Oil-water coalescence separation filter element

Abstract

The utility model belongs to the technical field of filtering equipment, and particularly relates to an oil-water coalescence separation filter element. The filter specifically comprises frames, fixing nets, a filter layer and a spacing net, the frames are arranged at two corresponding positions, the fixing nets, the filter layer and the spacing net are arranged between the two frames respectively, the two fixing nets are arranged on the inner walls of the two sides of the frames respectively, the filter layer is arranged between the two fixing nets, a plurality of fiber bundles are arranged side by side, and the fiber bundles are arranged on the inner walls of the two sides of the frames respectively. An interval net is arranged between every two filtering layers for interval fixation, and a cleaning pipe is also arranged between the two filtering layers. The filter element has the advantages that the supporting force of the filter element is improved through the separated arrangement of the filter layer and the spacing net; the cleaning pipe is arranged in the filter element, so that the filter element can be cleaned, and the service life of the coalescer is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field especially is related to an oil water coalescence separation filter element. BACKGROUND

[0002] In production, the main method of oil-water separation relies on the density difference of oil and water to realize gravity separation and the cyclone separation derived from the increase of gravity difference. In the oil-water separation work, when the oil content in water is lower than 100ppm, it is very difficult to separate oil and water by gravity and cyclone method due to the very small oil droplets. Therefore, the method of oil-water separation by adsorption appears in the prior art. The materials used are adsorption filter element, adsorption filler and the like. However, the resistance increases after adsorption, and the cleaning process is difficult. The filter element needs to be replaced after a period of time, which increases the equipment maintenance and operation cost. At present, in the process of oil exploitation, the oil-water separation device commonly used is an oil-water separation coalescence filter. Its main function is to coalesce small oil droplets into large oil droplets in water-oil combined liquid, and completely separate oil and water to improve the oil-water separation effect.

[0003] In the prior art, patent authorization announcement No. CN 204745745 U discloses a coalescence separator filter element, which is composed of a cylindrical inner and outer framework and a filter layer. The filter layer is wound around the outer periphery of the cylindrical inner framework, and the filter layer is sleeved with the cylindrical outer framework. The two ends of the cylindrical outer framework and the cylindrical inner framework are provided with end covers and sealing pads.

[0004] The above method has the following technical problems: the filter layer is arranged between the inner and outer frameworks. In the filtering work, the filter layer at the middle part is not easy to clean after the oil droplets are coalesced, which is not conducive to the subsequent cleaning and maintenance. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides an oil-water coalescence separation filter element.

[0006] The technical scheme of the utility model is as follows: an oil-water coalescence separation filter element, comprising a frame, a fixed net, a filter layer and a spacing net, the frame is provided with two corresponding parts, the fixed net, the filter layer and the spacing net are arranged between the two frame parts, the fixed net is arranged on the inner wall of the frame on both sides, the filter layer is arranged between the two fixed nets, the filter layer is provided with a plurality of parts in parallel, and is arranged in layers, the spacing net is arranged between every two filter layers to fix, and a cleaning pipe is arranged between the two filter layers.

[0007] Further, the filter layer is provided with 3-5 parts, each filter layer is made of fiber bundle material, the filter gap of the fiber bundle is accurately controlled, and the fiber direction between every two adjacent fiber bundles forms an included angle of 0°-90°.

[0008] Further, each fiber bundle thickness is set to 80-100mm, from left to right, respectively, fiber bundle one, fiber bundle two and fiber bundle three, the fiber direction of fiber bundle one is left oblique 45°, the fiber direction of fiber bundle two is right oblique 45°, the fiber direction of fiber bundle three is vertical direction; So that in the unit plane of the coalescing filter cross section, the fiber gap grid is uniformly distributed, the gap rate can be accurately controlled, and oil droplet omission is avoided;

[0009] Further, in order to wash the coalesced oil droplets and improve the service life of the filter element, two interval nets are arranged between every two filter layers.

[0010] Further, in order to facilitate the setting of the cleaning pipe, three interval nets are arranged between every two filter layers, and a cleaning pipe is arranged at the lower part of each interval net, wherein the cleaning pipe is connected with high-pressure gas.

[0011] Further, in order to improve the fixation of the material of the filter element, a fixing wire belt is arranged outside the frame, and the fixing wire belt is arranged at a plurality of positions in the vertical direction outside the frame.

[0012] The fixing net of the utility model can fix the filter layer in the frame of the filter element, reduces the problems of broken wire and fiber bundle failure loss of the filter layer, the filter layer is arranged at a plurality of positions in parallel, the interval net is arranged between every two filter layers to fix, the support force between the filter layers is improved, the fiber bundles of the plurality of filter layers are uniformly distributed, and the filter element is convenient to install, the interval net of 316L stainless steel material leaves a flow gap, the oil-water mixed liquid can make the coalesced oil droplets float quickly in the gap, and the oil droplets are convenient to clean in the later period, the high-pressure gas cleaning pipe is added to the lower part of the interval net, the filter element can be cleaned after the high-pressure gas device is opened regularly, the filter element can be gas washed, and the service life of the coalescer is increased. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the structure schematic diagram of the oil-water coalescing separation filter element of the utility model;

[0014] Figure 2 is the structure enlarged view of the filter layer in the embodiment 2 of the utility model;

[0015] In the drawing:

[0016] A, frame 1, fixing net 2, fiber bundle one

[0017] 3, fixing wire belt 4, interval net 5, fiber bundle two

[0018] 6, fiber bundle three 7, cleaning pipe DETAILED DESCRIPTION

[0019] Embodiment 1

[0020] An oil-water coalescence separation filter element, comprising a frame A, a fixed net 1, a filter layer and a spacing net 4, the size of the frame A is determined according to the processing capacity and the diameter of the equipment of the coalescence filter or the size of the manhole, the frame A is provided with two corresponding parts, and the fixed net 1, the filter layer and the spacing net 4 are arranged between the two frame A respectively; the two fixed nets 1 are made of 316L stainless steel, and the specification is 5 meshes; the two fixed nets 1 are arranged on the inner walls of the two sides of the frame A respectively, the filter layer is arranged between the two fixed nets 1, the filter layer is made of fiber bundles, the specification is 5um, and the fiber bundles are arranged in parallel and in layers, and the fiber bundles are arranged from left to right as fiber bundle one 2, fiber bundle two 5 and fiber bundle three 6; the thickness of each layer of the fiber bundle can be set to 50-200mm according to the processing accuracy, wherein the fiber gap grid is uniformly distributed in the plane, the gap rate is accurately controlled, and the fiber direction between every two adjacent fiber bundles forms an included angle of 90°; the spacing net 4 made of 316L stainless steel is arranged between every two fiber bundles for spacing and fixing, and a cleaning pipe 7 is further arranged at the lower part of the spacing net 4, the cleaning pipe 7 is made of 316L stainless steel and is connected with high-pressure gas.

[0021] In actual work, the stainless steel binding belt is used as a fixed line belt 3, the stainless steel binding belt is arranged at 6-8 positions and is uniformly distributed from top to bottom on the outside of the frame A; the filter element is placed in the coalescence filter, the coalescence filter is provided with a liquid inlet and a liquid outlet respectively, the oil-water mixture enters the coalescence filter through the liquid inlet, the water in the liquid flows out from the liquid outlet after passing through the filter element, the oil in the liquid is intercepted by the fiber bundle in the filter element and gradually coalesces into large oil droplets, after a period of use of the filter element, the oil droplets make the coalesced oil droplets float quickly in the gap through the stainless steel spacing net 4, the cleaning pipe 7 arranged at the lower part of the spacing net 4 is connected with high-pressure gas, and the coalesced oil droplets on the spacing net 4 can be washed by the high-pressure gas, then the oil droplets flow out from the oil outlet of the coalescence filter after the oil droplets pass through the coalescence filter, and the oil-water separation work is completed.

[0022] Embodiment 2

[0023] An oil-water coalescence separation filter element, comprising a frame A, a fixed net 1, a filter layer and a spacing net 4, the frame A is provided with two corresponding parts, and the fixed net 1, the filter layer and the spacing net 4 are arranged between the two frame A respectively; the two fixed nets 1 are arranged on the inner walls of the two sides of the frame A respectively, the filter layer made of fiber bundles is arranged between the two fixed nets 1, and the fiber bundles are arranged in parallel and in three layers, and the thickness of each fiber bundle is set to 100mm, and the fiber bundles are arranged from left to right as fiber bundle one 2, fiber bundle two 5 and fiber bundle three 6.

[0024] The fiber direction of the fiber bundle one 2 is left inclined 45°, the fiber direction of the fiber bundle two 5 is right inclined 45°, and the fiber direction of the fiber bundle three 6 is vertical, so that the fiber gap grid is uniformly distributed in the unit plane of the coalescence filter section, the gap rate can be accurately controlled, and oil droplet omission is avoided; three interval nets 4 made of 316L stainless steel are arranged between every two fiber bundles, and six interval nets 4 are used in total.

[0025] In work, the interval net 4 is used between the fiber bundles to provide high support force for the filter core, and also helps the oil droplets in the oil-water mixed liquid to quickly float up in the gap on the fiber bundle, so that the oil droplets after coalescence can be conveniently cleaned in the later period; the use of the interval net 4 improves the support force between the fiber bundles, and under the condition of strong support force, the installation of the filter core is more convenient.

[0026] The lower part of each interval net 4 is provided with a cleaning pipe channel, the cleaning pipe 7 made of 316L stainless steel is arranged on the interval net 4 along the cleaning pipe channel, and the cleaning pipe 7 is connected with high-pressure gas.

[0027] The oil-water coalescence separation filter core is made by surrounding the frame A periphery with a stainless steel strap to segmentally bind the fixed net 1, the fiber bundle, the interval net 4 and the cleaning pipe 7.

[0028] The above has carried out the detailed description to one embodiment of the utility model, but the content described can only be the preferred embodiment of the utility model, and cannot be considered to limit the implementation range of the utility model. Any equivalent change and improvement made according to the application range of the utility model should still belong to the patent coverage range of the utility model.

Claims

1. An oil-water coalescing separator filter element, characterized in that: It includes a frame, a fixing mesh, a filter layer, and a spacer mesh. The frame is set in two corresponding locations. The fixing mesh, filter layer, and spacer mesh are respectively set between the two frame locations. The two fixing meshes are respectively set on the inner walls of the two sides of the frame. The filter layer is set between the two fixing meshes. Several filter layers are arranged side by side. A spacer mesh is set between every two filter layers to fix them. A cleaning pipe is also provided between the two filter layers.

2. The oil-water coalescing separator filter element according to claim 1, characterized in that: The filter layer is set in 3-5 locations, and each filter layer uses fiber bundle material. The fiber direction between any two adjacent fiber bundles forms an angle of 0° to 90°.

3. The oil-water coalescing separator filter element according to claim 2, characterized in that: The thickness of each fiber bundle is set to 80-100mm, and they are designated as fiber bundle one, fiber bundle two, and fiber bundle three from left to right. The fiber direction of fiber bundle one is tilted to the left at 45°, the fiber direction of fiber bundle two is tilted to the right at 45°, and the fiber direction of fiber bundle three is vertical.

4. The oil-water coalescing separator filter element according to claim 1, characterized in that: Two spacer meshes are arranged side by side between every two filter layers, and the cleaning pipe is disposed between the two spacer meshes.

5. The oil-water coalescing separator filter element according to claim 1, characterized in that: Three spacer meshes are arranged side by side between every two filter layers, and a cleaning pipe is installed at the bottom of each spacer mesh, the cleaning pipe being connected to high-pressure gas.

6. An oil-water coalescing separator filter element according to any one of claims 1-5, characterized in that: A fixing strap is provided on the outside of the frame, and several fixing straps are evenly distributed on the outside of the frame to fix and bind the frame and the filter layer provided inside.

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