High-strength large-flux gas-liquid coalescence filter element

Abstract

The utility model discloses a high-strength and large-flux gas-liquid coalescence filter element which comprises an inner framework, a coalescence layer, a supporting layer and a liquid discharging layer which are all cylindrical and coaxially arranged from inside to outside in sequence, and further comprises a pre-filtering layer which is arranged on the inner framework, the coalescence layer, the supporting layer and the liquid discharging layer in sequence from inside to outside. The pre-filtering layer is cylindrical, the pre-filtering layer is arranged between the inner framework and the coalescence layer, and the pre-filtering layer is a polyester spray melting layer. The gas-liquid coalescence filter element has the effect of improving the filtering efficiency of the gas-liquid coalescence filter element.

Description

Technical Field

[0001] The present application relates to the technical field of auxiliary devices for liquid coalescence filtration, and in particular to a high-strength and high-throughput gas-liquid coalescence filter element. Background Art

[0002] Coalescing filter elements are made of a variety of composite materials through a special process and are hydrophilic. Coalescing filter elements not only filter mechanical impurities from the medium, but also separate emulsified water from the medium through demulsification and coalescence, coalescing it into larger droplets to further purify the medium. Droplets of oil, water, and other liquids are captured by the microfibers inside the coalescing filter element. The micron-sized fibers in the coalescing filter element form a tortuous channel, forcing solid particles and liquid droplets in the gas to be captured by the microfibers through three filtration mechanisms: inertial collision, diffusion interception, and direct interception. The surface tension of the liquid causes small droplets to coalesce into larger droplets, which then settle to the bottom of the container due to gravity.

[0003] Currently, conventional gas-liquid coalescing filter elements consist of an inner skeleton, coalescing layer, support layer, and drainage layer, arranged sequentially from the inside out. Liquid droplets captured by the coalescing layer pass through the support layer and into the drainage layer, where they form larger droplets. These large droplets then settle to the bottom of the filter element under the influence of gravity.

[0004] Regarding the above-mentioned related technologies, the inventors believe that during the use of the above-mentioned traditional gas-liquid coalescing filter element, the distance between the drainage layer and the coalescing layer is small, and the two layers are relatively close, which makes it impossible to coalesce larger droplets on the surface of the drainage layer, thereby reducing the filtration efficiency. Utility Model Content

[0005] In order to improve the filtration efficiency of the gas-liquid coalescing filter element, the present application provides a high-strength and large-flow gas-liquid coalescing filter element.

[0006] The high-strength and high-throughput gas-liquid coalescing filter element provided in this application adopts the following technical solution:

[0007] A high-strength, high-throughput gas-liquid coalescing filter element, comprising an inner skeleton, a coalescing layer, a support layer and a drainage layer, wherein the inner skeleton, coalescing layer, support layer and drainage layer are all arranged in a cylindrical shape, and the inner skeleton, coalescing layer, support layer and drainage layer are coaxially arranged in sequence from the inside to the outside, and further comprising a pre-filter layer, which is cylindrical and arranged between the inner skeleton and the coalescing layer, and is a polyester spray-melt layer.

[0008] By adopting this technical solution, the media first undergoes preliminary filtration through the pre-filtration layer. The polyester melt-jet layer has abundant flow channels and a large dirt-receiving area. While ensuring the media's fluidity, it also pre-filters larger impurities, reducing the possibility of impurities clogging the coalescing layer. The interaction between the inner skeleton, coalescing layer, support layer, drainage layer, and pre-filtration layer improves the filtration efficiency of the gas-liquid coalescing filter element.

[0009] Optionally, it further includes a guide layer, which is cylindrical and arranged between the pre-filtration layer and the inner skeleton, and is a metal wire mesh.

[0010] By adopting the above technical solution, the guide layer is made of metal wire mesh, which provides abundant flow channels for the medium while providing support for the medium, thereby helping to improve the filtering efficiency of the filter element.

[0011] Optionally, an exoskeleton is further included. The exoskeleton is cylindrical and is arranged between the support layer and the drainage layer. The exoskeleton is a stainless steel perforated spiral mesh.

[0012] By adopting the above technical solution, the exoskeleton is arranged between the support layer and the drainage layer. While ensuring good support, it provides sufficient droplet aggregation space for the drainage layer, so that small droplets can have space to aggregate into larger droplets, which helps to improve the filtration efficiency and filtration effect of the filter element.

[0013] Optionally, an outer guide layer is further included, which is cylindrical and is sleeved on the outside of the drainage layer.

[0014] By adopting the above technical solution, the outer guide layer is arranged outside the other layers, which reduces the possibility of the drainage layer being damaged under a long-term high-pressure environment and helps to extend the service life of the filter element.

[0015] Optionally, the outer guide layer is a polyester stretch mesh sleeve.

[0016] By adopting the above technical solution, the polyester extended mesh sleeve is hydrophobic and oleophilic, which helps the droplets to be discharged from the drainage layer more smoothly from the coalescing filter element, thereby helping to increase the service life of the filter element.

[0017] Optionally, the bottom opening of the outer guide layer is connected to a connecting bottom plate, the top opening of the outer guide layer is provided with a connecting top plate, the top edge of the outer guide layer is connected to a connecting card plate, the top of the connecting card plate is provided with a connecting slot, the edge of the connecting top plate is connected to a connecting column, and the connecting column is clamped in the connecting slot.

[0018] By adopting the above technical solution, the arrangement of the connecting column and the connecting card plate realizes a detachable connection between the connecting top plate and the outer guide layer.

[0019] Optionally, a lifting handle is connected to the connecting top plate.

[0020] By adopting the above technical solution, the provision of the lifting handle makes it convenient for operators to install and disassemble the coalescing filter element.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Through the mutual cooperation of the inner skeleton, coalescing layer, supporting layer, drainage layer and pre-filtration layer, the filtration efficiency of the gas-liquid coalescing filter element is improved;

[0023] 2. The polyester extended mesh is hydrophobic and oleophilic, which helps the droplets to be discharged from the drainage layer more smoothly to the coalescing filter element, thus helping to increase the service life of the filter element;

[0024] 3. The setting of the connecting column and the connecting card plate realizes the detachable connection between the top plate and the outer guide layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of an embodiment of the present application used to embody a high-strength and high-throughput gas-liquid coalescing filter element.

[0026] Figure 2 It is a cross-sectional view used to illustrate the internal structure of the coalescing filter element in the embodiment of the present application.

[0027] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0028] Figure 4 yes Figure 2 Enlarged view of part B in the middle.

[0029] Explanation of the accompanying symbols: 1. Inner skeleton; 2. Guide layer; 3. Pre-filtration layer; 4. Coagulation layer; 5. Support layer; 6. Outer skeleton; 7. Drainage layer; 8. Outer guide layer; 9. Connecting bottom plate; 10. Connecting card plate; 101. Connecting card slot; 11. Pull handle; 12. Connecting column; 13. Connecting top plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 The present application is further described in detail. The present application provides a high-strength and high-throughput gas-liquid coalescing filter element, which has the effect of improving the filtration efficiency of the gas-liquid coalescing filter element.

[0031] Reference Figure 1 、 Figure 2 and Figure 4A high-strength, high-throughput gas-liquid coalescing filter element includes an inner frame 1, a guide layer 2, a pre-filtration layer 3, a coalescing layer 4, a support layer 5, an outer frame 6, a drainage layer 7, and an outer guide layer 8. The inner frame 1, the guide layer 2, the pre-filtration layer 3, the coalescing layer 4, the support layer 5, the outer frame 6, the drainage layer 7, and the outer guide layer 8 are all arranged in a cylindrical shape with both ends open. The inner frame 1, the guide layer 2, the pre-filtration layer 3, the coalescing layer 4, the support layer 5, the outer frame 6, the drainage layer 7, and the outer guide layer 8 are of equal length. The inner frame 1, the guide layer 2, the pre-filtration layer 3, the coalescing layer 4, the support layer 5, the outer frame 6, the drainage layer 7, and the outer guide layer 8 are coaxially sleeved together from the inside to the outside.

[0032] Reference Figure 2-4 The inner skeleton 1 and the outer skeleton 6 are both stainless steel perforated spiral meshes, and the guide layer 2 and the support layer 5 are both high-strength metal wire meshes. The pre-filtration layer 3 is a polyester spray-melt layer, the coalescing layer 4 is an ultra-fine glass fiber bonded by a special resin, the drainage layer 7 is a polyester filter cotton layer, and the outer guide layer 8 is a polyester extended mesh sleeve. The bottom opening of the outer guide layer 8 is connected to a connecting bottom plate 9, and the top edge of the outer guide layer 8 is fixedly connected to a plurality of connecting card plates 10 along the circumferential direction. A connecting top plate 13 is provided at the top of the outer guide layer 8, and a lifting handle 11 is fixedly connected to the side of the connecting top plate 13 away from the outer guide layer 8. The edge of the connecting top plate 13 is fixedly connected to a plurality of connecting columns 12 along the circumferential direction, and the plurality of connecting columns 12 are arranged in a one-to-one correspondence with the plurality of connecting card plates 10. A connecting slot 101 for accommodating the connecting column 12 is provided at the top of the connecting card plate 10 . The connecting plate is made of elastic material. The opening width of the connecting slot 101 is slightly smaller than the diameter of the connecting column 12 . The connecting column 12 is snapped into the connecting slot 101 .

[0033] Reference Figure 4 The guide layer 2 provides sufficient support for the coalescing filter element while creating abundant circulation channels for droplets. The pre-filtration layer 3, composed of a polyester spray-melt layer, also has ample space for droplet circulation and a large dirt-receiving area, helping to improve the filtration efficiency of the coalescing filter element. Both the inner frame 1 and the outer frame 6 are made of stainless steel perforated spiral mesh. The spiral shapes of the outer frame 6 and the inner frame 1 facilitate liquid flow along the spiral shape, helping to further increase the filtration efficiency of the coalescing filter element.

[0034] Reference Figure 4, the pre-filtered medium flows through the coalescing layer 4, and the smaller particle size impurities and liquid droplets in the air flow are intercepted by several ultra-fine glass fibers in the coalescing layer 4 under the mechanism of inertial collision, diffusion interception and direct interception. The small droplets formed by coalescence pass through the support layer 5 and the exoskeleton 6 in turn and enter the drainage layer 7. The exoskeleton 6 is arranged between the support layer 5 and the drainage layer 7, so that the drainage layer 7 can be relatively independent, giving the small droplets sufficient coalescence and growth space. Since the exoskeleton 6 is made of stainless steel punched spiral mesh and the support layer 5 is made of high-strength metal wire mesh, the pore size of the two is loose and fixed, and at the same time has high strength, which can make the small droplets easily discharged after coalescing into large droplets, and is not easy to cause blockage, further improving the filtration efficiency of the coalescing filter element.

[0035] Reference Figure 4 The outer guide layer 8 is positioned outside the other structures and is made of a polyester stretch mesh. It is hydrophobic and oleophilic, facilitating the drainage of droplets from the drainage layer 7 along the mesh. Furthermore, the outer guide layer 8 is high-pressure resistant, reducing the likelihood of damage to the drainage layer 7 and fiber shedding under prolonged high pressure. The coalescing filter element of the present application not only maintains a high gas-liquid coalescing effect, but also extends its service life and possesses high compressive strength, reducing the likelihood of shedding of the drainage layer 7.

[0036] The implementation principle of a high-strength and high-throughput gas-liquid coalescing filter element in the embodiment of the present application is as follows: the guide layer 2 provides sufficient support for the coalescing filter element while providing abundant circulation channels for the droplets, and the pre-filtration layer 3 has abundant droplet circulation space and a large pollution receiving area, which helps to improve the filtration efficiency of the coalescing filter element. The pre-filtered medium flows through the coalescing layer 4, and the smaller particle size impurities in the air flow are intercepted by several ultra-fine glass fibers in the coalescing layer 4. The drainage layer 7 can be relatively independent, giving small droplets sufficient coalescence and growth space. The outer guide layer 8 is covered on the outside of other structures. The outer guide layer 8 facilitates the discharge of droplets from the drainage layer 7 along the network, and the outer guide layer 8 is resistant to high pressure, which can reduce the possibility of the drainage layer 7 being dispersed and damaged under long-term high pressure, and the possibility of fiber shedding.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-strength, high-throughput gas-liquid coalescing filter element, comprising an inner skeleton (1), a coalescing layer (4), a support layer (5), and a drainage layer (7), wherein the inner skeleton (1), the coalescing layer (4), the support layer (5), and the drainage layer (7) are all arranged in a cylindrical shape, and the inner skeleton (1), the coalescing layer (4), the support layer (5), and the drainage layer (7) are coaxially arranged in sequence from the inside to the outside, and characterized in that: It also includes a pre-filter layer (3), which is cylindrical and arranged between the inner skeleton (1) and the coalescing layer (4), and is a polyester melt-sprayed layer.

2. The high-strength, high-throughput gas-liquid coalescing filter element according to claim 1, characterized in that: It also includes a guide layer (2), which is cylindrical and arranged between the pre-filter layer (3) and the inner skeleton (1), and is a metal wire mesh.

3. The high-strength, high-throughput gas-liquid coalescing filter element according to claim 2, characterized in that: It also includes an exoskeleton (6), which is cylindrical and arranged between the support layer (5) and the drainage layer (7). The exoskeleton (6) is a stainless steel perforated spiral mesh.

4. The high-strength, high-throughput gas-liquid coalescing filter element according to claim 3, characterized in that: It also includes an outer guide layer (8), the guide layer (2) is cylindrical, and the guide layer (2) is sleeved on the outside of the drainage layer (7).

5. The high-strength, high-throughput gas-liquid coalescing filter element according to claim 4, characterized in that: The outer guide layer (8) is a polyester stretch mesh sleeve.

6. The high-strength, high-throughput gas-liquid coalescing filter element according to claim 5, characterized in that: The bottom opening of the outer guide layer (8) is connected to a connecting bottom plate (9), the top opening of the outer guide layer (8) is provided with a connecting top plate (13), the top edge of the outer guide layer (8) is connected to a connecting card plate (10), the top of the connecting card plate (10) is provided with a connecting card slot (101), the edge of the connecting top plate (13) is connected to a connecting column (12), and the connecting column (12) is clamped and arranged in the connecting card slot (101).

7. The high-strength, high-throughput gas-liquid coalescing filter element according to claim 6, characterized in that: The connecting top plate (13) is connected to a lifting handle (11).

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