Multi-functional filter element for water purification

Abstract

The utility model relates to the technical field of water treatment, in particular to a multifunctional filter element for water purification. The water purification multi-functional filter element comprises an outer filter cartridge and an inner filter cartridge, the outer filter cartridge is a magnetic filter cartridge, and a filter membrane for removing suspended matters and dissolved impurities is arranged on the inner surface of the outer filter cartridge; two ends of the outer filter cylinder are respectively provided with a ring seat, the inner filter cylinder is sleeved in the outer filter cylinder, one end of the inner filter cylinder is provided with an end cover, the end cover is detachably assembled with the ring seat at one end of the outer filter cylinder in a sealing way, the other end of the inner filter cylinder is provided with a water outlet communicated with the inner part of the inner filter cylinder, and the inner filter cylinder is provided with a water inlet communicated with the inner part of the inner filter cylinder. And the water outlet penetrates through the ring seat at the other end of the outer filter cylinder and is assembled with the ring seat in a sealing manner. The water purifier has the advantages that the structural design is simple and reasonable, and small-particle-size dissolved impurities and magnetic metals in water can be effectively removed.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field, especially relate to a water purification multi -functional filter element. BACKGROUND

[0002] The condensed water of thermal power generation refers to the water condensed after the work of steam turbine in thermal power plant. The feed water of boiler in thermal power plant is composed of the condensed water of steam turbine and the make-up water of boiler. The condensed water is the main component of the feed water of boiler, and its amount accounts for more than 90% of the total amount of the feed water of boiler. Therefore, the poor quality of condensed water can cause the corrosion, scaling and blockage of thermal system, which can affect the heat transfer efficiency of thermal system, and even cause the boiler tube explosion and other major accidents. The condensed water contains a large amount of suspended solids, dissolved impurities and magnetic particles (mainly iron), and the condensed water carrying these particles into the boiler can cause scaling and under-deposit corrosion, and deposit at the descending elbow of boiler tube, thereby reducing the heat transfer efficiency of pipeline. When the iron content of condensed water exceeds the standard, the boiler thermal efficiency and steam turbine efficiency can be reduced, and the coal consumption can be doubled. Therefore, controlling the iron content is an important way to improve the reliability of boiler.

[0003] At present, the treatment of condensed water mainly uses the filtering means of filter element. The conventional filter element can only filter the impurities and suspended solids with particle size of 5 microns and above, and cannot effectively treat the magnetic particles in the condensed water. Therefore, the iron content in the condensed water can be high.

[0004] Therefore, it is necessary to develop a water purification multi-functional filter element to overcome the above technical problems. CONTENT OF UTILITY MODEL

[0005] The utility model solves the technical problem to provide a water purification multi-functional filter element, which effectively overcomes the defects of prior art.

[0006] The technical scheme for solving the above technical problem of the utility model is as follows:

[0007] A water purification multi-functional filter element, comprising an outer filter cylinder and an inner filter cylinder, the outer filter cylinder is a magnetic filter cylinder, and the inner surface of the outer filter cylinder is provided with a filter membrane for removing suspended solids and dissolved impurities; the two ends of the outer filter cylinder are respectively provided with ring seats, the inner filter cylinder is sleeved in the outer filter cylinder, one end of the inner filter cylinder is provided with an end cover, the end cover is detachably and sealingly assembled with the ring seat at one end of the outer filter cylinder, and the other end of the inner filter cylinder is provided with a water outlet communicating with the inside of the inner filter cylinder, the water outlet penetrates the ring seat at the other end of the outer filter cylinder and is sealingly assembled with each other.

[0008] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0009] Further, the outer filter cylinder is a cylindrical shape and is provided with first filter holes on the surface, and the inner filter cylinder is a cylindrical shape and is provided with second filter holes on the surface, wherein the size of the second filter holes is smaller than that of the first filter holes.

[0010] Further, the outer filter cylinder is a cylindrical shape and is provided with first filter holes on the surface, and the inner filter cylinder is a cylindrical shape and is provided with second filter holes on the surface, wherein the size of the second filter holes is smaller than that of the first filter holes.

[0011] Further, the outer periphery of the end cover is provided with external threads, and the inner surface of the ring seat at one end of the outer filter cylinder is provided with internal threads, and the end cover is screwed into the ring seat.

[0012] Further, the outer side of the end cover is provided with a handle.

[0013] Further, the outer periphery of the end cover is provided with external threads, and the inner surface of the ring seat at one end of the outer filter cylinder is provided with internal threads, and the end cover is screwed into the ring seat.

[0014] Further, the water outlet comprises a shell seat and a water outlet pipe penetratingly arranged at the center of the shell seat, and the end surface of the shell seat is provided with an annular sealing gasket, and the shell seat is in sealing contact with the inner surface of the ring seat at the other end of the outer filter cylinder through the sealing gasket.

[0015] Further, the inner filter cylinder comprises a cylindrical magnetic framework capable of adsorbing magnetic particles and a filter membrane wrapped on the outer surface of the magnetic framework.

[0016] Further, the filter membrane is a glass fiber filter membrane with a pore size of 1-5 μm.

[0017] Further, filter material is filled between the outer filter cylinder and the inner filter cylinder.

[0018] The beneficial effects of the present application are: simple and reasonable structure design, which can effectively remove small particle size dissolved impurities and magnetic metals in water. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the water purification multi-functional filter core is shown in the cross-sectional view.

[0020] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0021] 1, outer filter cylinder; 2, inner filter cylinder; 11, ring seat; 21, end cover; 22, water outlet; 23, handle; 221, shell seat; 222, water outlet pipe; 223, sealing gasket. DETAILED DESCRIPTION

[0022] The principles and features of the present application will be described below in conjunction with the drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0023] EMBODIMENT

[0024] As shown in Figure 1 The water purification multi-functional filter core of the embodiment comprises an outer filter cylinder 1 and an inner filter cylinder 2. The outer filter cylinder 1 is a magnetic filter cylinder capable of adsorbing magnetic particles. The outer surface of the inner filter cylinder 2 is provided with a filter membrane for removing suspended matter and dissolved impurities. The two ends of the outer filter cylinder 1 are respectively provided with ring seats 11. The inner filter cylinder 2 is sleeved in the outer filter cylinder 1. One end of the inner filter cylinder 2 is provided with an end cover 21. The end cover 21 is detachably and sealingly assembled with the ring seat 11 at one end of the outer filter cylinder 1. The other end of the inner filter cylinder 2 is provided with a water outlet 22 communicating with the inside of the inner filter cylinder 2. The water outlet 22 penetrates the ring seat 11 at the other end of the outer filter cylinder 1 and is sealingly assembled therewith.

[0025] In the embodiment, the outer filter cylinder 1 is designed as a magnetic filter cylinder, which can adsorb magnetic particles (such as iron) in water. During use, taking condensed water as an example, the condensed water enters the filter, passes through the outer filter cylinder 1 and the inner filter cylinder 2, and then comes out from the water outlet 22 at the other end of the inner filter cylinder 2. During this process, the outer filter cylinder 1 adsorbs most of the magnetic particles in the water, and then the filter membrane filters out the suspended matter and dissolved impurities in the condensed water. Compared with the conventional filter core, the iron content in the water can be effectively reduced, and the problem that the excessive iron content in the condensed water reduces the thermal efficiency of the boiler and the efficiency of the steam turbine is solved.

[0026] In the embodiment, the outer filter cylinder 1 is a cylinder and the surface is covered with filter holes. The inner filter cylinder 2 is a cylinder and is coaxially distributed with the outer filter cylinder 1. The outer filter cylinder 1 is made of rare earth permanent magnetic material and can adsorb magnetic particles in water for a long time.

[0027] In the embodiment, the outer filter cylinder 1 can also be a circular pleated filter cylinder woven by magnetic wires (specifically, magnetic wire lines made of rare earth permanent magnetic material). The surface of the pleated filter cylinder is covered with mesh holes. The inner filter cylinder 2 is a cylinder.

[0028] As a preferred embodiment, the outer periphery of the end cover 21 is provided with external threads. The inner surface of the ring seat 11 at one end of the outer filter cylinder 1 is provided with internal threads. The end cover 21 is screwed in the ring seat 11.

[0029] In the embodiment, the end cover 21 is assembled by screwing with the ring seat 11 at one end of the outer filter cylinder 1. When screwed tightly, the end face of the water outlet 22 at the other end can be tightly attached to the inner surface of the ring seat 11 at the other end of the outer filter cylinder 1, forming a good seal.

[0030] In the embodiment, the outer side of the end cover 21 is provided with a handle 23. By holding the handle 23 and applying external force, a torsional force can be applied to the end cover 21, so that the end cover 21 and the ring seat 11 complete the disassembly and assembly actions.

[0031] In the embodiment, a sealing ring is nested on the outer surface of the end cover 21 away from the inner filter cartridge 2. After the end cover 21 is screwed, the sealing ring is in sealing and extrusion contact with the inner surface of the ring seat 11 away from the outer filter cartridge 1, thereby achieving better sealing of the two.

[0032] In the embodiment, the outer edge of one end of the end cover 21 is provided with a cover plate abutting the end of the ring seat 11.

[0033] As a preferred embodiment, the water outlet 22 comprises a shell seat 221 and a water outlet pipe 222 penetratingly arranged at the center of the shell seat 221. The end surface of the shell seat 221 is provided with an annular sealing gasket 223. The shell seat 221 is in sealing contact with the inner surface of the ring seat 11 at the other end of the outer filter cartridge 1 through the sealing gasket 223.

[0034] In the above embodiment, the shell seat 221 is a circular ring member. The inner surface of the ring seat 11 at the other end of the outer filter cartridge 1 is provided with an annular groove. The outer diameter of the shell seat 221 is substantially the same as the inner diameter of the annular groove, so that the shell seat 221 can be embedded in the annular groove. The end of the shell seat 221 is provided with an annular sealing gasket 223, which is clamped between the bottom wall of the annular groove and the end surface of the shell seat 221. With the screwing of the end cover 21, the sealing gasket 223 is pressed and tightly clamped between the shell seat 221 and the bottom wall of the annular groove, thereby achieving better sealing of the other end of the outer filter cartridge 1.

[0035] As a preferred embodiment, the inner filter cartridge 2 comprises a cylindrical magnetic skeleton capable of adsorbing magnetic particles and a filter membrane covering the outer surface of the magnetic skeleton.

[0036] In the above embodiment, the magnetic skeleton of the inner filter cartridge 2 can adsorb magnetic particles (mainly iron) in condensed water. That is, after the condensed water is subjected to the first-stage adsorption treatment by the outer filter cartridge 1, the suspended matter and dissolved impurities are filtered out by the filter membrane on the surface of the inner filter cartridge 2. Then, the magnetic particles in the water are adsorbed again by the magnetic skeleton of the inner filter cartridge 2. Through the two-stage magnetic adsorption and filter membrane filtration, the dissolved impurities, suspended matter and magnetic particles in the condensed water can be effectively removed, and the filtration effect is good.

[0037] In the embodiment, the magnetic skeleton of the inner filter cartridge 2 can also be made of a rare earth permanent magnet material, and the surface is provided with uniformly distributed hollow mesh holes, and then the filter membrane is attached.

[0038] In the embodiment, the filter membrane is a glass fiber filter membrane with a pore size of 1-5 μm. It can effectively remove particles below 5 μm in the condensed water, solving the problem that conventional filter cartridges cannot effectively filter small particles.

[0039] In the embodiment, the filter material is filled between the outer filter cartridge 1 and the inner filter cartridge 2. The filter material can be a material capable of adsorbing foreign matter, color, etc., and the filtering effect is further improved.

[0040] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0041] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0042] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is lower than that of the second feature.

[0044] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A water purification multi-functional filter cartridge, characterized by: The filter includes an outer filter cylinder (1) and an inner filter cylinder (2), the outer filter cylinder (1) is a magnetic filter capable of adsorbing magnetic particles, and the outer surface of the inner filter cylinder (2) is provided with a filter membrane for removing suspended and dissolved impurities; the two ends of the outer filter cylinder (1) are respectively provided with ring seats (11), the inner filter cylinder (2) is sleeved in the outer filter cylinder (1), one end of the inner filter cylinder (2) is provided with an end cover (21), the end cover (21) is detachably and sealingly assembled with the ring seat (11) at one end of the outer filter cylinder (1), the other end of the inner filter cylinder (2) is provided with a water outlet (22) communicating with the inside of the inner filter cylinder (2), the water outlet (22) penetrates the ring seat (11) at the other end of the outer filter cylinder (1) and is sealingly assembled with each other.

2. A water purification multi-functional filter cartridge according to claim 1, characterized in that: The outer filter cylinder (1) is a cylinder, and the surface is covered with first filter holes.

3. A water purification multi-functional filter cartridge according to claim 1, characterized in that: The outer filter cylinder (1) is a circular pleated filter cylinder woven by magnetic wires, and the surface of the pleated filter cylinder is covered with mesh holes.

4. The water purification multi-functional filter cartridge according to claim 1, wherein: The outer periphery of the end cover (21) is provided with external threads, and the inner surface of the ring seat (11) at one end of the outer filter cylinder (1) is provided with internal threads, and the end cover (21) is screwed in the ring seat (11).

5. A water purification multi-functional filter cartridge according to claim 4, characterized in that: The outer side of the end cover (21) is provided with a handle (23).

6. A water purification multi-functional filter cartridge according to claim 4, characterized in that: One end of the end cover (21) is provided with a cover plate abutting against the end portion of the ring seat (11).

7. A water purification multi-functional filter cartridge according to claim 1, characterized in that: The water outlet (22) includes a shell seat (221) and a water outlet pipe (222) penetratingly arranged at the center of the shell seat (221), the end surface of the shell seat (221) is provided with an annular sealing gasket (223), and the shell seat (221) is sealingly contacted with the inner surface of the ring seat (11) at the other end of the outer filter cylinder (1) through the sealing gasket (223).

8. A water purification multi-functional filter cartridge according to any one of claims 1 to 7, characterized in that: The inner filter cylinder (2) includes a cylindrical magnetic framework capable of adsorbing magnetic particles and a filter membrane wrapped on the outer surface of the magnetic framework.

9. A water purification multi-functional filter cartridge according to claim 8, characterized in that: The filter membrane is a glass fiber filter membrane with a pore size of 1-5 μm.

10. A water purification multi-functional filter cartridge according to any one of claims 1 to 7, characterized in that: The space between the outer filter cylinder (1) and the inner filter cylinder (2) is filled with filter material.

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