CN112221200A - Oil-water separation filter material for hydraulic oil, preparation method thereof and filter element - Google Patents
Oil-water separation filter material for hydraulic oil, preparation method thereof and filter element Download PDFInfo
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- CN112221200A CN112221200A CN202010986083.1A CN202010986083A CN112221200A CN 112221200 A CN112221200 A CN 112221200A CN 202010986083 A CN202010986083 A CN 202010986083A CN 112221200 A CN112221200 A CN 112221200A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
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- 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
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Abstract
An oil-water separation filter material for hydraulic oil, a preparation method thereof and a filter element comprise the filter material which comprises a first filter layer, a first dewatering layer, a second filter layer, a second dewatering layer, a third filter layer and a support filter layer which are sequentially stacked; the first filter layer is an oil inlet surface, and the support filter layer is an oil outlet surface; s1, manufacturing a first composite supporting layer: s2, preparing a second water removing layer: s3, preparing a first water removing layer: according to the invention, the silica gel dry particles can absorb water in the oil for multiple times, so that the water in the oil is removed, and the water removal effect is improved; the silica gel dry particles with flat structures can be convenient for placing the silica gel dry particles and bonding the silica gel dry particles with the upper and lower filter layers.
Description
Technical Field
The invention belongs to the technical field of filter elements, and particularly relates to an oil-water separation filter material for hydraulic oil, a preparation method of the oil-water separation filter material and a filter element.
Background
The hydraulic oil is a hydraulic medium used by a hydraulic system utilizing liquid pressure energy, and plays roles of energy transfer, wear resistance, system lubrication, corrosion resistance, rust resistance, cooling and the like in the hydraulic system;
because air exists in the oil pipe and the oil tank, water vapor can be condensed into water drops to enter the hydraulic oil along with the change of the external environment cold and heat, so that the working effect of the hydraulic oil is influenced; the existing hydraulic oil filter element can only remove impurities in oil, and has poor cleaning effect on water.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an oil-water separation filter material for hydraulic oil, and the specific technical scheme is as follows:
an oil-water separation filter material for hydraulic oil comprises a first filter layer, a first water removal layer, a second filter layer, a second water removal layer, a third filter layer and a support filter layer which are sequentially stacked; the first filter layer is an oil inlet surface, and the support filter layer is an oil outlet surface.
Further, first filter layer, third filter layer all adopt the non-woven fabrics to make, the second filter layer adopts high-efficient melt-blown fabric to make, it adopts the non-woven fabrics skeleton to make to support the filter layer the mesh diameter of first filter layer, second filter layer, third filter layer reduces in proper order.
Further, first water removal layer includes first steel wire framework net, first water removal filling block, first steel wire framework net crimping is between first filter layer, second filter layer, the net intussuseption of first steel wire framework net is filled with first water removal filling block, bond between first water removal filling block and first filter layer, the second filter layer.
Furthermore, first water removal is filled up the piece and is become by the dry granule of the first silica gel of rectangular array distribution, the dry granule of first silica gel is the platykurtic, and the interval region between each dry granule of first silica gel is first oil drainage clearance.
Furthermore, the second water removing layer comprises a second steel wire framework net and a second water removing filling block, the second steel wire framework net is in compression joint between the second filter layer and the third filter layer, a second water removing filling block is filled in grids of the second steel wire framework net, the second water removing filling block is bonded with the second filter layer and the third filter layer, and the internal gap of the second water removing filling block is smaller than that of the first water removing filling block.
Further, the second water removal filling block is composed of second silica gel dry particles distributed in a rectangular array, the second silica gel dry particles are flat, the interval area between each second silica gel dry particle is a second oil discharge gap, and the inner diameter of the second oil discharge gap is smaller than that of the first oil discharge gap.
A preparation method of an oil-water separation filter material for hydraulic oil comprises the following steps:
s1, manufacturing a first composite supporting layer:
the third filter layer is laid on the support filter layer, and then the support filter layer and the third filter layer are conveyed into a hot press, and the support filter layer and the third filter layer are hot-pressed into a composite support layer;
s2, preparing a second water removing layer:
laying a second steel wire framework net on the surface of the composite supporting layer;
filling second silica gel dry particles with the outer surfaces wrapped with adhesives in grids of a second steel wire framework net, wherein the second silica gel dry particles distributed in a rectangular array form second water removal filling blocks of the grids;
the third filter layer is laid on the top surface of the first steel wire framework net and then integrally sent to rolling equipment, so that the composite support layer, the second steel wire framework net and the second filter layer are pressed and connected into a whole, and the second water removal filling block is bonded with the composite support layer and the second filter layer into a whole;
s3, preparing a first water removing layer:
laying the first steel wire framework net on the surface of the second filter layer;
filling the first silica gel dry particles with the outer surfaces wrapped with the adhesives in the grids of the first steel wire framework net, wherein the first silica gel dry particles distributed in a rectangular array form first water removal filling blocks of the grids;
lay first filter layer on the top surface of first steel wire framework net, then wholly send to rolling equipment for whole crimping is as an organic whole, and first dewatering filling block bonds as an organic whole with second filter layer, first filter layer.
Further, the clearance of the first silica gel dry particles is larger than the inner clearance of the second silica gel dry particles.
An oil-water separation filter element for hydraulic oil comprises an outer cylinder and an inner cylinder; the inner barrel is inserted into the outer barrel, the outer barrel comprises an oil inlet joint, an upper end cover, an outer net barrel and a lower end cover, the upper end cover is arranged at the top end of the outer net barrel, the lower end cover is arranged at the bottom end of the outer net barrel, and the oil inlet joint is arranged on the top surface of the upper end cover; the inner cylinder body comprises a bottom plate, a sealing seat and an inner cylinder body, the inner cylinder body is inserted into the outer cylinder body, the sealing seat is arranged on the bottom surface of the inner cylinder body, the sealing seat penetrates through the lower end cover, the bottom surface of the sealing seat is provided with the bottom plate, and an oil-water separation filter material is embedded in the inner cylinder body; the diameter of the mesh of the inner net cylinder is smaller than that of the outer net cylinder.
Furthermore, the outer wall of the sealing seat is provided with an annular second sealing ring, the inner wall of the outer net barrel is provided with a first sealing ring, and the first sealing ring is matched with the second sealing ring in a wedge shape
Further, the length of the upper insulating block is at least twice as long as that of the adjusting hole, and the second terminal is arranged in the middle of the upper insulating block.
Further, the length of the upper insulating block is the same as that of the lower conductive block, and the width of the lower conductive block is greater than that of the upper insulating block.
Further, the surface of going up the insulating block is equipped with the sealing strip, the length of sealing strip with the length of going up the insulating block is the same, the bottom surface of apron seted up with sealing strip complex seal groove.
Further, the bottom surface of sealed cowling is equipped with the rubber buffer, the rubber plug imbed in the top of shell, the hold up tank of indent is seted up on the surface of sealed cowling, the slider with electrically conductive seat all install in the hold up tank.
Further, the inside of rubber buffer runs through there are first conductor and second conductor, the top of first conductor with first terminal electrical contact, the top of second conductor with electrically conductive seat electrical contact, the equal electrical connection in bottom of first conductor, second conductor the core.
The invention has the beneficial effects that:
the silica gel drying particles can absorb water in the oil for multiple times, so that the water in the oil is removed, and the water removal effect is improved; the silica gel dry particles with flat structures can be convenient for placing the silica gel dry particles and bonding the silica gel dry particles with the upper and lower filter layers.
Drawings
FIG. 1 is a schematic structural view of an oil-water separation filter for hydraulic oil according to the present invention;
FIG. 2 shows an enlarged schematic view of FIG. 1 at A;
FIG. 3 shows a schematic view of the outer cylinder construction of the present invention;
FIG. 4 shows a schematic view of the inner barrel construction of the present invention;
FIG. 5 shows a schematic view of the filter body of the present invention;
FIG. 6 is a schematic view of a first water removal layer structure according to the present invention;
FIG. 7 is a schematic view of a second water removal layer of the present invention;
shown in the figure: 1. an outer cylinder; 11. an oil inlet joint; 12. an upper end cover; 13. an outer mesh cylinder; 131. a first seal ring; 14. a lower end cover; 2. an inner cylinder; 21. a base plate; 22. a sealing seat; 221. a second seal ring; 23. an inner mesh cylinder; 3. a filter material main body; 31. a first filter layer; 32. a first water removal layer; 321. a first wire skeleton mesh; 322. a first water removal filling block; 323. drying the particles of the first silica gel; 324. a first oil drainage gap; 33. a second filter layer; 34. a second water removal layer; 341. a second wire skeleton mesh; 342. a second water removal filling block; 343. drying the particles by using second silica gel; 344. a second oil drainage gap; 35. a third filter layer; 36. supporting the filter layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 5, the oil-water separation filter medium for hydraulic oil includes a first filter layer 31, a first water removal layer 32, a second filter layer 33, a second water removal layer 34, a third filter layer 35, and a support filter layer 36, which are sequentially stacked; the first filter layer 31 is an oil inlet surface, and the support filter layer 36 is an oil outlet surface; the double-layer dewatering layer can be used for removing water in the hydraulic oil; by matching with a plurality of filter layers
The first filter layer 31 and the third filter layer 35 are both made of non-woven fabrics, the second filter layer 33 is made of high-efficiency melt-blown fabrics, the support filter layer 36 is made of a non-woven fabric skeleton, and the mesh diameters of the support filter layer 36, the first filter layer 31, the second filter layer 33 and the third filter layer 35 are sequentially reduced; the support filter layer mainly plays the effect of support, utilizes non-woven fabrics, high-efficient melt-blown fabric to carry out effectual filtration to fluid.
As shown in fig. 6, the first water removing layer 32 includes a first wire skeleton mesh 321 and a first water removing filling block 322, the first wire skeleton mesh 321 is pressed between the first filter layer 31 and the second filter layer 33, the first water removing filling block 322 is filled in the meshes of the first wire skeleton mesh 321, and the first water removing filling block 322 is bonded with the first filter layer 31 and the second filter layer 33; the first steel wire framework mesh can be used as a supporting framework of the first water removal filling block, so that the first water removal filling block can be stably arranged between the first filter layer and the second filter layer and cannot be loosened; the bonding mode can make the first water removing layer, the first filter layer and the second filter layer firmly connected into a whole.
The first water removal filling block 322 is composed of first silica gel dry particles 323 distributed in a rectangular array, the first silica gel dry particles 323 are flat, and an interval area between each first silica gel dry particle 323 is a first oil drainage gap 324; the first silica gel dry particles with flat structures can be more fully attached to the first steel wire framework net, and the upper surface and the lower surface of the first silica gel dry particles can be ensured to be attached to the first filter layer and the second filter layer; when fluid passed first oil extraction clearance, the water in the fluid can be fully absorbed by the dry granule of first silica gel, realizes the separation of fluid normal water in the fluid.
As shown in fig. 7, the second water removing layer 34 includes a second wire skeleton mesh 341 and a second water removing filling block 342, the second wire skeleton mesh 341 is pressed between the second filter layer 33 and the third filter layer 35, the second water removing filling block 342 is filled in the meshes of the second wire skeleton mesh 341, the second water removing filling block 342 is bonded with the second filter layer 33 and the third filter layer 35, and the internal gap of the second water removing filling block 342 is smaller than that of the first water removing filling block 322; the second steel wire framework mesh can be used as a supporting framework of the second water removal filling block, so that the second water removal filling block can be stably arranged between the second filter layer and the third filter layer and cannot be loosened; the bonding mode can make the second water removing layer, the second filter layer and the third filter layer firmly connected into a whole.
The second water removal filling block 342 is composed of second silica gel dry particles 343 distributed in a rectangular array, the second silica gel dry particles 343 are flat, an interval area between the second silica gel dry particles 343 is a second oil discharge gap 344, and the inner diameter of the second oil discharge gap 344 is smaller than that of the first oil discharge gap 324; the second silica gel dry particles can absorb water in the oil for the second time, so that the water in the oil is further removed, and the water removal effect is improved; the flat structure can be convenient for each silica gel dry particle to contact and bond with the second filter layer and the third filter layer.
A preparation method of an oil-water separation filter material for hydraulic oil comprises the following steps:
s1, manufacturing a first composite supporting layer:
the third filter layer 35 is laid on the support filter layer 36, then the support filter layer 36 and the third filter layer 35 are conveyed into a hot press, and the support filter layer 36 and the third filter layer 35 are hot-pressed into a composite support layer;
s2, preparation of the second water-removing layer 34:
laying a second steel wire framework net 341 on the surface of the composite supporting layer;
the second silica gel dry particles 343 of which the outer surfaces are wrapped with the adhesive are filled in the grids of the second steel wire framework mesh 341, and the second silica gel dry particles 343 distributed in a rectangular array form a second water removal filling block 342 of the grids; each second water removal pack 342 contains 12 second silica gel dry particles 343, 12 particles 3 × 4 distributed;
the third filter layer 35 is laid on the top surface of the first steel wire framework mesh 321, and then the whole is sent to rolling equipment, so that the composite support layer, the second steel wire framework mesh 341 and the second filter layer 33 are pressed and connected into a whole, and the second water removal filling block 342 is bonded with the composite support layer and the second filter layer 33 into a whole;
s3, preparation of the first water-removing layer 32:
laying the first wire skeleton mesh 321 on the surface of the second filter layer 33;
filling the first silica gel dry particles 323 with the adhesive wrapped on the outer surface in the grids of the first steel wire framework net 321, wherein the first silica gel dry particles 323 distributed in a rectangular array form first water removal filling blocks 322 of the grids; each first water removal filling block 322 comprises 20 first silica gel dry particles 323, and 20 particles are distributed by 4x 5;
the first filter layer 31 is laid on the top surface of the first steel wire framework mesh 321, and then the whole is sent to rolling equipment, so that the whole is pressed and connected into a whole, and the first water removal filling block 322 is bonded with the second filter layer 33 and the first filter layer 31 into a whole.
The gap of the first silica gel dry particles 323 is greater than the inner gap of the second silica gel dry particles 343.
The preparation of the filter material main body 3 can be realized through the steps.
As shown in fig. 1-4, an oil-water separation filter element for hydraulic oil comprises an outer cylinder 1 and an inner cylinder 2; the inner barrel body 2 is inserted into the outer barrel body 1, the outer barrel body 1 comprises an oil inlet joint 11, an upper end cover 12, an outer net barrel 13 and a lower end cover 14, the upper end cover 12 is arranged at the top end of the outer net barrel 13, the lower end cover 14 is arranged at the bottom end of the outer net barrel, and the oil inlet joint 11 is arranged on the top surface of the upper end cover 12; the inner cylinder 2 comprises a bottom plate 21, a sealing seat 22 and an inner cylinder 23, the inner cylinder 23 is inserted into the outer cylinder 13, the sealing seat 22 is arranged on the bottom surface of the inner cylinder 23, the sealing seat 22 penetrates through the lower end cover 14, the bottom plate 21 is arranged on the bottom surface of the sealing seat 22, and an oil-water separation filter material is embedded in the inner cylinder 23; the diameter of the mesh of the inner net barrel 23 is smaller than that of the mesh of the outer net barrel 13; the filter material can be conveniently replaced by workers in time in a plug-in mounting mode; hydraulic oil enters the inner cylinder 23 through the oil inlet joint 11, then moves from the inside to the outside,
the outer wall of the sealing seat 22 is provided with an annular second sealing ring 221, the inner wall of the outer net barrel 13 is provided with a first sealing ring 131, and the first sealing ring 131 is in wedge-shaped fit with the second sealing ring 221; the wedge-shaped matching is utilized to improve the sealing strength and avoid oil leakage.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an oil-water separation filter media for hydraulic oil which characterized in that: the filter material comprises a first filter layer, a first dewatering layer, a second filter layer, a second dewatering layer, a third filter layer and a support filter layer which are sequentially stacked; the first filter layer is an oil inlet surface, and the support filter layer is an oil outlet surface.
2. The oil-water separation filter medium for hydraulic oil according to claim 1, wherein: first filter layer, third filter layer all adopt the non-woven fabrics to make, the second filter layer adopts high-efficient melt-blown fabric to make, support the filter layer and adopt the non-woven fabrics skeleton to make, support the filter layer the mesh diameter of first filter layer, second filter layer, third filter layer reduces in proper order.
3. The oil-water separation filter medium for hydraulic oil according to claim 2, wherein: the first water removing layer comprises a first steel wire framework net and a first water removing filling block, the first steel wire framework net is in compression joint between the first filter layer and the second filter layer, the grid of the first steel wire framework net is filled with the first water removing filling block, and the first water removing filling block is bonded with the first filter layer and the second filter layer.
4. The oil-water separation filter medium for hydraulic oil according to claim 3, wherein: the first water removal filling block is composed of first silica gel drying particles distributed in a rectangular array, the first silica gel drying particles are flat, and the interval area between each first silica gel drying particle is a first oil drainage gap.
5. The oil-water separation filter medium for hydraulic oil according to claim 3, wherein: the second water removing layer comprises a second steel wire framework net and a second water removing filling block, the second steel wire framework net is in compression joint between the second filter layer and the third filter layer, a second water removing filling block is filled in meshes of the second steel wire framework net, the second water removing filling block is bonded with the second filter layer and the third filter layer, and the inner gap of the second water removing filling block is smaller than that of the first water removing filling block.
6. The oil-water separation filter medium for hydraulic oil according to claim 5, wherein: the second removes water and fills up the piece and constitute by the dry granule of second silica gel that the rectangular array distributes, the dry granule of second silica gel is the platykurtic, and the interval region between each dry granule of second silica gel is the second oil extraction clearance, the internal diameter in second oil extraction clearance is less than the internal diameter in first oil extraction clearance.
7. A preparation method of an oil-water separation filter material for hydraulic oil is characterized by comprising the following steps: the preparation method comprises the following steps:
s1, manufacturing a first composite supporting layer:
the third filter layer is laid on the support filter layer, and then the support filter layer and the third filter layer are conveyed into a hot press, and the support filter layer and the third filter layer are hot-pressed into a composite support layer;
s2, preparing a second water removing layer:
laying a second steel wire framework net on the surface of the composite supporting layer;
filling second silica gel dry particles with the outer surfaces wrapped with adhesives in grids of a second steel wire framework net, wherein the second silica gel dry particles distributed in a rectangular array form second water removal filling blocks of the grids;
the third filter layer is laid on the top surface of the first steel wire framework net and then integrally sent to rolling equipment, so that the composite support layer, the second steel wire framework net and the second filter layer are pressed and connected into a whole, and the second water removal filling block is bonded with the composite support layer and the second filter layer into a whole;
s3, preparing a first water removing layer:
laying the first steel wire framework net on the surface of the second filter layer;
filling the first silica gel dry particles with the outer surfaces wrapped with the adhesives in the grids of the first steel wire framework net, wherein the first silica gel dry particles distributed in a rectangular array form first water removal filling blocks of the grids;
lay first filter layer on the top surface of first steel wire framework net, then wholly send to rolling equipment for whole crimping is as an organic whole, and first dewatering filling block bonds as an organic whole with second filter layer, first filter layer.
8. The preparation method of the oil-water separation filter material for hydraulic oil according to claim 7, wherein the preparation method comprises the following steps: the clearance of the first silica gel dry particles is larger than the inner clearance of the second silica gel dry particles.
9. The utility model provides an oil-water separation filter core for hydraulic oil which characterized in that: the oil-water separating filter according to claim 1; comprises an outer cylinder body and an inner cylinder body; the inner barrel is inserted into the outer barrel, the outer barrel comprises an oil inlet joint, an upper end cover, an outer net barrel and a lower end cover, the upper end cover is arranged at the top end of the outer net barrel, the lower end cover is arranged at the bottom end of the outer net barrel, and the oil inlet joint is arranged on the top surface of the upper end cover; the inner cylinder body comprises a bottom plate, a sealing seat and an inner cylinder body, the inner cylinder body is inserted into the outer cylinder body, the sealing seat is arranged on the bottom surface of the inner cylinder body, the sealing seat penetrates through the lower end cover, the bottom surface of the sealing seat is provided with the bottom plate, and an oil-water separation filter material is embedded in the inner cylinder body; the diameter of the mesh of the inner net cylinder is smaller than that of the outer net cylinder.
10. The oil-water separation filter element for hydraulic oil according to claim 9, characterized in that: the outer wall of seal receptacle is equipped with annular second sealing ring, the inner wall of outer net section of thick bamboo is equipped with first sealing ring, wedge fit between first sealing ring and the second sealing ring.
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