Magnetic filtering device

Abstract

The utility model relates to the technical field of filtering equipment, in particular to a magnetic filtering device. The magnetic filtering device comprises a main shell, a spacer bush, a magnet and a filtering piece, and the main shell is provided with a water inlet. The spacer bush is sleeved with the main shell and provided with a water outlet and a filtering opening, an inner cavity and an outer cavity are formed in the spacer bush, and the water inlet, the inner cavity, the filtering opening, the outer cavity and the water outlet are sequentially communicated to form a filtering channel for water flow to pass through. The magnet is arranged in an inner cavity of the spacer bush, and the filtering piece is installed at the filtering opening. When water flow flows into the inner cavity in the filtering channel, the magnet adsorbs magnetic impurities in the water flow, and when the water flow flows through the filtering opening, the filtering piece filters non-magnetic impurities in the water flow, so that the magnetic filtering device can filter the magnetic impurities and the non-magnetic impurities in the water flow, and the filtering effect of the magnetic filtering device is improved; the filtering function of the magnetic filtering device is expanded, and the application range of the magnetic filtering device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a magnetic filtering device. Background Art

[0002] In the fluid delivery pipelines such as kitchen and bathroom or floor heating, especially in the pipelines that deliver hot water, magnetic impurities such as rust and non-magnetic impurities are inevitably present. A magnetic filter device is installed on the delivery pipeline to filter the water. The existing magnetic filter device uses a built-in magnet (usually a magnet) to absorb magnetic impurities such as rust, but it is difficult to effectively remove non-magnetic impurities, resulting in the accumulation of non-magnetic impurities in the delivery pipeline. In severe cases, it will cause blockage of the delivery pipeline, increase the fluid delivery resistance in the delivery pipeline, and even affect the service life of the equipment installed on the delivery pipeline. Utility Model Content

[0003] The utility model aims to provide a magnetic filtering device to filter non-magnetic impurities and expand the filtering function of the magnetic filtering device.

[0004] To achieve this purpose, the technical solution adopted by the utility model is:

[0005] The magnetic filtering device comprises a main housing, a spacer, a magnet and a filter element, wherein the main housing is provided with a water inlet; the spacer is sleeved in the main housing and is provided with a water outlet and a filter port, the spacer has an inner cavity and an outer cavity inside, the water inlet, the inner cavity, the filter port, the outer cavity and the water outlet are sequentially connected to form a filter channel for water flow to pass through;

[0006] The magnet is arranged in the inner cavity of the spacer, and the filter element is installed at the filter port.

[0007] As an optional solution, the spacer includes a sleeve and a separator ring, wherein the separator ring is disposed in the sleeve to separate the interior of the sleeve into the inner cavity and the outer cavity; the bottom end of the separator ring extends to the bottom end of the sleeve and is provided with the filter port.

[0008] As an optional solution, the filter element is a filter cartridge with openings at both axial ends, the circumferential side wall of the filter element is provided with filter holes, the inner cavity is connected to the outer cavity through the filter holes, and one end of the filter element is sleeved on the bottom end of the separation ring.

[0009] As an optional solution, a sewage outlet is provided at the bottom of the main shell, and the sewage outlet is located below the other end of the filter element.

[0010] As an optional solution, a sewage discharge valve is provided at the sewage discharge outlet, and the sewage discharge valve is used to open or close the sewage discharge outlet.

[0011] As an optional solution, the bottom of the main shell has a guide cone portion, and the guide cone portion has a guide cone surface arranged to be inclined downward and inward from top to bottom, and the other end of the filter element abuts against the guide cone surface.

[0012] As an optional solution, the spacer sleeve is provided with a water passing window, the water inlet is connected with the inner cavity through the water passing window, and the water passing window and the water inlet are staggered.

[0013] As an optional solution, the inner wall of the spacer is provided with a guide protrusion, and the guide protrusion has a drainage surface for guiding the water flow toward the magnet.

[0014] As an optional solution, the magnetic filtering device further comprises a three-way valve, and the three-way valve comprises a water inlet joint, a water outlet joint and a connecting joint;

[0015] The connecting joint includes an outer sleeve and an inner sleeve which are connected to each other, the inner sleeve is respectively connected to the water outlet joint and the water outlet, a cavity is formed between the inner sleeve and the outer sleeve, and the cavity is respectively connected to the water inlet joint and the water inlet.

[0016] As an optional solution, the magnetic filtering device also includes a cover body, which is covered on the top of the main shell and pressed against the spacer; the magnet is installed in the cover body, and the part of the cover body where the magnet is installed passes through the inner cavity.

[0017] The beneficial effects of the utility model are:

[0018] The magnetic filter device proposed by the utility model has a magnet that absorbs magnetic impurities in the water flow when water flows into the inner cavity in the filter channel, and the filter element filters non-magnetic impurities in the water flow when the water flows through the filter port, so that the magnetic filter device can filter both magnetic and non-magnetic impurities in the water flow, thereby improving the filtering effect of the magnetic filter device, expanding the filtering function of the magnetic filter device, and improving the applicable scenarios of the magnetic filter device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a magnetic filtering device provided by an embodiment of the utility model;

[0020] Figure 2 is a longitudinal cross-sectional view of a magnetic filtering device provided by an embodiment of the utility model;

[0021] Figure 3 is a transverse cross-sectional view of a magnetic filtering device provided by an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the spacer provided in the embodiment of the utility model. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the structure of the spacer provided in the embodiment of the utility model. Figure 2 ;

[0024] Figure 6 It is a schematic diagram of the assembly structure of the cover body, the spacer sleeve and the filter element provided in the embodiment of the utility model.

[0025] The names and numbers of the components in the figure are as follows:

[0026] 1. Main housing; 11. Water inlet; 12. Drain outlet; 13. Drain valve; 14. Guide cone; 141. Guide cone surface;

[0027] 2. spacer; 21. sleeve; 211. inner cavity; 212. outer cavity; 213. water outlet; 214. water window; 215. guide protrusion; 2151. drainage surface; 216. slot; 22. separator ring; 221. filter port;

[0028] 3. Magnet; 4. Filter element; 5. Three-way valve; 51. Water inlet joint; 52. Water outlet joint; 53. Connecting joint; 531. Outer sleeve; 532. Inner sleeve; 6. Cover body. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0034] like Figure 1 and Figure 2 As shown, this embodiment proposes a magnetic filtering device, which is usually installed in a conveying pipeline to filter magnetic impurities (generally rust, etc.) in the water flow in the conveying pipeline to purify the water quality. Specifically, the magnetic filtering device includes a main shell 1, a spacer 2 and a magnet 3, the main shell 1 is provided with a water inlet 11, the spacer 2 is sleeved in the main shell 1 and is provided with a water outlet 213 and a filter port 221, the spacer 2 has an inner cavity 211 and an outer cavity 212, the water inlet 11, the inner cavity 211, the filter port 221, the outer cavity 212 and the water outlet 213 are connected in sequence to form a filtering channel for the water flow to pass through, and the magnet 3 is arranged in the inner cavity 211 of the spacer 2.

[0035] In order to facilitate connection with the delivery pipeline, the magnetic filtering device also includes a three-way valve 5, which includes an inlet joint 51, an outlet joint 52 and a connecting joint 53. The connecting joint 53 includes an outer sleeve 531 and an inner sleeve 532 that are connected to each other. The inner sleeve 532 is connected to the outlet joint 52 and the water outlet 213 respectively. A cavity is formed between the inner sleeve 532 and the outer sleeve 531, and the cavity is connected to the inlet joint 51 and the water inlet 11 respectively. Specifically, the delivery pipeline is connected to the inlet joint 51 and the outlet joint 52 respectively, and the path of water flow in the filtration channel (such as Figure 2 and Figure 3(as shown by the arrow in the middle) is: the water flow of the delivery pipeline passes through the water inlet joint 51, the cavity and the water inlet 11 in sequence and then flows into the cavity between the spacer 2 and the main shell 1, and then the water flows into the inner cavity 211 of the spacer 2, and the magnet filters the magnetic impurities in the water flow in the inner cavity 211 of the spacer 2, that is, adsorbs the magnetic impurities in the water flow, and then the water flows through the filter port 221 into the outer cavity 212, and then flows from the water outlet 213 of the outer cavity 212 into the water outlet joint 52 of the three-way valve 5 until it flows back into the delivery pipeline, and finally completes the magnetic impurity removal of the water flow.

[0036] Furthermore, an extension sleeve may be provided between the connection joint 53 and the water outlet 213, and the extension sleeve is used to connect the water outlet 213 and the connection joint 53. By providing the extension sleeve, the problem of insufficient length of the connection joint 53 of the three-way valve 5 can be compensated, and there is no need to frequently replace different models of three-way valves 5.

[0037] like Figure 2 and Figure 4 As shown, the magnetic filtering device also includes a cover body 6, which is covered on the top of the main shell 1 and pressed against the spacer 2. The magnet 3 is installed in the cover body 6, and the part of the cover body 6 on which the magnet 3 is installed is penetrated into the inner cavity 211. The cover body 6 includes a flat plate portion and a hollow rod portion, and the flat plate portion and the hollow rod portion are connected to form a roughly T-shaped structure. The magnet 3 is installed inside the rod portion, and the flat plate portion of the cover body 6 is covered on the top of the main shell 1 and pressed against the spacer 2, which not only improves the sealing between the cover body 6 and the main shell 1 to avoid water leakage, but also fixes the position of the spacer 2 in the main shell 1, thereby improving the stability of the installation of the spacer 2 in the main shell 1. In addition, the rod portion of the cover body 6 is assembled with the magnet 3 as a whole, which increases the length of the magnet 3, so as to increase the contact time and contact area between the water flow and the magnet 3, and enhance the adsorption effect of the magnet 3.

[0038] like Figure 4 and Figure 5 As shown, the spacer 2 is provided with a water window 214, and the water inlet 11 is connected with the inner cavity 211 through the water window 214. The water window 214 and the water inlet 11 are staggered, so that the water flows between the main shell 1 and the spacer 2 for a distance and then turns and passes through the water window 214 (as shown in FIG. Figure 3 The water flow is better buffered, the impact force of the water flow on the magnet 3 is reduced, and the water flow is prevented from washing away the magnetic impurities adsorbed by the magnet 3 and re-entering the water flow, so as to ensure the adsorption capacity of the magnet 3 and improve the filtering performance of the magnetic filtering device.

[0039] Further, the inner wall of the spacer 2 is provided with a guide protrusion 215, and the guide protrusion 215 has a drainage surface 2151 for guiding the water flow to the magnet 3. By providing the guide protrusion 215, the water flow entering the spacer 2 from the water window 214 will impact the guide protrusion 215, and the guide protrusion 215 has a blocking effect on the water flow, further reducing the flow rate of the water flow and reducing the impact of the water flow on the magnet 3. The water window 214 of this embodiment is set to a quadrilateral to reduce the obstruction of the water flow, so that the water flow can impact the top and bottom of the guide protrusion 215 and form a vortex. Of course, the water outlet window can also be set to other shapes such as a circle, an ellipse, and the shape of the water window 214 is not specifically limited here.

[0040] Alternatively, if Figure 4 and Figure 5 As shown, two water-passing windows 214 are provided, and the two water-passing windows 214 are symmetrically arranged on both sides of the water inlet 11, and the guide protrusion 215 is arranged in the middle of the two water-passing windows 214. The guide protrusion 215 has two symmetrically arranged drainage surfaces 2151, and the two drainage surfaces 2151 intersect at one end facing the magnet 3. The water flows on both sides of the guide protrusion 215 are counteracted and squeezed after passing through the drainage surfaces 2151, which accelerates the rotation of the water flow to form a backflow, reduces the flow rate of the water flow and forms an eddy current. The eddy current rotates around the magnet 3 in the middle of the inner cavity 211, so that the water flow is fully in contact with the magnet 3, thereby increasing the contact time between the water flow and the magnet 3, and making the magnetic impurities in the water flow more easily adsorbed by the magnet 3.

[0041] It should be noted that the water window 214 is arranged on the arc surface of the spacer 2 facing away from the water inlet 11, so that the water window 214 is farther away from the water inlet 11, which increases the flow distance of water between the spacer 2 and the main shell 1, which is beneficial to reducing the water flow speed, so that the water flow enters the inner cavity 211 more stably, and further reduces the impact on the magnet 3.

[0042] like Figure 3 As shown, the intersection of the two drainage surfaces 2151, the center of the magnet 3 and the center of the water inlet 11 are on the same straight line, so that the water entering from the water inlet 11 flows symmetrically to the two drainage surfaces 2151, thereby improving the vortex effect. In addition, the drainage surface 2151 is set as an arc surface, and the arc surface is smoothly connected to the inner wall of the spacer 2 to provide smooth guidance for the water flow, so that the water flow flows smoothly through the drainage surface 2151, which is conducive to the formation of subsequent vortices.

[0043] like Figure 4 and Figure 5As shown, the spacer 2 includes a sleeve 21 and a separator ring 22. The separator ring 22 is arranged in the sleeve 21 to separate the interior of the sleeve 21 into an inner cavity 211 and an outer cavity 212. The bottom end of the separator ring 22 extends to the bottom end of the sleeve 21 and is provided with a filter port 221. Specifically, the separator ring 22 is coaxially arranged with the sleeve 21, and the upper part of the separator ring 22 is an unclosed circular ring structure with a cutout. The cutout of the unclosed circular ring structure is directly opposite to the water passing window 214. A baffle is provided between the outer edge of the cutout and the sleeve 21 to separate the inner cavity 211 from the outer cavity 212, so that the water flow of the inner cavity 211 can only enter the outer cavity 212 through the filter port 221. The separator ring 22 extends to the bottom of the sleeve 21 to form a closed circular ring structure to form a circular filter port 221. Since the filter port 221 is arranged at the bottom of the spacer 2, the water flow needs to flow through the entire separation ring 22 from top to bottom before flowing from the filter port 221 at the bottom to the outer cavity 212, thereby increasing the contact time between the water flow and the magnet 3 and improving the filtering effect on magnetic impurities.

[0044] Specifically, the bottom of the sleeve 21 is provided with a plurality of slots 216 along the axial direction, and the inner side wall of the main housing 1 is provided with a plurality of support plates accordingly. When the spacer 2 is installed inside the main housing 1, the slots 216 are engaged with the support plates in a one-to-one manner. The engagement of the slots 216 with the support plates realizes the circumferential limitation of the spacer 2, thereby improving the stability of the installation of the spacer 2.

[0045] like Figure 2 and Figure 6 As shown, the magnetic filter device also includes a filter element 4, which is installed at the filter port 221. When the water flows in the filter channel to the inner cavity 211, the magnet 3 absorbs the magnetic impurities in the water flow, and when the water flows through the filter port 221, the filter element 4 filters the non-magnetic impurities in the water flow, so that the magnetic filter device can filter the magnetic impurities and non-magnetic impurities in the water flow, thereby improving the filtering effect of the magnetic filter device, expanding the filtering function of the magnetic filter device, and improving the applicable scenarios of the magnetic filter device.

[0046] Specifically, Figure 6 As shown, the filter element 4 is a filter cartridge with openings at both ends of the axial direction, and a filter hole is provided on the circumferential side wall of the filter element 4. The inner cavity 211 is connected with the outer cavity 212 through the filter hole, and one end of the filter element 4 is sleeved on the bottom end of the separation ring 22. The filter element 4 is sleeved on the separation ring 22, so that the filter element 4 can be easily disassembled and assembled without the need for additional fasteners such as bolts, thereby improving the efficiency of disassembly and assembly of the filter element 4.

[0047] like Figure 2As shown, a drain port 12 is provided at the bottom of the main housing 1, and the drain port 12 is located below the other end of the filter element 4 (i.e., the bottom end of the filter element 4). After the non-magnetic impurities in the water flow are filtered by the filter element 4, they are precipitated from the bottom opening of the filter element 4 to the bottom of the main housing 1, and finally the non-magnetic impurities are quickly discharged from the outside of the main housing 1 through the drain port 12 to ensure the cleanliness of the inside of the main housing 1.

[0048] like Figure 1 and Figure 2 As shown, a drain valve 13 is provided at the drain port 12, and the drain valve 13 is used to open or close the drain port 12. By providing the drain valve 13, the drain port 12 can be manually opened and closed, so that the drain cycle and drain time can be flexibly selected according to the use requirements. The drain valve 13 is a conventional valve body for controlling the opening and closing of the pipeline, which can be obtained by external purchase, and the specific structure of the drain valve 13 is not repeated.

[0049] Specifically, the bottom of the main housing 1 has a guide cone 14, and the guide cone 14 has a guide cone surface 141 that is inclined from top to bottom and inward, and the other end of the filter 4 abuts against the guide cone surface 141. After falling from the filter 4, the non-magnetic impurities are guided by the guide cone surface 141 and then precipitated at the sewage outlet 12, which can not only prevent the non-magnetic impurities from remaining on the inner wall of the main housing 1 and ensure the cleanliness of the inside of the main housing 1, but also facilitate all non-magnetic impurities to be discharged from the main housing 1 through the sewage outlet 12 to the outside, thereby improving the sewage discharge effect.

[0050] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnetic filtering device, characterized in that: The invention comprises a main shell (1), a spacer (2), a magnet (3) and a filter element (4); the main shell (1) is provided with a water inlet (11); the spacer (2) is sleeved in the main shell (1) and is provided with a water outlet (213) and a filter port (221); the spacer (2) has an inner cavity (211) and an outer cavity (212); the water inlet (11), the inner cavity (211), the filter port (221), the outer cavity (212) and the water outlet (213) are sequentially connected to form a filter channel for water to flow through; The magnet (3) is arranged in the inner cavity (211) of the spacer (2), and the filter element (4) is installed at the filter port (221).

2. The magnetic filtering device according to claim 1, characterized in that: The spacer (2) comprises a sleeve (21) and a separation ring (22); the separation ring (22) is arranged in the sleeve (21) to separate the interior of the sleeve (21) into the inner cavity (211) and the outer cavity (212); the bottom end of the separation ring (22) extends to the bottom end of the sleeve (21) and is provided with the filter port (221).

3. The magnetic filtering device according to claim 2, characterized in that: The filter element (4) is a filter cartridge with openings at both axial ends. The circumferential side wall of the filter element (4) is provided with filter holes. The inner cavity (211) is connected to the outer cavity (212) through the filter holes. One end of the filter element (4) is sleeved on the bottom end of the separation ring (22).

4. The magnetic filtering device according to claim 3, characterized in that: The bottom of the main housing (1) is provided with a sewage outlet (12), and the sewage outlet (12) is located below the other end of the filter element (4).

5. The magnetic filtering device according to claim 4, characterized in that: The sewage outlet (12) is provided with a sewage valve (13), and the sewage valve (13) is used to open or close the sewage outlet (12).

6. The magnetic filtering device according to claim 4, characterized in that: The bottom of the main housing (1) has a guide cone (14), and the guide cone (14) has a guide cone surface (141) arranged to be inclined from top to bottom and inward, and the other end of the filter element (4) abuts against the guide cone surface (141).

7. The magnetic filtering device according to any one of claims 1 to 6, characterized in that: The spacer (2) is provided with a water passing window (214), the water inlet (11) is connected to the inner cavity (211) through the water passing window (214), and the water passing window (214) and the water inlet (11) are arranged in a staggered manner.

8. The magnetic filtering device according to any one of claims 1 to 6, characterized in that: The inner wall of the spacer (2) is provided with a guide protrusion (215), and the guide protrusion (215) has a drainage surface (2151) for guiding the water flow toward the magnet (3).

9. The magnetic filtering device according to any one of claims 1 to 6, characterized in that: The magnetic filtering device further comprises a three-way valve (5), wherein the three-way valve (5) comprises a water inlet joint (51), a water outlet joint (52) and a connecting joint (53); The connecting joint (53) comprises an outer sleeve (531) and an inner sleeve (532) which are sleeved together, the inner sleeve (532) being connected to the water outlet joint (52) and the water outlet (213) respectively, and a cavity is formed between the inner sleeve (532) and the outer sleeve (531), and the cavity is connected to the water inlet joint (51) and the water inlet (11) respectively.

10. The magnetic filtering device according to any one of claims 1 to 6, characterized in that: The magnetic filtering device also includes a cover body (6), which is covered on the top of the main shell (1) and pressed against the spacer (2); the magnet (3) is installed in the cover body (6), and the part of the cover body (6) on which the magnet (3) is installed is passed through the inner cavity (211).

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