Iron remover with oil-immersed water cooling plate type heat exchanger structure

Abstract

The utility model discloses an iron remover with an oil immersion water cooling plate type heat exchanger structure, which relates to the technical field of iron removers and comprises a shell, an annular electromagnetic cavity is arranged in the shell, a magnet exciting coil is mounted in the annular electromagnetic cavity, an upper magnet yoke is arranged above the magnet exciting coil, and a lower magnet yoke is arranged below the magnet exciting coil. Cooling oil is contained in the annular electromagnetic cavity, and the annular electromagnetic cavity is provided with an oil outlet and an oil inlet; a heat exchanger used for cooling the cooling oil is arranged on the side portion of the shell 1 and provided with a thermal medium inlet and a thermal medium outlet, the thermal medium inlet is communicated with the oil outlet through an oil pipe, the thermal medium outlet is communicated with the oil inlet through an oil pipe, an adding pump is installed on the oil pipe communicated with the thermal medium inlet, and therefore an internal and external circulation cooling loop is formed for the cooling oil. Cooling oil in the de-ironing separator is cooled in a water cooling mode, the situation that the temperature of the magnet exciting coil is too high, and magnetic force is affected is prevented, and the de-ironing separator is simple in structure, free of noise, high in cooling speed and good in cooling effect.

Description

Technical Field

[0001] The utility model relates to the technical field of iron removers, in particular to an iron remover with the structure of an oil-immersed water-cooled plate heat exchanger. Background Art

[0002] An iron remover is a device that can generate a strong magnetic field attraction force, which can remove ferromagnetic impurities mixed in materials; there is a coil in the iron remover, and a magnetic field is generated by passing an electric current through the coil. After the coil is energized, heat will be generated, resulting in an increase in the temperature of the coil, and then the magnetic force of the magnetic field will also decrease significantly, affecting the service performance.

[0003] In order to cool the coil and ensure its service performance, the invention patent with the publication number of CN1895789A discloses a forced oil circulation air-cooled electromagnetic iron remover, which has a housing and an iron core arranged in the housing. A magnetic yoke is fixed at the upper end of the iron core, and a magnetic pole plate is fixed at the lower end. The lower end of the housing is connected with a bottom plate. A coil is wound around the outer periphery of the iron core. A cooling medium is filled in the inner cavity of the housing. A condenser is installed on the magnetic yoke or the side of the housing. Both ends of the condenser housing are respectively provided with an oil collecting chamber and an oil return chamber. A condensing pipe with heat dissipation fins is connected between the two chambers. A fan is installed on the condenser housing. The oil collecting chamber is connected with an oil collecting pipe communicating with the upper part of the inner cavity of the housing, and the oil return chamber is connected with an oil return pipe communicating with the lower part of the inner cavity of the housing. An oil pump is connected to the oil return pipe. The invention helps to improve the safety, reliability and cooling capacity of the electromagnetic iron remover and has a wide application prospect; the invention uses a fan to cool the condensing pipe, but the fan has a large noise and an unclear cooling effect during the blowing process, and is not suitable for an open space with more dust. Content of the Utility Model

[0004] The purpose of the utility model is to provide an iron remover with the structure of an oil-immersed water-cooled plate heat exchanger, which cools the cooling oil in the iron remover by means of water cooling to prevent the temperature of the excitation coil from being too high and affecting the magnetic force. The structure is simple, there is no noise, the cooling speed is fast, and the cooling effect is good.

[0005] The utility model includes a housing, an annular electromagnetic cavity is arranged in the housing, an excitation coil is installed in the annular electromagnetic cavity, an upper magnetic yoke is arranged above the excitation coil, and a lower magnetic yoke is arranged below the excitation coil; cooling oil is filled in the annular electromagnetic cavity, and an oil outlet and an oil inlet are respectively arranged on the annular electromagnetic cavity; a heat exchanger for cooling the cooling oil is arranged on the side of the housing. The heat exchanger is provided with a heat medium inlet and a heat medium outlet. The heat medium inlet is communicated with the oil outlet through an oil pipe, and the heat medium outlet is communicated with the oil inlet through an oil pipe. An increasing pump is installed on the oil pipe communicating with the heat medium inlet, so as to form an internal and external circulation cooling circuit for the cooling oil.

[0006] Preferably, the heat exchanger further includes a cold medium inlet and a cold medium outlet. The cold medium inlet and the cold medium outlet are respectively connected to the tap water pipe through water pipes. A circulation pump is installed on the water pipe connecting the cold medium inlet. The heat exchanger dissipates heat by means of water cooling.

[0007] Preferably, the heat exchanger is a plate heat exchanger. The heat exchanger is formed by overlapping and pressing a number of corrugated thin plates at a certain interval. The periphery of the thin plates is sealed by gaskets. The four corner holes of the thin plates and the gaskets form the fluid distribution pipes and the collecting pipes, so that the hot and cold fluids flow in the flow channels on both sides of each thin plate respectively.

[0008] Preferably, both the hot medium inlet and the hot medium outlet are connected to the oil pipe through flanges.

[0009] Preferably, an oil-resistant rubber gasket is provided at the flange connection.

[0010] Preferably, the cooling oil is an insulating high-temperature-resistant oil, and the excitation coil is completely immersed in the cooling oil.

[0011] Preferably, a magnetic separation cylinder penetrating the upper and lower ends of the outer shell is provided in the middle of the outer shell. A feed inlet is fixedly connected to the upper part of the magnetic separation cylinder, and a magnetic conduction net is fixedly connected to the inner side of the magnetic separation cylinder.

[0012] In summary, the present utility model has the following beneficial effects:

[0013] 1. A high-temperature-resistant insulating cooling oil is installed in the iron remover, and the temperature of the coil in the iron remover is reduced by means of external circulation and water cooling, preventing the temperature of the excitation coil from being too high and affecting the magnetic force. Its structure is simple, there is no noise, the cooling speed is fast, the cooling effect is good, and it is applicable to various iron remover structures;

[0014] 2. The external heat exchanger adopts a plate heat exchanger, which has the advantages of compact and light structure, large heat exchange area, high heat exchange efficiency, small floor area, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the iron remover with the oil-immersed water-cooled plate heat exchanger structure of the present utility model;

[0016] Figure 2 is a schematic connection diagram of the heat exchanger and the pipeline;

[0017] Figure 3 is the front view of the heat exchanger;

[0018] Figure 4 is the side view of the heat exchanger;

[0019] Figure 5 is the exploded view of the heat exchanger.

[0020] In the figure: 1. Outer shell; 2. Annular electromagnetic cavity; 3. Excitation coil; 4. Upper magnetic yoke; 5. Lower magnetic yoke; 6. Oil outlet; 7. Oil inlet; 8. Heat exchanger; 9. Hot medium inlet; 10. Hot medium outlet; 11. Oil pipe; 12. Booster pump; 13. Cold medium inlet; 14. Cold medium outlet; 15. Water pipe; 16. Circulation pump; 17. Thin plate; 18. Gasket; 19. Flange; 20. Oil-resistant rubber pad; 21. Magnetic separation cylinder; 22. Feed inlet; 23. Magnetic conductive net; 24. Fixed clamping plate; 25. Movable clamping plate; 26. Compression bolt; 27. Upper guide rod; 28. Lower guide rod. Specific embodiments

[0021] The present utility model will be further described below in conjunction with the accompanying drawings.

[0022] The orientations referred to in this specification are based on the orientations when the iron remover of the oil-immersed water-cooled plate heat exchanger structure of the present utility model is working properly, without limiting its orientations during storage and transportation, only representing relative positional relationships and not absolute positional relationships.

[0023] As Figures 1 to 5 As commonly shown, the iron remover of the oil-immersed water-cooled plate heat exchanger 8 structure includes an outer shell 1. An annular electromagnetic cavity 2 is provided inside the outer shell 1. An excitation coil 3 is installed inside the annular electromagnetic cavity 2. An upper magnetic yoke 4 is provided above the excitation coil 3, and a lower magnetic yoke 5 is provided below the excitation coil 3. A magnetic separation cylinder 21 penetrating the upper and lower ends of the outer shell 1 is provided in the middle of the outer shell 1. A feed inlet 22 is fixedly connected to the upper part of the magnetic separation cylinder 21, and a magnetic conductive net 23 is fixedly connected to the inner side of the magnetic separation cylinder 21. Materials are added into the iron remover through the feed inlet 22, and the materials slide down along the magnetic conductive net 23 on the inner side of the magnetic separation cylinder 21 under the action of gravity, so as to adsorb iron filings on the magnetic conductive net 23 pieces with strong magnetic fields inside the magnetic separation cylinder 21, achieving the effect of iron removal. Since the structure and working principle of the iron remover are relatively mature existing technologies, and the internal structure of the iron remover is not the main improvement point of the present utility model, the rest of its internal components will not be described one by one.

[0024] Cooling oil is contained in the annular electromagnetic cavity 2, and an oil outlet 6 and an oil inlet 7 are respectively provided on the annular electromagnetic cavity 2. The cooling oil is insulating and high-temperature resistant oil. Preferably, in this solution, the cooling oil is transformer oil, which has the characteristics of insulation and high-temperature resistance. The excitation coil 3 is completely immersed in the cooling oil, and the role of the cooling oil is to cool the excitation coil 3.

[0025] A heat exchanger 8 for cooling the cooling oil is provided on the side of the outer shell 1. The heat exchanger 8 is provided with a hot medium inlet 9 and a hot medium outlet 10. The hot medium inlet 9 is connected to the oil outlet 6 through an oil pipe 11, and the hot medium outlet 10 is connected to the oil inlet 7 through an oil pipe 11. A booster pump 12 is installed on the oil pipe 11 connecting the hot medium inlet 9, so as to form an internal and external circulation cooling circuit for the cooling oil.

[0026] The heat exchanger 8 further includes a cold medium inlet 13 and a cold medium outlet 14. The cold medium inlet 13 and the cold medium outlet 14 are respectively connected to the tap water pipe through a water pipe 15. A circulation pump 16 is installed on the water pipe 15 connecting the cold medium inlet 13. The heat exchanger 8 dissipates heat by means of water cooling; the circulating water pump injects tap water from the cold medium inlet 13 into the heat exchanger 8, circulates inside the heat exchanger 8, cools the cooling oil, and then comes out from the cold medium outlet 14.

[0027] Further, the heat exchanger 8 is a plate heat exchanger 8. The heat exchanger 8 is formed by overlapping and pressing a number of thin plates 17 stamped with corrugations at a certain interval with a frame and a compression screw. The corrugation directions on adjacent thin plates 17 are opposite. The concave and convex ridge lines between the two thin plates 17 form staggered contact points. After the contact points are combined by vacuum welding, a high-pressure resistant staggered flow structure of the plate heat exchanger 8 is formed. These staggered flow structures cause strong turbulence of the hot and cold fluids inside the plate heat exchanger 8 to achieve a high heat exchange effect; there are four corner holes on the thin plate 17 for the two liquids for heat transfer to pass through; the metal thin plate 17 is installed in a frame with a fixed clamping plate 24 and a movable clamping plate 25 on one side and is clamped with a compression bolt 26; a sealing gasket 18 is installed on the thin plate 17 to seal the fluid passage and guide the fluid to flow into their respective flow channels alternately to form heat exchange; the four corner holes of the thin plate 17 and the gasket 18 form the distribution pipe and the collecting pipe of the fluid, and at the same time reasonably separate the hot and cold fluids so that they flow in the flow channels on both sides of each thin plate 17 respectively and conduct heat exchange through the thin plate 17; the flow rate, physical properties, pressure drop and temperature difference of the fluid determine the number and size of the thin plates 17; the corrugated thin plate 17 not only improves the degree of turbulence but also forms many support points enough to withstand the pressure difference between the media; the metal plate and the movable plate clamping plate are suspended on the upper guide rod 27 and positioned by the lower guide rod 28, and the rod ends are fixed on the support columns.

[0028] Further, the hot medium inlet 9, the hot medium outlet 10, the cold medium inlet 13 and the cold medium outlet 14 are all connected to the oil pipe 11, the water pipe 15 or the booster pump 12, the circulation pump 16 through flanges 19, making disassembly and maintenance more convenient; rubber gaskets are provided at the flange 19 connection parts of the cold medium inlet 13 and the cold medium outlet 14, and oil-resistant rubber gaskets 20 are provided at the flange 19 connection parts of the hot medium inlet 9 and the hot medium outlet 10. The rubber gaskets and the oil-resistant rubber gaskets 20 can increase the sealing performance of the flange 19 connection.

[0029] Certainly, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. Iron remover with oil-immersed water-cooled plate heat exchanger structure, characterized by: The invention comprises a housing (1), wherein an annular electromagnetic cavity (2) is provided in the housing (1), an excitation coil (3) is installed in the annular electromagnetic cavity (2), an upper magnetic yoke (4) is provided above the excitation coil (3), and a lower magnetic yoke (5) is provided below the excitation coil (3); cooling oil is filled in the annular electromagnetic cavity (2), and the annular electromagnetic cavity (2) is respectively provided with an oil outlet (6) and an oil inlet (7); a heat exchanger (8) for cooling the cooling oil is provided on the side of the housing (1), and the heat exchanger (8) is provided with a heat medium inlet (9) and a heat medium outlet (10), and the heat medium inlet (9) is connected to the oil pipe (11) ) is connected to the oil outlet (6), the hot medium outlet (10) is connected to the oil inlet (7) through an oil pipe (11), and an increasing pump is installed on the oil pipe (11) connected to the hot medium inlet (9), so as to form an internal and external circulation cooling circuit for the cooling oil; the heat exchanger (8) also includes a cold medium inlet (13) and a cold medium outlet (14), and the cold medium inlet (13) and the cold medium outlet (14) are respectively connected to the tap water pipe through a water pipe (15), and a circulation pump (16) is installed on the water pipe (15) connected to the cold medium inlet (13), and the heat exchanger (8) dissipates heat by water cooling.

2. The iron remover of the oil-immersed water-cooled plate heat exchanger structure according to claim 1, characterized in that: The heat exchanger (8) is a plate heat exchanger (8), which is formed by overlapping and pressing a plurality of corrugated thin plates (17) at a certain interval. The four sides of the thin plates (17) are sealed by gaskets (18). The four corner holes of the thin plates (17) and the gaskets (18) form distribution pipes and collecting pipes for the fluid, so that the cold and hot fluids flow in the flow channels on both sides of each thin plate (17) respectively.

3. The iron remover of the oil-immersed water-cooled plate heat exchanger structure according to claim 1, characterized in that: The heat medium inlet (9) and the heat medium outlet (10) are both connected to the oil pipe (11) via a flange (19).

4. The iron remover of the oil-immersed water-cooled plate heat exchanger structure according to claim 3, characterized in that: An oil-resistant rubber pad (20) is provided at the connection point of the flange (19).

5. The iron remover of the oil-immersed water-cooled plate heat exchanger structure according to claim 1, characterized in that: The cooling oil is insulating high temperature resistant oil, and the excitation coil (3) is completely immersed in the cooling oil.

6. The iron remover of the oil-immersed water-cooled plate heat exchanger structure according to claim 1, characterized in that: A magnetic separation cylinder (21) penetrating the upper and lower ends of the shell (1) is provided in the middle of the shell (1); a feed port (22) is fixedly connected to the upper portion of the magnetic separation cylinder (21); and a magnetic conductive net (23) is fixedly connected to the inner side of the magnetic separation cylinder (21).

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