Y-shaped filter

Abstract

A Y-shaped filter belongs to the technical field of pipeline conveying and filtering mechanisms and comprises a straight-pipe-shaped main pipe, an inlet pipe joint and an outlet pipe joint are formed at the two ends of the main pipe respectively, an inclined branch pipe is formed in the middle of the main pipe, a filter cartridge is arranged in the branch pipe, and an opening and closing door is arranged at the end of the branch pipe; the filter cartridge comprises a steel net ring tightly attached to the branch pipe, and one end of the steel net ring is in contact with the opening and closing door; a circle of filter cotton net is arranged on the inner side of the steel net ring; an elastic net is fixed on the filter cotton net and transversely cuts the filter cotton net, and an accommodating space is formed by the end, close to the opening and closing door, of the elastic net and the opening and closing door. In order to solve the problems that in the prior art, a liquid outlet main pipe is blocked by impurities and the impurities are extruded out of a filter screen, the filter with the impurity collecting structure arranged in the filter screen is provided, and the impurities in the filter are stored at the bottom of a branch pipe through the impurity collecting structure; and the filter screen through which the main pipe passes cannot be easily blocked.

Description

Technical Field

[0001] The present application belongs to the technical field of pipeline transmission and filtering mechanisms, and in particular relates to a Y-type filter. Background Art

[0002] Y-type filter is an indispensable filtering device in the pipeline system for conveying media. Y-type filter is usually installed at the inlet end of pressure reducing valve, pressure relief valve, water level valve or other equipment to remove impurities in the medium to protect the normal use of valves and equipment.

[0003] In the prior art, a Y-type filter generally includes a straight tube-type connecting pipe, an inclined branch pipe is provided on the connecting pipe, a cylindrical ring-shaped filter screen is inserted in the branch pipe, and the upper end of the filter screen is inserted in the connecting pipe, so that water at the inlet end of the connecting pipe passes through the filter screen and is output through the outlet end of the connecting pipe. The filter screen in the prior art is positioned by the inner wall of the branch pipe, so the filter screen is generally attached to the inner wall of the branch pipe, and the filter screen holes attached to the inner wall of the branch pipe cannot play a filtering effect. The real filtering effect is the filter screen holes located in the connecting pipe. When the filter screen holes in the connecting pipe are blocked, the filter fails.

[0004] In order to solve the problems in the prior art, a technical solution is disclosed in a public document with publication number CN220834482U, entitled a high-efficiency Y-type filter. A cylindrical positioning seat is threaded inside the main pipe, an inclined hole opposite to the connecting hole is formed on the outer wall of the positioning seat, a positioning ring groove is formed on the inner wall of the lower end of the inclined hole, a water inlet hole connected to the inclined hole is formed on the right end surface of the positioning seat, an inclined guide surface is formed on the left end surface, an axial limiting concave hole is formed on the bottom surface of the guide surface, the guide surface on the positioning seat is located directly above the connecting hole, and the right end surface is located on the right side of the connecting hole.

[0005] In this regard, the inventor of the present application believes that it is difficult to fix the positioning seat in the main pipe, and the sealing performance with the main pipe is reduced. The annular flow channel connected to the connecting hole between the outer wall of the filter screen and the inner wall of the branch pipe will squeeze some impurities into the main pipe, making it impossible to perform complete filtration. Utility Model Content

[0006] The utility model aims to solve the problem in the prior art that debris blocks the liquid outlet main pipe and the problem that debris is squeezed out of the filter screen in the prior art, and provides a filter with a debris collection structure arranged in the filter screen, the debris collection structure stores the debris in the filter at the bottom of the branch pipe, so that the filter screen through which the main pipe passes will not be easily blocked.

[0007] In order to achieve the above technical objectives, the following technical solutions are provided: a Y-type filter, comprising a straight pipe main pipe, with inlet and outlet joints respectively formed at both ends of the main pipe, an inclined branch pipe formed in the middle of the main pipe, a filter cartridge arranged in the branch pipe, and an opening and closing door arranged at the end; the filter cartridge comprises a steel mesh ring tightly attached to the branch pipe, one end of the steel mesh ring is in contact with the opening and closing door; a circle of filter cotton net is arranged on the inner side of the steel mesh ring; an elastic net is fixed on the filter cotton net, wherein the elastic net crosses the filter cotton net, and forms a accommodating space with the opening and closing door near the opening and closing door end.

[0008] The present application extends the filter cartridge into the main pipe, and uses the filter cartridge to cut off the main pipe, so that the impurities in the liquid in the pipe inlet joint will be filtered and remain in the filter cartridge after passing through the filter cartridge, and the cleaning liquid will flow out from the outlet pipe joint. In this technical solution, the elastic net will bend toward the opening and closing door under the impact of the fluid, wherein the mesh of the elastic net will become larger so that the impurities in the liquid will enter the accommodation space; then during the reflux of the fluid, the elastic net will reset, wherein the mesh of the elastic net will become smaller so that the liquid will reflux into the filter cartridge, and the impurities will be locked in the accommodation space.

[0009] In a feasible manner, the other end of the steel mesh ring extends into the main pipe to intercept the main pipe to form a filtering surface, ensuring that the steel mesh ring can completely intercept the main pipe.

[0010] In an practicable manner, a connecting rope is arranged on the inner side of the filter cotton net, and the connecting rope is fixedly connected to a support rod fixed on the opening and closing door, so as to ensure that the filter cotton can be directly taken out when the opening and closing door is opened.

[0011] In an practicable manner, a partition plate with mesh holes is arranged in the middle of the elastic net, and the partition plate is bound and fixed by the elastic net on all sides. The partition plate plays a role in increasing the stress on the elastic net, so that the mesh holes have a larger deformation to facilitate the entry of debris.

[0012] In an practicable manner, the other end of the steel mesh ring is a flexible steel mesh, which fits the shape of the junction between the branch pipe and the main pipe, so that the steel mesh ring located below is directly below the main pipe flow channel and will not extend into the main pipe flow channel to prevent debris from entering the filter cartridge.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The steel mesh ring in the main pipe section of the present application will not be blocked by debris, and the comparative document with publication number CN220834482U is also prevented from squeezing out the debris from the filter cartridge and then flowing out of the outlet pipe joint due to excessive flow. In the present application, the debris will even be stored in a space near the opening and closing door in the branch pipe, and the storage space for the debris can be directly taken out when the opening and closing door is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 1 main pipe, 2 filter cartridge, 3 opening and closing door, 4 storage space,

[0016] 11 inlet pipe joint, 12 outlet pipe joint, 13 branch pipe, 21 steel mesh ring, 22 filter cotton mesh, 23 elastic mesh, 24 partition plate,

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0018] Figure 2 for Figure 1 The front view structure of the outlet pipe joint;

[0019] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0020] Figure 4 It is the overall structural diagram of the filter cartridge;

[0021] Figure 5 for Figure 4 A schematic diagram of the spatial orientation of the accommodation space;

[0022] Figure 6 for Figure 5 Sectional view at the middle BB; DETAILED DESCRIPTION

[0023] like Figures 1 to 3 In the embodiment shown, a Y-type filter comprises a straight main pipe 1, at both ends of which are respectively formed with an inlet pipe joint 11 and an outlet pipe joint 12, and in the middle of the main pipe 1 is formed with an oblique branch pipe 13, in which a filter cartridge 2 is arranged, and at the end thereof an opening and closing door 3 is arranged. Figures 4 to 6 In the figure, the filter cartridge 2 includes a steel mesh ring 21 which is tightly attached to the branch pipe 13, and one end of the steel mesh ring 21 is in contact with the opening and closing door 3; wherein, the other end of the steel mesh ring 21 extends into the main pipe 1 to intercept the main pipe 1 to form a filtering surface; the end is also a flexible steel mesh, and the flexible steel mesh fits the shape of the joint between the branch pipe 13 and the main pipe 1 to prevent the protruding edge of the steel mesh ring 21 at the bottom from blocking debris from entering the filter cartridge 2.

[0024] It also includes a circle of filter cotton mesh 22 located inside the steel mesh ring 21; the filter cotton mesh 22 can absorb debris, and under the action of flow, some debris is directly pressed into the filter cotton mesh 22 to store the debris, preventing it from actively moving in the steel mesh ring 21 and squeezing out of the steel mesh ring 21; and the filter cotton mesh 22 has a certain thickness, and it will not be filled with debris and block the entire filter cotton mesh 22, and when the content of debris in the filter cotton mesh 22 is high, there will be an alarm device to remind the operator to replace the filter cotton mesh 22. The setting of the alarm device is a conventional means in the prior art, and this application will not describe it.

[0025] It also includes an elastic net 23 fixed on the filter cotton net 22, wherein the elastic net 23 crosses the filter cotton net 22 and forms a receiving space 4 with the opening and closing door 3 near the end thereof. In this embodiment, a connecting rope is provided on the inner side of the filter cotton net 22, and the connecting rope is fixedly connected to a support rod 31 fixed on the opening and closing door 3. In a preferred example, a partition plate 24 with mesh holes is provided in the middle of the elastic net 23, and the partition plate 24 is bound and fixed by the elastic net 23 on all sides.

[0026] The filtered liquid enters from the inlet pipe joint 11 and flows out from the outlet pipe joint 12, wherein the angle between the branch pipe 13 and the main pipe 1 is an acute angle, and the direction is the outlet pipe joint 12 end. In the branch pipe 13, the filtered liquid directly enters the bottom of the filter cartridge 2 under the obstruction of the filter cartridge 2, and the particles inside will not all enter the filter cotton net 22 at the first time. The impact force of the filtered liquid will push the elastic net 23 toward the opening and closing door 3 to form a deformation, which makes the mesh on the surface of the elastic net 23 larger, and the particles in the filtered liquid enter the accommodation space 4. Then the elastic net 23 recovers and shrinks the mesh, and the particles in the accommodation space 4 cannot flow out of the accommodation space 4. In this way, the particles in the filtered liquid are locked in the accommodation space 4, and the part of the filter cartridge 2 located at the cross section of the main pipe 1 will not be easily blocked. When the particles in the accommodation space 4 are full or the particles on the filter cotton net 22 are full, an alarm will be triggered to call the operator to replace the filter cotton net 22 and the elastic net 23.

[0027] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0028] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of this patent and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this patent application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this patent application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0031] In this specification, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A Y-type filter, comprising a straight pipe main pipe (1), wherein both ends of the main pipe (1) are respectively formed with an inlet pipe joint (11) and an outlet pipe joint (12), and the middle of the main pipe (1) is formed with an oblique branch pipe (13), characterized in that: A filter cartridge (2) is arranged in the branch pipe (13), and an opening and closing door (3) is arranged at the end thereof; The filter cartridge (2) comprises a steel mesh ring (21) which is in close contact with the branch pipe (13), and one end of the steel mesh ring (21) is in contact with the opening and closing door (3); A circle of filter cotton mesh (22) is arranged inside the steel mesh ring (21); An elastic net (23) is fixed on the filter cotton net (22), wherein the elastic net (23) crosses the filter cotton net (22) and forms a receiving space (4) with the opening and closing door (3) at the end close to the opening and closing door (3).

2. The Y-type filter according to claim 1, characterized in that: The other end of the steel mesh ring (21) extends into the main pipe (1) to intercept the main pipe (1) to form a filtering surface.

3. The Y-type filter according to claim 1, characterized in that: A connecting rope is provided on the inner side of the filter cotton net (22), and the connecting rope is fixedly connected to a support rod (31) fixed on the opening and closing door (3).

4. The Y-type filter according to claim 1, characterized in that: A partition plate (24) with mesh holes is arranged in the middle of the elastic net (23), and the partition plate (24) is bound and fixed by the elastic net (23) on all sides.

5. The Y-type filter according to claim 2, characterized in that: The other end of the steel mesh ring (21) is a flexible steel mesh, and the flexible steel mesh fits the shape of the connection between the branch pipe (13) and the main pipe (1).

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