A magnetic filter element and its application in a condensate water treatment system

Abstract

The present invention relates to a magnetic filter element, which comprises a filter element cavity, an inner magnet, an outer magnet, a filler, a water inlet and a water outlet; the water outlet is arranged at the upper part of the magnetic filter element; the water inlet is arranged at the lower part of the magnetic filter element; the outer magnet is arranged around the outer edges of the water outlet water distribution device and the water inlet water distribution device; the inner magnet is coaxially arranged with the water outlet water distribution device and the water inlet water distribution device and has a certain interval from the outer magnet; all the intervals form the filter element cavity; the filter element cavity includes a spatial magnetic field formed by the inner magnet, the outer magnet and the filler, and the filtering function is provided through the spatial magnetic field; the filler is filled in the filter element cavity. The application of the magnetic filter element in a condensate water treatment system is also disclosed, including: condensate water enters from the water inlet, flows through the filter element cavity to magnetize the condensate water and the medium in the water, slow down the corrosion and scaling of the equipment and pipelines in the thermal system; adsorb and remove the ferromagnetic suspended solids in the condensate water; and flow out from the water outlet after intercepting and removing the weakly magnetic suspended solids through the filler.

Description

Technical Field

[0001] The invention relates to the technical field of condensate water treatment, and in particular to a magnetic filter element and application thereof in a condensate water treatment system. Background Art

[0002] The corrosion of equipment and pipelines in thermal systems has always been an important problem that has plagued industrial development. Water and steam corrosion are the main causes. The treatment effect of condensate directly affects the safety performance and operating efficiency of the thermal system. Existing condensate treatment filter elements mostly use winding, filter cloth, ceramic sintering and other filter media filtration forms, with low iron removal efficiency, short replacement cycle and high operating costs. Suspended matter remaining in the water will accumulate in the equipment and pipelines of the thermal system, which not only affects the safety performance and operating efficiency of the system, but also induces scaling on the metal surface. In short, the filter elements of the condensate treatment system in the prior art have the following defects:

[0003] 1. Low processing efficiency, high operating costs, environmental pollution and other problems;

[0004] 2. Low treatment efficiency, poor backwashing effect, short replacement cycle and high operating cost;

[0005] 3. The filter element has poor iron removal effect, resulting in excessive burden on the mixed bed resin, frequent regeneration, and resin iron poisoning;

[0006] 4. The filter element has poor iron removal effect, and the residual corrosion products can easily enter the thermal system, affecting the working efficiency of the thermal system and even causing safety accidents.

[0007] Therefore, there is a need for a new design of a filtering device in a condensate treatment process. Summary of the invention

[0008] The purpose of the present invention is to provide a magnetic filter element and its application in a condensate water treatment system. The magnetic field of the magnetic filter element can magnetize the condensate water and the medium in the water, thereby slowing down the corrosion and scaling of the thermal system; the magnetic field of the magnetic filter element can efficiently adsorb and remove ferromagnetic suspended matter in the condensate water, thereby improving the iron removal efficiency; the filler in the magnetic filter element can intercept and remove weakly magnetic suspended matter; the magnetic filter element is easier to clean and can be used for a long time.

[0009] In one aspect, the present invention provides a magnetic filter element, comprising a filter element cavity (3), an inner magnet (4), an outer magnet (5), a filler (6), a water inlet (1) and a water outlet (8); wherein:

[0010] The water outlet (8) is arranged at the upper part of the magnetic filter element; the water inlet (1) is arranged at the lower part of the magnetic filter element;

[0011] The external magnet (5) is arranged around the outer edges of the water outlet (8) and the water inlet (1);

[0012] The inner magnet (4) is coaxially arranged with the water outlet (8) and the water inlet (1) and has a certain interval from the outer magnet (5);

[0013] All the intervals form a filter element cavity (3); a space magnetic field composed of an inner magnet, an outer magnet and a filler is included in the filter element cavity (3), and the filtering function is provided by the space magnetic field;

[0014] The filler (6) is filled in the filter element cavity (3).

[0015] Preferably, the magnetic filter element further includes a water outlet water distribution device (7), the water outlet (8) is arranged above the water outlet water distribution device (7), and the water outlet (8) and the water outlet water distribution device (7) are arranged at the upper part of the magnetic filter element; the water outlet water distribution device (7) includes a water outlet water distribution pipe and a water outlet water distribution plate, wherein the water outlet water distribution pipe adopts a main pipe - branch - type annular water distribution pipe with the same diameter as the water outlet (8), and the water outlet water distribution plate is a porous - plate - type water outlet water distribution plate;

[0016] The outer magnet (5) is arranged around the outer edge of the water outlet water distribution device (7);

[0017] The inner magnet (4) is coaxially arranged with the water outlet water distribution device (7) and has a certain interval from the outer magnet (5).

[0018] Preferably, the magnetic filter element further includes a water inlet water distribution device (2), the water inlet (1) is arranged below the water inlet water distribution device (2), and the water inlet (1) and the water inlet water distribution device (2) are arranged at the lower part of the magnetic filter element; the water inlet water distribution device (2) includes a water inlet water distribution pipe and a water inlet water distribution plate, wherein the water inlet water distribution pipe adopts a main pipe - branch - type annular water distribution pipe with the same diameter as the water inlet (1), and the water inlet water distribution plate is a porous - plate - type water inlet water distribution plate;

[0019] The outer magnet (5) is arranged around the outer edge of the water inlet water distribution device (2);

[0020] The inner magnet (4) is coaxially arranged with the water inlet water distribution device (2) and has a certain interval from the outer magnet (5).

[0021] Preferably, the magnetic field intensity range provided by the inner magnet (4) and the outer magnet (5) is 600 Gs - 8000 Gs.

[0022] Preferably, the inner magnet (4) is a neodymium - iron - boron permanent magnet column.

[0023] Preferably, the inner magnet (4) is a neodymium iron boron permanent magnet column with dimensions of φ30×t30, formed by a sintering process. The surface of the inner magnet (4) is chrome-plated or nickel-plated and magnetized along the radial direction.

[0024] Preferably, the inner magnet (4) is a neodymium iron boron permanent magnet column with dimensions of φ30×t21, formed by a sintering process. The surface of the inner magnet (4) is chrome-plated or nickel-plated and magnetized along the axial direction.

[0025] Preferably, the filler is DT4C electromagnetic pure iron particles.

[0026] The second aspect of the present invention lies in providing an application of a magnetic filter element in a condensate water treatment system, including:

[0027] The condensate water enters from the water inlet (1), flows through the filter element cavity (3), and thus magnetizes the condensate water and the medium in the water through the inner magnet (4) and the outer magnet (5), effectively slowing down the corrosion and scaling of equipment and pipelines in the thermal system; efficiently adsorbing and removing ferromagnetic suspended solids in the condensate water through the inner magnet (4) and the outer magnet (5); and flowing out from the water outlet (8) after intercepting and removing weakly magnetic suspended solids through the filler (6).

[0028] Preferably, the magnetization includes: after the aqueous solution formed by the condensate water and the medium in the water flows through a magnetic field with a certain intensity at a certain flow rate, under the action of the magnetic field, the structures and properties of water molecules and the impurities carried by the aqueous solution change, causing the water molecules and the impurities carried in the aqueous solution to generate magnetism or a magnetization effect.

[0029] The magnetic filter element of the present invention and its application in a condensate water treatment system have the following beneficial effects:

[0030] By using the action of the magnetic field and the filler on the condensate water and the medium in the water, suspended solids in the condensate water are efficiently removed, and the corrosion and scaling of equipment and pipelines in the thermal system are effectively slowed down; the magnetic filter element is easy to clean and can be used for a long time, and the materials used in the magnetic filter element can be recycled and reused. Description of the Drawings

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a cross-sectional view of the magnetic filter element used in the condensate water treatment system provided by the embodiment of the present invention;

[0033] Reference numerals:

[0034] 1. Water inlet; 2. Water inlet and distribution device; 3. Filter element cavity; 4. Inner magnet; 5. Outer magnet; 6. Filler; 7. Water outlet and distribution device; 8. Water outlet. Detailed implementation manners

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Refer to Figure 1 , this embodiment provides a magnetic filter element, including a filter element cavity 3, an inner magnet 4, an outer magnet 5, a filler 6, a water inlet 1, and a water outlet 8; wherein,

[0039] The water outlet 8 is arranged at the upper part of the magnetic filter element; the water inlet 1 is arranged at the lower part of the magnetic filter element;

[0040] The outer magnet 5 is arranged around the outer edges of the water outlet 8 and the water inlet 1;

[0041] The inner magnet 4 is coaxially arranged with the water outlet 8 and the water inlet 1 and has a certain interval from the outer magnet 5;

[0042] All the intervals form the filter element cavity 3; inside the filter element cavity 3, there is a space magnetic field formed by an inner magnet, an outer magnet and a filler, and the filtering function is provided through the space magnetic field;

[0043] The filler 6 is filled inside the filter element cavity 3.

[0044] As a preferred embodiment, the magnetic filter element further includes an effluent water distribution device 7, the water outlet 8 is arranged above the effluent water distribution device 7, and the water outlet 8 and the effluent water distribution device 7 are arranged at the upper part of the magnetic filter element. The effluent water distribution device 7 includes an effluent water distribution pipe and an effluent water distribution plate. Among them, the effluent water distribution pipe adopts a main pipe - branch - type annular effluent water distribution pipe with the same diameter as the water outlet 8, and the effluent water distribution plate is a porous - plate - type effluent water distribution plate; the outer magnet 5 is arranged around the outer edge of the effluent water distribution device 7; the inner magnet 4 is coaxially arranged with the effluent water distribution device 7 and has a certain interval from the outer magnet 5.

[0045] As a preferred embodiment, the magnetic filter element further includes an influent water distribution device 2, the water inlet 1 is arranged below the influent water distribution device 2, and the water inlet 1 and the influent water distribution device 2 are arranged at the lower part of the magnetic filter element. The influent water distribution device 2 includes an influent water distribution pipe and an influent water distribution plate. Among them, the influent water distribution pipe adopts a main pipe - branch - type annular influent water distribution pipe with the same diameter as the water inlet 1, and the influent water distribution plate is a porous - plate - type influent water distribution plate. The outer magnet 5 is arranged around the outer edge of the influent water distribution device 2; the inner magnet 4 is coaxially arranged with the influent water distribution device 2 and has a certain interval from the outer magnet 5.

[0046] As a preferred embodiment, the magnetic field intensity range provided by the inner magnet 4 and the outer magnet 5 is 600 Gs (Gauss) to 8000 Gs (Gauss).

[0047] As a preferred embodiment, the inner magnet 4 is a neodymium - iron - boron permanent magnet column.

[0048] As a preferred embodiment, the inner magnet 4 is a neodymium - iron - boron permanent magnet column with dimensions of φ30×t30, formed by a sintering process. The surface of the inner magnet 4 is chromium - plated or nickel - plated and magnetized along the radial direction.

[0049] As a preferred embodiment, the inner magnet 4 is a neodymium - iron - boron permanent magnet column with dimensions of φ30×t21, formed by a sintering process. The surface of the inner magnet 4 is chromium - plated or nickel - plated and magnetized along the axial direction.

[0050] As a preferred embodiment, the filler is DT4C electromagnetic pure iron particles. Of course, those skilled in the art should know that other types of fillers can also be filled, as long as the technical effect of intercepting and removing weakly magnetic suspended substances can be achieved, they are all within the protection scope of the present invention. In addition, the function of the filler (6) is not limited to magnetic conduction and filtration, and can also improve the backwashing efficiency, etc. Of course, according to the actual requirements and actual conditions of the condensate water treatment system, the filler can also be selected not to be set.

[0051] The second aspect of the present invention is to provide an application of a magnetic filter element in a condensate water treatment system, including:

[0052] The condensate water enters from the water inlet 1, flows through the filter element cavity 3, and thus magnetizes the condensate water and the medium in the water through the inner magnet 4 and the outer magnet 5, effectively slowing down the corrosion and scaling of the equipment and pipelines in the thermal system; efficiently adsorbs and removes ferromagnetic suspended solids in the condensate water through the inner magnet 4 and the outer magnet 5; and intercepts and removes weakly magnetic suspended solids through the filler 6 and then flows out from the water outlet 8.

[0053] As a preferred embodiment, magnetization includes: after an aqueous solution formed by the condensate water and the medium in the water flows through a magnetic field with a certain intensity at a certain flow rate, under the action of the magnetic field, the structures and properties of water molecules and impurities carried by the aqueous solution change, causing the water molecules and the impurities carried in the aqueous solution to generate a certain degree of magnetism or magnetization effect.

[0054] Specifically, a spatial magnetic field and a filtering function are formed in the filter element cavity by the inner magnet, the outer magnet, and the filler. The condensate water enters from the water inlet, flows through the spatial magnetic field and the filler in the cavity, and flows out from the water outlet.

[0055] The working process of this embodiment is as follows: when the condensate water flows into the filter element cavity from the water inlet, flows through the magnetic field and the filler, the magnetic field magnetizes the condensate water and the medium in the water, slowing down the corrosion and scaling of the condensate water to the thermal system, and the magnetic field and the filler adsorb and filter the suspended solids in the condensate water.

[0056] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiments can be implemented by software, or can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solutions of the above embodiments can be embodied in the form of a software product, and this software product can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A magnetic filter element, characterized in that: It comprises a filter element cavity (3), an inner magnet (4), an outer magnet (5), a filler (6), a water inlet (1) and a water outlet (8); wherein: The water outlet (8) is arranged at the upper part of the magnetic filter element; the water inlet (1) is arranged at the lower part of the magnetic filter element; The external magnet (5) is arranged around the outer edges of the water outlet (8) and the water inlet (1); The inner magnet (4) is coaxially arranged with the water outlet (8) and the water inlet (1) and has a certain distance from the outer magnet (5); All of the intervals constitute a filter element cavity (3); the filter element cavity (3) includes a spatial magnetic field formed by an inner magnet, an outer magnet and a filler, and provides a filtering function through the spatial magnetic field; Filling the filler (6) in the filter element cavity (3); Among them, after the aqueous solution formed by condensed water and the medium in the water flows through a magnetic field of a certain strength at a certain flow rate, under the action of the magnetic field, the structure and properties of the water molecules and the impurities carried by the aqueous solution change, so that the water molecules and the impurities carried by the aqueous solution produce a magnetic or magnetized effect; The magnetic filter element further comprises a water outlet distribution device (7), the water outlet (8) is arranged above the water outlet distribution device (7), and the water outlet (8) and the water outlet distribution device (7) are arranged on the upper part of the magnetic filter element; The water outlet distribution device (7) comprises a water outlet distribution pipe and a water outlet distribution plate, wherein the water outlet distribution pipe is a main pipe branch pipe type annular water outlet distribution pipe with the same diameter as the water outlet (8), and the water outlet distribution plate is a porous plate type water outlet distribution plate; The magnetic filter element further comprises a water inlet and water distribution device (2), the water inlet (1) is arranged below the water inlet and water distribution device (2), and the water inlet (1) and the water inlet and water distribution device (2) are arranged at the bottom of the magnetic filter element; The water inlet distribution device (2) comprises a water inlet distribution pipe and a water inlet distribution plate, wherein the water inlet distribution pipe is a main pipe branch pipe type annular water inlet distribution pipe with the same diameter as the water inlet (1), and the water inlet distribution plate is a porous plate type water inlet distribution plate; The filler is DT4C electromagnetic pure iron particles.

2. A magnetic filter element according to claim 1, characterized in that: The external magnet (5) is arranged around the outer edge of the water outlet and water distribution device (7); The inner magnet (4) is coaxially arranged with the water outlet and water distribution device (7) and has a certain distance between it and the outer magnet (5).

3. A magnetic filter element according to claim 2, characterized in that: The external magnet (5) is arranged around the outer edge of the water inlet and water distribution device (2); The inner magnet (4) is coaxially arranged with the water inlet and water distribution device (2) and has a certain distance between it and the outer magnet (5).

4. A magnetic filter element according to claim 3, characterized in that: The magnetic field strength provided by the inner magnet (4) and the outer magnet (5) ranges from 600 Gs to 8000 Gs.

5. A magnetic filter element according to claim 1, characterized in that: The inner magnet (4) is a neodymium iron boron permanent magnet column.

6. A magnetic filter element according to claim 5, characterized in that: The inner magnet (4) is a NdFeB permanent magnet column with a size of φ30×t30, formed by a sintering process; the surface of the inner magnet (4) is chrome-plated or nickel-plated and magnetized in the radial direction.

7. A magnetic filter element according to claim 5, characterized in that: The inner magnet (4) is a NdFeB permanent magnet column with a size of φ30×t21, formed by a sintering process; the surface of the inner magnet (4) is chrome-plated or nickel-plated and magnetized along the axial direction.

8. Use of the magnetic filter element according to any one of claims 1 to 7 in a condensate water treatment system, characterized in that: include: Condensate enters from the water inlet (1), flows through the filter element cavity (3), and magnetizes the condensate and the medium in the water through the inner magnet (4) and the outer magnet (5), thereby effectively reducing the corrosion and scaling of equipment and pipelines in the thermal system; the inner magnet (4) and the outer magnet (5) efficiently adsorb and remove ferromagnetic suspended matter in the condensate; and the filler (6) intercepts and removes weakly magnetic suspended matter before the condensate flows out from the water outlet (8).

9. The use of the magnetic filter element according to claim 8 in a condensate water treatment system, characterized in that: The magnetization includes: after the aqueous solution formed by the condensed water and the medium in the water flows through a magnetic field of a certain strength at a certain flow rate, under the action of the magnetic field, the structure and properties of water molecules and impurities carried by the aqueous solution change, so that the water molecules and the impurities carried by the aqueous solution produce magnetic or magnetized effects.

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