CN216798798U - Coalescence filter core of high-efficient drainage deoiling - Google Patents

Abstract

The utility model relates to a sewage filtration technology field especially relates to a coalescence filter core of high-efficient drainage deoiling, and it is including the inner frame, breakdown of emulsion layer, coalescence layer and the exoskeleton that set gradually along the liquid flow direction, the inner frame with a plurality of through-holes have all been seted up on the exoskeleton surface, the inner frame tip is provided with the end cover, the inner frame with be formed with first drainage space between the breakdown of emulsion layer, be provided with first silk screen layer in the first drainage space, many guiding gutters have been seted up along oil drip flow direction on first silk screen layer surface. This application has the effect of guarantee coalescence filter core to oily sewage's deoiling filtration efficiency.

Description

Coalescence filter core of high-efficient drainage deoiling

Technical Field

The application relates to the technical field of sewage filtration, in particular to a coalescence filter element for efficiently filtering and removing oil from water.

Background

The filter element of the coalescence filter element takes coalescence material as medium, which is a main element in the coalescence device for filtering. The tiny oil drops dispersed in liquid such as water are captured by superfine fibers on the surface of the oleophylic filter material and coalesced to form larger oil drops, and the coalesced oil drops automatically float to the top in the coalescer and flow out from an opening at the top of the coalescer because the density of the oil drops is less than that of the water; the water directly flows outwards through the side wall of the filter material, so that the effect of separating oil from water is realized.

The coalescence filter core generally includes the inner frame, and the inner frame outside is provided with oleophylic filter layer, and the oleophylic filter layer outside is fixed with the exoskeleton. In the process that the oily sewage flows from the inside of the filter element to the outside of the filter element, oil drops are coalesced by the oleophylic filter layer and are retained on the oleophylic filter layer, and water directly flows out of the filter element through the oleophylic filter layer, so that the oil is removed from the water body, and the effect of purifying the oily sewage is achieved.

At present, a filter layer in a coalescence filter element is formed by tightly winding a plurality of filter layers with filter holes, oil drops are coalesced on the filter layer, and when the oil quantity exceeds the treatment capacity of the filter layer, the oil drops form an oil film on the surface of the filter layer to block the pores of the filter layer, so that the filtration efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to ensure the deoiling filtration efficiency of coalescence filter core to oily sewage, this application provides a coalescence filter core of high-efficient drainage deoiling.

The application provides a coalescence filter core of high-efficient drainage deoiling adopts following technical scheme:

the utility model provides a coalescence filter core of high-efficient drainage deoiling, includes inner frame, breakdown of emulsion layer, coalescence layer and the exoskeleton that sets gradually along the liquid flow direction, the inner frame with a plurality of through-holes have all been seted up on the exoskeleton surface, the inner frame tip is provided with the end cover, the inner frame with be formed with first drainage space between the breakdown of emulsion layer, be provided with first silk screen layer in the first drainage space, many guiding gutters have been seted up along oil drip flow direction on first silk screen layer surface.

By adopting the technical scheme, in the process that oily sewage flows outwards from the coalescence filter element, the oily sewage sequentially passes through the inner framework, the first silk screen layer, the demulsification layer, the coalescence layer and the outer framework. The inner side of the emulsion breaking layer breaks the oil-containing wastewater and coalesces the oil drops into fine oil drops, the inner side of the coalescence layer collects the fine oil drops and coalesces the fine oil drops into large oil drops, and the oil drops float up automatically to be separated from water. The guiding gutter plays the water conservancy diversion effect to oil dripping, and oil dripping after the shedding floats along the guiding gutter on first silk screen layer surface fast for oil dripping's discharge efficiency. When the adsorption force of the large oil drops and the surface of the demulsification layer is smaller than the traction force of water flow, the oil drops fall off from the surface of the demulsification layer and are positioned in the first drainage space, so that the accumulation amount of the oil drops on the surface of the demulsification layer is reduced, and the phenomenon of pore blockage of the demulsification layer is reduced. The amount of liquid to be treated by the coalescence layer is reduced, and the phenomenon of pore blockage of the coalescence layer is further reduced. According to the arrangement, the filtering efficiency of the coalescence filter element is guaranteed.

Optionally, the demulsification layer is an oleophylic hydrophobic demulsification layer, the coalescence layer is an oleophylic hydrophobic coalescence layer, and the pore diameter of the demulsification layer is smaller than that of the coalescence layer.

By adopting the technical scheme, when the fine oil drops collected by the demulsification layer flow to the surface of the coalescence layer, a layer of liquid film is formed, so that the pores of the demulsification layer and the coalescence layer are blocked, and the pore blocking phenomenon is easy to occur when the pore diameter is smaller. The breakdown of emulsion layer aperture is less than coalescence layer aperture for liquid smooth flow between breakdown of emulsion layer and coalescence layer, and then can not appear the liquid film because of the aperture reduces between breakdown of emulsion layer and coalescence layer, and the liquid film only forms at the great coalescence layer surface in aperture, and then has reduced the phenomenon emergence in stifled hole of liquid film, and then has improved the filtration efficiency of coalescence filter core.

Optionally, the exoskeleton outside is provided with the flowing back layer that is used for intercepting oil, the flowing back layer is oleophobic hydrophilic flowing back layer.

Through adopting above-mentioned technical scheme, the coalescence filter core has the condition that the secondary was smugglied secretly, and the drainage layer can carry the interception to the coalescence layer secondary and secretly cause big oil droplet to make oil droplet can't see through the drainage layer and then with the separation of water, improved the filter effect of coalescence filter core. The oleophobic hydrophilic drainage layer has oleophobic characteristic to reduce the adsorption to oil that drips on drainage layer surface, reduced the adsorption resistance who receives the drainage layer when dripping the come-up, and then accelerated the discharge rate that drips.

Optionally, a second liquid discharge space is formed between the aggregation layer and the outer framework, and a second silk screen layer is arranged in the second liquid discharge space.

Through adopting above-mentioned technical scheme, can't be through the oil drop of drainage layer, be located second flowing back space, second flowing back space provides the parking space for oil drops to reduced oil drops because of the coalescence filter core of can't in time discharging, and the adhesion takes place at the condition on drainage layer surface, and then reduced the phenomenon that drainage layer aperture blockked up and take place, further improved the filtration efficiency of coalescence filter core.

Optionally, a plurality of flow guide grooves are formed in the surface of the second screen layer along the oil drop flowing direction.

By adopting the technical scheme, a plurality of gullies arranged in the vertical direction are formed on the surface of the folded second screen mesh layer, oil drops enter the gullies, the oil drop floating process is guided, the oil drop discharging speed is accelerated, and the oil drop discharging efficiency is improved.

Optionally, the thickness of the demulsification layer is 0.2-0.4mm, the thickness of the coalescence layer is 0.8-1.5mm, and the thickness of the drainage layer is 1-3 mm.

By adopting the technical scheme, when the thicknesses of the demulsification layer, the coalescence layer and the drainage layer are respectively the thicknesses, the service performance of the coalescence filter element is better. The demulsification layer, the aggregation layer and the drainage layer are generally made of fibers, and when the demulsification layer, the aggregation layer and the drainage layer are too thin, oil drops easily and directly permeate the fibers of the demulsification layer, the aggregation layer and the drainage layer, so that a good coalescence effect or interception effect cannot be achieved; when the demulsification layer and the coalescence layer are too thick, oil drops are easy to accumulate in the fibers and retain the oil drops, so that the filtering effect is reduced.

Optionally, a third drainage space is arranged between the demulsification layer and the coalescence layer, a third silk screen layer is arranged in the third drainage space, and a plurality of diversion trenches are formed in the surface of the third silk screen layer along the oil drop flowing direction.

Through adopting above-mentioned technical scheme, after the oil droplet of coalescence layer inboard coalescence drops off, get into the third flowing back space, the third flowing back space provides storage space for oil droplet to it takes place because of the unable coalescence filter core of in time discharging to have reduced oil droplet, and the adhesion takes place at the condition on coalescence layer surface, and then has reduced the phenomenon emergence of coalescence layer pore blockage, has further improved the filtration efficiency of coalescence filter core.

Optionally, the coalescing filter element further includes an end cover disposed at the end of the outer frame, and a first groove for inserting the end of the first silk screen layer, a second groove for inserting the end of the second silk screen layer, and a third groove for inserting the end of the third silk screen layer are disposed on the inner top wall of the end cover.

By adopting the technical scheme, the stability of the first silk screen layer, the second silk screen layer and the third silk screen layer is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the first drainage space, oil drops which cannot be drained in time are retained in the first drainage space, so that the amount of oil drops accumulated on the surface of the demulsification layer is reduced, the occurrence of pore blockage on the surface of the demulsification layer is reduced, and the filtering efficiency of the coalescing filter element is ensured;

2. the pore diameter of the demulsification layer is smaller than that of the coalescence layer, so that the phenomenon that a liquid film is formed between the demulsification layer and the coalescence layer to block a gap is reduced, and the filtering efficiency of the coalescence filter element is improved;

3. through setting up oleophobic hydrophilic drainage layer, the adsorption resistance who comes from the drainage layer that receives when having reduced oil and dropping the come-up, and then accelerates the discharge rate that oil drips.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a coalescing filter element for efficiently filtering and removing water and oil according to an embodiment of the present application;

FIG. 2 is a schematic end view of a coalescing filter element with a high efficiency of water filtration and oil removal, with an end cap removed, according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a third wire mesh layer according to example II of the present application to highlight the third wire mesh layer;

fig. 4 is a schematic view of the end cap according to the second embodiment of the present application for highlighting the end cap.

Reference numerals: 1. an inner skeleton; 2. a first wire mesh layer; 3. a demulsifying layer; 4. a coalescing layer; 5. a second wire mesh layer; 6. an outer skeleton; 7. draining a liquid layer; 8. a first drainage space; 9. a second drainage space; 10. a third drainage space; 11. a third wire mesh layer; 12. an end cap; 13. a diversion trench; 14. a first groove; 15. a second groove; 16. and a third groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses coalescence filter core of high-efficient drainage deoiling. Referring to fig. 1 and 2, the coalescence filter element for efficiently filtering and removing water and oil comprises an inner framework 1, a demulsification layer 3, a coalescence layer 4, an outer framework 6 and a liquid drainage layer 7 which are sequentially arranged along the liquid flowing direction, wherein the inner framework 1 is cylindrical along the vertical direction and is provided with openings at two ends. The demulsification layer 3 is sleeved and fixed on the outer side of the inner framework 1, the drainage layer 7 is sleeved and fixed on the outer side of the outer framework 6, and the coalescence layer 4 is clamped and fixed between the demulsification layer 3 and the outer framework 6. A plurality of through-holes have all been seted up on inner frame 1 and outer skeleton 6 on the surface, and inner frame 1 and 6 tip of outer skeleton are located same horizontal plane, and inner frame 1's tip is provided with the top end terminal and is annular end cover 12, and end cover 12 top surface central authorities are formed with the water gap, and inner frame 1 tip and 6 tip of outer skeleton all with end cover 12 inside roof welded fastening.

From the water service mouth of 1 bottom end cover 12 of inner frame, let in oily sewage to 1 inboard of inner frame, some tiny oil drips condense and come-up on emulsion breaking layer 3 surface, oily sewage is after the emulsion breaking effect through emulsion breaking layer 3, coalesce into big oil and come-up on coalescence layer 4 surface, the oil drip that is carried by coalescence layer 4 secondary is intercepted and come-up by drainage layer 7, the oil drip is under the filtration layer upon layer through emulsion breaking layer 3, coalescence layer 4 and drainage layer 7, flows out the coalescence filter core from the top in inner frame 1 to separate with the water.

Referring to fig. 1 and 2, the emulsion breaking layer 3 is an oleophilic and hydrophobic emulsion breaking layer 3 with high filtering precision, and the thickness of the emulsion breaking layer is 0.2 mm; the aggregation layer 4 is an oleophylic and hydrophobic aggregation layer 4 with low filtering precision, and the thickness of the aggregation layer is 1 mm; the pore diameter of the demulsification layer 3 is smaller than that of the coalescence layer 4, and the surfaces of the demulsification layer 3 and the coalescence layer 4 are corrugated, so that the demulsification layer and the coalescence layer have larger surface areas, and oil drops are convenient to coalesce; the drainage layer 7 is an oleophobic hydrophilic drainage layer 7, and the thickness of the drainage layer is 2 mm. The thickness of the demulsification layer 3 can be selected between 0.2mm and 0.4 mm; the thickness of the aggregation layer 4 can be selected between 0.8 mm and 1.5 mm; the thickness of the drainage layer 7 can be selected between 1mm and 3mm, and when the thicknesses of the demulsification layer 3, the coalescence layer 4 and the drainage layer 7 are within the respective ranges, the filtering effect of the coalescence filter element can be ensured, and the filtering efficiency of the coalescence filter element can also be ensured.

Referring to fig. 1 and 2, the pore size of the coalescence layer 4 is larger than that of the emulsion breaking layer 3. The liquid flows smoothly between the demulsification layer 3 and the coalescence layer 4, and the condition that the oil drops block gaps due to the formation of a liquid film on the surface of the demulsification layer 3 is reduced.

Referring to fig. 1 and 2, in order to reduce the occurrence of oil drop hole blockage, a first drainage space 8 is formed between the inner skeleton 1 and the demulsification layer 3, a second drainage space 9 is formed between the coalescence layer 4 and the outer skeleton 6, and the first drainage space 8 and the second drainage space 9 are both oil drops and provide retention spaces. Part of oil drops on the inner side of the demulsification layer 3 finish floating in the first drainage space 8 so as to be separated from the side wall of the demulsification layer 3; the oil that can't pass through drainage layer 7 drips, accomplishes the come-up action in second flowing back space 9 to with the separation of drainage layer 7 lateral wall, thereby reduced the condition that oil drips and blockked up the filter media pore and taken place, ensured the filtration efficiency of coalescence filter core.

Referring to fig. 1 and 2, a first mesh layer 2 is provided in the first drain space 8, and a second mesh layer 5 is provided in the second drain space 9. The ends of the first silk screen layer 2 and the second silk screen layer 5 are welded and fixed with the inner top wall of the end cover 12. The demulsification layer 3 is sleeved and fixed on the outer side of the first silk screen layer 2, and the second silk screen layer 5 is sleeved and fixed on the outer side of the aggregation layer 4. The first silk screen layer 2 supports the demulsification layer 3, and the second silk screen layer 5 supports the agglomeration layer 4, so that the overall strength of the agglomeration filter element is improved. First silk screen layer 2 and 5 surfaces of second silk screen layer all are the corrugate, and first silk screen layer 2 and 5 surfaces of second silk screen layer form many guiding gutters 13, and guiding gutter 13 is along the vertical setting of oil drip flow direction, and guiding gutter 13 water conservancy diversion oil drip for the come-up speed of oil drip, and then improved the discharge efficiency of oil drip.

The implementation principle of the coalescence filter core of high-efficient drainage deoiling in this application embodiment one is: introducing oily sewage into the inner framework 1 from a water through hole of an end cover 12 at the bottom end of the inner framework 1, wherein the oily sewage sequentially flows through the inner framework 1, the first silk screen layer 2, the emulsion breaking layer 3, the coalescence layer 4, the second silk screen layer 5, the outer framework 6 and the liquid drainage layer 7; wherein oil drops are located the come-up in first drainage space 8 after becoming great oil drop through breakdown of emulsion layer 3 and coalescence layer 4 coalescence to water port department through 1 top end cover 12 of inner frame is outwards flowed, thereby has reduced the accumulation volume of the oil drop on breakdown of emulsion layer 3 and the 4 surfaces of coalescence layer, and then has reduced the condition that oil drops blockked up the filter media pore and take place, and then has ensured the filtration efficiency of coalescence filter core.

Example two:

the utility model provides a coalescence filter core of high-efficient drainage deoiling, the difference with embodiment one lies in, refer to fig. 3, be formed with third flowing back space 10 between breakdown of emulsion layer 3 and coalescence layer 4, be provided with third silk screen layer 11 in the third flowing back layer 7, third silk screen layer 11 is whole to be the cylindric that both ends are open-ended, third silk screen layer 11 transfers the tip to insert and establish on end cover 12 inside roof, the oil droplet of coalescence layer 4 enters into third flowing back space 10 to reduce the pile volume of oil droplet on coalescence layer 4 surface, and then further improved the filtration efficiency of coalescence filter core. And the surface of the third wire mesh layer 11 is also corrugated, and a diversion trench 13 is formed in the surface of the third wire mesh layer 11 along the oil drop flowing direction, so that the floating rate of the oil drops is increased.

Referring to fig. 4, a first groove 14 matched with the end of the first silk screen layer 2, a second groove 15 matched with the end of the second silk screen layer 5, and a third groove 16 matched with the end of the third silk screen layer 11 are formed in the inner top wall of the end cover 12, the end of the first silk screen layer 2 is inserted into the first groove 14, the end of the second silk screen layer 5 is inserted into the second groove 15, the end of the third silk screen layer 11 is inserted into the third groove 16, the first silk screen layer 2, the second silk screen layer 5 and the third silk screen layer 11 are inserted into and fixed with the end cover 12, a user can disassemble the coalescing filter element conveniently, and the user can maintain and clean the interior of the coalescing filter element conveniently.

In the second embodiment of the present application, the implementation principle of the coalescing filter element for efficient water filtration and oil removal is as follows: the oil drops detained on the surface of the aggregation layer 4 enter the third liquid discharge space 10, so that the situation that the pores on the surface of the aggregation layer 4 are blocked is reduced, the filtering efficiency of the coalescence filter element is improved, and meanwhile, the oil drops quickly float up along the surface of the third wire mesh layer 11, so that the filtering efficiency of the coalescence filter element is further improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a coalescence filter core of high-efficient drainage deoiling which characterized in that: along liquid flow direction including inner frame (1), breakdown of emulsion layer (3), coalescence layer (4) that set gradually, exoskeleton (6), inner frame (1) with a plurality of through-holes have all been seted up on exoskeleton (6) surface, inner frame (1) tip is provided with end cover (12), inner frame (1) with be formed with first drainage space (8) between breakdown of emulsion layer (3), be provided with first silk screen layer (2) in first drainage space (8), many guiding gutter (13) have been seted up along dripping the flow direction on first silk screen layer (2) surface.

2. The coalescing filter element for efficient water and oil removal according to claim 1, wherein: the demulsification layer (3) is an oleophylic hydrophobic demulsification layer, the aggregation layer (4) is an oleophylic hydrophobic aggregation layer, and the aperture of the demulsification layer (3) is smaller than that of the aggregation layer (4).

3. The coalescing filter element for efficient water and oil removal according to claim 1, wherein: exoskeleton (6) outside is provided with and is used for intercepting the drainage layer (7) that oil drips, drainage layer (7) are oleophobic hydrophilic drainage layer.

4. The coalescing filter element for efficient water and oil removal according to claim 1, wherein: a second liquid drainage space (9) is formed between the aggregation layer (4) and the outer framework (6), and a second silk screen layer (5) is arranged in the second liquid drainage space (9).

5. The coalescing filter element for efficient water and oil removal according to claim 4, wherein: and a plurality of flow guide grooves (13) are formed in the surface of the second silk screen layer (5) along the flow direction of oil drops.

6. The coalescing filter element for efficient water and oil removal according to claim 3, wherein: the thickness of the demulsification layer (3) is 0.2-0.4mm, the thickness of the aggregation layer (4) is 0.8-1.5mm, and the thickness of the drainage layer (7) is 1-3 mm.

7. The coalescing filter element for efficiently filtering and removing water and oil according to claim 6, wherein a third drainage space (10) is arranged between the demulsification layer (3) and the coalescing layer (4), a third wire mesh layer (11) is arranged in the third drainage space (10), and a plurality of flow guide grooves (13) are formed in the surface of the third wire mesh layer (11) along the flow direction of oil drops.

8. The coalescing filter element for efficient water and oil removal according to claim 1, wherein: and a first groove (14) for inserting the end part of the first silk screen layer (2), a second groove (15) for inserting the end part of the second silk screen layer (5) and a third groove (16) for inserting the end part of the third silk screen layer (11) are formed in the inner top wall of the end cover (12).

Images