CN218901009U - Dead-angle-free filter element easy to clean - Google Patents

Abstract

The utility model provides a dead-angle-free filter element easy to clean, which comprises a supporting framework and filter cloth. The supporting framework comprises an upper sealing cover, a cylinder body and a lower sealing cover which are sequentially connected from top to bottom, and the filter cloth is detachably sleeved outside the cylinder body. The upper sealing cover is provided with a liquid guide pipe, the bottom end of the liquid guide pipe is inserted into the barrel, a liquid guide channel is formed between the outer side wall of the liquid guide pipe and the inner side wall of the barrel, and a circulation gap is formed between the bottom end of the liquid guide pipe and the lower sealing cover. The side wall of the cylinder body is provided with a plurality of first flow holes which are communicated with the liquid guide channel. The outer side wall of the cylinder body is also provided with a plurality of deformation grooves, a plurality of second flow holes communicated with the liquid guide channels are formed in the deformation grooves, and the deformation grooves are annularly arranged on the periphery of the axis of the cylinder body. The filter element without dead angle is easy to clean, and the dead angle can be prevented from being cleaned in the filter element, so that the cleaning effect of the filter element is improved.

Description

Dead-angle-free filter element easy to clean

Technical Field

The utility model belongs to the field of filtering equipment, and particularly relates to a dead-angle-free filter element easy to clean.

Background

The candle filter is a common solid-liquid separation device, and solid particles in the suspension can be removed through the candle filter, so that clear liquid is obtained. For realizing the solid-liquid separation purpose, the inside filter core that is equipped with of current candle filter generally, traditional filter core mainly includes filter cloth, real wall pipe and many porous pipes, and wherein many porous pipes are annular arrangement in real wall pipe outside to form the braced skeleton of filter core, the filter cloth then wraps up in braced skeleton's outside for intercept the solid matter in the material to be filtered.

When filtering, the filter cloth can compress tightly under the pressure effect of suspension material and paste on the surface of braced skeleton, and the inside liquid phase composition of suspension material will pass the filter cloth and get into braced skeleton inside afterwards to leave the filter core along real wall pipe, the solid particle then can be held back at the filter cloth surface to form the filter cake layer. After the filtration is finished, a worker needs to reversely purge the filter element by using compressed air so as to enable the filter cloth to expand and deform, thereby breaking the filter cake layer and separating from the surface of the filter cloth, and achieving the purposes of unloading cakes and removing slag.

However, the existing filter element can form a cleaning dead angle at the splicing part of two adjacent porous pipes and the splicing part of the porous pipe and the solid wall pipe, and solid particles remained in the cleaning dead angle can not be separated from the filter element in the process of reverse purging, so that the cleaning effect of the filter element can be influenced. When the candle filter is applied to the food industry or the pharmaceutical industry, the solid particles remained in the dead angle can be cleaned, so that the mixing of multiple batches of materials can be caused, and the unnecessary risk is caused.

Disclosure of Invention

In view of the above, the present utility model aims to provide a dead-angle-free easy-to-clean filter element to solve the above technical problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the filter element comprises a support framework and filter cloth, wherein the support framework comprises an upper sealing cover, a cylinder body and a lower sealing cover which are sequentially connected from top to bottom, and the filter cloth is detachably sleeved outside the cylinder body; a liquid guide pipe is arranged on the upper sealing cover, the bottom end of the liquid guide pipe is inserted into the barrel, a liquid guide channel is formed between the outer side wall of the liquid guide pipe and the inner side wall of the barrel, and a circulation gap is formed between the bottom end of the liquid guide pipe and the lower sealing cover; the side wall of the cylinder body is provided with a plurality of first flow holes which are communicated with the liquid guide channel; the outer side wall of the cylinder body is also provided with a plurality of deformation grooves, a plurality of second flow holes communicated with the liquid guide channels are formed in the deformation grooves, and the deformation grooves are annularly arranged on the periphery of the axis of the cylinder body.

Further, the length direction of the deformation groove is parallel to the axis direction of the cylinder, and the length of the deformation groove is smaller than that of the cylinder.

Further, the bottom of the deformation groove is an arc-shaped surface, and the arc top of the arc-shaped surface faces the axis of the cylinder.

Further, a transitional cambered surface is arranged between the inner side wall of the deformation groove and the outer side wall of the cylinder body.

Further, a sealing groove is formed in the top surface of the upper sealing cover, and a sealing ring is arranged in the sealing groove.

Further, a hemispherical liquid collecting tank with an upward opening is arranged on the top surface of the lower sealing cover.

Compared with the prior art, the dead-angle-free filter element easy to clean has the following advantages:

the filter element which is free of dead angles and easy to clean can replace a porous tube in the traditional filter element to support filter cloth by using the cylinder with the deformed groove. When filtering, the existence of deformation recess can provide deformation space for the filter cloth, makes things convenient for the filter cloth to laminate mutually with the barrel body lateral wall to improve the area of utilization of filter cloth, when carrying out reverse purging, will expand deformation with the filter cloth that deformation recess laminates mutually, consequently can be convenient for make the filter cake layer of filter cloth outside deposit break, thereby reaches the purpose of unloading cake slagging-off. Secondly, because be equipped with the transition cambered surface between the inside wall of deformation recess and the lateral wall of barrel in this device, and the tank bottom of deformation recess is the arcwall face, consequently can avoid supporting the outside dead angle that forms to be difficult to clean of skeleton to improve the cleaning performance of filter core. In addition, this device is equipped with the water conservancy diversion passageway between the inside wall of barrel and the lateral wall of catheter, consequently can also avoid supporting the inside clean dead angle that forms of skeleton to prevent that solid particle from taking place to remain in the filter core inside.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a conventional filter element for cleaning dead corners according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a dead-angle-free easy-to-clean filter element according to an embodiment of the utility model;

FIG. 3 is a schematic view of a partial cut-away of an upper cover region according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a cylinder according to an embodiment of the present utility model;

fig. 5 is a schematic view of a partial cut-away view of an under-cap region according to an embodiment of the present utility model.

Reference numerals illustrate:

11-solid wall tube; 12-a porous tube; 13-dead angle cleaning; 2-capping; 21-sealing the groove; 3-catheter; 4-a cylinder; 41-a first flow hole; 42-deformation grooves; 421-second flow holes; 5-lower sealing cover; 51-hemispherical sump; 6-filtering cloth.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The utility model provides a no dead angle easily cleans filter core, its structure can be schematically by fig. 2-5, as shown in the drawing, and no dead angle easily cleans filter core in this embodiment includes braced skeleton and filter cloth 6, and wherein braced skeleton includes upper cover 2, barrel 4 and lower closing cap 5 that connect from top to bottom in order, and filter cloth 6 detachable cover is established in barrel 4 outside, and is equipped with catheter 3 on upper cover 2. When the filter is performed, liquid phase components in the suspension material to be treated penetrate through the filter cloth 6 and enter the supporting framework, and leave the device through the liquid guide tube 3, and solid particles are intercepted by the filter cloth 6, so that a filter cake layer is formed outside the filter cloth 6. When carrying out the reverse sweep of compressed air, staff's accessible catheter 3 is to this device inside leading-in compressed air, and the outside filter cloth 6 of barrel 3 will take place the inflation deformation this moment to make the filter cake layer take place to break, and then realize unloading cake slagging-off's purpose.

Optionally, to improve the connection tightness between the filter element and the candle filter, a sealing groove 21 may be provided on the top surface of the upper cover 2, and a sealing ring (not shown in the figure) may be provided inside the sealing groove 21. After the filter element is installed on the candle filter, the sealing ring can seal the spliced part, so that the material is prevented from flowing along the spliced gap.

In addition, in order to facilitate guiding the material inside the supporting frame, a hemispherical liquid collecting tank 51 with an upward opening may be further provided on the top surface of the lower cover 5. The hemispherical sump 51 guides the material to the inside of the liquid guide tube 3 during the filtering operation, and the hemispherical sump 51 guides the compressed air to the outside of the cylinder 4 during the reverse purging operation.

In the prior art, the supporting framework of the filter element of the candle type filter is generally composed of a solid wall tube 11 and a plurality of porous tubes 12, and the solid wall tube 11 and the porous tubes 12 are fixed by adopting a welding mode. As shown in fig. 1, the connecting parts of two adjacent porous pipes 12 of the conventional filter element and the connecting parts of the porous pipes 12 and the solid wall pipes 11 form dead cleaning angles 13. When the reverse purging is performed, residual solid particles in the dead angle 13 cannot smoothly leave the filter element, so that the cleaning effect of the filter element is reduced, and the filter element cannot be applied to industries with high requirements on sanitation, such as food, medicine and the like.

To solve this problem, the present embodiment is provided with a plurality of deformation grooves 42 on the outer side wall of the cylinder 4, and the plurality of deformation grooves 42 are annularly arranged on the circumferential side of the axis of the cylinder 4. During processing, the cylinder 4 can be integrally formed in a stamping mode, so that a splicing gap is avoided being formed on the cylinder 4. When assembled, the bottom end of the catheter 3 should be inserted into the interior of the barrel 4, at which time a catheter channel will be formed between the outer sidewall of the catheter 3 and the inner sidewall of the barrel 4, and a flow gap will be formed between the bottom end of the catheter 3 and the lower cover 5. In addition, in order to facilitate the liquid phase component in the suspension to be treated to enter the cylinder 4, a plurality of first flow holes 41 should be provided on the sidewall of the cylinder 4, a plurality of second flow holes 421 should be provided in the deformation groove 42, and the first flow holes 41 and the second flow holes 421 are both communicated with the liquid guiding channel.

During the filtering operation, the suspension material to be treated will exert a pressure on the filter cloth 6 so that the filter cloth 6 is in engagement with the cylinder 4. Because the cylinder 4 is provided with a plurality of deformation grooves 42, the part of the filter cloth 6 overlapped with the deformation grooves 42 enters the deformation grooves 42, so that the utilization area of the filter cloth 6 can be increased, and the filtering efficiency of suspension materials can be improved. When the reverse purging operation is performed, the filter cloth 6 in the deformation groove 42 can leave the deformation groove 42, so that the filter cloth 6 is expanded and deformed, and a filter cake layer at the outer side of the filter cloth 6 can be broken and fall off, so that the cake unloading and deslagging operation of the candle filter is facilitated.

Alternatively, as shown in fig. 4, the length direction of the deformation groove 42 in the present embodiment should be parallel to the axial direction of the cylinder 4, and the length of the deformation groove 42 should be smaller than the length of the cylinder 4. The staff can adjust the quantity and the shape of the deformation grooves 42 according to actual needs, so that the filter element meets various working requirements.

In order to avoid the formation of a cleaning dead angle outside the cylinder body 4, a transitional cambered surface is arranged between the inner side wall of the deformation groove 42 and the outer side wall of the cylinder body 4, correspondingly, the bottom of the deformation groove 42 is also processed into an arc surface, and the arc top of the arc surface faces the axis of the cylinder body 4. Because the groove bottom of the deformation groove 42 is an arc surface, and a transitional cambered surface is arranged between the deformation groove 42 and the cylinder 4, the cylinder 4 forms a smooth and round outer contour. Compared with the welding structure of the porous pipes 12 of the traditional filter element, the cylinder 4 in the embodiment can avoid the outer side of the supporting framework from forming a cleaning dead angle, thereby improving the cleaning effect of the filter element.

In addition, because a diversion channel exists between the cylinder body 4 and the liquid guide tube 3, the device can not form a dead cleaning angle for storing solid particles in the support framework. Therefore, the filter element can be prevented from generating solid substance residues after cleaning work is completed, and the use requirements of high-sanitation industries such as food, medicine and the like are met.

Effects of the above scheme are described below:

the embodiment provides a no dead angle is easy clean filter core, is equipped with deformation recess on the barrel to improve the area of utilization of filter cloth in the filtration process, and make things convenient for the filter cloth to carry out expansion deformation at reverse blowing in-process. Secondly, this device can improve the smooth degree of barrel outside profile through the arcwall face at transition cambered surface and deformation recess tank bottom to avoid supporting the outside clean dead angle that forms of skeleton, ensure that the filter core obtains good cleaning effect. In addition, this device is equipped with the water conservancy diversion passageway between the inside wall of barrel and the lateral wall of catheter, consequently can avoid supporting the inside clean dead angle that forms of skeleton to further improve the cleaning performance of filter core.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (6)

1. The utility model provides an easy clean filter core in no dead angle which characterized in that: the filter cloth filter comprises a support framework and filter cloth (6), wherein the support framework comprises an upper sealing cover (2), a cylinder body (4) and a lower sealing cover (5) which are sequentially connected from top to bottom, and the filter cloth (6) is detachably sleeved outside the cylinder body (4); a liquid guide pipe (3) is arranged on the upper sealing cover (2), the bottom end of the liquid guide pipe (3) is inserted into the cylinder body (4), a liquid guide channel is formed between the outer side wall of the liquid guide pipe (3) and the inner side wall of the cylinder body (4), and a circulation gap is formed between the bottom end of the liquid guide pipe (3) and the lower sealing cover (5); the side wall of the cylinder body (4) is provided with a plurality of first flow holes (41), and the first flow holes (41) are communicated with the liquid guide channel; the outer side wall of the cylinder body (4) is also provided with a plurality of deformation grooves (42), a plurality of second flow holes (421) communicated with the liquid guide channels are formed in the deformation grooves (42), and the deformation grooves (42) are annularly arranged on the periphery of the axis of the cylinder body (4).

2. The dead-angle-free easy-to-clean filter cartridge of claim 1, wherein: the length direction of the deformation groove (42) is parallel to the axis direction of the cylinder body (4), and the length of the deformation groove (42) is smaller than the length of the cylinder body (4).

3. The dead-angle-free easy-to-clean filter cartridge of claim 1, wherein: the bottom of the deformation groove (42) is an arc-shaped surface, and the arc top of the arc-shaped surface faces the axis of the cylinder body (4).

4. The dead-angle-free easy-to-clean filter cartridge of claim 1, wherein: a transitional cambered surface is arranged between the inner side wall of the deformation groove (42) and the outer side wall of the cylinder body (4).

5. The dead-angle-free easy-to-clean filter cartridge of claim 1, wherein: the top surface of the upper sealing cover (2) is provided with a sealing groove (21), and a sealing ring is arranged inside the sealing groove (21).

6. The dead-angle-free easy-to-clean filter cartridge of claim 1, wherein: the top surface of the lower sealing cover (5) is provided with a hemispherical liquid collecting tank (51) with an upward opening.

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