, the oil conveying channel is communicated with the oil conveying port and the oil inlet, the oil outlet is communicated with the oil outlet, and the water outlet is communicated with the water outlet.
The oil product dehydration filter element and the dehydration device have the following technical effects:
(1) Through setting up coalescence filter core and separation filter core inside the shell to coalescence filter core and separation filter core are arranged at the axial direction of shell, and not only coalescence filter core and separation filter core have obtained effective protection, and convenient transport and installation, axial layout's mode makes the whole volume of oil dehydration filter core less moreover, can reduce the space occupation.
(2) The coalescing filter element and the separating filter element are fixedly connected through the connecting piece to form an integrated filter element structure which is axially arranged, so that the oil can finish two technological processes of coalescing and separating at one time, coalesced water drops quickly settle to the vicinity of a water outlet under the action of gravity, the use efficiency of coalescing filter materials is improved, and the purpose of quickly separating water in the oil is achieved.
(3) Through shell, coalescence filter core and separation filter core structure as an organic whole, such integrated structure can once only install in place, reduces the installation degree of difficulty of oil dehydration filter core.
(4) The coalescing filter element and the separating filter element are respectively fixed in the shell body in a sealing way through the upper cover and the lower cover, so that the installation is convenient, and the oil can be always in a full oil state in the shell due to the sealing connection mode, and the exhaust operation is not required; the design reduces the volume of the coalescing filter device, simplifies the structure and saves the cost.
(5) The coalescing filter element and the separating filter element are fixed on the shell body in a sealing manner through the upper cover and the lower cover to form an integrated structure, so that the integrated structure is more compact, the whole volume is smaller, and the space occupation is reduced.
(6) The gravity action of the integrated coalescing filter element separation filter element can be utilized to enable the second conical surface matched with the first conical surface to be propped against to form surface contact, so that the sealing reliability of the oil outlet of the lower cover and the bottom of the inner support frame is improved.
(7) When the oil passes through the coalescing filter element, the filter precision close to the inner layer is small, the fiber filtering diameter is larger, the filter is coarse fiber, the impurity of larger particles in the oil is filtered firstly, the filter precision close to the outer layer is high, the filtering diameter is smaller, the filter is fine fiber, and the impurity of smaller particles in the oil is filtered afterwards, so that the filtering capacity of the coalescing filter element to the impurity in the oil is improved, the pollution of the impurity in the oil to the demulsification layer, the coalescing layer and the oleophilic and hydrophobic layer of the separating filter element is reduced, the effective contact area of water and filter elements is improved, and the dewatering efficiency is increased.
(8) The filter structure is simplified and the filter volume is reduced by adopting a coaxial layout mode of the coalescing filter element and the separating filter element; by setting different sizes (length ratio) of the coalescing filter element and the separating filter element, the effective area of the coalescing filter material and the separating filter material meets a specific ratio, and higher dewatering efficiency is ensured.
Drawings
FIG. 1 is a schematic illustration of a dewatering cartridge for oil products according to some embodiments of the present invention;
fig. 2 is a schematic structural view of a dewatering apparatus according to some embodiments of the present invention.
Reference numerals:
the shell 10, the shell body 11, the upper cover 12, the oil inlet 121, the first upper connecting portion 122, the second upper connecting portion 123 and the third upper connecting portion 124, the first upper connecting portion 122, the second upper connecting portion 123, the third upper connecting portion 124, the lower cover 13, the oil outlet 131, the drain opening 132, the first lower connecting portion 133, the second lower connecting portion 134, the third lower connecting portion 135;
coalescing filter element 20, coalescing inner support frame 21, coalescing outer support frame 22, coalescing media 23;
a separation filter element 30, a separation inner support 31, a separation outer support 32, and a separation medium 33;
a connection member 40, a first inner connection portion 41, a second inner connection portion 42, a first outer connection portion 43, a second outer connection portion 44;
a tank 50, an oil delivery port 51, an oil discharge port 52, and a water discharge port 53;
a first oil flow passage 101, a second oil flow passage 102;
an oil feed passage 501;
an axial direction Z;
a radial direction R;
a central axis L.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The invention provides an oil product dehydration filter element and a dehydration device, wherein a coalescing filter element and a separating filter element are arranged in a shell and are arranged in the axial direction of the shell, so that the coalescing filter element and the separating filter element are protected, the oil product dehydration filter element is convenient to carry and install, the overall size of the two in an axial layout mode is small, and the occupied space is reduced.
The oil product dehydration filter element is suitable for fuel oil, such as gasoline, kerosene, diesel oil, liquefied petroleum gas and the like; it is also suitable for equipment oil, such as power equipment lubricating oil, cooling oil, etc. After the filtered oil passes through the oil dehydration filter element, the tiny water drops in the dissolved water in the oil are coalesced into water drops with larger free water, and then the water drops pass through the separation filter element, and the separation filter element has good oleophilic hydrophobicity, so that the water in the oil is further separated, and finally the oil with higher oil is obtained.
Referring to fig. 1, fig. 1 is a schematic structural view of an oil dewatering filter according to some embodiments of the present invention. The embodiment of the invention provides an oil dehydration filter element, which comprises: housing 10, coalescing cartridge 20 and separation cartridge 30.
The housing 10 includes an oil inlet 121, an oil outlet 131, and a drain outlet 132; the coalescing filter element 20 is arranged in the shell 10, and the filter front side of the coalescing filter element 20 is communicated with the oil inlet 121; the separation filter element 30 is disposed in the housing 10, the filter front side of the separation filter element 30 communicates with the filter rear side of the coalescing filter element 20, the filter front side of the separation filter element 30 communicates with the drain port 132, the filter rear side of the separation filter element 30 communicates with the oil outlet 131, and the separation filter element 30 and the coalescing filter element 20 are distributed in the axial direction Z.
The side of the oil entering the coalescing filter element 20 is the front side of the coalescing filter element 20, and the side of the oil flowing out after being filtered by the coalescing filter element 20 is the rear side of the coalescing filter element 20. Similarly, the side of the separation cartridge 30 from which the oil enters is the front side of the separation cartridge 30, and the side of the separation cartridge 30 from which the oil flows out after being filtered by the separation cartridge 30 is the rear side of the separation cartridge 30.
In one example, oil enters from the inside of the coalescing filter element 20 in the radial direction R and exits from the outside of the coalescing filter element 20 in the radial direction R, i.e., the oil enters and exits as it passes through the coalescing filter element 20, such that the inside of the coalescing filter element 20 in the radial direction R is the front side and the outside of the coalescing filter element 20 in the radial direction R is the rear side. Similarly, oil enters from the outside of the radial direction R of the separation filter element 30, and flows out from the inside of the radial direction R of the separation filter element 30, i.e., the oil enters from the outside and exits from the inside of the radial direction R of the separation filter element 30 when passing through the separation filter element 30, so that the inside of the separation filter element 30 in the radial direction R is the front side of the filter, and the outside of the separation filter element 30 in the radial direction R is the rear side of the filter.
In another example, oil enters from the outside of the coalescing filter element 20 in the radial direction R and exits from the inside of the coalescing filter element 20 in the radial direction R, i.e., the oil enters from the outside and exits from the inside of the coalescing filter element 20 as it passes through the coalescing filter element 20, such that the outside of the coalescing filter element 20 in the radial direction R is the front side and the inside of the coalescing filter element 20 in the radial direction R is the back side. Similarly, oil enters from the inside of the radial direction R of the separation cartridge 30, and exits from the outside of the radial direction R of the separation cartridge 30, i.e., enters and exits as the oil passes through the separation cartridge 30, such that the inside of the separation cartridge 30 in the radial direction R is the pre-filtration side and the outside of the separation cartridge 30 in the radial direction R is the post-filtration side.
The axial direction Z is the longitudinal direction of the housing 10. The axial direction Z of the housing 10 is generally up and down when the oil dewatering cartridge assembly is in a stand-up configuration. For example, the housing 10 has a long cylindrical structure with a central axis L, and an axial direction Z of the housing 10 is an extending direction of the central axis L.
The oil flowing in from the oil inlet 121 enters the coalescing filter element 20 from the front side of the coalescing filter element 20, the tiny water drops of dissolved water are coalesced into larger free water drops after being filtered by the coalescing filter element 20, and flow out from the filtering side of the coalescing filter element 20, then enter the separating filter element 30 from the front side of the separating filter element 30 for further filtering, and the separating filter element 30 has good oleophilic hydrophobicity, so that oil and water are separated, the separated water is discharged through the water outlet 132, and the separated oil with higher oil content is discharged from the oil outlet 131.
In general, the oil product dehydration filter core device is vertically arranged, the winding type oil product dehydration filter core in the related technology has a complex structure, the filter core is exposed outside, the function failure is easily caused by collision and scratch, the installation difficulty is high, and the coalescing filter core and the separating filter core are radially arranged, so that the occupied space is large. Therefore, the coalescing filter element and the separating filter element are arranged in the shell, and are arranged in the axial direction of the shell, so that the coalescing filter element and the separating filter element are effectively protected, the oil product dewatering filter element is more convenient to carry and install, and the overall volume of the oil product dewatering filter element is smaller in an axial layout mode, and the occupied space can be reduced.
As an example, the oil outlet 131 and the drain outlet 132 of the housing 10 are located below the oil inlet 121. For example, the oil outlet 131 is located at a top middle position of the housing 10, the oil inlet 121 is located at a bottom middle position of the housing 10, and the drain outlet 132 is located at a bottom side position of the housing 10. In addition, the housing 10 may be of a material having a certain mechanical strength so as to provide good protection for the coalescing filter element 20 and the separating filter element 30 therein. For example, the material of the case 10 may be a hard metal, a hard resin, or the like.
In some embodiments, the coalescing filter element 20 is fixedly connected to the separation filter element 30 by the connection 40, the gap between the coalescing filter element 20 and the housing 10 forms a first oil flow passage 101, the gap between the separation filter element 30 and the housing 10 forms a second oil flow passage 102, the second oil flow passage 102 is in communication with the first oil flow passage 101, and the second oil flow passage 102 is downstream of the first oil flow passage 101. The oil filtered by the coalescing filter element 20 flows from the filtered side thereof into the first oil flow path 101, flows from the first oil flow path 101 to the second oil flow path 102, and enters the separation filter element 30 from the second oil flow path 102 for oil separation.
When the oil product dehydration filter core device is vertically arranged, the separation filter core 30 is positioned at the axial lower position of the coalescence filter core 20, so that the occupation of radial space can be reduced, the oil liquid gravity can be utilized to sequentially pass through the coalescence filter core and the separation filter core from top to bottom, the filtration efficiency is improved, and meanwhile, the separated water is conveniently discharged.
Oil flows from the inside to the outside of coalescing filter element 20 into first oil flow path 101 and into separator element 30 through downstream second oil flow path 102. The flow of oil through coalescing filter element 20 may be in an inside-out flow direction and the flow of oil through separation filter element 30 may be in an outside-in flow direction.
According to the oil product dehydration filter element, the coalescing filter element and the separation filter element are fixedly connected through the connecting piece to form the axially arranged integrated filter element structure, so that oil can finish two technological processes of coalescence and separation at one time, the second oil flow channel is positioned at the downstream of the first oil flow channel, oil flowing out of the coalescing filter element flows into the separation filter element through gravity, after oil is separated, separated water rapidly settles to the vicinity of the water outlet along the axial direction through gravity, the filtration efficiency of the coalescing filter material is improved, and the purpose of rapidly separating water in the oil is achieved.
Illustratively, coalescing filter element 20 is fixedly coupled to separator element 30 by a coupling member 40, which may form a unitary structure having both coalescing and separating functions. Coalescing filter element 20 and separator filter element 30 may each be cylindrical in shape and may be the same diameter. The shell 10 is sleeved outside the coalescing filter element 20 and the separating filter element 3, the separating filter element 30 is located below the coalescing filter element 20, a gap between the outer wall of the coalescing filter element 20 and the upper part of the inner wall of the shell 10 forms a first oil circulation channel 101, a gap between the outer wall of the separating filter element 30 and the lower part of the inner wall of the shell 10 forms a second oil circulation channel 102, and the second oil circulation channel 102 is located axially below the first oil circulation channel 101.
In some embodiments, housing 10, coalescing filter element 20, and separation filter element 30 are of unitary construction. The integral structure means that the shell 10, the coalescing filter element 20 and the separating filter element 30 are fixedly connected together to form a whole. For example, coalescing filter element 20 and separator filter element 30 are connected by a connector 40, and coalescing filter element 20 and separator filter element 30 are secured to housing 10, respectively.
It should be noted that, in general, the coalescing filter element and the separating filter element in the related art are two independent components, and need to be separately installed in the tank, which is inconvenient to install and is laborious and troublesome. Therefore, the oil product dewatering filter element can be installed in place at one time through the integrated structure of the shell, the coalescing filter element and the separating filter element, and the installation difficulty of the oil product dewatering filter element is reduced.
In some embodiments, coalescing filter element 20 includes a first interior cavity in communication with oil inlet 121, and separation filter element 30 includes a second interior cavity in communication with oil outlet 131; the connecting piece 40 comprises a first inner connecting part 41 and a second inner connecting part 42, wherein the first inner connecting part 41 is embedded and fixed in the first inner cavity, and the second inner connecting part 42 is embedded and fixed in the second inner cavity; and/or the connecting member 40 includes a first outer connecting portion 43 and a second outer connecting portion 44, the first outer connecting portion 43 being nested and secured to the outside of the coalescing filter cartridge 20 and the second outer connecting portion 44 being nested and secured to the outside of the separation filter cartridge 30.
The coalescing filter element and the separating filter element are fixedly connected in a nested way through the connecting piece, and are combined together, so that the installation and the disassembly of the oil product dewatering filter element are convenient.
The connecting member 40 may be coaxial with the coalescing filter element 20 and the separation filter element 30, L, facilitating assembly and reducing radial space occupation.
In some embodiments, the coalescing filter element 20 includes a coalescing inner support frame 21 and a coalescing outer support frame 22, the coalescing outer support frame 22 is sleeved outside the coalescing inner support frame 21, the coalescing inner support frame 21 is provided with a plurality of coalescing inner through holes communicated with the oil inlet 121, coalescing media 23 is filled between the coalescing outer support frame 22 and the coalescing inner support frame 21, and the coalescing outer support frame 22 is provided with a plurality of coalescing outer through holes communicated with the first oil circulation passage 101.
Oil entering from the oil inlet is uniformly dispersed into the coalescing media 23 between the coalescing outer support frame 22 and the coalescing inner support frame 21 through the plurality of coalescing inner through holes, so that the oil is more fully coalesced and filtered, and the oil filtered by the coalescing media 23 flows from the coalescing outer through holes to the first oil circulation channel 101. Coalescing media 23 may be fibers, such as glass fibers. The inner coalescing support frame 21 and the outer coalescing support frame 22 are firmly and reliably nested and fixedly combined through connecting pieces.
In some embodiments, the separation filter element 30 includes a separation inner support 31 and a separation outer support 32, the separation outer support 32 is sleeved on the separation inner support 31, the separation inner support 31 is provided with a plurality of separation inner filter holes communicated with the oil outlet 131, a separation medium 33 is filled between the separation outer support 32 and the separation inner support 31, and the separation outer support 32 is provided with a plurality of separation outer through holes communicated with the second oil circulation channel 102.
The oil mixed with free water in the first oil flow channel 101 enters the separation medium 33 between the separation outer support 32 and the separation inner support 31 from the second oil flow channel 102, is dehydrated and filtered, water in the oil is discharged from the water outlet 132, and the dehydrated oil with higher quality is discharged from the oil outlet 131.
In some embodiments, the outer shell 10 includes a shell body 11, an upper cover 12, and a lower cover 13, the upper cover 12 includes a first upper connecting portion 122, a second upper connecting portion 123, and a third upper connecting portion 124, the first upper connecting portion 122 is embedded and fixed in the coalescing inner support frame 21 or the coalescing outer support frame 22, the second upper connecting portion 123 is embedded and fixed outside the coalescing outer support frame 22, the third upper connecting portion 124 is embedded and fixed outside the shell body 10, and the oil inlet 121 is provided in the upper cover 12.
The lower cover 13 includes a first lower connection part 133, a second lower connection part 134 and a third lower connection part 135, the first lower connection part 133 is embedded and fixed in the separation inner support frame 31, the second lower connection part 134 is embedded and fixed outside the separation outer support frame 32, the third lower connection part 135 is embedded and fixed at the lower part outside the shell body 11, and the oil outlet 131 and the water outlet 132 are arranged at the lower cover 13.
The coalescing filter element and the separating filter element are fixed with the shell body together in a nested mode through the upper cover and the lower cover to form an integrated structure, the integral strength is improved, the integral structure is more compact, the volume is smaller, and the space occupation is reduced.
Illustratively, the upper cover 12 is sealingly connected to the coalescing inner support frame 21, the coalescing outer support frame 22, and the housing body 11, respectively, in a nested manner. Specifically, the upper cover 12 has a first upper connecting portion 122, a second upper connecting portion 123 and a third upper connecting portion 124, which are annular and arranged in the radial direction R from inside to outside, and the first upper connecting portion 122 is a hollow through hole structure, so as to form an oil inlet 121, and the first upper connecting portion 122 is embedded in the coalescing inner support frame 21 and is in sealing connection with the inner wall of the coalescing inner support frame 21; the second upper connecting part 123 is nested outside the coalescing outer support frame 22 and is in sealing connection with the outer wall of the coalescing outer support frame 22; the third upper connection part 124 is nested in the outer upper part of the housing body 11 and is hermetically connected with the outer wall of the outer upper part of the housing body 11. The sealing connection can be achieved by coating the surface of the structure with epoxy glue G.
The lower cover 13 is connected with the bottom of the separating inner supporting frame 31, the separating outer supporting frame 32 and the housing body 11 in a sealing manner in a nested manner. Specifically, the lower cover 13 has a ring-shaped first lower connecting portion 133, a second lower connecting portion 134 and a third lower connecting portion 135 sequentially arranged from inside to outside in the radial direction R thereof, the first lower connecting portion 133 is of a hollow through-hole structure, thereby forming an oil outlet 131, and the first lower connecting portion 133 is embedded in the separation inner supporting frame 31 and is connected with the inner wall of the separation inner supporting frame 31 in a sealing manner; the second lower connecting part 134 is sleeved on the outer side of the separation outer supporting frame 32 and is in sealing connection with the outer wall of the separation outer supporting frame 32; the third lower connecting portion 135 is sleeved at the bottom of the outer side of the shell body 11 and is connected with the outer wall of the shell body 11 in a sealing manner. The sealing connection may be achieved by applying an epoxy glue.
In some embodiments, oil outlet 131 includes a first tapered surface, and the bottom of split inner support shelf 31 is provided with a second tapered surface that mates with the first tapered surface, the second tapered surface abutting the first tapered surface.
The surface of the oil outlet 131 facing the separation filter element 30 is a first conical surface, and the bottom of the separation inner support frame is provided with a second conical surface matched with the first conical surface. The gravity action of the integrated coalescing filter element separation filter element can be utilized to enable the second conical surface matched with the first conical surface to be propped against to form surface contact, so that the sealing reliability of the oil outlet of the lower cover and the bottom of the inner support frame is improved.
In some embodiments, the coalescing media 23 filled in the coalescing outer support frame 23 may comprise multiple layers of fibers, with the inner layer fibers in the multiple layers having a filtration accuracy that is less than the filtration accuracy of the outer layer fibers.
The inner layer of the multi-layer fiber close to the coalescing inner supporting frame is an inner layer, and the outer layer of the multi-layer fiber far away from the inner supporting frame is an outer layer. When the oil passes through the coalescing filter element, the filter precision close to the inner layer is small, the fiber filtering diameter is larger, the filter is coarse fiber, the impurity of larger particles in the oil is filtered firstly, the filter precision close to the outer layer is high, the filtering diameter is smaller, the filter is fine fiber, and the impurity of smaller particles in the oil is filtered afterwards, so that the filtering capacity of the coalescing filter element to the impurity in the oil is improved, the pollution of the impurity in the oil to the demulsification layer, the coalescing layer and the oleophilic and hydrophobic layer of the separating filter element is reduced, the effective contact area of water and filter elements is improved, and the dewatering efficiency is increased.
In some embodiments, coalescing filter element 20 is disposed coaxially L with separation filter element 30. And/or the length of coalescing media 23 in the coalescing filter element is L1 and the length of separation media in the separation filter element 30 is L2, wherein L1: l2=1:1 to 1:2.
The coalescing filter element and the separating filter element are coaxially arranged, so that the structure of the filter is simplified, and the volume of the filter is reduced. By setting different sizes (length ratio) of the coalescing filter element and the separating filter element, the effective area of the coalescing filter material and the separating filter material meets a specific ratio, and higher dewatering efficiency is ensured.
In some embodiments, referring to FIG. 1, an oil dehydration cartridge includes a housing 10, a coalescing cartridge 20 and a separation cartridge 30 disposed within housing 10. The housing 10 includes a housing body 11, an upper cover 12 having an oil inlet 121, and a lower cover 13 having an oil outlet and a drain. The coalescing filter element 20 comprises a coalescing inner support frame 21 with a plurality of coalescing inner through holes and a coalescing outer support frame 22 with a plurality of coalescing outer through holes, wherein the coalescing outer support frame 22 is sleeved on the coalescing inner support frame 21, and coalescing media 23 is filled between the coalescing inner support frame 21 and the coalescing outer support frame; the upper cover 12 is fitted and fixed together the top of the case body 11, the coalescing inner support frame 21 and the coalescing outer support frame 22. The separation cartridge 30 and the coalescing cartridge 20 are fixed together in a fitting manner by a connecting member 40, and the separation cartridge 30 is located below the coalescing cartridge 20 in the axial direction Z and is disposed coaxially with the coalescing cartridge 20. Specifically, the separation filter element 30 comprises a separation inner support 31 and a separation outer support 32 with a plurality of separation inner through holes, wherein the separation outer support 32 is sleeved on the separation inner support 31, and a separation medium is filled between the separation inner support 31 and the separation outer support 32; the lower cover 13 is fitted and fixed to the bottom of the case body 11, the separation inner support 31, and the separation outer support 32. Thus, the housing 10, coalescing filter cartridge 20 and separation filter cartridge 30 form an integrated structure. A first oil circulation channel 101 is formed between the outer wall of the coalescing outer support frame 22 and the inner wall of the upper portion of the shell body 11, and a second oil circulation channel 102 is formed between the outer wall of the separating outer support frame 32 and the inner wall of the lower portion of the shell body 11, and the second oil circulation channel 102 is located below and communicated with the first oil circulation channel 101. The oil enters the coalescing filter element 20 through the oil inlet 121, the coalescing inner side through holes of the coalescing inner support frame 21 enter the coalescing medium 23 to aggregate tiny water drops in the oil into larger water drops, the coalesced oil flows from the first oil circulation channel 101 to the second oil circulation channel 102 by gravity and enters the separation filter element 30 from outside to inside, water is further separated through the oleophilic and hydrophobic characteristics of the separation medium 33, then high-quality oil is discharged from the oil outlet 131 of the shell 10, and the separated water is discharged from the water outlet. The coalescing media 23 filled in the coalescing outer support frame 23 may comprise a plurality of layers of fibers, with the inner layer fibers being more precise than the outer layer fibers. Coalescing media 23 in the coalescing filter element has a length L1 and the separation media in the separation filter element 30 has a length L2, wherein L1: l2=1:1 to 1:2. The upper cover 12 may also be provided with a handle to facilitate access.
According to the oil product dehydration filter element, the shell, the coalescing filter element and the separating filter element form an integrated structure, and the shell can effectively protect the coalescing filter element and the separating filter element, so that the oil product dehydration filter element is convenient to carry and install; the coalescing filter element and the separating filter element are arranged in the axial direction of the shell, so that the structure is compact, and the space occupation is reduced; the oil flows from inside to outside when passing through the coalescing filter element, as the fiber filtering precision close to the inner layer is small, the fiber filtering diameter is larger, the fiber filtering precision close to the outer layer is high, the filtering diameter is smaller, and the fiber filtering diameter is fine, larger particles in the oil can be filtered first, and then smaller particles are filtered, so that the filtering capability of the coalescing filter element on impurities in the oil can be improved, the pollution of the impurities in the oil on a demulsification layer of the coalescing filter element, the coalescing layer and a hydrophilic and hydrophobic layer of the separation filter element can be reduced, the effective contact area of water and filter materials can be improved, and the dehydration efficiency can be increased; the filter structure is simplified and the filter volume is reduced by adopting a coaxial layout mode of the coalescing filter element and the separating filter element; by setting different sizes (length ratio) of the coalescing filter element and the separating filter element, the effective area of the coalescing filter material and the separating filter material meets a specific ratio, and higher dewatering efficiency is ensured.
Referring to fig. 2, fig. 2 is a schematic structural view of a dewatering apparatus according to some embodiments of the present invention. The invention also provides a dewatering device comprising a tank 50 and the oil dewatering cartridge of any of the embodiments above. The tank 50 is provided with an oil delivery port 51, an oil discharge port 52 and a water discharge port 53; the oil dehydration filter element is arranged in the tank body 50, and a gap between the shell 10 of the oil dehydration filter element and the tank body 50 forms an oil conveying channel 501, the oil conveying channel 501 is communicated with the oil conveying port 51 and the oil inlet 121, the oil discharging port 52 is communicated with the oil outlet 131, and the water discharging port 53 is communicated with the water discharging port 132.
The oil enters from the oil delivery port 51, enters into the coalescing filter element 20 from the oil inlet 121 through the oil delivery channel 501, gathers tiny water drops in the oil into larger water drops through the coalescing filter element 20, flows through the separation filter element 30, further separates water due to good oleophilic hydrophobicity of the separation filter element, finally, discharges oil with higher oil content from the oil outlet 52 communicated with the oil outlet 131, and the separated water can be discharged from the water discharge port 53 communicated with the water outlet 132 by self weight.
According to the dehydration device, the oil product dehydration filter element is well protected by arranging the oil product dehydration filter element in the embodiment, so that the device is convenient to install, the volume of the device can be reduced, and the requirement on the space of a working site is reduced.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.
Claims (10)
1. An oil dehydration filter core, characterized by comprising:
a housing (10) comprising an oil inlet (121), an oil outlet (131) and a drain outlet (132);
the coalescing filter element (20) is arranged in the shell, and the front side of the coalescing filter element (20) is communicated with the oil inlet;
the separation filter element (30) is arranged in the shell, the front filtering side of the separation filter element is communicated with the rear filtering side of the coalescing filter element, the front filtering side of the separation filter element is communicated with the water outlet, the rear filtering side of the separation filter element is communicated with the oil outlet, and the separation filter element and the coalescing filter element are distributed in the axial direction (Z).
2. The oil dehydration filter core according to claim 1, wherein,
the coalescing filter element is fixedly connected with the separating filter element through a connecting piece (40), a first oil liquid circulation channel (101) is formed in a gap between the coalescing filter element and the shell, a second oil liquid circulation channel (102) is formed in a gap between the separating filter element and the shell, the second oil liquid circulation channel is communicated with the first oil liquid circulation channel, and the second oil liquid circulation channel is located at the downstream of the first oil liquid circulation channel.
3. The oil dehydration filter core according to claim 2, wherein,
the coalescing filter element comprises a first inner cavity communicated with the oil inlet, and the separating filter element comprises a second inner cavity communicated with the oil outlet;
the connecting piece comprises a first inner connecting part and a second inner connecting part, wherein the first inner connecting part is embedded and fixed in the first inner cavity, and the second inner connecting part is embedded and fixed in the second inner cavity; and/or the connecting piece comprises a first outer connecting part and a second outer connecting part, wherein the first outer connecting part is nested and fixed on the outer side of the coalescing filter element, and the second outer connecting part is nested and fixed on the outer side of the separating filter element.
4. The oil dehydration filter core according to claim 3, wherein,
the coalescing filter element (20) comprises a coalescing inner support frame (21) and a coalescing outer support frame (22), the coalescing outer support frame is sleeved on the outer side of the coalescing inner support frame, the coalescing inner support frame is provided with a plurality of coalescing inner through holes communicated with the oil inlet (121), coalescing media (23) are filled between the coalescing outer support frame and the coalescing inner support frame, and the coalescing outer support frame is provided with a plurality of coalescing outer through holes communicated with the first oil liquid circulation channel (101).
5. The oil dehydration filter core according to claim 4, wherein,
the separation filter element (30) comprises a separation inner support frame (31) and a separation outer support frame (32), the separation outer support frame is sleeved outside the separation inner support frame, the separation inner support frame is provided with a plurality of separation inner filter holes communicated with the oil outlet, separation medium (33) is filled between the separation outer support frame and the separation inner support frame, and the separation outer support frame is provided with a plurality of separation outer through holes communicated with the second oil liquid circulation channel (102).
6. The oil dehydration filter core according to claim 5, wherein,
the shell comprises a shell body (11), an upper cover (12) and a lower cover (13), wherein the upper cover comprises a first upper connecting part, a second upper connecting part and a third upper connecting part, the first upper connecting part is embedded and fixed in the coalescing inner support frame or the coalescing outer support frame, the second upper connecting part is embedded and fixed on the outer side of the coalescing outer support frame, the third upper connecting part is embedded and fixed on the upper part of the outer side of the shell body, and the oil inlet is formed in the upper cover;
the lower cover comprises a first lower connecting part, a second lower connecting part and a third lower connecting part, wherein the first lower connecting part is embedded and fixed in the separation inner support frame or the separation outer support frame, the second lower connecting part is embedded and fixed on the outer side of the separation outer support frame, the third lower connecting part is embedded and fixed on the lower part of the outer side of the shell body, and the oil outlet and the water outlet are arranged on the lower cover.
7. The oil dehydration filter core according to claim 6, wherein,
the oil outlet comprises a first conical surface, a second conical surface matched with the first conical surface is arranged at the bottom of the inner separation support frame, and the second conical surface abuts against the first conical surface.
8. The oil dehydration filter core according to claim 5, wherein,
the coalescing media includes a plurality of layers of fibers, an inner layer of the plurality of layers of fibers having a lower accuracy than an outer layer of fibers.
9. The oil dehydration filter core according to claim 1 or 2, wherein,
the coalescing filter element is arranged coaxially (L) with the separating filter element; and/or the number of the groups of groups,
the length of the coalescing media in the coalescing filter element is L1, and the length of the separation media in the separation filter element is L2, wherein L1: l2=1:1 to 1:2.
10. A dehydration engine, comprising:
a tank (50) provided with an oil delivery port (51), an oil discharge port (52) and a water discharge port (53);
the oil dewatering cartridge as set forth in any one of claims 1-9, said oil dewatering cartridge being disposed in said tank, and a gap between said housing (10) and said tank (50) forming an oil delivery passage (501), said oil delivery passage being in communication with said oil delivery port (51) and said oil inlet, said oil discharge port being in communication with said oil outlet, said water discharge port being in communication with said water discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310980721.2A CN116688570A (en) | 2023-08-07 | 2023-08-07 | Oil dehydration filter core and dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310980721.2A CN116688570A (en) | 2023-08-07 | 2023-08-07 | Oil dehydration filter core and dewatering device |
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| Publication Number | Publication Date |
|---|---|
| CN116688570A true CN116688570A (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310980721.2A Pending CN116688570A (en) | 2023-08-07 | 2023-08-07 | Oil dehydration filter core and dewatering device |
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Application publication date: 20230905 |