Magnetic field iron and oxygen removal device with filtering function and use method of magnetic field iron and oxygen removal device

Abstract

The invention discloses a magnetic field deironing deaerator with a filtering function, and relates to the technical field of deaerator filtering, the magnetic field deironing deaerator comprises a deaerator body, a bearing mechanism, a purifying mechanism and a positioning mechanism, at least one water outlet pipe is mounted at the bottom of the deaerator body, the bearing mechanism is mounted at one end of an inner cavity of the deaerator body, and the purifying mechanism is mounted at the other end of the inner cavity of the deaerator body; the bearing mechanism is used for permanent magnetic filtration of water in an inner cavity of the deaerator body, the purification mechanism is installed on the top of the bearing mechanism and used for mechanical filtration of the water in the inner cavity of the deaerator body, and the positioning mechanism is installed on the side edge of the bearing mechanism. By means of the arrangement mode that the bearing mechanism and the purification mechanism are matched, a large amount of iron-based corrosion products in water are removed through the bearing mechanism, condensate water entering the deaerator is fully filtered through the cooperation of the purification mechanism, impurities flowing out of the water outlet pipe are reduced, the risks of corrosion, scaling and the like are reduced, an original pipeline does not need to be transformed, and the cost is reduced. The filter area is large, the adsorption effect is high, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of deaerator filtration technology, and in particular to a magnetic field iron removal and deaerator with filtration function and its usage method. Background Technology

[0002] The primary goal of power plant water purification is to protect the safe operation of boilers. Existing boilers generally use purification devices on the condensate system, but boiler pollution accidents still occur. After passing through the treatment device, the boiler condensate enters the inner cavity of the deaerator, and then enters the high-pressure heater through the deaerator outlet. Because there are many impurities and high iron content in the heating drain regulating valve of the heater, it is easy to cause the regulating valve to jam, affecting the fluctuation of the water level in the high-pressure heater and also affecting the heat exchange in the high-pressure heater. In view of the above, it is generally required to install iron removal filtration equipment on the heater drain return water pipeline to remove iron from the heater return water.

[0003] However, the existing iron removal filtration equipment is installed on the drain return pipe of the heater, that is, on the pipe between the heater and the deaerator. The added iron removal filtration equipment requires a separate space to place the filter tank and supporting pipes, valves, instruments and other equipment, which requires modification of the original pipes. The effective filtration area is small and the adsorption effect is weak, which affects the filtration performance of impurities. Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic field deoxidizer with filtration function and its usage method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a magnetic field iron removal and deoxygenation device with filtration function, comprising:

[0006] A deaerator body, wherein at least one water outlet pipe is installed at the bottom of the deaerator body;

[0007] Also includes:

[0008] The support mechanism is installed at one end of the inner cavity of the deaerator body and is used for permanent magnet filtration of the water in the inner cavity of the deaerator body.

[0009] A purification mechanism is installed on top of the supporting mechanism and is used for mechanical filtration of the water in the internal cavity of the deaerator.

[0010] A positioning mechanism is installed on the side of the supporting mechanism. The purification mechanism and the supporting mechanism are located in the inner cavity of the deaerator body through the positioning mechanism. The positioning mechanism is used for the assembly and disassembly of the purification mechanism and the supporting mechanism.

[0011] Preferably, the load-bearing mechanism includes:

[0012] The support block has a bottom that is arc-shaped and fits into the inner wall of the deaerator body;

[0013] A sealing gasket, which is adhered to the bottom of the support block;

[0014] A through slot is provided on the side of the support block;

[0015] A card slot is provided on the top of the support block;

[0016] A retaining ring is disposed on one side of the slot and is fixedly connected to the top of the bearing block;

[0017] A permanent magnet purification component is installed in the middle of the support block.

[0018] Preferably, the permanent magnet purification component includes:

[0019] A connecting groove is formed in the middle of the bearing block;

[0020] A magnetic tube, which is installed longitudinally at the top of the inner wall of the connecting groove;

[0021] An assembly plate is fixed below the magnetic tube and is fixed to the inner cavity of the connecting groove.

[0022] A permanent magnet is installed laterally in the inner cavity of the assembly plate.

[0023] Preferably, the purification mechanism includes:

[0024] A fixing frame is disposed on the top of the support block;

[0025] A connecting frame, which rotates to the top side of the fixed frame via a hinge;

[0026] A flow guiding component is installed on the outer wall of the fixed frame and also installed in the inner cavity of the connecting frame;

[0027] A purification mesh, wherein the purification mesh is a rectangular mesh frame structure disposed within the cavity of a fixed frame;

[0028] A limiting component is installed on the side of the purification net and is connected to a fixing ring and a positioning mechanism.

[0029] Preferably, the flow guiding component includes:

[0030] The first flow guide is a horizontal structure fixed to the side wall and top of the fixed frame;

[0031] The second flow guide is fixed to the outer wall of the fixed frame in a longitudinal structure, and the second flow guide is installed in the inner cavity of the first flow guide.

[0032] Preferably, the limiting component includes:

[0033] A rotating column, which is rotatably interlocked with the frame of the purification screen via bearings;

[0034] A limiting groove is provided at one end of the rotating column;

[0035] A hook is fixed to the bottom of the rotating column and is inserted into the inner cavity of the fixing ring.

[0036] Preferably, the positioning mechanism includes:

[0037] A positioning block, which is welded to the inner wall of the deaerator body;

[0038] A sliding component, wherein the sliding component is disposed in the middle of the positioning block;

[0039] An interlocking plate, the interlocking plate being fixed to the bottom of the sliding assembly;

[0040] A half gear, which rotates on top of a sliding assembly, the sliding assembly being used to drive the rotation of the half gear;

[0041] A shaped block, which is fixed to the middle of the half gear, is used to fix the frame in place;

[0042] A cross block is installed at one end of a shaped block and is used to rotate the limiting component.

[0043] Preferably, the sliding component includes:

[0044] A slider that slides through the inner cavity of the positioning block;

[0045] Gear grooves are formed on the top of the slider;

[0046] A screw, one end of which is rotatably connected to one end of a slider, and the screw is threadedly connected to one end of a positioning block;

[0047] A rotating block, which is fixed to one end of the screw and is located at the end of the positioning block.

[0048] Preferably, the inner cavity of the deaerator body is provided with a heating mechanism, and a manhole is installed at one end of the deaerator body. The heating mechanism includes:

[0049] The first heating element is installed at the top of the deaerator body cavity;

[0050] The second heating element is fixed to the bottom of the first heating element;

[0051] A retaining ring is fitted onto the outer wall of the first heating tube and is used for the connection between the first heating tube and the deaerator body.

[0052] This invention also provides a method for using a magnetic field iron removal and deoxygenation device with filtration function, including the following specific steps:

[0053] Step 1: Insert the bearing block into the inner cavity of the through plate, so that the inner cavity of its connecting groove is opposite to the inner cavity of the outlet pipe, and make the sealing gasket fit tightly against the inner wall of the deaerator body;

[0054] Step 2: Set the fixing frame on top of the support block. When welding the first and second flow guides to the fixing frame, make the irregular block snap into the middle of the adjacent first and second flow guides. Slide the purification screen into the inner cavity of the fixing frame through the connecting frame, so that the bottom of the purification screen fits tightly with the top of the support block, and make the cross block snap into the inner cavity of the limiting groove. Close the connecting frame and limit the position of the connecting frame and the fixing frame with the locking device.

[0055] Step 3: The operator manually rotates the rotating block, causing its screw to rotate and pushing the slider, causing the half gear meshing with the toothed groove to rotate, making the horizontally arranged irregular block rotate 90 degrees. One end of the irregular block is locked into the fixed frame, and the middle of the irregular block separates the first and second flow guide frames. At the same time, the cross block drives the rotating column to rotate, so that the hook can engage with the fixed ring. The water in the deaerator's internal cavity is guided and dispersed through the first and second flow guide frames, and then enters the inner cavity of the purification screen to isolate impurities. The water then passes through the permanent magnet purification component, where magnetic metal impurities are filtered by the magnetic tube and permanent magnet.

[0056] The technical effects and advantages of this invention are as follows:

[0057] (1) The present invention utilizes the combination of the carrying mechanism and the purification mechanism to remove a large amount of iron-based corrosion products from the water. Combined with the purification mechanism, it is convenient to fully filter the condensate after entering the deaerator, reduce the flow of impurities from the outlet pipe, reduce the risk of corrosion and scaling, and eliminate the need to modify the original pipeline. The filtration area is large, the adsorption effect is high, and the service life of the equipment is extended.

[0058] (2) The present invention utilizes the combination of positioning mechanism and purification mechanism to reduce the scouring of impurities on valves and other components and reduce the accumulation of impurities on valve plates and other parts. It can effectively prevent jamming during valve opening and closing, and reduce the impact of water flow resistance in the deaerator cavity on the purification screen. It can comprehensively filter impurities in the deaerator cavity. Furthermore, the positioning mechanism makes it easy to disassemble and assemble the purification mechanism and the supporting mechanism.

[0059] (3) The present invention utilizes the positioning mechanism to position the bearing mechanism and the purification mechanism, so that the bearing mechanism and the purification mechanism can be stably positioned in the inner cavity of the deaerator body, and it is convenient to clean the purification screen that is prone to scaling. During the later maintenance of the deaerator, the purification mechanism and the bearing mechanism can be cleaned, which facilitates the reuse of the purification mechanism and the bearing mechanism and improves the stability of impurity filtration. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the overall partial structure of the deaerator body of the present invention.

[0061] Figure 2 This is a schematic diagram of the side structure of the deaerator body of the present invention.

[0062] Figure 3 This is a schematic diagram of the overall structure of the fixed frame of the present invention.

[0063] Figure 4 This is a schematic diagram of the overall structure of the support block of the present invention.

[0064] Figure 5 This is a front cross-sectional view of the support block of the present invention.

[0065] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0066] Figure 7 This is a schematic diagram of the side structure of the rotating column in this invention.

[0067] Figure 8 This is a side cross-sectional view of the positioning block of the present invention.

[0068] Figure 9 This is a side cross-sectional view of the assembly plate of the present invention.

[0069] In the diagram: 1. Deaerator body; 2. Outlet pipe; 3. Supporting mechanism; 31. Support block; 32. Sealing gasket; 33. Through slot; 34. Slot; 35. Fixing ring; 36. Permanent magnet purification component; 361. Connecting groove; 362. Magnetic tube; 363. Assembly plate; 364. Permanent magnet; 4. Purification mechanism; 41. Fixing frame; 42. Connecting frame; 43. Flow guiding component; 431. First flow guiding frame; 432. Second flow guiding frame; 44. 45. Cleaning mesh; 451. Limiting component; 452. Rotating column; 453. Limiting groove; 454. Hook; 5. Positioning mechanism; 51. Positioning block; 52. Sliding component; 521. Slider; 522. Gear groove; 523. Screw; 524. Rotating block; 53. Insertion plate; 54. Half gear; 55. Irregular block; 56. Cross block; 6. Heating mechanism; 61. First heating tube; 62. Second heating tube; 63. Snap ring; 7. Manhole. Detailed Implementation

[0070] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0071] This invention provides, for example Figure 1-9 The magnetic field deaerator with filtration function is shown, including a deaerator body 1. At least one water outlet pipe 2 is installed at the bottom of the deaerator body 1 so that the deoxygenated water, hot water, etc. in the inner cavity of the deaerator body 1 can be discharged through the water outlet pipe 2. One of the water outlet pipes 2 is connected to the high-pressure heater through a pipeline so that the deoxygenated water can flow steadily into the inner cavity of the high-pressure heater through the pipeline.

[0072] It also includes: a support mechanism 3, a purification mechanism 4, and a positioning mechanism 5. The support mechanism 3 is installed at one end of the inner cavity of the deaerator body 1 and is used for permanent magnet filtration of the water in the inner cavity of the deaerator body 1. The purification mechanism 4 is installed on the top of the support mechanism 3 and is used for mechanical filtration of the water in the inner cavity of the deaerator body 1. The positioning mechanism 5 is installed on the side of the support mechanism 3. The purification mechanism 4 and the support mechanism 3 are located in the inner cavity of the deaerator body 1 through the positioning mechanism 5. The positioning mechanism 5 is used for the assembly and disassembly of the purification mechanism 4 and the support mechanism 3.

[0073] Specifically, the support mechanism 3 includes: a support block 31, a sealing gasket 32, a through slot 33, a slot 34, a fixing ring 35, and a permanent magnet purification component 36. The bottom of the support block 31 has an arc-shaped structure that matches the inner wall of the deaerator body 1. The sealing gasket 32 ​​is adhered to the bottom of the support block 31, which facilitates the support block 31 to fit tightly against the inner wall of the deaerator body 1 through the sealing gasket 32. The through slot 33 is opened on the side of the support block 31, and two through slots 33 are respectively opened on the two sides of the back of the support block 31. The slot 34 is opened on the top of the support block 31. The fixing ring 35 is set on one side of the slot 34 and is fixedly connected to the top of the support block 31. The setting of the fixing ring 35, the slot 34, and the through slot 33 facilitates the convenient connection between the support mechanism 3, the purification mechanism 4, and the positioning mechanism 5.

[0074] The permanent magnet purification component 36 is installed in the middle of the support block 31. The permanent magnet purification component 36 includes: a connecting groove 361, a magnetic tube 362, an assembly plate 363, and a permanent magnet 364. The connecting groove 361 is located in the middle of the support block 31. The top of the connecting groove 361 has a rectangular cavity structure, and the bottom of the connecting groove 361 is opposite to the inner cavity of the water outlet pipe 2, which facilitates the smooth flow of water entering the inner cavity of the connecting groove 361 into the inner cavity of the water outlet pipe 2. Furthermore, the sealing gasket 32 ​​improves the sealing performance between the support block 31 and the water outlet pipe 2. The magnetic tube 362 is installed longitudinally on the top of the inner wall of the connecting groove 361. The mounting plate 363 is fixed below the magnetic tube 362 and in the inner cavity of the connecting groove 361. The permanent magnet 364 is installed laterally in the inner cavity of the mounting plate 363. The space between two adjacent permanent magnets 364 is filled with stacked iron sheets with magnetic conductivity. The cross arrangement of the magnetic tube 362 and the permanent magnet 364 facilitates the formation of two axial magnetic fields, which can filter iron-based corrosive substances, reduce the risk of corrosion and scaling, and eliminate the need to modify the original pipeline.

[0075] Furthermore, the purification mechanism 4 includes: a fixed frame 41, a connecting frame 42, a flow guiding component 43, a purification net 44, and a limiting component 45. The fixed frame 41 is located on the top of the support block 31. The connecting frame 42 rotates on one side of the top of the fixed frame 41 via a hinge, and the connecting frame 42 is connected to the front of the fixed frame 41 via a locking member, so that the connecting frame 42 and the fixed frame 41 form a complete rectangular frame structure. The flow guiding component 43 is installed on the outer wall of the fixed frame 41, and the flow guiding component 43 is also installed in the inner cavity of the connecting frame 42. The flow guiding component 43 includes: a first flow guiding frame 431 and a second flow guiding frame 432. The first flow guiding frame 431 is horizontally fixed to the side wall and top of the fixed frame 41, and the second flow guiding frame 432 is vertically fixed to the outer wall of the fixed frame 41, and the second flow guiding frame 432 is installed in the inner cavity of the first flow guiding frame 431. The first flow guiding frame 431 is formed by multiple horizontal rods and one vertical rod. The two guide frames 432 are fixed together by multiple longitudinal rods and one transverse rod. There is a gap between the first guide frame 431 and the second guide frame 432, so that the frame formed by the first guide frame 431 and the second guide frame 432 can reduce the pressure of water on the purification net 44, reduce the impact of water pressure on the purification net 44, and reduce the deformation of the purification net 44 due to water pressure. The purification net 44 is a rectangular mesh frame structure set in the inner cavity of the fixed frame 41. The corners of the purification net 44 are stainless steel metal frame structures, and the four sides and top of the purification net 44 are all fixed to the inner wall of the metal frame with stainless steel mesh, so that the stainless steel mesh can filter impurities in the deaerator water. The bottom of the purification net 44 is a rectangular rubber strip structure, so that the purification net 44 can fit tightly with the top of the support block 31. Through the setting of the purification mechanism 4 and the permanent magnet purification component 36, the impurity adsorption effect is improved, the impurity filtration performance is improved, and the service life of the equipment is not affected.

[0076] The limiting component 45 is installed on the side of the purification net 44. The limiting component 45 is connected to the fixing ring 35 and the positioning mechanism 5. The limiting component 45 includes a rotating column 451, a limiting groove 452 and a hook 453. The rotating column 451 is rotatably connected to the frame of the purification net 44 through a bearing. The limiting groove 452 is opened at one end of the rotating column 451. The hook 453 is fixed to the bottom of the rotating column 451 and is inserted and engaged with the inner cavity of the fixing ring 35. The engagement between the hook 453 and the fixing ring 35 facilitates the connection between the purification net 44 and the bearing block 31 and improves the firmness of the purification net 44.

[0077] Furthermore, two positioning mechanisms 5 are respectively disposed on both sides of the bearing block 31. Each positioning mechanism 5 includes: a positioning block 51, a sliding assembly 52, an insert plate 53, a half-gear 54, a shaped block 55, and a cross block 56. The positioning block 51 is welded to the inner wall of the deaerator body 1. The sliding assembly 52 is disposed in the middle of the positioning block 51. The insert plate 53 is fixed to the bottom of the sliding assembly 52. ​​The insert plate 53 slides through the inner cavity of the slot 33, stabilizing the bearing block 31 between the two positioning blocks 51. The half-gear 54 rotates on the top of the sliding assembly 52. ​​The sliding assembly 52 is used for half-gear rotation. The rotation drive of gear 54, the irregular block 55 is fixed in the middle of half gear 54, the irregular block 55 is used to fix the frame 41, the irregular block 55 is rotatably connected to one side of positioning block 51 through bearing, the cross block 56 is installed at one end of irregular block 55, the cross block 56 is used to screw the limiting component 45, one end of the inner cavity of limiting groove 452 has a structure that cooperates with cross block 56, the cross block 56 is inserted and locked into the inner cavity of limiting groove 452, so that the cross block 56 can drive the rotating column 451 to rotate, so that its hook 453 can lock and separate the fixing ring 35;

[0078] In particular, the sliding assembly 52 includes: a slider 521, a toothed groove 522, a screw 523, and a rotating block 524. The slider 521 slides through the inner cavity of the positioning block 51. The toothed groove 522 is formed on the top of the slider 521. One end of the screw 523 is rotatably connected to one end of the slider 521. The screw 523 is threadedly connected to one end of the positioning block 51. The rotating block 524 is fixed to one end of the screw 523 and is located at the end of the positioning block 51. By manually rotating the rotating block 524, the screw 523 can rotate, which facilitates the pushing of the slider 521. The toothed groove 522 on the slider 521 meshes with the half gear 54, which pushes the shaped block 55 to rotate. The shaped block 55 can then insert and engage with the inner cavity of the slot 34, which can clamp the fixed frame 41. The cross block 56 then rotates the rotating column 451, stabilizing the position of the purification screen 44.

[0079] Furthermore, a heating mechanism 6 is provided in the inner cavity of the deaerator body 1, and a manhole 7 is installed at one end of the deaerator body 1. The heating mechanism 6 includes a first heating tube 61, a second heating tube 62, and a retaining ring 63. The first heating tube 61 is installed at the top of the inner cavity of the deaerator body 1, and the second heating tube 62 is fixed at the bottom of the first heating tube 61. Multiple second heating tubes 62 are fixed at equal intervals at the bottom of the first heating tube 61 to facilitate the heating and deaeration of the inner cavity of the deaerator body 1 by the second heating tubes 62. The retaining ring 63 is sleeved on the outer wall of the first heating tube 61 and is used for the connection between the first heating tube 61 and the deaerator body 1. The retaining ring 63 improves the stability of the position of the first heating tube 61.

[0080] How to use this invention:

[0081] Insert the bearing block 31 into the inner cavity of the insert plate 53, so that the inner cavity of its connecting groove 361 is opposite to the inner cavity of the water outlet pipe 2, and make the sealing gasket 32 ​​fit tightly against the inner wall of the deaerator body 1.

[0082] The fixing frame 41 is set on the top of the support block 31. When welding the first flow guide 431 and the second flow guide 432 to the fixing frame 41, the irregular block 55 is stuck in the middle of the adjacent first flow guide 431 and second flow guide 432. The purification net 44 is slid into the inner cavity of the fixing frame 41 through the connecting frame 42, so that the bottom of the purification net 44 is tightly attached to the top of the support block 31. The cross block 56 is inserted into the inner cavity of the limiting groove 452. The connecting frame 42 is closed, and the position of the connecting frame 42 and the fixing frame 41 is limited by the locking member.

[0083] The operator manually rotates the rotating block 524, causing the screw 523 to rotate and pushing the slider 521, causing the half gear 54 meshing with the tooth groove 522 to rotate, causing the horizontally arranged irregular block 55 to rotate 90 degrees, so that one end of the irregular block 55 is locked into the fixed frame 41, and the middle of the irregular block 55 separates the first guide frame 431 and the second guide frame 432. At the same time, the cross block 56 drives the rotating column 451 to rotate, so that the hook 453 can engage with the fixed ring 35. The water in the inner cavity of the deaerator body 1 is guided and dispersed by the first guide frame 431 and the second guide frame 432, and then enters the inner cavity of the purification screen 44 to isolate impurities. The water then passes through the permanent magnet purification component 36, so that the magnetic metal impurities can be filtered by the magnetic tube 362 and the permanent magnet 364.

[0084] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic field deironing and deoxidizing device with filtering function, comprising: a deoxidizing device body (1), the bottom of the deoxidizing device body (1) is provided with at least one water outlet pipe (2); characterized in that it further comprises: a bearing mechanism (3) installed at one end of the inner cavity of the deoxidizing device body (1), the bearing mechanism (3) is used for permanent magnetic filtering of the water in the inner cavity of the deoxidizing device body (1); a purification mechanism (4) installed at the top of the bearing mechanism (3), the purification mechanism (4) is used for mechanical filtering of the water in the inner cavity of the deoxidizing device body (1); a positioning mechanism (5) installed at the side of the bearing mechanism (3), the purification mechanism (4) and the bearing mechanism (3) are arranged in the inner cavity of the deoxidizing device body (1) through the positioning mechanism (5), and the positioning mechanism (5) is used for dismounting the purification mechanism (4) and the bearing mechanism (3).

2. The magnetic field deironing and deoxidizing device with filtering function according to claim 1, characterized in that, the bearing mechanism (3) comprises: a bearing block (31), the bottom of the bearing block (31) is in an arc structure matched with the inner wall of the deoxidizing device body (1); a sealing gasket (32) bonded to the bottom of the bearing block (31); a through slot (33) formed at the side of the bearing block (31); a clamping groove (34) formed at the top of the bearing block (31); a fixing ring (35) arranged at one side of the clamping groove (34), the fixing ring (35) is fixedly connected with the top of the bearing block (31); a permanent magnetic purification assembly (36) installed at the middle of the bearing block (31).

3. The magnetic field deironing and deoxidizing device with filtering function according to claim 2, characterized in that, the permanent magnetic purification assembly (36) comprises: a connecting groove (361) formed at the middle of the bearing block (31); a magnetic tube (362) installed in a longitudinal manner at the top of the inner wall of the connecting groove (361); an assembly plate (363) fixed below the magnetic tube (362), the assembly plate (363) is fixed in the inner cavity of the connecting groove (361); a permanent magnet (364) installed in a transverse manner in the inner cavity of the assembly plate (363).

4. The magnetic field deironing and deoxidizing device with filtering function according to claim 2, characterized in that, the purification mechanism (4) comprises: a fixed frame (41) arranged at the top of the bearing block (31); a connecting frame (42) rotatably arranged at one side of the top of the fixed frame (41) through a hinge; a flow guide assembly (43) installed at the outer wall of the fixed frame (41) and also installed in the inner cavity of the connecting frame (42); a purification net (44) arranged in a rectangular net frame structure in the inner cavity of the fixed frame (41); a limiting assembly (45) installed at the side of the purification net (44), the limiting assembly (45) is connected with the fixing ring (35) and the positioning mechanism (5).

5. The magnetic field deironing and deoxidizing device with filtering function according to claim 4, characterized in that, the flow guide assembly (43) comprises: a first flow guide frame (431) fixed in a transverse structure at the side wall and the top of the fixed frame (41). A second flow guide frame (432) is fixed to the outer wall of the fixed frame (41) in a longitudinal structure, and is installed in the inner cavity of the first flow guide frame (431).

6. The magnetic field deironing and deoxidizing device with filtering function according to claim 4, characterized in that, The limiting assembly (45) comprises: A rotating column (451) is rotatably connected to the frame of the purification net (44) through a bearing; A limiting groove (452) is formed in one end of the rotating column (451); A clamping hook (453) is fixed to the bottom of the rotating column (451) and is inserted into the inner cavity of the fixed ring (35).

7. The magnetic field deironing and deoxidizing device with filtering function according to claim 2, characterized in that, The positioning mechanism (5) comprises: A positioning block (51) is welded to the inner wall of the deaerator body (1); A sliding assembly (52) is arranged in the middle of the positioning block (51); An insertion plate (53) is fixed to the bottom of the sliding assembly (52); A half gear (54) is rotatably arranged on the top of the sliding assembly (52) and is used to drive the rotation of the half gear (54); An irregular block (55) is fixed to the middle of the half gear (54) and is used to clamp the fixed frame (41); A cross block (56) is arranged at one end of the irregular block (55) and is used to twist the limiting assembly (45).

8. The magnetic field deironing and deoxidizing device with filtering function according to claim 7, characterized in that, The sliding assembly (52) comprises: A sliding block (521) is inserted into the inner cavity of the positioning block (51); A tooth groove (522) is formed in the top of the sliding block (521); A screw rod (523) is rotatably connected to one end of the sliding block (521) and is threadedly connected to one end of the positioning block (51); A rotating block (524) is fixed to one end of the screw rod (523) and is arranged at the end of the positioning block (51).

9. The magnetic field deironing and deoxidizing device with filtering function according to claim 1, characterized in that, The inner cavity of the deaerator body (1) is provided with a heating mechanism (6), one end of the deaerator body (1) is provided with a manhole (7), and the heating mechanism (6) comprises: A first heating pipe (61) is arranged at the top of the inner cavity of the deaerator body (1); A second heating pipe (62) is fixed to the bottom of the first heating pipe (61); A clamping ring (63) is arranged on the outer wall of the first heating pipe (61) and is used to connect the first heating pipe (61) and the deaerator body (1).

10. The use of a magnetic field deironing and deoxygenizing device with filtering function according to any one of claims 1-9, characterized in that, The specific use steps comprise: Step 1: Insert the bearing block (31) into the inner cavity of the insertion plate (53), so that the inner cavity of the connecting groove (361) is opposite to the inner cavity of the water outlet pipe (2), and the sealing gasket (32) is tightly attached to the inner wall of the deaerator body (1); Step two: set the fixed frame (41) on the top of the bearing block (31), when welding the first guide frame (431) and the second guide frame (432) with the fixed frame (41), make its special-shaped block (55) clamped in the middle of the adjacent first guide frame (431) and the second guide frame (432), and slide the purification net (44) into the inner cavity of the fixed frame (41) through the connecting frame (42), make the bottom of the purification net (44) closely contact with the top of the bearing block (31), and make the cross block (56) clamped into the inner cavity of the limiting groove (452), close the connecting frame (42), and position limit the connecting frame (42) and the fixed frame (41) through the locking part; Step three: the operator manually rotates the rotating block (524), makes the screw rod (523) rotate, pushes the sliding block (521), makes the half gear (54) engaged with the gear slot (522) rotate, makes the transversely arranged special-shaped block (55) rotate by ninety degrees, makes one end of the special-shaped block (55) clamp the fixed frame (41), and the middle part of the special-shaped block (55) separate the first guide frame (431) and the second guide frame (432), at the same time, the cross block (56) drives the rotating column (451) to rotate, makes the clamping hook (453) can be clamped with the fixed ring (35), makes the water in the inner cavity of the deaerator body (1) flow through the first guide frame (431) and the second guide frame (432) to disperse water pressure, then enters the inner cavity of the purification net (44) to isolate impurities, and then the water passes through the permanent magnet purification assembly (36), so that the magnet metal impurities can be filtered by the magnetic tube (362) and the permanent magnet (364).

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