CN108568146A - Filter and its filter core - Google Patents
Filter and its filter core Download PDFInfo
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- CN108568146A CN108568146A CN201810570438.1A CN201810570438A CN108568146A CN 108568146 A CN108568146 A CN 108568146A CN 201810570438 A CN201810570438 A CN 201810570438A CN 108568146 A CN108568146 A CN 108568146A
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- 238000003466 welding Methods 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 13
- 230000008093 supporting effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
- B01D33/0307—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with bag, cage, hose, tube, sleeve or the like filtering elements
- B01D33/0315—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with bag, cage, hose, tube, sleeve or the like filtering elements arranged for inward flow filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
- B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
- B01D33/0376—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements supported
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
- B01D46/0053—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with vibrating filtering elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本发明涉及过滤器领域，特别涉及过滤器及其滤芯。滤芯包括底座、端盖和固定在底座和端盖之间的支撑筒，支撑筒上配置有过滤层，所述支撑筒内设有支撑在底座与端盖之间的支撑杆，支撑杆两端分别焊接在底座和端盖上，或者支撑杆的一端与端盖或者底座焊接固定，另一端与底座或端盖一体设置。本发明的过滤器的滤芯的底座与端盖之间设置有支撑杆，通过支撑杆和支撑筒的双重支撑作用，保证端盖不会脱落，提高滤芯的整体强度，解决了目前的过滤器滤芯的端盖在振动环境下容易掉落的问题。
The invention relates to the field of filters, in particular to filters and filter cores thereof. The filter element includes a base, an end cover and a support cylinder fixed between the base and the end cover. The support cylinder is provided with a filter layer. The support cylinder is provided with a support rod supported between the base and the end cover. The two ends of the support rod They are respectively welded on the base and the end cover, or one end of the support rod is welded and fixed to the end cover or the base, and the other end is integrated with the base or the end cover. A support rod is arranged between the base and the end cover of the filter element of the filter of the present invention. Through the double support function of the support rod and the support cylinder, the end cover will not fall off, the overall strength of the filter element is improved, and the current filter element is solved. The problem that the end cap is easy to fall off in a vibrating environment.
Description
技术领域technical field
本发明涉及过滤器领域，特别涉及过滤器及其滤芯。The invention relates to the field of filters, in particular to filters and filter cores thereof.
背景技术Background technique
传统的金属过滤器的微型滤芯包括端盖、底座及固定在端盖与底座之间的支撑筒，支撑筒上设置有金属的过滤层，过滤层可以采用烧结毡等过滤部件。支撑筒、过滤层均与底座和端盖焊接固定，但是这种金属过滤器使用在振动工况环境下，过滤器的微型滤芯强度低，端盖与支撑筒、过滤层之间容易脱落，造成滤芯容易损坏的问题。The micro-filter element of a traditional metal filter includes an end cap, a base, and a support cylinder fixed between the end cap and the base. The support cylinder is provided with a metal filter layer, and the filter layer can use filter components such as sintered felt. The support cylinder and the filter layer are welded and fixed to the base and the end cover. However, this metal filter is used in a vibration environment. The problem that the filter element is easily damaged.
发明内容Contents of the invention
本发明的目的是提供一种过滤器，以解决目前的过滤器滤芯的端盖在振动环境下容易脱落的问题；另外，本发明的目的还在于提供一种上述过滤器的滤芯。The object of the present invention is to provide a filter to solve the problem that the end cover of the current filter element is easy to fall off under the vibration environment; in addition, the object of the present invention is also to provide a filter element of the above-mentioned filter.
为实现上述目的，本发明的滤芯的技术方案为：滤芯包括底座、端盖和固定在底座和端盖之间的支撑筒，支撑筒上配置有过滤层，所述支撑筒内设有支撑在底座与端盖之间的支撑杆，支撑杆两端分别焊接在底座和端盖上，或者支撑杆的一端与端盖或者底座焊接固定，另一端与底座或端盖一体设置。In order to achieve the above object, the technical solution of the filter element of the present invention is: the filter element includes a base, an end cover and a support cylinder fixed between the base and the end cover, the support cylinder is provided with a filter layer, and the support cylinder is provided with a support For the support rod between the base and the end cover, the two ends of the support rod are respectively welded on the base and the end cover, or one end of the support rod is welded and fixed to the end cover or the base, and the other end is integrated with the base or the end cover.
进一步的，为了保证端盖的强度，同时提高支撑杆与端盖的固定效果，所述底座通流口为供滤芯内的流体流出的流体出口，所述端盖上设有供支撑杆插入的支撑杆焊接盲孔，方便加工，降低成本，由于端盖为承压件，设置的焊接盲孔可以避免端盖的焊缝成为端盖的薄弱区域，提高端盖承压强度。Further, in order to ensure the strength of the end cover and improve the fixing effect of the support rod and the end cover at the same time, the base flow port is a fluid outlet for the fluid in the filter element to flow out, and the end cover is provided with a support rod for insertion. The welding blind hole of the support rod is convenient for processing and reduces the cost. Since the end cover is a pressure-bearing part, the set welding blind hole can prevent the weld seam of the end cover from becoming a weak area of the end cover and improve the pressure bearing strength of the end cover.
进一步的，为了保证支撑杆与底座的固定效果，所述底座上设有支撑杆插入的支撑杆焊接通孔，底座与支撑杆焊接固定，固定方便，强度高。Further, in order to ensure the fixing effect of the support rod and the base, the base is provided with a support rod welding through hole through which the support rod is inserted, and the base and the support rod are welded and fixed, which is convenient for fixing and has high strength.
进一步的，为了提高对端盖的支撑效果，所述支撑筒为锥形筒，支撑筒靠近底座一端的截面积大于远离底座一端的截面积，锥形筒支撑效果好，进一步防止端盖的脱落，同时减弱滤芯在壳体内的节流作用。Further, in order to improve the supporting effect on the end cap, the supporting cylinder is a conical cylinder, and the cross-sectional area of the end of the supporting cylinder close to the base is larger than the cross-sectional area of the end far away from the base. The conical cylinder has a good supporting effect and further prevents the end cap from falling off. , and at the same time weaken the throttling effect of the filter element in the housing.
进一步的，所述底座的通径尺寸范围为5毫米至20毫米。Further, the diameter of the base ranges from 5 mm to 20 mm.
本发明的过滤器的技术方案：过滤器包括壳体和设置在壳体内的滤芯，所述滤芯包括底座、端盖和固定在底座和端盖之间的支撑筒，支撑筒上配置有过滤层，底座上设有供流体通过的底座通流口，所述支撑筒内设有支撑在底座与端盖之间的支撑杆，支撑杆两端分别焊接在底座和端盖上，或者支撑杆的一端与端盖或者底座焊接固定，另一端与底座或端盖一体设置。The technical scheme of the filter of the present invention: the filter includes a housing and a filter element arranged in the housing, the filter element includes a base, an end cover and a support cylinder fixed between the base and the end cover, and a filter layer is arranged on the support cylinder , the base is provided with a base flow port for fluid to pass through, the support tube is provided with a support rod between the base and the end cover, and the two ends of the support rod are respectively welded on the base and the end cover, or the support rod One end is welded and fixed with the end cover or the base, and the other end is integrated with the base or the end cover.
进一步的，所述底座通流口为供滤芯内的流体流出的流体出口，所述端盖上设有供支撑杆插入的支撑杆焊接盲孔。Further, the through opening of the base is a fluid outlet for the fluid in the filter element to flow out, and the end cover is provided with a support rod welding blind hole for inserting the support rod.
进一步的，所述底座上设有支撑杆插入的支撑杆焊接通孔。Further, the base is provided with welding through-holes for the support rods to be inserted into.
进一步的，所述壳体内设置有容纳滤芯的圆柱形腔，所述支撑筒设置在圆柱形腔内并与圆柱形腔同轴设置，所述支撑筒为锥形筒，支撑筒靠近底座一端的截面积大于远离底座一端的截面积。锥形筒支撑效果好，进一步防止端盖的脱落，同时减弱滤芯在圆柱形腔内的节流作用。Further, a cylindrical cavity for accommodating the filter element is provided in the housing, the support cylinder is arranged in the cylindrical cavity and coaxial with the cylindrical cavity, the support cylinder is a tapered cylinder, and the end of the support cylinder close to the base The cross-sectional area is greater than the cross-sectional area at the end away from the base. The support effect of the tapered cylinder is good, which further prevents the end cover from falling off, and at the same time weakens the throttling effect of the filter element in the cylindrical cavity.
进一步的，所述底座的通径尺寸范围为5毫米至20毫米。Further, the diameter of the base ranges from 5 mm to 20 mm.
本发明的有益效果：本发明的过滤器的滤芯的底座与端盖之间设置有支撑杆，通过支撑杆和支撑筒的双重支撑作用，保证端盖不会脱落，提高滤芯的整体强度，解决了目前的过滤器滤芯的端盖在振动环境下容易掉落的问题。Beneficial effects of the present invention: a support rod is arranged between the base of the filter element of the present invention and the end cover, through the double support function of the support rod and the support cylinder, the end cover is guaranteed not to fall off, the overall strength of the filter element is improved, and the solution The problem that the end cover of the current filter element is easy to fall under the vibration environment is solved.
附图说明Description of drawings
图1是本发明的滤芯的具体实施例的结构示意图；Fig. 1 is the structural representation of the specific embodiment of filter element of the present invention;
图2是本发明的滤芯的具体实施例的剖视图；Fig. 2 is the sectional view of the specific embodiment of filter element of the present invention;
图3是本发明的滤芯的具体实施例的端盖与支撑杆的结构示意图；Fig. 3 is the structural schematic diagram of the end cap and support rod of the specific embodiment of filter element of the present invention;
图4是本发明的滤芯的具体实施例的底座与支撑筒的结构示意图；Fig. 4 is a schematic structural view of a base and a support cylinder of a specific embodiment of the filter element of the present invention;
图5是本发明的滤芯的具体实施例的滤芯组装过程示意图；Fig. 5 is a schematic diagram of the filter element assembly process of a specific embodiment of the filter element of the present invention;
图中：1、底座；11、支撑板；12、底座通流口；13、底座环形定位槽；14、支撑杆焊接通孔；2、端盖；21、端盖环形定位槽；3、支撑筒；4、过滤层；5、支撑杆。In the figure: 1, the base; 11, the support plate; 12, the flow opening of the base; 13, the annular positioning groove of the base; 14, the welding through hole of the support rod; 2, the end cover; 21, the annular positioning groove of the end cover; 3, the support cylinder; 4, filter layer; 5, support rod.
具体实施方式Detailed ways
下面结合附图对本发明的实施方式作进一步说明。Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
本发明的滤芯的具体实施例，如图1和图2所示，滤芯包括底座1、端盖2和固定在底座1和端盖2之间的支撑筒3，底座上设置有底座流通口12，本实施例中底座流通口12为供流体流出滤芯的流体出口，支撑筒3支撑在底座1与端盖2之间，支撑筒3上设置有过滤层4，为了提高对过滤层的支撑效果，过滤层4设置在支撑筒的外围，本实施例中过滤层4为贴设固定在支撑筒3外围的烧结毡。The specific embodiment of the filter element of the present invention, as shown in Figure 1 and Figure 2, the filter element includes a base 1, an end cover 2 and a support cylinder 3 fixed between the base 1 and the end cover 2, the base is provided with a base flow port 12 In this embodiment, the base flow port 12 is the fluid outlet for the fluid to flow out of the filter element, the support cylinder 3 is supported between the base 1 and the end cover 2, and the support cylinder 3 is provided with a filter layer 4, in order to improve the support effect on the filter layer , The filter layer 4 is arranged on the periphery of the support cylinder. In this embodiment, the filter layer 4 is a sintered felt attached and fixed on the periphery of the support cylinder 3 .
为了保证滤芯的整体强度，支撑筒3的两端分别焊接固定在底座1和端盖2上，烧结毡的两端也分别焊接固定在底座1和端盖2上。为了进一步提高对端盖2的支撑效果，同时减弱滤芯在壳体内的节流效果，本实施例中，使用该滤芯的过滤器的壳体内设置有容纳滤芯的圆柱形腔，支撑筒设置在圆柱形腔内并与圆柱形腔同轴设置，支撑筒3为锥形筒，支撑筒3靠近底座1一端的截面积大于远离底座1一端的截面积，流体流入滤芯过程中，滤芯过滤层与圆柱形腔的腔壁之间留有一定的空间，能够减弱滤芯的节流作用，提高流体流量，另外，支撑筒3形成锥形支撑结构，提高对端盖的支撑强度。过滤层设置在支撑筒的外围，保证支撑筒对过滤层的支撑效果，防止过滤层被流体冲脱落。In order to ensure the overall strength of the filter element, the two ends of the support cylinder 3 are welded and fixed on the base 1 and the end cover 2 respectively, and the two ends of the sintered felt are also welded and fixed on the base 1 and the end cover 2 respectively. In order to further improve the supporting effect of the end cover 2 and at the same time weaken the throttling effect of the filter element in the housing, in this embodiment, the housing of the filter using the filter element is provided with a cylindrical cavity for accommodating the filter element, and the support cylinder is arranged on the cylinder The support cylinder 3 is a tapered cylinder, and the cross-sectional area of the end of the support cylinder 3 close to the base 1 is larger than the cross-sectional area of the end far away from the base 1. When the fluid flows into the filter element, the filter layer of the filter element and the cylinder There is a certain space between the cavity walls of the shaped cavity, which can weaken the throttling effect of the filter element and increase the fluid flow rate. In addition, the support cylinder 3 forms a tapered support structure to increase the support strength for the end cover. The filter layer is arranged on the periphery of the support cylinder to ensure the support effect of the support cylinder on the filter layer and prevent the filter layer from being washed off by the fluid.
支撑筒3内设置有支撑在底座1与端盖2之间的支撑杆5，本实施例中的滤芯为微型滤芯，滤芯整体的体积很小，底座为圆形底座，底座的通径尺寸范围为5毫米至20毫米，为了不影响滤芯的通流效果，本实施例中的支撑杆5的直径约为1毫米。受限于支撑杆5的小直径和滤芯的小型化，支撑杆5上加工螺纹难度较大，同时使用螺纹无法保证在振动环境下支撑杆5与底座1、端盖2的固定效果，本实施中的支撑杆5的两端分别焊接固定在端盖2和底座1上，以保证通过支撑杆5和支撑筒3的共同支撑作用，保证端盖2在振动环境下不会脱落。当然，在其他实施例中，支撑杆也可以与底座或者端盖为一体式设计。The support cylinder 3 is provided with a support rod 5 supported between the base 1 and the end cover 2. The filter element in this embodiment is a micro filter element, the overall volume of the filter element is very small, the base is a circular base, and the diameter size range of the base is 5 mm to 20 mm, in order not to affect the flow-through effect of the filter element, the diameter of the support rod 5 in this embodiment is about 1 mm. Limited by the small diameter of the support rod 5 and the miniaturization of the filter element, it is difficult to process the threads on the support rod 5. At the same time, the use of threads cannot guarantee the fixing effect of the support rod 5, the base 1, and the end cover 2 in a vibrating environment. The two ends of the support rod 5 are respectively welded and fixed on the end cover 2 and the base 1, so as to ensure that the end cover 2 will not fall off under the vibration environment through the joint support of the support rod 5 and the support tube 3. Of course, in other embodiments, the support rod can also be designed as an integral body with the base or the end cover.
本实施例中底座1上设有横跨底座1上的底座通流口的支撑板11，支撑板11横跨底座通流口12，减小底座通流口12被占用的空间，保证底座通流口12的面积。本实施例中的支撑杆为实心杆，其他实施例中，支撑杆也可以是空心杆，支撑杆端部开口与底座通流口对应，支撑杆5上设置与滤芯腔连通的连通口；其他实施例中，支撑板也可以是覆盖底座通流口的盖板，盖板上设置若干通孔，保证底座通流口的通流效果。In this embodiment, the base 1 is provided with a support plate 11 spanning the base flow port on the base 1, and the support plate 11 spans the base flow port 12 to reduce the occupied space of the base flow port 12 and ensure the base flow port. The area of the orifice 12. The support rod in this embodiment is a solid rod. In other embodiments, the support rod can also be a hollow rod. The opening at the end of the support rod corresponds to the flow port of the base. In an embodiment, the support plate may also be a cover plate covering the flow opening of the base, and several through holes are arranged on the cover plate to ensure the flow effect of the flow opening of the base.
本实施例中，为了方便支撑杆5与底座1、端盖2的焊接固定，底座1上设有供支撑杆5插入的支撑杆焊接通孔14，端盖2上设置有供支撑杆5插入的支撑杆焊接盲孔，支撑杆5的两端分别插装至支撑杆焊接通孔、支撑杆焊接盲孔内后进行焊接，方便焊接定位操作，保证加工精度。其他实施例中，也可以将支撑杆5直接焊接固定在底座1端面和端盖2的端面上。In this embodiment, in order to facilitate the welding and fixing of the support rod 5 with the base 1 and the end cover 2, the base 1 is provided with a support rod welding through hole 14 for the support rod 5 to be inserted, and the end cover 2 is provided with a support rod 5 for insertion. The welding blind hole of the supporting rod, the two ends of the supporting rod 5 are respectively inserted into the welding through hole of the supporting rod and the blind hole for welding of the supporting rod to be welded, so as to facilitate the welding positioning operation and ensure the machining accuracy. In other embodiments, the support rod 5 can also be directly welded and fixed on the end surface of the base 1 and the end surface of the end cover 2 .
如图3至图5所示，为了方便支撑筒3和过滤层4的焊接，端盖2边沿设置有端盖环形定位槽21，底座1边沿均设置有底座环形定位槽13，支撑筒3和过滤层4两端分别定位焊装在底座环形定位槽13和端盖环形定位槽21内。本实施例中的滤芯在加工过程如下：如图所示，首先将支撑杆5与端盖2通过激光焊接固定在一起，然后将支撑筒3插装至底座环形定位槽13内，并通过激光焊接将支撑筒3与底座1固定；将裁剪好的烧结毡的两端对接，并通过氩弧焊将烧结毡焊接成与支撑筒3适配的筒状结构；将过滤层4装入底座环形定位槽13内，然后安装端盖2和支撑杆5，使支撑杆5插入底座上的焊接通孔内，并使过滤层4和支撑筒3插入端盖环形定位槽21内，通过激光焊接将过滤层4与端盖2、底座1圆周焊接，完成滤芯的制作。其他实施例中，底座和顶盖上也可以直接通过焊接平面与对应的支撑筒和过滤层焊接，此时不需要设置环形定位槽。As shown in Figures 3 to 5, in order to facilitate the welding of the support cylinder 3 and the filter layer 4, the edge of the end cover 2 is provided with an annular positioning groove 21 for the end cover, and the edge of the base 1 is provided with an annular positioning groove 13 for the base, and the support cylinder 3 and The two ends of the filter layer 4 are fixedly welded in the annular positioning groove 13 of the base and the annular positioning groove 21 of the end cover respectively. The processing process of the filter element in this embodiment is as follows: as shown in the figure, firstly, the support rod 5 and the end cover 2 are fixed together by laser welding, and then the support cylinder 3 is inserted into the annular positioning groove 13 of the base, and the Fix the support cylinder 3 and the base 1 by welding; butt the two ends of the cut sintered felt, and weld the sintered felt into a cylindrical structure compatible with the support cylinder 3 by argon arc welding; put the filter layer 4 into the base ring In the positioning groove 13, install the end cover 2 and the support rod 5, so that the support rod 5 is inserted into the welding through hole on the base, and the filter layer 4 and the support cylinder 3 are inserted into the end cover annular positioning groove 21, and the The filter layer 4 is circumferentially welded with the end cover 2 and the base 1 to complete the manufacture of the filter element. In other embodiments, the base and the top cover may also be directly welded to the corresponding support cylinder and filter layer through the welding plane, and no annular positioning groove is required at this time.
本发明的过滤器的具体实施例，过滤器包括壳体和设置在壳体内的滤芯，其中滤芯的结构与上述滤芯的具体实施例中所述的结构相同，不再赘述。壳体内设置有容纳滤芯的圆柱形腔，支撑筒设置在圆柱形腔内并与圆柱形腔同轴设置，支撑筒为锥形筒，支撑筒靠近底座一端的截面积大于远离底座一端的截面积。其他实施例中，支撑筒也可以是圆柱形筒，此时为了减弱支撑筒的节流效果，可以在支撑筒与壳体之间预留足够的间隔。In a specific embodiment of the filter of the present invention, the filter includes a casing and a filter element disposed in the casing, wherein the structure of the filter element is the same as that described in the above specific embodiment of the filter element, and will not be repeated here. The housing is provided with a cylindrical cavity to accommodate the filter element. The support cylinder is arranged in the cylindrical cavity and coaxially with the cylindrical cavity. The support cylinder is a tapered cylinder. The cross-sectional area of the end of the support cylinder near the base is larger than the cross-sectional area of the end away from the base. . In other embodiments, the support cylinder may also be a cylindrical cylinder, and in this case, in order to weaken the throttling effect of the support cylinder, a sufficient interval may be reserved between the support cylinder and the housing.
Claims (9)
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