Multifunctional magnetic filter

Abstract

The utility model relates to the technical field of magnetic filters, in particular to a multifunctional magnetic filter, which is characterized in that a plurality of rib plates are fixedly arranged in the side wall of a lower barrel, L-shaped grooves are formed in the rib plates, a lower fixing seat and an upper fixing seat are placed in the L-shaped grooves, the upper end of the lower fixing seat and the lower end of the upper fixing seat are step-shaped, and the lower end of the lower fixing seat and the lower end of the upper fixing seat are connected with the rib plates. An inner filter screen and an outer filter screen are arranged between the lower fixing seat and the upper fixing seat, and the inner filter screen and the outer filter screen are positioned in the step-shaped interiors of the lower fixing seat and the upper fixing seat; the upper end of the upper cylinder body is in threaded connection with a magnetic rod assembly, and a first protective sleeve is fixedly connected into the upper fixing seat; the meshes of the outer filter screen are small, small impurities are filtered, meanwhile, the meshes of the inner filter screen and the outer filter screen are different in size, microbubbles dissolved in water can be broken and removed to the maximum extent, and all impurities are discharged by opening the blow-down valve after the magnetic bar assembly is pulled out. Of course, the inner and outer filter screens can be taken out and cleaned from the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of heating of HVAC and heat pumps, in particular to a multifunctional magnetic filter. Background Art

[0002] The magnetic filter is responsible for the water circulation in the heating system or heat pump system. It is the first coarse filtration device for the water used in the whole house. It can filter large particles such as sand, rust and casting residues in tap water. It is usually installed at the front end of the pipeline.

[0003] In order to ensure the normal use of the filter cartridge, it is necessary to clean the filter cartridge, and water will be introduced through the water outlet for backwashing to wash away the dirt on the filter mesh mouth of the filter cartridge, and the water mixed with dirt will eventually be discharged from the sewage outlet. However, the traditional pre-filter cannot guarantee the cleanliness of the water when water is introduced into the water outlet. The backwashing water itself is very likely to carry dirt. After the original dirt is washed away, new dirt will accumulate directly on the filter mesh mouth during the flow of backwashing water, resulting in the filter cartridge being unable to be thoroughly cleaned, and the flushing quality cannot be guaranteed. Utility Model Content

[0004] According to the problems raised in the background technology, the utility model provides a multifunctional magnetic filter to solve the problems. The utility model will be further described below.

[0005] A multifunctional magnetic filter comprises a cylinder as a main structure, wherein the cylinder comprises an upper cylinder and a lower cylinder connected by threads, a first connecting pipe is arranged on one side of the top of the lower cylinder, and an inner portion connected to the inner cavity of the cylinder is arranged in the first connecting pipe;

[0006] The end of the inner tube extends into the guide wall and cooperates with it;

[0007] A multi-way, a first connecting pipe is connected to the multi-way, and a flow guide wall is built in;

[0008] The two adjacent connection ends of the multi-channel are connected to each other and used as the water inlet end and the side outlet end respectively. The side outlet end is connected to the connecting pipe, and a return flow channel is formed between the guide wall and the inner wall of the multi-channel side outlet end;

[0009] A drain valve connected to the lower cylinder and communicated with the inner cavity of the cylinder;

[0010] A plurality of ribs are fixedly provided in the side wall of the lower cylinder, an L-shaped groove is provided inside the rib, a lower fixing seat and an upper fixing seat are placed inside the L-shaped groove, the upper end of the lower fixing seat and the lower end of the upper fixing seat are both stepped, an inner filter screen and an outer filter screen are provided between the lower fixing seat and the upper fixing seat, the inner filter screen and the outer filter screen are located inside the stepped shape of the lower fixing seat and the upper fixing seat; a magnetic rod assembly is threadedly connected to the upper end of the upper cylinder, and a first protective sleeve is fixedly connected inside the upper fixing seat;

[0011] Preferably, a second connecting tube is provided on one side of the upper fixing seat, and the second connecting tube is connected to the inner tube; the second connecting tube and the inner tube are on the same axis;

[0012] Preferably, the upper end of the lower fixing seat and the lower end of the upper fixing seat have the same structure;

[0013] Preferably, the lower fixing seat includes a circular ring disk, and a large diameter cylinder and a small diameter cylinder are arranged inside the circular ring disk; the diameter of the small diameter cylinder is smaller than that of the large diameter cylinder, a first groove is formed between the large diameter cylinder and the circular ring disk, and a second groove is formed between the small diameter cylinder and the large diameter cylinder, the first groove is used to place the outer filter screen, and the second groove is used to place the inner filter screen;

[0014] Preferably, a plurality of flow intervals are provided inside the second groove;

[0015] Preferably, the magnetic rod assembly includes a control head, the control head is provided with control components inside, and is externally connected to a second protective cover, the second protective cover has multiple permanent magnets built in, the permanent magnets are isolated by spacer rings, and any permanent magnet has two poles, the N pole and the S pole;

[0016] Preferably, the first protective cover is made of stainless steel;

[0017] Preferably, the first protective cover has an opening at the top for placing components such as permanent magnets. During installation, the top opening is fixedly connected to the upper fixing seat, and the lower end of the first protective cover is fixed in a small-diameter cylinder in the lower fixing seat.

[0018] Preferably, the inner filter and the outer filter are densely covered with sieve holes, the mesh number of the inner filter is smaller than the mesh number of the outer filter, and the top of the cylinder is connected with an exhaust valve;

[0019] Preferably, the upper fixing seat is made of POM material, the multi-pass is made of HPB- or PA-GF% material, and the bottom of the lower cylinder is V-shaped; the mesh number of the inner filter is 40 meshes, and the mesh number of the outer filter is 100 meshes;

[0020] Beneficial effects: Compared with the prior art, the utility model has a smaller mesh of the outer filter screen, which can filter smaller impurities. At the same time, the mesh sizes of the inner and outer filters are different, which can maximize the removal of microbubbles dissolved in the water. All impurities are discharged by opening the drain valve after the magnetic rod assembly is extracted; so as to achieve a clean, clean, and gas-free heating pipe. Of course, the inner and outer filters can be taken out and the filters can be cleaned from the outside. If the filters are damaged, they can be replaced more easily, which can ensure the cleanliness, cleanliness, and gas-freeness of the HVAC system or heat pump system, ensure the efficient operation of the system, avoid noise, save energy, and reduce power consumption; BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : Schematic diagram of the structure of the utility model;

[0022] Figure 2 : Schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 3 : Schematic diagram of the lower cylinder structure of the utility model;

[0024] Figure 4 : Schematic diagram of the combined structure of the outer filter screen, the inner filter screen, the upper fixing seat and the lower fixing seat of the utility model;

[0025] Figure 5 : Schematic diagram of the structure of the lower fixing seat of the utility model;

[0026] Figure 6 : Schematic diagram of the upper fixing seat structure of the utility model;

[0027] Figure 7 : Schematic diagram of the structure of the utility model at A;

[0028] Figure 8 : The relationship curve between the puncture and release of microbubbles of the filter screen and the pipeline pressure, water temperature and water quality of the utility model;

[0029] In the figure: cylinder 1, lower cylinder 101, upper cylinder 102, first connecting pipe 103, inner pipe 104, connecting cap 2, multi-pass 3, guide wall 301, water inlet end 302, side outlet end 303, return channel 304, rib plate 4, L-shaped groove 5, lower fixing seat 6, annular disk 601, large diameter cylinder 602, small diameter cylinder 603, first groove 604, second groove 605, flow interval 606, upper fixing seat 7, first protective cover 8, exhaust valve 9, outer filter 10, inner filter 11, drain valve 12, second connecting pipe 13, magnetic rod assembly 14, control head 15, second protective cover 16, permanent magnet 17, spacer ring 18; DETAILED DESCRIPTION

[0030] Next, combine with Figure 1-7 A specific embodiment of the utility model is described in detail.

[0031] A multifunctional magnetic filter is used to filter magnetic and non-magnetic impurities in a fluid, comprising a cylinder 1 as a main structure, the cylinder 1 comprising an upper cylinder 102 and a lower cylinder 101 connected by threads, a first connecting pipe 103 is arranged on one side of the top of the lower cylinder 101, the first connecting pipe 103 is threadedly connected to a connecting end of a multi-pass 3 pipe fitting through a connecting cap 2, a guide wall 301 is formed on the inner wall of the multi-pass 3, the guide wall 301 connects two adjacent connecting ends of the multi-pass, respectively serving as a water inlet end and a side outlet end; the first connecting pipe 103 is connected to the side outlet On the end, an inner tube 104 connected to the inner cavity of the cylinder is coaxially built, and the diameter of the inner tube 104 is equal to the inner diameter of the guide wall 301. When the first connecting pipe 103 is connected to the side outlet end 303, the end of the inner tube 104 extends into the guide wall 301 and cooperates therewith to form a fluid passage from the water inlet end 302 to the inner cavity of the cylinder 1, and guides the fluid into the cylinder for impurity filtration; a return channel 304 is formed between the guide wall 301 and the inner wall of the side outlet end of the multi-pass 3, and the filtered fluid flows out of the magnetic filter and the multi-pass through the return channel 304, and finally flows back to the outside of the cylinder;

[0032] A plurality of ribs 4 are fixedly provided in the side wall of the lower cylinder 101, an L-shaped groove 5 is provided inside the ribs 4, a lower fixing seat 6 and an upper fixing seat 7 are placed inside the L-shaped groove 5, the upper end of the lower fixing seat 6 and the lower end of the upper fixing seat 7 are both stepped, an inner filter screen 11 and an outer filter screen 10 are provided between the lower fixing seat 6 and the upper fixing seat 7, the inner filter screen 11 and the outer filter screen 10 are located inside the stepped lower fixing seat 6 and the upper fixing seat 7, so as to limit the filter screen in the vertical direction;

[0033] The inner filter 11 and the outer filter 10 are densely covered with mesh holes for intercepting impurities. It should be noted that the mesh number of the inner filter 11 is smaller than that of the outer filter 10. Specifically, the mesh number of the inner filter 11 is 40 meshes, and the mesh number of the outer filter is 100 meshes. The fluid impacts the filter, and the fluid flows out of the filter through the mesh holes, while the impurities entrained are trapped in the filter. A drain valve 12 is connected to the lower side of the cylinder 1. The drain valve 12 is connected to the internal space of the inner filter 11 and the outer filter 10. The impurities intercepted by the filter enter and accumulate at the drain valve 12 under the flushing of the fluid. The drain valve can be opened regularly for sewage treatment. The volume of impurities that can be trapped by the filter is related to the aperture of the sieve hole. In practice, there are a small amount of magnetic impurities such as iron filings in the impurities, which are characterized by small volume and cannot be filtered by reducing the aperture of the sieve hole. At the same time, the function of the sieve hole is to puncture the bubbles. The sieve hole and the bubble work to destroy the surface stress of the bubble membrane. After the bubble bursts, the gas in the inner cavity is released, and the gas accumulates at the top of the cylinder and can be discharged through the exhaust valve provided.

[0034] It should be noted that the amount of air dissolved in water depends on the pressure and temperature of the water. Figure 8 It can be seen that the amount of air dissolved in 1 cubic meter of water is related to the water temperature. The air dissolved in the water injection or replenishment system is released when the system water is heated. For example, in a 1000 liter water system (about 100,000kcal / h system), when the water is heated from 20℃ to 80℃ at a constant pressure of 2bar, about 15 liters of air are released. These air appear in the system in the form of microbubbles. Through this utility model filter, 12 liters of air can be punctured and released, which is 50% higher than the original traditional effect. In order to achieve a clean, clear, and airless heating pipe.

[0035] As mentioned above, the double-layer filter has a mesh size of 1.2MM for the outer filter, which initially filters out impurities larger than this size. The mesh size of the inner filter is 0.1MM to further filter out impurities larger than this size. If the first two filters do not filter out smaller impurities. For example, fine impurities such as rust powder are adsorbed by the middle magnetic bar. The three-layer interception of solid impurities not only filters out impurities but also does not affect the flow. Through experiments under the same environment, the filtering effect of this utility model is 30% better than that of the traditional one, ensuring the smooth flow of water in the pipeline.

[0036] The upper end of the lower fixing seat 6 and the lower end of the upper fixing seat 7 have the same structure; specifically, the lower fixing seat 6 includes a circular ring disk 601, and a large-diameter cylinder 602 and a small-diameter cylinder 603 are arranged inside the circular ring disk 601; the diameter of the small-diameter cylinder 603 is smaller than that of the large-diameter cylinder 602, a first groove 604 is formed between the large-diameter cylinder 602 and the circular ring disk 601, and a second groove 605 is formed between the small-diameter cylinder 603 and the large-diameter cylinder 602, the first groove 604 is used to place the outer filter screen 10, and the second groove 605 is used to place the inner filter screen 11;

[0037] A plurality of flow intervals 606 are provided inside the second groove 605, so that the fluid can also pass through the flow intervals 606 and the filter screen and then flow out of the filter screen;

[0038] A second connecting pipe 13 is provided on one side of the upper fixing seat 7, and the second connecting pipe 13 is connected to the inner pipe 104; so that the incoming fluid enters the middle of the inner filter screen 11 from the second connecting pipe 13, and then the impurities inside are filtered; it should be noted that the second connecting pipe 13 is limited by the rib plate 4 inside the lower cylinder 101, and the groove at the bottom of the rib plate 4 makes the second connecting pipe 13 and the inner pipe 104 on the same axis;

[0039] The impurities trapped by the filter enter and accumulate at the drain valve 12 under the scouring of the fluid. The drain valve can be opened regularly for sewage treatment. The volume of impurities that can be trapped by the filter is related to the aperture of the sieve. In practice, there are a small amount of magnetic impurities such as iron filings in the impurities, which are characterized by small volume and cannot be filtered by reducing the aperture of the sieve. In this embodiment, the magnetic impurities are adsorbed and removed by the magnetic rod assembly 14. The specific scheme is as follows: the magnetic rod assembly 14 is threadedly connected to the upper end of the upper cylinder 102, the first protective cover 8 is fixedly connected inside the upper fixed seat 7, the magnetic rod assembly 14 includes a control head 15, the control head 15 is provided with control components inside, and is externally connected with a second protective cover 16, the second protective cover 16 has a plurality of permanent magnets 17 built therein, and the permanent magnets 17 are isolated by a spacer ring 18, and any permanent magnet 17 has two poles, the N pole and the S pole. According to common sense, the magnetic intensity at the magnetic pole is the largest, and a magnetic field with relatively uniform magnetic intensity is formed in the filter screen through the plurality of spaced permanent magnets 17, thereby increasing the adsorption capacity of magnetic field impurities in the fluid, and the magnetic impurities entrained in the fluid are magnetized and adsorbed on the first protective cover 8; the magnetic field of the permanent magnet 17 exists, and the fluid cannot wash away the magnetic field impurities attached thereto;

[0040] It should be noted that, in the prior art, the first protective cover 8 is a copper cover. Copper has the property of not being magnetized, and the magnetic field can cover the inner filter. More importantly, in the HVAC fluid, copper ions have a certain bactericidal effect, which prevents bacteria from producing antibodies and breeding bacteria. Therefore, the prior art uses copper or copper alloys. In this embodiment, the first protective cover 8 is made of stainless steel, which is different from the existing copper alloy. According to common sense, stainless steel has lower cost and higher strength than copper. When the utility model uses stainless steel, it is not only not easy to rust and corrode in the fluid, but also because of its high strength, the first protective cover made of stainless steel can ensure sufficient strength;

[0041] The first protective cover 8 has an opening at the top for placing permanent magnets and other components. When installed, the opening at the top is fixedly connected to the upper fixing seat 7. Furthermore, the lower end of the first protective cover 8 is fixed in the small-diameter cylinder 603 in the lower fixing seat 6 to limit the first protective cover 8 at both ends. After the fluid enters the second connecting tube 13 from the inner tube 104 and then rushes into the inner cavity of the cylinder, it directly acts on the first protective cover 8. The two ends of the first protective cover 8 have limits to ensure its stability against fluid impact.

[0042] The top of the cylinder 1 is connected to an exhaust valve 9 for exhausting the gas in the air cavity out of the cylinder;

[0043] It should be noted that the upper fixing seat 7 is made of POM material, the multi-pass 3 is made of HPB58-3 or PA66-GF30% material, and the bottom of the lower cylinder 101 is V-shaped;

[0044] It should be further explained that the lower fixing seat 6 and the upper fixing seat 7 as well as the inner and outer filter screens are considered as a whole, the upper end is closed, and the fluid flowing through here is divided into two parts. The gas rises to the top of the cylinder due to its light density, and all the other fluids change direction and flow to the lower end, filtering impurities of different sizes at multiple levels and blocking the microbubbles in the dissolved water at multiple levels;

[0045] Of course, the fluid in the HVAC system enters the filter. Since the lower fixing seat 6 and the upper fixing seat 7 as well as the inner and outer filter screens are considered as a whole, the upper part is closed, and all the fluids flowing into the filter screen change direction. Due to its low density, the air will run up to the top of the filling body. Water, impurities and microbubbles dissolved in the water flow to the lower end. The inner filter screen 11 has a larger mesh and performs preliminary filtration of larger impurities. The outer filter screen 10 has a smaller mesh and filters smaller impurities. At the same time, the mesh sizes of the inner and outer filter screens are different, which can maximize the removal of microbubbles dissolved in the water. After the magnetic rod assembly is extracted, all impurities are discharged by opening the drain valve; so as to achieve a clean, clear, and airless heating pipe;

[0046] When it is necessary to clean the inner and outer filter screens, the magnetic bar assembly 14 is rotated to remove the magnetic bar assembly from the first protective cover 8, and the magnetic impurities attached to the first protective cover 8 flow into the bottom of the lower shell, and then the drain valve is opened to clean the impurities; at this time, the upper shell is rotated open, and then the upper fixing seat 7 is taken out from the inside of the shell, and then the outer and inner filter screens are taken out; cleaning is performed, and after cleaning is completed, the installation sequence can be installed;

[0047] Compared with the prior art, the utility model has a smaller mesh of the outer filter screen, which can filter smaller impurities. At the same time, the mesh sizes of the inner and outer filters are different, which can maximize the removal of microbubbles dissolved in the water. All impurities are discharged by opening the drain valve after the magnetic rod assembly is extracted; in order to achieve a clean, clean, and gas-free heating pipe, of course, the inner and outer filters can be taken out and the filters can be cleaned from the outside, and if the filters are damaged, they can be replaced more easily, which can ensure the cleanliness, cleanliness, and gas-freeness of the HVAC system or heat pump system, ensure the efficient operation of the system, avoid noise, save energy, and reduce power consumption;

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multifunctional magnetic filter, comprising a cylinder (1) as a main structure, the cylinder (1) comprising an upper cylinder (102) and a lower cylinder (101) connected by threads, a first connecting pipe (103) being arranged on one side of the top of the lower cylinder (101), an inner portion of the first connecting pipe (103) being arranged in communication with the inner cavity of the cylinder (1); The end of the inner tube (104) extends into the flow guide wall (301) and cooperates therewith; A multi-way (3), a first connecting pipe (103) connected to the multi-way (3), and a flow guide wall (301) built in; The two adjacent connection ends of the multi-channel (3) are connected to each other and serve as the water inlet end (302) and the side outlet end (303) respectively; the side outlet end is connected to the connecting pipe; and a return flow channel (304) is formed between the guide wall and the inner wall of the multi-channel side outlet end; A sewage valve (12) is connected to the lower cylinder and communicates with the inner cavity of the cylinder; Features: A plurality of ribs (4) are fixedly provided inside the side wall of the lower cylinder (101), an L-shaped groove (5) is provided inside the ribs (4), a lower fixing seat (6) and an upper fixing seat (7) are placed inside the L-shaped groove (5), the upper end of the lower fixing seat (6) and the lower end of the upper fixing seat (7) are both stepped, an inner filter screen (11) and an outer filter screen (10) are provided between the lower fixing seat (6) and the upper fixing seat (7), the inner filter screen (11) and the outer filter screen (10) are located inside the stepped portions of the lower fixing seat (6) and the upper fixing seat (7); a magnetic rod assembly (14) is threadedly connected to the upper end of the upper cylinder (102), and a first protective sleeve (8) is fixedly connected inside the upper fixing seat (7).

2. A multifunctional magnetic filter according to claim 1, characterized in that: A second connecting tube (13) is provided on one side of the upper fixing seat (7), and the second connecting tube (13) is connected to the inner tube (104); the second connecting tube (13) and the inner tube (104) are located on the same axis.

3. A multifunctional magnetic filter according to claim 1, characterized in that: The upper end of the lower fixing seat (6) and the lower end of the upper fixing seat (7) have the same structure.

4. A multifunctional magnetic filter according to claim 3, characterized in that: The lower fixing seat (6) includes a circular ring disk (601), and a large-diameter cylinder (602) and a small-diameter cylinder (603) are arranged inside the circular ring disk (601); the diameter of the small-diameter cylinder (603) is smaller than that of the large-diameter cylinder (602); a first groove (604) is formed between the large-diameter cylinder (602) and the circular ring disk (601), and a second groove (605) is formed between the small-diameter cylinder (603) and the large-diameter cylinder (602); the first groove (604) is used to place the outer filter screen (10), and the second groove (605) is used to place the inner filter screen (11).

5. A multifunctional magnetic filter according to claim 4, characterized in that: A plurality of flow intervals (606) are provided inside the second groove (605).

6. A multifunctional magnetic filter according to claim 1, characterized in that: The magnetic bar assembly (14) comprises a control head (15), wherein control components are arranged inside the control head (15), and a second protective cover (16) is connected to the outside. The second protective cover (16) has a plurality of permanent magnets (17) built therein, and the permanent magnets (17) are isolated by spacer rings (18). Any permanent magnet (17) has two poles, an N pole and an S pole.

7. A multifunctional magnetic filter according to claim 1, characterized in that: The first protective sleeve (8) is made of stainless steel.

8. A multifunctional magnetic filter according to claim 7, characterized in that: The first protective cover (8) has an opening at the top for accommodating the permanent magnet. During installation, the opening at the top is fixedly connected to the upper fixing seat (7), and the lower end of the first protective cover (8) is fixed in a small-diameter cylinder (603) in the lower fixing seat (6).

9. A multifunctional magnetic filter according to claim 1, characterized in that: The inner filter (11) and the outer filter (10) are densely covered with sieve holes, the number of meshes of the inner filter (11) is smaller than the number of meshes of the outer filter (10), and the top of the cylinder (1) is connected to an exhaust valve (9).

10. A multifunctional magnetic filter according to claim 9, characterized in that: The upper fixing seat (7) is made of POM material, the multi-pass (3) is made of HPB58-3 or PA66-GF30% material, and the bottom of the lower cylinder (101) is V-shaped; the mesh number of the inner filter (11) is 40 meshes, and the mesh number of the outer filter (10) is 100 meshes.

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