Anisotropic double-spherical filter

Abstract

The application relates to a hetero-directional double-spherical filter, which comprises a main spherical filter body with a hollow spherical structure; an inlet connecting pipe vertically connected to the upper end of the main spherical filter body; a sealing plug installed at the lower end of the main spherical filter body to seal the lower end opening of the main spherical filter body; an outlet connecting pipe, the lower end of which is connected to one side of the inlet connecting pipe, and the lower end opening of the outlet connecting pipe faces the opening of the upper end of the main spherical filter body; a secondary spherical filter body with a hollow spherical structure, which is connected to the upper end of the outlet connecting pipe; a filter screen barrel installed at the upper end opening position of the secondary spherical filter body for filtering particles; and an outlet connector installed at the upper end opening position of the secondary spherical filter body for fixing the filter screen barrel. The filter has the advantages of compact structure, small pressure loss, wide application range, large filtering area, low frequency of replacing and cleaning the filter screen, convenient maintenance, and high working pressure resistance.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of filters, and particularly relates to a hetero-directional double-spherical filter. BACKGROUND

[0002] At present, common filters mainly include basket filters and various forms of pipeline filters.

[0003] The basket filter is mainly composed of a connecting pipe, a cylinder, a filter basket, flanges, a flange cover and fasteners, and can remove larger solid impurities in fluid. However, small-particle impurities in water can only rely on the filter core which is easily blocked.

[0004] The pipeline filter is composed of a steel pipe shell welded with pipe flanges at two ends, a tubular filter core and a blowdown assembly. Commonly used are Y-type filters and T-type filters. The working principles of the two common filters are mainly that when liquid passes through the cylinder into the filter basket, solid impurity particles are blocked in the filter basket, and clean fluid is discharged through the filter outlet. When cleaning is needed, the main pipe bottom plug is unscrewed, the fluid is discharged, the flange cover is removed, and then the filter is reassembled after cleaning.

[0005] The basket filter has problems of large structure, large mass and inconvenient blowdown, especially for filters with large nominal diameter and high operating pressure, which have small filtering area and large resistance.

[0006] The pipeline filter has a compact structure and a simple design structure, and the effective filtering area is small due to the limitation of the structure. SUMMARY

[0007] In order to improve the problems of the existing filters such as large structure, low pressure resistance, small filtering area, easy blocking of the filter screen, large mass, low filtering precision, poor filtering effect or inconvenient blowdown, the application provides a hetero-directional double-spherical filter.

[0008] The technical scheme adopted by the application to solve the technical problems is:

[0009] The hetero-directional double-spherical filter comprises:

[0010] The main spherical filter body is a hollow spherical structure, and the upper end and the lower end are provided with openings;

[0011] The inlet connecting pipe is vertically connected to the upper end of the main spherical filter body;

[0012] The sealing plug is installed at the lower end of the main spherical filter body to close the lower end opening of the main spherical filter body;

[0013] The outlet connecting pipe is connected to one side of the inlet connecting pipe at the lower end, and the lower end opening of the outlet connecting pipe faces the opening of the upper end of the main spherical filter body.

[0014] a sub-spherical filter body, which is a hollow spherical structure, and has an upper end and a lower end with openings, and is connected to the upper end of the outlet connector;

[0015] a filter basket, which is installed at the upper end opening of the sub-spherical filter body, and is used for filtering particles;

[0016] an outlet joint, which is installed at the upper end opening of the sub-spherical filter body, and is used for fixing the filter basket.

[0017] Preferably, in the oblique double-spherical filter of the present application, the sealing plug is cylindrical, and the top of the sealing plug is hemispherical and extends into the center of the main spherical filter body.

[0018] Preferably, in the oblique double-spherical filter of the present application, the upper end of the inlet connector is provided with an inlet joint for connecting to an external pipeline.

[0019] Preferably, in the oblique double-spherical filter of the present application, the sealing plug has external threads, the lower end of the main spherical filter body has internal threads, and the sealing plug is screwed to the lower end of the main spherical filter body.

[0020] Preferably, in the oblique double-spherical filter of the present application, the two ends of the sub-spherical filter body are provided with internal threads, one end of the outlet joint is provided with external threads, and the upper end of the outlet connector is provided with external threads; the two ends of the sub-spherical filter body are screwed to the outlet joint and the outlet connector, respectively.

[0021] Preferably, in the oblique double-spherical filter of the present application, the bottom of the internal threads of the upper end of the sub-spherical filter body is provided with a flange, the edge of the filter basket is matched with the flange, and the lower end of the outlet joint clamps the edge of the filter basket.

[0022] Preferably, in the oblique double-spherical filter of the present application, a first sealing ring is arranged between the main spherical filter body and the sealing plug.

[0023] Preferably, in the oblique double-spherical filter of the present application, a second sealing ring is arranged between the outlet connector and the sub-spherical filter body.

[0024] Preferably, in the oblique double-spherical filter of the present application, a third sealing ring is arranged between the sub-spherical filter body and the outlet joint.

[0025] Preferably, in the oblique double-spherical filter of the present application, the outlet connector, the inlet connector, and the main spherical filter body are integrally connected by welding.

[0026] The oblique double-spherical filter of the present application has the following advantages:

[0027] 1. There are two-stage sedimentation tanks before the filter element, which can make full use of the water flow rate to change the sedimentation.

[0028] 2. The main ball-type filter tank has a forward-convex sealing plug, which can effectively block the impact of water flow and prevent sediment backwash.

[0029] 3. The main and auxiliary spheres can be cleaned, and the filter can be disassembled and cleaned, making maintenance easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The technical solution of the present application is further described below with reference to the accompanying drawings and embodiments.

[0031] Fig. 1 This is a schematic cross-sectional structural diagram of an assembled state of a non-directional double spherical filter according to an embodiment of the present application;

[0032] Fig. 2 This is a three-dimensional diagram of the assembled state of the different-direction double spherical filter according to an embodiment of the present application;

[0033] Fig. 3 This is a schematic cross-sectional structural diagram of the disassembled state of the anisotropic double-spherical filter according to an embodiment of the present application;

[0034] Fig. 4 This is a simulation result diagram of the embodiment of the present application when the inlet flow rate of the non-directional double spherical filter is 500 mm / s;

[0035] Fig. 5 This is a simulation result diagram of the embodiment of the present application when the inlet flow rate of the non-directional double spherical filter is 1000 mm / s;

[0036] Fig. 6 This is a simulation result diagram of the embodiment of the present application when the inlet flow rate of the non-directional double spherical filter is 2000 mm / s.

[0037] The reference numerals in the figures are:

[0038] 1 Inlet connector

[0039] 2 Import takeover

[0040] 3 Main spherical filter body

[0041] 4 First sealing ring

[0042] 5 Sealing plug

[0043] 6 Export takeover

[0044] 7 Second sealing ring

[0045] 8 filter barrel

[0046] 9 spherical filter body

[0047] 10 third sealing ring

[0048] 11 outlet joint. Embodiments

[0049] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the term "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] The technical solutions of the present application will be described in detail below with reference to the drawings and in combination with the embodiments. Embodiments

[0053] The present embodiment provides a heterodirectional double-spherical filter, as shown in Figs. 1-3 comprises:

[0054] The main spherical filter body 3 is a hollow spherical structure, and the upper end and the lower end are provided with openings;

[0055] The inlet connector 2 is vertically connected to the upper end of the main spherical filter body 3;

[0056] The sealing plug 5 is installed at the lower end of the main spherical filter body 3 to close the lower end opening of the main spherical filter body 3;

[0057] An outlet pipe 6 is connected to one side of the inlet pipe 2, and the lower end of the outlet pipe 6 is open towards the opening of the upper end of the main spherical filter body 3;

[0058] A sub-spherical filter body 9 is connected to the upper end of the outlet pipe 6, and has a hollow spherical structure with openings at the upper end and the lower end.

[0059] A filter net barrel 8 is installed at the opening of the upper end of the sub-spherical filter body 9, and is used for filtering particles.

[0060] An outlet joint 11 is installed at the opening of the upper end of the sub-spherical filter body 9, and is used for fixing the filter net barrel 8.

[0061] The hetero-directional double-spherical filter of the embodiment has two spherical filter bodies, and can withstand higher pressure. In principle, the main spherical filter body 3 forms a main sedimentation area for filtering particles with a density greater than water. The sub-spherical filter body 9 forms a sub-sedimentation area for filtering floating objects with a density less than water. The filter net barrel 8 forms a third filtration area, so that the filter net is not easy to be blocked, and has a longer service life. The filter precision of the filter net barrel 8 can be selected as 40 mesh, 80 mesh, or 120 mesh, so as to meet different filtering precision requirements and have a wider application range.

[0062] Under the same operating conditions, the hetero-directional double-spherical filter of the embodiment has a spherical shell wall thickness which is half of that of a cylindrical shell, so that the required metal material is less, and the mass is small. The structure is compact, and the occupied area is small. The pressure-bearing element is a spherical shell, and can withstand higher pressure. The filter precision of the filter net barrel can be selected as different levels, so as to meet different filtering precision requirements and have a wider application range. Three filtering measures are provided, so as to ensure better filtering effect, not easy to be blocked, and reduce the replacement and cleaning cycle of the filter net. The hetero-directional double-spherical filter of the embodiment has the advantages of compact structure, small pressure loss, wide application range, large filtering area, low frequency of replacement and cleaning of the filter net, convenient maintenance, and can withstand higher working pressure. The filter not only changes the shortcomings of general filters, but also realizes the deposition and filtration of three kinds of particles. The design fully prolongs the service life of the filter net, and fully considers the cleaning and maintenance of the filter net and the filter body.

[0063] Design simulation demonstration:

[0064] Simulation purpose: to further understand the structure and fluid characteristics, and analyze the structure design.

[0065] Simulation software: Unigraphics NX.

[0066] Simulation conditions: standard medium water, one standard atmosphere, and temperature 20℃.

[0067] Simulation variables: inlet flow rate 500mm / s, 1000mm / s, 2000mm / s.

[0068] As Figs. 4-6 shown, referring to the above simulation results can be concluded as follows:

[0069] Fluid through the filter, the main spherical filter body 3, the flow rate of the secondary spherical filter body 9 is significantly reduced to a relatively static state, which is beneficial to the deposition of particulate matter.

[0070] Fluid through the filter, the flow rate of the secondary spherical filter body 9 is significantly smaller than that at the inlet joint, which is more conducive to prolonging the service life of the filter screen.

[0071] Fluid through the filter, the main spherical filter body 3 bears the maximum pressure, the pressure is about 1.5-2 times the inlet, the pressure change is not big, and no special treatment is needed here due to pressure bearing.

[0072] Preferably, the counter-rotating double spherical filter of the embodiment, the sealing plug 5 is cylindrical, the top of which extends into the center of the main spherical filter body 3, and the top of the sealing plug 5 is hemispherical. It is beneficial to slow down the water flow impact and effectively slow down the repeated impact of particulate matter on the filter screen.

[0073] Preferably, the counter-rotating double spherical filter of the embodiment, the upper end of the inlet pipe 2 is provided with an inlet joint 1 for connecting to an external pipeline.

[0074] Preferably, the counter-rotating double spherical filter of the embodiment, the sealing plug 5 has external threads, the lower end of the main spherical filter body 3 has internal threads, and the sealing plug 5 is threadedly connected to the lower end of the main spherical filter body 3. The two ends of the secondary spherical filter body 9 are provided with internal threads, one end of the outlet joint 11 is provided with external threads, and the upper end of the outlet pipe 6 is provided with external threads; the two ends of the secondary spherical filter body 9 are respectively threadedly connected to the outlet joint 11 and the outlet pipe 6. The sealing plug 5 at the bottom of the main spherical filter body 3 facilitates opening and cleaning of the internal accumulated dirt and pressure relief; the secondary spherical filter body 9 and the filter screen barrel 8 are fixed by thread tightening, which is convenient for replacement and cleaning.

[0075] Preferably, the counter-rotating double spherical filter of the embodiment, the bottom of the internal threads at the upper end of the secondary spherical filter body 9 is provided with a flange, the edge of the filter screen barrel 8 cooperates with the flange, and the lower end of the outlet joint 11 clamps the edge of the filter screen barrel 8, which facilitates replacement and fixation of the filter screen barrel 8.

[0076] Preferably, the hetero-dual spherical filter of the embodiment is provided with a first sealing ring 4 between the main spherical filter body 3 and the sealing plug 5; a second sealing ring 7 between the outlet connector 6 and the auxiliary spherical filter body 9; and a third sealing ring 10 between the auxiliary spherical filter body 9 and the outlet joint 11, thereby improving the overall sealing performance of the device.

[0077] Preferably, the outlet connector 6 of the hetero-dual spherical filter of the embodiment is integrally connected with the inlet connector 2 and the main spherical filter body 3 by welding.

[0078] The embodiment provides an assembling method of the filter:

[0079] The inlet connector 2 is welded on the upper part of the main spherical filter body 3; the six-way pipe thread of the inlet joint 1 is matched with a conventional six-way pipe;

[0080] The sealing plug 5 is fixed with the main spherical filter body 3 by screwing, which is more convenient for opening and cleaning the internal accumulated dirt of the filter and pressure relief, and the first sealing ring 4 is arranged between the sealing plug 5 and the main spherical filter body 3, thereby ensuring the sealing performance of the filter.

[0081] The lower part of the outlet connector 6 is welded with the upper part of the main spherical filter body 3, and the upper part of the outlet connector 6 is screwed with the lower part of the auxiliary spherical filter body 9, and the second sealing ring 7 is arranged therebetween;

[0082] The third sealing ring 10 is arranged between the auxiliary spherical filter body 9 and the outlet joint 11 and is screwed therebetween; and the filter basket 8 is screwed and fixed with the outlet joint 11, thereby being convenient for replacement.

[0083] The six-way pipe thread of the outlet joint 11 is matched with a conventional six-way pipe.

[0084] Technical requirements:

[0085] The maximum working pressure of the product is 10 MPa, the working temperature is -30℃~180℃, the main body and the joint are made of 304 stainless steel, the sealing ring is made of food-grade silicone, and the product meets the FDA food-grade requirements.

[0086] Based on the above ideal embodiments according to the application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the application. The technical scope of the application is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A double-spherical filter with different directions, characterized in that: include: The main spherical filter body (3) is a hollow spherical structure with openings at the upper and lower ends; An inlet pipe (2) vertically connected to the upper end of the main spherical filter body (3); A sealing plug (5) is installed at the lower end of the main spherical filter body (3) to close the lower end opening of the main spherical filter body (3); An outlet pipe (6), the lower end of the outlet pipe (6) is connected to one side of the inlet pipe (2), and the lower end opening of the outlet pipe (6) faces the upper end opening of the main spherical filter body (3); The secondary spherical filter body (9) is a hollow spherical structure with openings at the upper and lower ends, and is connected to the upper end of the outlet pipe (6); A filter barrel (8) is installed at the upper opening of the secondary spherical filter body (9) and is used to filter particles; An outlet connector (11) mounted at the upper opening of the secondary spherical filter body (9) for fixing the filter screen barrel (8); The outlet pipe (6) and the inlet pipe (2) form an angular difference; The sealing plug (5) is cylindrical, with its top extending into the center of the main spherical filter body (3), and the top of the sealing plug (5) is hemispherical.

2. The heterogeneous double spherical filter according to claim 1, characterized in that: An inlet connector (1) is provided at the upper end of the inlet pipe (2) for connecting to an external pipeline.

3. The heterogeneous double spherical filter according to claim 1, characterized in that: The sealing plug (5) has an external thread, and the lower end opening of the main spherical filter body (3) has an internal thread, and the sealing plug (5) is threadedly connected to the lower end of the main spherical filter body (3).

4. The heterogeneous double spherical filter according to any one of claims 1 to 3, characterized in that: Both ends of the auxiliary spherical filter body (9) are provided with internal threads, one end of the outlet joint (11) is provided with external threads, and the upper end of the outlet pipe (6) is provided with external threads; the two ends of the auxiliary spherical filter body (9) are respectively threadedly connected to the outlet joint (11) and the outlet pipe (6).

5. The heterogeneous double spherical filter according to claim 4, characterized in that: The bottom of the internal thread at the upper end of the secondary spherical filter body (9) is provided with a flange, the edge of the filter screen barrel (8) cooperates with the flange, and the lower end of the outlet joint (11) and the flange clamp the edge of the filter screen barrel (8).

6. The heterogeneous double spherical filter according to any one of claims 1 to 3, characterized in that: A first sealing ring (4) is provided between the main spherical filter body (3) and the sealing plug (5).

7. The heterogeneous double spherical filter according to any one of claims 1 to 3, characterized in that: A second sealing ring (7) is provided between the outlet pipe (6) and the secondary spherical filter body (9).

8. The heterogeneous double spherical filter according to any one of claims 1 to 3, characterized in that: A third sealing ring (10) is provided between the secondary spherical filter body (9) and the outlet joint (11).

9. The heterogeneous double spherical filter according to any one of claims 1 to 3, characterized in that: The outlet pipe (6), the inlet pipe (2) and the main spherical filter body (3) are connected into one piece by welding.

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