Water quality purification system

Abstract

The utility model discloses a water quality purification system. Comprising a first pipeline which is connected in series in a water vapor pipeline; the first pipeline further comprises a water quality purification device, and the water quality purification device comprises a shell, at least one first sleeve and a magnetic assembly; the top of the shell comprises at least one opening, the first sleeves are inserted into the openings in a one-to-one correspondence mode, each first sleeve comprises an open end and a closed end which are oppositely arranged, the open ends are close to the openings, and the closed ends extend towards the bottom of the shell; the side wall of the shell comprises a medium inlet and a medium outlet, the medium inlet is connected with the upstream of the first pipeline, and the medium outlet is connected with the downstream of the first pipeline; the magnetic assembly comprises at least one magnetic rod, the water quality purification system has a first working state, and in the first working state, the magnetic rod is correspondingly placed in the first sleeve. Through the scheme, the influence of impurities on the magnetic rod can be reduced, the impurity adsorption effect during long-time operation of the system is ensured, and the medium purification degree is improved.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of water vapor pipeline medium purification, and particularly to a water quality purification system. Background Art

[0002] The water vapor pipelines and their related thermal equipment in power plants are made of iron-based materials. During operation, a large amount of iron corrosion products, that is, harmful impurities, will be generated. These impurities deposit on the inner wall of the pipeline to form scale, which not only affects the heat transfer of the pipe wall, but also causes under-scale corrosion, affecting the operation safety of the steam turbine generator set. At the same time, the flow of particulate impurities in the water vapor pipeline will cause erosion damage to the pipe wall valves, and these particulate impurities directly affect the operation safety of the boiler. Summary of the Utility Model

[0003] In view of this, the present utility model provides a water quality purification system, which can ensure the adsorption effect of impurities during long-term operation of the system and improve the degree of medium purification.

[0004] The water quality purification system provided by the embodiments of the present utility model is applied to the water vapor pipeline of a power plant. The water quality purification system includes a first pipeline, and the first pipeline is connected in series in the water vapor pipeline; a water quality purification device is further included in the first pipeline, and the water quality purification device includes a housing, at least one first sleeve and a magnetic assembly;

[0005] The top of the housing includes at least one opening, and at least the first sleeves are respectively inserted into the openings. The first sleeve includes an open end and a closed end which are oppositely arranged. The open end is close to the opening, and the closed end extends towards the bottom of the housing;

[0006] The space formed between the top of the housing, the bottom of the housing, the side wall of the housing and the pipe wall of the first sleeve forms a medium flow chamber; the side wall of the housing includes a medium inlet and a medium outlet. The medium inlet is connected to the upstream of the first pipeline, and the medium outlet is connected to the downstream of the first pipeline;

[0007] The magnetic assembly includes at least one magnetic rod. The water quality purification system includes a first working state, and in the first working state, the magnetic rods are correspondingly placed in the first sleeves.

[0008] Optionally, the water quality purification device further includes a lifting assembly, and the lifting assembly is fixed to the magnetic assembly;

[0009] In the first working state, the lifting component is in the first position. When the lifting component is in the first position, the magnetic rod is correspondingly placed in the first sleeve. The water purification system further includes a second working state. In the second working state, the lifting component moves upward to the second position. When the lifting component is in the second position, the magnetic rod moves upward out of the first sleeve.

[0010] Optionally, the bottom of the housing further includes a sewage outlet and a sewage outlet switch. The sewage outlet communicates the medium flow chamber with the external environment.

[0011] The water purification system further includes a controller. The controller includes a lifting signal output terminal and a sewage signal output terminal. The lifting signal output terminal is electrically connected to the lifting component, and the sewage signal output terminal is electrically connected to the sewage outlet switch.

[0012] In the first working state, the controller controls the lifting component to maintain in the first position and controls the sewage outlet switch to be closed. In the second working state, the controller controls the lifting component to move to the second position and controls the sewage outlet switch to be opened.

[0013] Optionally, the water purification system further includes a second pipeline, which is connected in parallel with the first pipeline. A first valve is provided in the first pipeline, and a second valve is provided in the second pipeline.

[0014] The controller further includes a first valve control signal output terminal and a second valve control signal output terminal. The first valve control signal output terminal is electrically connected to the first valve, and the second valve control signal output terminal is electrically connected to the second valve.

[0015] In the first working state, the controller controls the first valve to be opened and controls the second valve to be closed. In the second working state, the controller controls the first valve to be closed and controls the second valve to be opened.

[0016] Optionally, the water purification device further includes a magnetic detection component, which is fixed to the housing.

[0017] The controller includes a magnetic force signal receiving terminal, which is electrically connected to the magnetic detection component. The magnetic detection component detects the magnetic field strength in the medium flow chamber and sends the magnetic field strength information to the controller. The controller adjusts the working state of the water purification system according to the magnetic field strength information.

[0018] Optionally, the number of the first sleeves and the magnetic rods is multiple, and the multiple first sleeves are arranged in an array on the top of the housing; the arrangement of the magnetic rods is the same as that of the first sleeves, and in the first working state, the magnetic rods are respectively placed in the first sleeves one by one.

[0019] Optionally, along the direction from the side wall of the housing to the central axis of the housing, there are two adjacent first sleeves arranged in a staggered manner.

[0020] Optionally, the magnetic rod includes a second sleeve, a plurality of permanent magnets and a plurality of spacers, and the permanent magnets and the spacers are alternately stacked in sequence along the height direction of the second sleeve; the same-sex magnetic poles of any two adjacent permanent magnets are close to each other.

[0021] Optionally, the water purification device further includes at least one flow equalizing orifice plate, the flow equalizing orifice plate is located in the medium flow cavity, and along the height direction of the housing, the flow equalizing orifice plate surrounds the first sleeve;

[0022] The flow equalizing orifice plate includes a plurality of openings.

[0023] Optionally, along the direction from the side wall of the housing to the central axis of the housing, the diameter of the openings on the outer flow equalizing orifice plate is larger than the diameter of the openings on the inner flow equalizing orifice plate; or,

[0024] Along the medium flow direction, the diameter of the openings on each layer of the flow equalizing orifice plate gradually becomes smaller.

[0025] In the medium purification system provided by the embodiment of the present invention, by providing an opening at the top of the housing and inserting a first sleeve into the opening, the inner space of the first sleeve is close to the medium flow cavity and is spaced from the medium flow cavity. When the magnetic rod is located in the first sleeve, the side and bottom of the magnetic rod are close to the medium flow cavity and do not directly contact the medium flow cavity. Since the magnetic rod has magnetism, it can adsorb iron ion impurities in the medium in the medium flow cavity. Also, since the magnetic rod is spaced from the medium flow cavity, the iron ion impurities will be adsorbed on the outer wall of the first sleeve instead of directly on the magnetic rod, which will not affect the magnetism of the magnetic rod itself, and there is no need to clean the magnetic rod, reducing the influence of impurities on the magnetic rod, ensuring the adsorption effect of impurities during long-term operation of the system, improving the medium purification degree, thereby improving the heat exchange efficiency of the system and ensuring the operation safety of the steam-water system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a water purification system provided by an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of a water purification device provided by an embodiment of the present invention;

[0028] Figure 3 Schematic structural diagram of another water purification device provided by an embodiment of the present utility model;

[0029] Figure 4 Schematic structural diagram of yet another water purification device provided by an embodiment of the present utility model

[0030] Figure 5 Schematic circuit diagram of a water purification system provided by an embodiment of the present utility model;

[0031] Figure 6 Schematic circuit diagram of another water purification system provided by an embodiment of the present utility model;

[0032] Figure 7 Schematic structural diagram of a magnetic rod provided by an embodiment of the present utility model.

[0033] Reference numerals:

[0034] 1 - First pipeline; 2 - Water vapor pipeline; 3 - Water purification device; 4 - Outer shell; 41 - Top; 42 - Opening; 43 - Bottom; 44 - Side wall; 45 - Medium inlet; 46 - Medium outlet; 47 - Drain port; 48 - Drain port switch; 5 - First sleeve; 51 - Open end; 52 - Closed end; 6 - Magnetic assembly; 60 - Magnetic rod; 601 - Second sleeve; 602 - Permanent magnet; 603 - Spacer; 7 - Medium flow cavity; 8 - Lifting assembly; 9 - Controller; 91 - Lifting signal output terminal; 92 - Drain signal output terminal; 93 - First valve control signal output terminal; 94 - Second valve control signal output terminal; 95 - Magnetic force signal receiving terminal; 10 - Second pipeline; 11 - First valve; 111 - First sub - isolation valve; 112 - Second sub - isolation valve; 12 - Second valve; 13 - Magnetic detection assembly; 14 - Flow equalizing orifice plate; 15 - Support partition. Detailed implementation manners

[0035] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0036] The terms used in the embodiments of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present utility model are described from the angles shown in the drawings and should not be construed as limiting the embodiments of the present utility model. In addition, in the context, it should also be understood that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also be indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second", etc. are only used for descriptive purposes and do not indicate any order, quantity, or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In the related art, there are mainly two types of technologies for removing iron from the medium of the water-vapor system. The first type is to use high-molecular substances such as resins as filter materials for purification. Since the operating temperature of resin materials generally does not exceed 75°C, this type of chemical iron removal method can only remove iron and purify in media with lower temperatures, and it is not possible to establish an iron removal and purification device in media with an operating temperature above 100°C. The second type is the magnet purification technology, which can be used in high-temperature media. The magnet purification technology generally uses a permanent magnet bar to adsorb magnetic impurities such as iron. The permanent magnet bar is directly arranged in the thermal equipment in the water-vapor system. The inventor's research found that as the operation time increases, impurities will continuously adsorb on the surface of the permanent magnet bar. When the thickness of the impurities reaches a certain level, the permanent magnet bar no longer has the adsorption ability and can only be cleaned offline during the shutdown and maintenance period. In this way, the permanent magnet bar cannot effectively adsorb for a long time during operation, directly affecting the purification degree of the medium in the water-vapor system and unable to effectively protect the safe operation of downstream equipment.

[0038] Based on the above problems, the present utility model proposes a water quality purification system, which can be applied to the water-vapor pipeline of a power plant. The water quality purification system includes a first pipeline, and the first pipeline is connected in series in the water-vapor pipeline; the first pipeline also includes a water quality purification device, and the water quality purification device includes a housing, at least one first sleeve, and a magnetic assembly;

[0039] The top of the housing includes at least one opening, and at least the first sleeves are inserted into the openings in a one-to-one correspondence. The first sleeve includes an open end and a closed end arranged oppositely. The open end is close to the opening, and the closed end extends towards the bottom of the housing;

[0040] The space formed between the top of the housing, the bottom of the housing, the side wall of the housing, and the pipe wall of the first sleeve forms a medium flow chamber; the side wall of the housing includes a medium inlet and a medium outlet. The medium inlet is connected to the upstream of the first pipeline, and the medium outlet is connected to the downstream of the first pipeline;

[0041] The magnetic component includes at least one magnetic rod, and the water purification system includes a first working state. In the first working state, the magnetic rod is correspondingly placed in the first sleeve.

[0042] Through the above solution, when the magnetic rod is located in the first sleeve, both the side surface and the bottom surface of the magnetic rod are close to the medium flow cavity and do not directly contact the medium flow cavity. Since the magnetic rod has magnetism, it can adsorb iron ion impurities in the medium in the medium flow cavity. Also, because there is a gap between the magnetic rod and the medium flow cavity, the iron ion impurities will be adsorbed on the outer wall of the first sleeve instead of directly on the magnetic rod, which will not affect the magnetism of the magnetic rod itself, and there is no need to clean the magnetic rod, reducing the influence of impurities on the magnetic rod, ensuring the adsorption effect of impurities during long-term operation of the system, improving the degree of medium purification, thereby improving the heat exchange efficiency of the system and ensuring the operation safety of the steam-water system.

[0043] The above is the core idea of the present invention. Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0044] The water purification system provided by the embodiment of the present invention can be applied to the steam-water pipeline of a power plant. Figure 1 It is a schematic structural diagram of a water purification system provided by an embodiment of the present invention. Figure 2 It is a schematic structural diagram of a water purification device provided by an embodiment of the present invention. Figure 3 It is a schematic structural diagram of another water purification device provided by an embodiment of the present invention. Among them, Figure 1 It is a schematic diagram of the overall connection structure of the water purification system. Figure 2 It is a sectional structure diagram of the water purification device. Figure 3 It is a partial top view structure diagram of the water purification device, which can be referred to Figures 1 to 3, The water purification system includes: a first pipeline 1, which is connected in series to the water-vapor pipeline 2; the water purification system includes the first pipeline 1, and the first pipeline 1 is connected in series to the water-vapor pipeline 2; the first pipeline 1 further includes a water purification device 3, and the water purification device 3 includes a housing 4, at least one first sleeve 5 and a magnetic component 6; the top 41 of the housing 4 includes at least one opening 42, and at least the first sleeves 5 are inserted into the openings 42 in a one-to-one correspondence. The first sleeve 5 includes an open end 51 and a closed end 52 which are oppositely arranged. The open end 51 is close to the opening 42, and the closed end 52 extends towards the bottom 43 of the housing 4; the space formed between the top 41 of the housing 4, the bottom 43 of the housing 4, the side wall 44 of the housing 4 and the tube wall of the first sleeve 5 forms a medium flow chamber 7; the side wall 44 of the housing 4 includes a medium inlet 45 and a medium outlet 46. The medium inlet 45 is connected to the upstream of the first pipeline 1, and the medium outlet 46 is connected to the downstream of the first pipeline 1; the magnetic component 6 includes at least one magnetic rod 60. The water purification system includes a first working state, in which the magnetic rod 60 is correspondingly placed in the first sleeve 5.

[0045] As Figures 1 to 3 shown, the first pipeline 1 may include a first end and a second end. The first end is connected to the upstream of the water-vapor pipeline 2, and the second end is connected to the downstream of the water-vapor pipeline 2. The water purification device 3 is connected between the first end and the second end. The embodiments of the present invention do not limit the installation position of the water purification system in the water-vapor pipeline 2, and those skilled in the art can set it according to actual needs.

[0046] Among them, the shape of the housing 4 of the water purification device 3 is not limited, and those skilled in the art can set it according to actual needs. Exemplarily, the overall outer shape of the housing 4 can be cylindrical or cubic, but not limited thereto, Figure 2 and Figure 3 the cylindrical shape is taken as an example. The housing 4 may include a top 41 (i.e., the top surface) and a bottom 43 (i.e., the bottom surface) which are oppositely arranged along the height direction of the housing 4, and a side wall 44 (i.e., the side surface) connecting the top 41 and the bottom 43. The various parts of the above-mentioned housing 4 can be integrally formed or separately connected, and the embodiments of the present invention do not limit this. Based on the installation orientation of the water purification device 3, the top 41 of the housing 4 is on the top and the bottom 43 is on the bottom.

[0047] Among them, as Figures 1 to 3 shown, the top 41 of the housing 4 includes at least one opening 42, and the shape of the opening 42 is not limited and can be circular or polygonal, Figure 3Taking the circle as an example for introduction, the shape and size of the opening 42 match the first sleeve 5. Taking the radial cross-sections of both the opening 42 and the first sleeve 5 as circular as an example, the diameter of the opening 42 is the same as the outer diameter of the first sleeve 5, so that the first sleeve 5 can be tightly inserted into the opening 42. Among them, the first sleeve 5 is a tubular shape with one end closed and the other end open, and the extending direction of the first sleeve 5 is the same as the height direction of the housing 4. The open end 51 of the first sleeve 5 can be flush with or higher than the opening 42, and the closed end 52 of the first sleeve 5 extends downward to a position close to the bottom 43 of the housing. The space enclosed by the tube wall (outer wall) of the first sleeve 5, the top 41, the bottom 43 and the side wall 44 of the housing 4 is the inner cavity of the housing 4, and the inner cavity of the housing 4 serves as the medium flow chamber 7. It should be noted that without the first sleeve 5, the inner cavity of the housing 4 will be exposed from the opening 42. By inserting the first sleeve 5 at the opening 42, the first sleeve 5 can seal the opening 42 to ensure the sealing effect of the inner cavity of the housing 4.

[0048] Furthermore, continuing to refer to Figures 1 to 3 , a medium inlet 45 and a medium outlet 46 are provided on the side wall 44 of the housing 4. The medium inlet 45 and the medium outlet 46 are respectively located on opposite sides in the radial direction of the housing 4. The housing 4 is connected to the first pipeline 1 through the medium inlet 45 and the medium outlet 46 on its side wall 44. After the medium in the water vapor pipeline 2 enters the first pipeline 1, it flows into the medium flow chamber 7 through the medium inlet 45, is purified in the medium flow chamber 7 and then flows out from the medium outlet 46, and the purified medium continues to flow to the downstream equipment. Optionally, as Figure 2 shown, in some embodiments of the present invention, the height of the medium inlet 45 can be set higher than the height of the medium outlet 46 to ensure the flow effect of the medium in the first pipeline 1.

[0049] In this setting method, along the radial direction of the housing 4, the first sleeve 5 overlaps with the medium flow chamber 7. The inner space of the first sleeve 5 is the space outside the inner cavity of the housing 4, that is, the inner space of the first sleeve 5 is the area spaced outside the medium flow chamber 7. The outer wall of the first sleeve 5 faces the medium flow chamber 7. When the medium flows in the medium flow chamber 7, it will contact the outer wall of the first sleeve 5.

[0050] Furthermore, as Figures 1 to 3As shown, the water purification device 3 further includes a magnetic component 6. The magnetic component 6 has at least one magnetic rod 60. The shape of the magnetic rod 60 may be the same as or different from that of the first sleeve 5. In the present utility model, the case where the magnetic rod 60 is cylindrical is taken as an example for illustration, but it is not limited thereto in reality. It should be noted that the radial dimension of the magnetic rod 60 should be smaller than the radial dimension of the first sleeve 5. Taking the case where the radial shapes of the magnetic rod 60 and the first sleeve 5 are both circular as an example, the diameter of the magnetic rod 60 should be smaller than the diameter of the first sleeve 5. In this way, it can be ensured that in the first working state of the water purification system, the magnetic rod 60 can be at least partially inserted into the first sleeve 5. When the magnetic rod 60 is located in the first sleeve 5, both the side surface and the bottom surface of the magnetic rod 60 are close to the medium flow chamber 7 and are spaced from the medium flow chamber 7. Among them, in the first working state, the magnetic rod 60 can be partially or completely inserted into the first sleeve 5. The embodiments of the present utility model do not limit this, as long as the side surface of the magnetic rod 60 faces the medium flow chamber 7 is ensured.

[0051] The first working state can be the normal working state of the water purification system. In the first working state, the first pipeline 1 is connected, and the medium in the water vapor pipeline 2 enters the medium flow chamber 7 of the water purification device 3. The magnetic rod 60 is placed in the first sleeve 5. Since the magnetic rod 60 has magnetism, it can adsorb the iron ion impurities in the medium in the medium flow chamber 7. Also, because the magnetic rod 60 is spaced from the medium flow chamber 7, the iron ion impurities will be adsorbed on the outer wall of the first sleeve 5 instead of directly on the magnetic rod 60, which will not affect the magnetism of the magnetic rod 60 itself, and there is no need to clean the magnetic rod 60, reducing the influence of impurities on the magnetic rod 60, ensuring the adsorption effect of impurities during the long-term operation of the system, improving the degree of medium purification, thereby improving the heat exchange efficiency of the system and ensuring the operation safety of the steam-water system. In addition, if a large amount of impurities are adsorbed on the tube wall of the first sleeve 5, the magnetic component 6 can be moved away so that the magnetic rod 60 is removed from the first sleeve 5. After the magnetic rod 60 is removed, the impurities adsorbed on the tube wall of the first sleeve 5 will fall off by themselves and deposit at the bottom 43 of the housing 4. Then, the impurities deposited at the bottom 43 can be cleaned to avoid the influence of the too thick deposition thickness of impurities on the tube wall on the adsorption effect of the magnetic rod 60 on impurities and ensure the adsorption capacity of the magnetic component 6.

[0052] The medium purification system provided by the embodiment of the present utility model has an opening provided at the top of the outer shell, and a first sleeve is inserted into the opening, so that the inner space of the first sleeve is close to the medium flow chamber and is spaced from the medium flow chamber. When the magnetic rod is located in the first sleeve, the side and bottom surfaces of the magnetic rod are close to the medium flow chamber and do not directly contact the medium flow chamber. Since the magnetic rod has magnetism, it can adsorb iron ion impurities in the medium in the medium flow chamber. Also, since the magnetic rod is spaced from the medium flow chamber, the iron ion impurities will be adsorbed on the outer wall of the first sleeve instead of directly on the magnetic rod, which will not affect the magnetism of the magnetic rod itself, and there is no need to clean the magnetic rod, reducing the influence of impurities on the magnetic rod, ensuring the adsorption effect of impurities during long-term operation of the system, improving the degree of medium purification, thereby improving the heat exchange efficiency of the system and ensuring the operation safety of the steam-water system.

[0053] Optionally, in some embodiments, the magnetic assembly 6 may further include a bottom plate (not shown in the drawings). One end of the magnetic rod 60 is fixed to the first side of the bottom plate, and the other end extends away from the bottom plate. In the first working state, the bottom plate is placed on the top 41 of the outer shell 4, and the first side faces the outer shell 4, and the magnetic rod 60 can extend into the first sleeve 5.

[0054] Among them, the embodiment of the utility model does not limit the number of the first sleeves 5 on the top 41 of the outer shell, and those skilled in the art can set it according to actual needs. Refer to Figure 2 and Figure 3 , in an exemplary embodiment, the number of the first sleeves 5 and the magnetic rods 60 are both multiple, and the multiple first sleeves 5 are arranged in an array on the top 41 of the outer shell 4; the arrangement mode of the magnetic rods 60 is the same as that of the first sleeves 5, and in the first working state, the magnetic rods 60 are placed in the first sleeves 5 one by one.

[0055] Specifically, the arrangement mode of the first sleeves 5 on the top 41 of the outer shell is the same as the arrangement mode of the magnetic rods 60 on the bottom plate, and both are arranged in an array. In this setting mode, the magnetic assembly 6 is an array-type magnetic rod assembly. In the first working state, the magnetic rods 60 can be evenly distributed at different positions of the medium flow chamber 7, thereby effectively improving the impurity adsorption effect, and iron ion impurities with a size of 1 - 5 μm can be adsorbed by the magnetic assembly 6.

[0056] Further optionally, Figure 4 is a schematic structural diagram of another water purification device provided by the embodiment of the present utility model, Figure 4 is a partial top view structure diagram of the water purification device, and can be combined with reference to Figure 3 and Figure 4, in some embodiments, when the number of the first sleeves 5 and the magnetic rods (not shown in the figure) are both multiple, and the multiple first sleeves 5 are arranged in an array on the top 41 of the housing, there is a staggered arrangement of two adjacent first sleeves 5 in the direction from the side wall 44 of the housing 4 towards the central axis of the housing 4. In the first working state, the magnetic rods are placed in the first sleeves 5 one by one, and there is a staggered arrangement of two adjacent magnetic rods in the direction from the side wall 44 of the housing 4 towards the central axis of the housing 4.

[0057] Specifically, in an alternative embodiment, multiple layers of first sleeves 5 may be provided on the top 41 of the housing 4. Each layer of first sleeves 5 is arranged radially along the housing 4. The first sleeve 5 closer to the side wall 44 of the housing is the outer-layer first sleeve 5, and the first sleeve 5 closer to the center of the housing 4 is the inner-layer first sleeve 5. Correspondingly, the magnetic rods are also arranged in the above-mentioned layered manner in the magnetic assembly. The magnetic rod closer to the edge of the magnetic assembly is the outer-layer magnetic rod, and the one closer to the middle of the magnetic assembly is the inner-layer magnetic rod. The number of layers of the first sleeves 5 (magnetic rods) and the number of the first sleeves 5 (magnetic rods) in each layer are not limited, and those skilled in the art can set them according to actual needs.

[0058] As Figure 3 and Figure 4 shown, the overall shape of the housing 4 can be an axisymmetric shape. The central axis of the housing 4 is the axis of symmetry of the housing 4, that is, the axis of the housing 4. The direction from the side wall 44 of the housing 4 towards the central axis of the housing 4 is the radial direction of the housing 4, and it is the direction from the outside to the inside of the housing 4. There is a staggered arrangement of two adjacent first sleeves 5 in the direction from the side wall 44 of the housing 4 towards the central axis of the housing 4. It can also be understood that there is a staggered arrangement between the layers of each layer of first sleeves 5; there is a staggered arrangement between the layers of the magnetic rods in the array-type magnetic assembly.

[0059] It can be understood that the medium flows from the medium inlet 45 to the medium outlet 46 in the medium flow cavity 7. During the flowing process, the medium will successively approach different first sleeves 5 (magnetic rods). By setting a staggered arrangement between the layers of each layer of first sleeves 5 (magnetic rods), the contact between the medium and the inner walls of each first sleeve 5 is more uniform during the flowing process of the medium, so that the dispersion of impurities in the medium flow cavity 7 is more uniform, further improving the adsorption ability of the magnetic rods to impurities and ensuring the purification effect of the medium.

[0060] Further optionally, in the actual application process, those skilled in the art can design the array arrangement mode of the first sleeves 5 (magnetic rods) according to actual needs. For example, the array shape and the array spacing, etc. The embodiments of the present invention do not limit this.

[0061] Exemplarily, the array arrangement requirements of the first sleeve 5 (magnetic rod) can be designed according to the impurity adsorption requirements of the actual water vapor system. If the size of the impurities to be adsorbed is small and the quantity is large, the arrangement of the first sleeve 5 (magnetic rod) can be set to be relatively dense, including a relatively large number of the first sleeve 5 (magnetic rod) and / or a relatively small spacing between adjacent first sleeves 5 (magnetic rod); if the size of the impurities to be adsorbed is large and the quantity is small, the arrangement of the first sleeve 5 (magnetic rod) can be set to be relatively loose, including a relatively small number of the first sleeve 5 (magnetic rod) and / or a relatively large spacing between adjacent first sleeves 5 (magnetic rod).

[0062] In some specific embodiments, the first sleeve 5 (magnetic rod) can be designed to be in a circular array or a rectangular array. Figure 3 As shown in the circular array arrangement. Figure 4 As shown in the rectangular array arrangement. The spacing between adjacent first sleeves 5 (magnetic rod) is in the range of 50 - 100 mm; through actual tests, designing the first sleeve 5 (magnetic rod) according to the above parameters can meet the impurity adsorption requirements of most water vapor systems.

[0063] Optionally, reference can be continued to Figure 2 , in some embodiments, the water purification device 3 further includes a lifting component 8, and the lifting component 8 is fixed to the magnetic component 6; in the first working state, the lifting component 8 is in the first position. When the lifting component 8 is in the first position, the magnetic rod 60 is correspondingly placed in the first sleeve 5; the water purification system further includes a second working state. In the second working state, the lifting component 8 moves upward to the second position. When the lifting component 8 is in the second position, the magnetic rod 60 moves upward out of the first sleeve 5.

[0064] Specifically, when the magnetic component 6 only includes the magnetic rod 60, the lifting component 8 can be directly fixed to one end of the magnetic rod 60. When the magnetic component 6 includes the magnetic rod 60 and the bottom plate, the lifting component 8 can be fixed to the second side of the bottom plate, and the second side is located on the side opposite to the first side. The lifting component 8 is a movable component and can move between the first position and the second position. Among them, along the orientation shown in the figure, the first position is below the second position. Figure 2 As shown, the lifting component 8 is in the first position and the magnetic rod 60 is located in the first sleeve 5.

[0065] When the lifting assembly 8 is in the first position, the magnetic rod 60 is at least partially inserted into the first sleeve 5, and when the lifting assembly 8 is in the second position, the magnetic rod 60 moves to the top of the first sleeve 5, or moves to the top of the shell 4. When the magnetic rod 60 moves up to the outside of the first sleeve 5, the impurities adsorbed by the tube wall of the first sleeve 5 will fall to the bottom 43 of the shell 4, and then the impurities deposited on the bottom 43 can be cleaned. The existence of the lifting assembly 8 can realize the automatic movement of the magnetic assembly 6, and there is no need for the staff to manually take out the magnetic rod 60, which can save the manual operation process and improve the intelligence of the water purification system.

[0066] Optionally, the lifting assembly 8 may include a fixed structure and a motor. Figure 2 The lifting assembly 8 shown in the figure is a fixed structure, and the motor is not shown. The fixed structure is fixed to the magnetic assembly 6, and the motor is in driving connection with the fixed structure. The motor controls the fixed structure to move up and down, and the fixed structure moves up and down to drive the magnetic assembly 6 to move. The first position (second position) of the lifting assembly 8 can be the first position (second position) of the fixed structure.

[0067] Optional, Figure 5 A schematic diagram of the circuit structure of a water purification system provided by the present utility model can be combined with reference to Figures 2 to 5 In some embodiments, the bottom 43 of the housing 4 further includes a drain port 47 and a drain port switch 48, and the drain port 47 connects the medium flow chamber 7 with the external environment; the water purification system further includes a controller 9, and the controller 9 includes a lifting signal output terminal 91 and a drain signal output terminal 92, the lifting signal output terminal 91 is electrically connected to the lifting component 8, and the drain signal output terminal 92 is electrically connected to the drain port switch 48; in the first working state, the controller 9 controls the lifting component 8 to maintain in the first position, and controls the drain port switch 48 to be closed; in the second working state, the controller 9 controls the lifting component 8 to move to the second position, and controls the drain port switch 48 to be opened.

[0068] Specifically, Figures 2 to 5 As shown, the bottom 43 of the housing 4 is provided with a sewage outlet 47 and a sewage outlet switch 48 for controlling the on-off state of the sewage outlet 47. The controller 9 is a master control module of the water purification system. The controller 9 is electrically connected to the lifting component 8 through the lifting signal output terminal 91, for example, it can be electrically connected to the motor in the lifting component 8 to send a position control signal to the lifting component 8; the controller 9 is electrically connected to the sewage outlet switch 48 through the sewage discharge signal output terminal 92 to send a sewage discharge control signal to the sewage outlet switch 48.

[0069] The control logic of the controller 9 is as follows: In the first working state, the controller 9 sends a first position signal to the lifting component 8, and the lifting component 8 responds to the first position signal and maintains at the first position. The magnetic rod 60 is placed inside the first sleeve 5 to adsorb impurities in the medium flow chamber 7. The controller 9 sends a sewage discharge stop signal to the sewage outlet switch 48, and the sewage outlet switch 48 responds to the sewage discharge stop signal and remains in the closed state, so that the medium flow chamber 7 is not communicated with the external environment. In the second working state, the controller 9 sends a second position signal to the lifting component 8, and the lifting component 8 responds to the second position signal and moves up to the second position. The magnetic rod 60 moves up outside the first sleeve 5 and no longer adsorbs impurities in the medium flow chamber 7, and the impurities fall to the bottom 43 of the housing. The controller 9 sends a sewage discharge start signal to the sewage outlet switch 48, and the sewage outlet switch 48 responds to the sewage discharge start signal and opens, so that the medium flow chamber 7 is communicated with the external environment, and the impurities deposited at the bottom 43 are discharged through the sewage outlet 47. Through the above solution, the impurity adsorption and discharge work can be completed intelligently.

[0070] Optionally, reference can be further made to Figures 1 to 5 , in some embodiments, the water purification system may further include a second pipeline 10. The second pipeline 10 is connected in parallel with the first pipeline 1. A first valve 11 is provided in the first pipeline 1, and a second valve 12 is provided in the second pipeline 10. The controller 9 further includes a first valve control signal output terminal 93 and a second valve control signal output terminal 94. The first valve control signal output terminal 93 is electrically connected to the first valve 11, and the second valve control signal output terminal 94 is electrically connected to the second valve 12. In the first working state, the controller 9 controls the first valve 11 to open and controls the second valve 12 to close. In the second working state, the controller 9 controls the first valve 11 to close and controls the second valve 12 to open.

[0071] As Figures 2 to 5 shown, the second pipeline 10 is a bypass pipeline. The second pipeline 10 is also connected in series in the water-vapor pipeline 2 and is connected in parallel with the first pipeline 1. The first valve 11 in the first pipeline 1 is used to control the on-off of the first pipeline 1, and the second valve 12 in the second pipeline 10 is used to control the on-off of the second pipeline 10. The controller 9 is electrically connected to the first valve 11 through the first valve control signal output terminal 93 to send a first valve control signal to the first valve 11. The controller 9 is also electrically connected to the second valve 12 through the second valve control signal output terminal 94 to send a second valve control signal to the second valve 12.

[0072] In this embodiment, on the basis of the control logic proposed in the above embodiment, the following control logic is further included: In the first working state, the controller 9 sends a first valve opening signal to the first valve 11 and a second valve closing signal to the second valve 12. The first valve 11 responds to the first valve opening signal and opens, and the second valve 12 responds to the second valve closing signal and closes. The first pipeline 1 is communicated with the water vapor pipeline 2, and the second pipeline 10 is not communicated with the water vapor pipeline 2. The medium flows into the first pipeline 1 for purification. In the second working state, the controller 9 sends a first valve closing signal to the first valve 11 and a second valve opening signal to the second valve 12. The first valve 11 responds to the first valve closing signal and closes, and the second valve 12 responds to the second valve opening signal and opens. The second pipeline 10 is communicated with the water vapor pipeline 2, and the first pipeline 1 is not communicated with the water vapor pipeline 2. The medium flows into the second pipeline 10 and flows through the second pipeline 10 to the downstream pipelines and equipment.

[0073] In this setting mode, in the second working state, the medium in the medium flow chamber 7 no longer flows. At this time, the magnetic rod 60 moves upward outside the first sleeve 5, and the adsorbed impurities can naturally fall to the bottom 43 of the housing, and will not be affected by the flowing medium, ensuring that the impurities are deposited at the bottom 43 of the housing after falling off, so that as many impurities as possible in the medium flow chamber 7 are discharged from the drain port 47.

[0074] In this embodiment, by providing the second pipeline 10, when the medium purification system discharges sewage or is under maintenance, the second pipeline 10 can be used to transport the medium, and impurities can be discharged while ensuring the normal operation of the water vapor system, realizing the online cleaning of impurities.

[0075] Among them, optionally, the first valve 11 may include a first sub-isolation valve 111 and a second sub-isolation valve 112. The first sub-isolation valve 111 is installed at the front end of the water purification device 3, and the second sub-isolation valve 112 is installed at the rear end of the water purification device 3. The first sub-isolation valve 111 and the second sub-isolation valve 112 are respectively electrically connected to the controller 9. The controller 9 controls the first sub-isolation valve 111 and the second sub-isolation valve 112 to open or close simultaneously. The advantage of setting two sub-isolation valves is that in the second working state, the media in the front pipeline and the rear pipeline of the medium flow chamber 7 no longer flow, thereby further reducing the fluctuation of the medium in the medium flow chamber 7 and improving the impurity deposition rate.

[0076] The number of the second valves 12 can be set to one, and the second valve 12 can also be an isolation valve, but it is not limited thereto.

[0077] Optionally, Figure 6 is a circuit structure schematic diagram of another water purification system provided by the embodiment of the present invention, which can be referred to in combination with Figure 2 and Figure 6, the water purification device 3 may further include a magnetic detection component 13, and the magnetic detection component 13 is fixed to the housing 4; the controller 9 includes a magnetic force signal receiving end 95, and the magnetic force signal receiving end 95 is electrically connected to the magnetic detection component 13; the magnetic detection component 13 detects the magnetic field strength in the medium flow chamber 7 and sends the magnetic field strength information to the controller 9, and the controller 9 adjusts the working state of the water purification system according to the magnetic field strength information.

[0078] As the number of impurities attached to the wall of the first sleeve 5 increases and the thickness of the impurities attached to the wall becomes thicker, the magnetic field strength in the area near the first sleeve 5 in the medium flow chamber 7 becomes smaller. That is, the attraction of the magnetic rod 60 to the impurities that have not been adsorbed in the flowing medium becomes smaller.

[0079] Based on this, in this embodiment, it is proposed that a magnetic detection component 13 can be added to the water purification device 3 to detect the magnetic field strength in the area near the first sleeve 5 in the medium flow chamber 7 in real time. The magnetic detection component 13 is electrically connected to the magnetic force signal receiving end 95 of the controller 9, and the magnetic detection component 13 sends the detected magnetic field strength information to the controller 9. A magnetic field strength threshold can be pre-stored in the controller 9. If it is detected that the current magnetic field strength is less than the magnetic field strength threshold, it means that the magnetic field strength at the first sleeve 5 is too small to achieve a good impurity adsorption effect. At this time, the controller 9 can control the water purification system to enter the second working state; if it is detected that the current magnetic field strength is greater than or equal to the magnetic field strength threshold, it means that the magnetic field strength at the first sleeve 5 is relatively large and a good impurity adsorption effect can be achieved. At this time, the water purification system can be controlled to maintain the first working state.

[0080] In this embodiment, the working state of the water purification system is switched based on the detection result of the magnetic detection component 13, which ensures that the impurities are discharged in time when the adsorption effect of the magnetic rod 60 on the impurities decreases, and ensures that the water purification device 3 has a better adsorption effect on the impurities in the pipeline.

[0081] Of course, in other embodiments of the present invention, the first working state and the second working state can be set to be switched regularly to realize the regular cleaning of impurities, which can also ensure that the water purification device 3 has a better adsorption effect on the impurities in the pipeline.

[0082] Figure 7 For a schematic structural diagram of a magnetic rod provided by an embodiment of the present invention, reference can be made to Figure 7 , in a possible embodiment, the magnetic rod 60 may include a second sleeve 601, a plurality of permanent magnets 602 and a plurality of spacers 603, and the permanent magnets 602 and the spacers 603 are alternately stacked in sequence along the height direction of the second sleeve 601; the same-sex magnetic poles of any two adjacent permanent magnets 602 are close to each other.

[0083] Specifically, the first sleeve 5 may be a tubular structure with one end closed and the other end open, or the second sleeve 601 may be a tubular structure with both ends closed. The embodiments of the present invention do not limit this. The second sleeve 601 serves to support and fix the permanent magnet 602. A plurality of permanent magnets 602 are stacked along the length direction (height direction) of the second sleeve 601. The permanent magnet 602 can also be called a magnetic steel, and it can be made of aluminum-nickel-cobalt, neodymium-iron-boron, or ferrite permanent magnet materials. Stacking a plurality of permanent magnets 602 can increase the magnetism of the magnetic rod 60.

[0084] In addition, this embodiment also defines that adjacent permanent magnets 602 are stacked in a form with the same poles facing each other, and any two adjacent permanent magnets 602 are spaced by a spacer 603. In this setting method, the magnetic fields of each permanent magnet 602 are relatively independent, avoiding interference between magnetic fields and affecting the overall magnetism of the magnetic rod 60.

[0085] Among them, the spacer 603 can be made of a magnetic conductive material, and the specific material of the magnetic conductive material is not limited. Those skilled in the art can set it according to actual needs.

[0086] Further optionally, in some embodiments, the material used for the permanent magnet 602 can be selected according to the medium characteristics of the water vapor system. Exemplarily, the permanent magnet 602 can be prepared by selecting a permanent magnet material that matches the actual medium temperature according to the medium temperature in the water vapor system. Specifically, if the medium temperature in the water vapor system is relatively high, a permanent magnet material with relatively stable magnetism in a higher temperature environment can be selected to make the permanent magnet 602; if the medium temperature in the water vapor system is relatively low, a permanent magnet material with relatively stable magnetism in a lower temperature environment can be selected to prepare the permanent magnet 602, ensuring the adsorption performance of the permanent magnet 602.

[0087] Among them, both the first sleeve 5 and the second sleeve 601 can be prepared from corrosion-resistant and non-magnetic materials, such as polymer materials or stainless steel materials, etc. The embodiments of the present invention do not elaborate or limit this.

[0088] Optionally, continue to refer to Figures 2 to 4 , in the embodiments of the present invention, the water purification device 3 may further include at least one layer of flow equalizing orifice plate 14. The flow equalizing orifice plate 14 is located in the medium flow chamber 7 and surrounds the first sleeve 5 along the height direction of the housing 4; the flow equalizing orifice plate 14 includes a plurality of openings (not shown in the figure).

[0089] Specifically, as Figures 2 to 4As shown, the flow equalizing orifice plate 14 is installed in the medium flow cavity 7 near the side wall 44 of the housing, and the flow equalizing orifice plate 14 surrounds the first sleeve 5. Herein, surrounding the first sleeve 5 means that along the radial direction of the housing 4, the flow equalizing orifice plate 14 is located between the side wall 44 of the housing and the first sleeve 5. Thus, after the medium enters the medium inlet 45, it will first pass through the multi-flow equalizing orifice plates 14, and then flow through the openings on the flow equalizing orifice plate 14 to the position where the first sleeve 5 is located. The presence of the flow equalizing orifice plate 14 can achieve a flow equalizing effect, enabling the medium to flow uniformly, and the flow velocity of the medium in the medium flow cavity 7 is basically the same, thereby ensuring the adsorption effect of the magnetic component 6 on impurities.

[0090] Among them, in the embodiments of the present invention, parameters such as the number of layers of the flow equalizing orifice plate 14, the number of openings on each layer of the flow equalizing orifice plate 14, and the size of the openings are not limited, and the above parameters can be set according to actual needs.

[0091] Exemplarily, in some embodiments, the porosity of each layer of the flow equalizing orifice plate 14 can be set to be greater than 90%, the opening diameter is in the range of 2 - 50 mm, and the resistance of the flow equalizing orifice plate 14 to the medium is not greater than 100 Pa. When the flow equalizing orifice plate 14 meets the above parameter requirements, a better flow equalizing effect can be achieved.

[0092] Optionally, the shape of the flow equalizing orifice plate 14 can match the overall shape of the housing 4, for example, it can be cylindrical or rectangular box-shaped, but not limited thereto.

[0093] Furthermore, in some embodiments, along the direction from the side wall 44 of the housing 4 to the central axis of the housing 4, the opening diameter of the outer layer of the flow equalizing orifice plate 14 is greater than the opening diameter of the inner layer of the flow equalizing orifice plate 14; or, along the medium flow direction, the opening diameters of the flow equalizing orifice plates 14 of each layer gradually decrease.

[0094] Specifically, the size of the openings on the inner layer of the flow equalizing orifice plate 14 can be set to be smaller than the size of the openings on the outer layer of the flow equalizing orifice plate 14, or the size of the openings of each layer of the flow equalizing orifice plate 14 gradually decreases along the medium flow direction. Through the above two schemes, the flow uniformity of the medium in the area near the position where the first sleeve 5 is located can be further improved.

[0095] Optionally, with continued reference to Figure 2 , the water purification device may further include a support partition 15. The support partition 15 can be located in the middle of the housing 4 in the height direction. The extending direction of the support partition 15 is parallel to the radial direction of the housing 4, and is in contact with both the side wall 44 of the housing 4 and the tube wall of the first sleeve 5. The support partition 15 can play a fixing role to ensure the fixing strength of the water purification device 3.

[0096] The water purification system provided by the embodiments of the present invention may further include any structure known to those skilled in the art, and the present invention will not elaborate or limit this.

[0097] Note that the above is only the preferred embodiment of the present utility model and the technical principles applied. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments, combinations with each other and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments only. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A water purification system, characterized in that: Applied to a water vapor pipeline of a power plant, the water purification system comprises a first pipeline, which is connected in series to the water vapor pipeline; the first pipeline also comprises a water purification device, which comprises a housing, at least one first sleeve and a magnetic component; The top of the housing includes at least one opening, at least the first sleeves are inserted into the opening in a one-to-one correspondence, the first sleeves include an open end and a closed end that are oppositely arranged, the open end is close to the opening, and the closed end extends toward the bottom of the housing; The space enclosed by the top of the shell, the bottom of the shell, the side wall of the shell and the tube wall of the first sleeve forms a medium flow cavity; The side wall of the housing includes a medium inlet and a medium outlet, the medium inlet is connected to the upstream of the first pipeline, and the medium outlet is connected to the downstream of the first pipeline; The magnetic component includes at least one magnetic rod, and the water purification system includes a first working state. In the first working state, the magnetic rod is correspondingly placed in the first sleeve.

2. The water purification system according to claim 1, characterized in that: The water purification device further comprises a lifting component, and the lifting component is fixed to the magnetic component; In the first working state, the lifting assembly is in a first position, and when the lifting assembly is in the first position, the magnetic rod is correspondingly placed in the first sleeve; The water purification system also includes a second working state. In the second working state, the lifting assembly moves upward to a second position. When the lifting assembly is in the second position, the magnetic rod moves upward to the outside of the first sleeve.

3. The water purification system according to claim 2, characterized in that: The bottom of the housing also includes a sewage outlet and a sewage outlet switch, and the sewage outlet connects the medium flow cavity with the external environment; The water purification system further comprises a controller, the controller comprising a lifting signal output terminal and a sewage discharge signal output terminal, the lifting signal output terminal is electrically connected to the lifting component, and the sewage discharge signal output terminal is electrically connected to the sewage discharge port switch; In the first working state, the controller controls the lifting assembly to maintain in the first position, and controls the sewage outlet switch to be closed; in the second working state, the controller controls the lifting assembly to move to the second position, and controls the sewage outlet switch to be opened.

4. The water purification system according to claim 3, characterized in that: The water purification system further comprises a second pipeline, the second pipeline is connected in parallel with the first pipeline, a first valve is arranged in the first pipeline, and a second valve is arranged in the second pipeline; The controller further comprises a first valve control signal output terminal and a second valve control signal output terminal, wherein the first valve control signal output terminal is electrically connected to the first valve, and the second valve control signal output terminal is electrically connected to the second valve; In the first working state, the controller controls the first valve to open, and controls the second valve to close; in the second working state, the controller controls the first valve to close, and controls the second valve to open.

5. The water purification system according to claim 4, characterized in that: The water purification device further comprises a magnetic detection component, and the magnetic detection component is fixed to the housing; The controller includes a magnetic signal receiving end, which is electrically connected to the magnetic detection component; the magnetic detection component detects the magnetic field strength in the medium flow cavity and sends the magnetic field strength information to the controller, and the controller adjusts the working state of the water purification system according to the magnetic field strength information.

6. The water purification system according to claim 1, characterized in that: There are multiple first sleeves and multiple magnetic rods, and the multiple first sleeves are arranged in an array on the top of the shell; the arrangement of the magnetic rods is the same as that of the first sleeves. In the first working state, the magnetic rods are placed in the first sleeves one by one.

7. The water purification system according to claim 6, characterized in that: Along the direction of the side wall of the shell pointing to the central axis of the shell, there are two adjacent first sleeves arranged in a staggered manner.

8. The water purification system according to claim 1, characterized in that: The magnetic rod comprises a second sleeve, a plurality of permanent magnets and a plurality of spacers, wherein the permanent magnets and the spacers are alternately stacked in sequence along the height direction of the second sleeve; and the like magnetic poles of any two adjacent permanent magnets are close to each other.

9. The water purification system according to claim 1, characterized in that: The water purification device further comprises at least one layer of flow balancing orifice plate, wherein the flow balancing orifice plate is located in the medium flow cavity, and along the height direction of the shell, the flow balancing orifice plate surrounds the first sleeve; The flow balancing orifice plate includes a plurality of openings.

10. The water purification system according to claim 9, characterized in that: Along the side wall of the shell pointing to the central axis of the shell, the diameter of the opening on the outer layer of the flow averaging orifice plate is larger than the diameter of the opening on the inner layer of the flow averaging orifice plate; or, Along the flow direction of the medium, the diameter of the openings on the flow averaging orifice plates of each layer gradually decreases.

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