Centrifugal oil-water separation apparatus

Abstract

The present invention relates to the technical field of centrifuges. Disclosed is a centrifugal oil-water separation apparatus, comprising a housing and a centrifugal chamber, wherein the centrifugal chamber is arranged inside the housing; a refrigeration module is disposed at an upper end of an outer side of the housing and a microwave module is disposed at a lower lateral side of the housing, or the microwave module is disposed on the upper end and the refrigeration module is disposed at the lower lateral side; a cold end at the bottom of the refrigeration module is in contact with the centrifugal chamber; a microwave emission module is disposed inside the microwave module; the refrigeration module is in contact with the centrifugal chamber to cool same, such that an oil-water mixture inside is solidified; and when the centrifugal chamber is accelerated to a separation speed by means of an electric motor, microwaves are emitted by means of the microwave emission module in the microwave module, and in this case, the centrifugal chamber is in a rotating state, such that the entire centrifugal chamber can be uniformly affected by microwave heating, and the solidified oil-water mixture inside is molten, thereby avoiding incomplete separation caused by an oil liquid inside the centrifugal chamber emulsifying due to a water pressure and under a shearing force when an initial rotation speed is not reached.

Description

Centrifugal oil-water separator Technical Field

[0001] The present invention relates to the technical field of centrifuges, in particular to a centrifugal oil-water separator. Background Art

[0002] Oil-water mixtures, when directly discharged or leaked into the environment, can cause serious pollution to soil, water, and organisms. By separating oil from water, the grease and pollutants can be removed, reducing the impact on the environment and protecting the health of the ecosystem.

[0003] Many countries and regions have environmental protection regulations requiring businesses and factories to treat their wastewater. By separating oil from water, you can meet discharge standards and comply with laws and regulations, avoiding legal sanctions for illegal discharges.

[0004] In many industrial processes, wastewater contains valuable oils and other chemicals. By separating oil from water, these valuable substances can be effectively recovered and reused, reducing costs and reducing dependence on natural resources. Oil-water mixtures can cause blockage, corrosion, or damage to some equipment and processes. Separating oil from water can maintain the normal operation of equipment, extend its service life, and improve production efficiency and quality.

[0005] Oil-water separation is very important in industry, but the centrifuge for oil-water separation is relatively complex. At the same time, during the separation process, the initial rotation speed may be insufficient, causing the oil in the mixture to emulsify due to the water pressure and the shear force caused by the rotation. The occurrence of emulsification will hinder the stratification of oil and water, because the formed emulsion is difficult to separate, which may be undesirable for some specific industrial processes or treatment processes, so the occurrence of emulsification needs to be avoided. Technical issues

[0006] (1) Technical problems solved: In response to the shortcomings of the existing technology, the present invention provides a centrifugal oil-water separator with the advantages of simple structure and anti-emulsification, which solves the problem of oil emulsification during the separation process. Technical Solutions

[0007] (II) Technical Solution: To achieve the above-mentioned purpose of simple structure and prevention of emulsification, the present invention provides the following technical solution: a centrifugal oil-water separator, comprising a housing and a centrifugal chamber, wherein the centrifugal chamber is disposed within the housing, a rotating shaft is provided on one side of the centrifugal chamber and extends through the normally closed end of the housing, and a water inlet is provided on the other side and faces the openable end of the housing;

[0008] A motor is provided next to the rotating shaft and is connected to be driven by the motor for rotation. A water outlet connected to the water outlet channel is provided below the rotating shaft. A refrigeration module is provided at the upper end of the outer side of the shell and a microwave module is provided at the lower side, or a microwave module is provided at the upper end and a refrigeration module is provided at the lower side.

[0009] The cold end of the bottom of the refrigeration module contacts the centrifugal chamber, a microwave transmitting module is provided inside the microwave module, and a transparent plate is provided at the connection between the shell and the microwave module, so that the microwaves emitted by the microwave transmitting module can pass through the transparent plate and enter the shell to perform microwave heating on the centrifugal chamber;

[0010] The refrigeration module cools the centrifugal chamber by contact with it, causing the oil-water mixture inside to solidify. When the centrifugal chamber is accelerated to the separation speed by the motor, microwaves are emitted by the microwave emission module in the microwave module. Because the centrifugal chamber is in a rotating state at this time, the entire chamber can be evenly affected by microwave heating, melting the solidified oil-water mixture inside, avoiding the situation where the internal oil is emulsified due to water pressure and shear force when the initial speed is not reached, resulting in incomplete separation.

[0011] Preferably, a metal protective shell is provided on the outside of the microwave emission module, covering the microwave emission module and the transparent plate inside.

[0012] Preferably, controllable valve ports are provided at the upper and lower vertices on both sides of the centrifugal chamber and are connected to the water outlet channel, and a detection module for detecting whether there is water is provided on the edge of the valve port.

[0013] Preferably, the detection module is specifically an energized detection module that is energized when in contact with water and de-energized when in contact with oil, or an infrared detection module that can detect the refractive index of infrared rays in liquid.

[0014] Preferably, the water outlet channel is provided at the bottom of the shell, is communicated with each valve port, and finally leads to the water outlet.

[0015] Preferably, the outer layer of the centrifugal chamber is wrapped with a magnetic isolation layer, and a magnetic thermal layer and an electromagnetic layer are provided on the outer side of the magnetic isolation layer.

[0016] Preferably, the magnetic isolation layer and the magnetocaloric layer are tightly connected to the centrifugal chamber and can rotate therewith, and the electromagnetic layer is fixed inside the shell and can form a circular magnetic field to affect the rotating magnetocaloric layer;

[0017] When the magnetocaloric material in the magnetocaloric layer is affected by the magnetic field, magnetic domain alignment will form inside, which limits the degree of freedom, resulting in a decrease in entropy and heat capacity, causing heat to be released and the temperature to rise. When the magnetic field is eliminated, the direction of the magnetic domain returns to a disordered state, making it able to accommodate more heat, which will absorb the heat, drop the temperature, achieve heating and cooling, and solidify and melt the oil-liquid mixture.

[0018] Preferably, a gap is provided at the lower end of the electromagnetic layer so as not to affect the layout of the water outlet channel.

[0019] Preferably, the magnetocaloric layer is made of neodymium iron boron magnets, and the magnetic isolation layer is made of aluminum. Beneficial effects

[0020] Beneficial effects: Compared with the prior art, the present invention provides a centrifugal oil-water separator with the following beneficial effects:

[0021] 1. This centrifugal oil-water separator uses a refrigeration module and a microwave module in conjunction. The cold end of the refrigeration module contacts the centrifugal chamber, causing the oil-water mixture in the centrifugal chamber to solidify. The motor drives the rotating shaft to rotate the entire centrifugal chamber. When the speed reaches a speed at which the oil-water mixture can be centrifugally separated into layers, the microwave module starts to operate. The microwave emission module transmits microwaves through a transparent plate, causing the centrifugal chamber to heat up evenly and melt the solidified oil-water mixture inside. This avoids the situation where the oil is emulsified due to the influence of water pressure and shear force due to insufficient speed, making it impossible to separate the oil.

[0022] 2. The centrifugal oil-water separation device uses a magnetic thermal layer and an electromagnetic layer. The magnetic thermal layer is composed of a magnetic thermal material. When this material enters the magnetic field, it will align the originally disordered magnetic domains, limit the freedom of the entire metal, and cause entropy and heat capacity to decrease, causing heat to be released and the temperature to rise. When the magnetic field is eliminated, the direction of the magnetic domains returns to its original disordered state, making it able to accommodate more heat, which will be absorbed and the temperature will drop, achieving cooling and heating, solidification and melting of the oil-liquid mixture in the centrifugal chamber, consuming less energy, and making the overall layout more compact.

[0023] 3. The centrifugal oil-water separator uses valve ports. The oil-water mixture inside the centrifugal chamber is affected by centrifugal force, gravity and the internal shape of the centrifugal chamber. The liquid levels at both ends of the centrifugal chamber are inclined toward the axis. Valves and detection modules are provided at the upper and lower vertices of both ends of the centrifugal chamber to discharge water and detect whether the water has been completely discharged. Compared with setting up multiple pipes to separate heavy liquid and light liquid, the structure is simpler.

[0024] 4. Compared with traditional centrifuges, the centrifugal oil-water separator has a simpler internal structure, reduces fan blades and other structures, and is more convenient to process and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic structural diagram of the present invention;

[0026] FIG2 is a schematic structural diagram of the present invention;

[0027] FIG3 is a schematic structural diagram of the present invention;

[0028] FIG4 is a schematic structural diagram of the present invention.

[0029] In the figure: 1. Shell; 2. Centrifugal chamber; 4. Refrigeration module; 5. Microwave module; 21. Rotating shaft; 211. Motor; 31. Water outlet channel; 32. Water inlet; 311. Water outlet; 312. Valve port; 313. Detection module; 51. Microwave emission module; 52. Transparent plate; 501. Protective shell; 201. Magnetic isolation layer; 202. Magnetocaloric layer; 203. Electromagnetic layer. Modes for Carrying Out the Invention

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Embodiment 1: Please refer to Figures 1-2. The centrifugal oil-water separation device includes a shell 1 and a centrifugal chamber 2. The centrifugal chamber 2 is arranged inside the shell 1. A rotating shaft 21 is provided on one side of the centrifugal chamber 2, which passes through the normally closed end of the shell 1. A water inlet 32 ​​is provided on the other side for filling the oil-water mixture and facing the openable end of the shell 1. A motor 211 is provided next to the rotating shaft 21 and is connected to be driven to rotate by it, so that the centrifugal chamber 2 rotates synchronously. A water outlet 311 connected to the water outlet channel 31 is provided at the bottom. A refrigeration module 4 is provided at the upper end of the outer side of the shell 1, and a microwave module is provided at the lower side.

[0032] Referring to Figure 3, the cold end at the bottom of the refrigeration module 4 is in contact with the centrifugal chamber 2. The refrigeration module 4 is arranged above the centrifugal chamber 2. The cold air is heavier and tends to sink. Placing the refrigeration module 4 at the top is beneficial to air convection in the chamber, resulting in better refrigeration effect and more uniform overall cooling, which prevents some solidification from sticking to the inner wall for too long. A microwave transmitting module 51 is provided inside the microwave module 5, and a transparent plate 52 is provided at the connection between the shell 1 and the microwave module 5, so that the microwaves emitted by the microwave transmitting module 51 can pass through the transparent plate 52 into the shell 1 to perform microwave heating on the centrifugal chamber 2.

[0033] Furthermore, a metal protective shell 501 is provided on the outside of the microwave transmitting module 51, covering the microwave transmitting module 51 and the transparent plate 52 inside to prevent the microwaves emitted by the microwave transmitting module 51 from being rebounded by the metal and affecting the surroundings, thereby ensuring that the microwaves will not dissipate and ensuring the internal heating efficiency.

[0034] The refrigeration module 4 cools the centrifugal chamber 2 by contact with it, causing the internal oil-water mixture to solidify. When the centrifugal chamber 2 is accelerated to the oil-liquid separation speed by the motor 211, microwaves are emitted by the microwave emission module 51 in the microwave module 5. Because the centrifugal chamber 2 is in a rotating state at this time, the entire chamber can be evenly affected by microwave heating, so that the solidified oil-water mixture inside is melted, avoiding the situation where the internal oil is emulsified due to water pressure and shear force when the initial speed is not reached, and the oil and water are suspended and evenly dispersed together in tiny particles, making it difficult to effectively stratify and resulting in incomplete separation.

[0035] Referring to FIG. 10 , controllable valve ports 312 are provided at the upper and lower vertices on both sides of the centrifugal chamber 2 and are connected to the water outlet channel 31 . A detection module 313 for detecting whether there is water is provided next to the valve port 312 . The detection module 313 is specifically an energized detection module that is energized when in contact with water and de-energized when in contact with oil.

[0036] Referring to FIG11 , the oil-water mixture inside the centrifugal chamber 2, under the influence of centrifugal force, gravity and the shape of the chamber, the oil layer and the water layer will present a liquid surface shape inclined toward the axis as shown in the figure, making it easier for the valve port 312 to discharge water, avoiding the situation where the water is not completely discharged before the oil is discharged. At the same time, the detection module 313 will be energized to open the valve port 312 only when it comes into contact with water. On the contrary, when the water is completely separated, the detection module 313 comes into contact with the oil and cannot be energized, causing the valve port 312 to close, preventing the oil and water from re-mixing and being discharged.

[0037] Furthermore, the water outlet channel 31 is arranged at the bottom of the shell 1 and is connected to each valve port 312, and finally leads to the water outlet 311. Compared with ordinary liquid extractors and centrifuges, the internal pipeline is simpler and does not need to be divided into heavy liquid channels and light liquid channels for discharge. At the same time, there are no fan blades inside to drive rotation and partitions, which is more convenient for processing and production as well as future maintenance.

[0038] Embodiment 2: Please refer to Figures 4-5. The centrifugal oil-water separation device includes a shell 1 and a centrifugal chamber 2. The centrifugal chamber 2 is arranged inside the shell 1. A rotating shaft 21 is provided on one side of the centrifugal chamber 2, which passes through the normally closed end of the shell 1. A water inlet 32 ​​is provided on the other side for filling the oil-water mixture and facing the openable end of the shell 1. A motor 211 is provided next to the rotating shaft 21 and is connected to be driven to rotate by it, so that the centrifugal chamber 2 rotates synchronously. A water outlet 311 connected to the water outlet channel 31 is provided at the bottom. A microwave module 5 is provided at the upper end of the outer side of the shell 1, and a refrigeration module 4 is provided at the lower side.

[0039] Referring to Figure 6, the cold end at the bottom of the refrigeration module 4 is in contact with the centrifugal chamber 2. The refrigeration module 4 is arranged at the lower side of the centrifugal chamber 2. Condensed water tends to accumulate at the refrigeration end. Placing it at the bottom can be more conveniently collected and drained, avoiding water droplets dripping onto other components and causing unnecessary problems. A microwave transmitting module 51 is provided inside the microwave module 5, and a transparent plate 52 is provided at the connection between the shell 1 and the microwave module 5, so that the microwaves emitted by the microwave transmitting module 51 can pass through the transparent plate 52 into the shell 1 to perform microwave heating on the centrifugal chamber 2.

[0040] Furthermore, a metal protective shell 501 is provided on the outside of the microwave transmitting module 51, covering the microwave transmitting module 51 and the transparent plate 52 inside to prevent the microwaves emitted by the microwave transmitting module 51 from being rebounded by the metal and affecting the surroundings, thereby ensuring that the microwaves will not dissipate and ensuring the internal heating efficiency.

[0041] The refrigeration module 4 cools the centrifugal chamber 2 by contact with it, causing the internal oil-water mixture to solidify. When the centrifugal chamber 2 is accelerated to the oil-liquid separation speed by the motor 211, microwaves are emitted by the microwave emission module 51 in the microwave module 5. Because the centrifugal chamber 2 is in a rotating state at this time, the entire chamber can be evenly affected by microwave heating, so that the solidified oil-water mixture inside is melted, avoiding the situation where the internal oil is emulsified due to water pressure and shear force when the initial speed is not reached, and the oil and water are suspended and evenly dispersed together in tiny particles, making it difficult to effectively stratify and resulting in incomplete separation.

[0042] Referring to FIG. 10 , controllable valve ports 312 are provided at the upper and lower vertices on both sides of the centrifugal chamber 2 and are connected to the water outlet channel 31 . A detection module 313 for detecting whether there is water is provided next to the valve port 312 . The detection module 313 is specifically an energized detection module that is energized when in contact with water and de-energized when in contact with oil.

[0043] Referring to FIG11 , the oil-water mixture inside the centrifugal chamber 2, under the influence of centrifugal force, gravity and the shape of the chamber, the oil layer and the water layer will present a liquid surface shape inclined toward the axis as shown in the figure, making it easier for the valve port 312 to discharge water, avoiding the situation where the water is not completely discharged before the oil is discharged. At the same time, the detection module 313 will be energized to open the valve port 312 only when it comes into contact with water. On the contrary, when the water is completely separated, the detection module 313 comes into contact with the oil and cannot be energized, causing the valve port 312 to close, preventing the oil and water from re-mixing and being discharged.

[0044] Furthermore, the water outlet channel 31 is arranged at the bottom of the shell 1 and is connected to each valve port 312, and finally leads to the water outlet 311. Compared with ordinary liquid extractors and centrifuges, the internal pipeline is simpler and does not need to be divided into heavy liquid channels and light liquid channels for discharge. At the same time, there are no fan blades inside to drive rotation and partitions, which is more convenient for processing and production as well as future maintenance.

[0045] Example 3: Please refer to Figures 1-2. The centrifugal oil-water separation device includes a shell 1 and a centrifugal chamber 2. The centrifugal chamber 2 is arranged inside the shell 1. A rotating shaft 21 is provided on one side of the centrifugal chamber 2, which passes through the normally closed end of the shell 1. A water inlet 32 ​​is provided on the other side for filling the oil-water mixture and facing the openable end of the shell 1. A motor 211 is provided next to the rotating shaft 21 and is connected to be driven to rotate by it, so that the centrifugal chamber 2 rotates synchronously. A water outlet 311 connected to the water outlet channel 31 is provided at the bottom. A refrigeration module 4 is provided at the upper end of the outer side of the shell 1, and a microwave module is provided at the lower side.

[0046] Referring to Figure 3, the cold end at the bottom of the refrigeration module 4 is in contact with the centrifugal chamber 2. The refrigeration module 4 is arranged above the centrifugal chamber 2. The cold air is heavier and tends to sink. Placing the refrigeration module 4 at the top is beneficial to air convection in the chamber, resulting in better refrigeration effect and more uniform overall cooling, which prevents some solidification from sticking to the inner wall for too long. A microwave transmitting module 51 is provided inside the microwave module 5, and a transparent plate 52 is provided at the connection between the shell 1 and the microwave module 5, so that the microwaves emitted by the microwave transmitting module 51 can pass through the transparent plate 52 into the shell 1 to perform microwave heating on the centrifugal chamber 2.

[0047] Furthermore, a metal protective shell 501 is provided on the outside of the microwave transmitting module 51, covering the microwave transmitting module 51 and the transparent plate 52 inside to prevent the microwaves emitted by the microwave transmitting module 51 from being rebounded by the metal and affecting the surroundings, thereby ensuring that the microwaves will not dissipate and ensuring the internal heating efficiency.

[0048] The refrigeration module 4 cools the centrifugal chamber 2 by contact with it, causing the internal oil-water mixture to solidify. When the centrifugal chamber 2 is accelerated to the oil-liquid separation speed by the motor 211, microwaves are emitted by the microwave emission module 51 in the microwave module 5. Because the centrifugal chamber 2 is in a rotating state at this time, the entire chamber can be evenly affected by microwave heating, so that the solidified oil-water mixture inside is melted, avoiding the situation where the internal oil is emulsified due to water pressure and shear force when the initial speed is not reached, and the oil and water are suspended and evenly dispersed together in tiny particles, making it difficult to effectively stratify and resulting in incomplete separation.

[0049] Referring to Figure 10, controllable valve ports 312 are provided at the upper and lower vertices on both sides of the centrifugal chamber 2 and are connected to the water outlet channel 31. A detection module 313 for detecting whether there is water is provided next to the valve port 312. The detection module 313 is specifically an infrared detection module that can detect the refractive index of infrared rays in liquid.

[0050] Referring to FIG12 , the oil-water mixture inside the centrifugal chamber 2, under the influence of centrifugal force, gravity and the shape of the chamber, the oil layer and the water layer will present a liquid surface shape inclined toward the axis as shown in the figure, making it easier for the valve port 312 to discharge water, avoiding the situation where the oil is discharged before the water is completely discharged. At the same time, the detection module 313 can emit infrared rays to the other end. When the infrared rays pass through different media, they will be refracted, causing the light to be deflected. By detecting the deflection angle of the infrared rays, it can be determined whether the water is completely discharged.

[0051] Furthermore, the water outlet channel 31 is arranged at the bottom of the shell 1 and is connected to each valve port 312, and finally leads to the water outlet 311. Compared with ordinary liquid extractors and centrifuges, the internal pipeline is simpler and does not need to be divided into heavy liquid channels and light liquid channels for discharge. At the same time, there are no fan blades inside to drive rotation and partitions, which is more convenient for processing and production as well as future maintenance.

[0052] Example 4: Please refer to Figures 7-8. The centrifugal oil-water separation device includes a shell 1 and a centrifugal chamber 2. The centrifugal chamber 2 is arranged inside the shell 1. A rotating shaft 21 is provided on one side of the centrifugal chamber 2 and passes through the normally closed end of the shell 1. A water inlet 32 ​​is provided on the other side for filling the oil-water mixture and facing the openable end of the shell 1. A motor 211 is provided next to the rotating shaft 21 and is connected to be driven to rotate by it, so that the centrifugal chamber 2 rotates synchronously. A water outlet 311 connected to the water outlet channel 31 is provided below.

[0053] The outer layer of the centrifugal chamber 2 is wrapped with a magnetic isolation layer 201, and a magnetocaloric layer 202 and an electromagnetic layer 203 are provided on the outside of the magnetic isolation layer 201. The magnetic isolation layer 201 and the magnetocaloric layer 202 are tightly connected to the centrifugal chamber 2 and can rotate therewith. The electromagnetic layer 203 is fixed inside the shell 1 and can form a circular magnetic field to affect the rotating magnetocaloric layer 202.

[0054] When the magnetocaloric material in the magnetocaloric layer 202 is affected by the magnetic field, magnetic domains will be aligned inside, making the originally disordered magnetic domains consistent in direction, limiting the freedom of the entire metal, resulting in a decrease in entropy and heat capacity, causing heat to be released and the temperature to rise. When the magnetic field is eliminated, the direction of the magnetic domains returns to its original disordered state, making it able to accommodate more heat, which will be absorbed and the temperature will drop, achieving cooling and heating, and the solidification and melting of the oil-liquid mixture in the centrifugal chamber, consuming less energy and making the overall layout more compact.

[0055] The magnetocaloric layer 202 is made of neodymium iron boron magnets, a strong magnetic material with a significant magnetocaloric effect. NdFeB magnets can absorb and release large amounts of heat under changing magnetic fields. The magnetic isolation layer 201 is made of aluminum, which has excellent thermal conductivity and ensures heat transfer and absorption. It also provides magnetic isolation, preventing the magnetic field from affecting the rotating centrifugal chamber 2.

[0056] 9 , a gap is provided at the lower end of the electromagnetic layer 203 so as not to affect the layout of the water outlet channel 31 , making the layout inside the shell more compact, reducing the occupied space, and facilitating the operation of a large number of devices.

[0057] Referring to FIG. 10 , controllable valve ports 312 are provided at the upper and lower vertices on both sides of the centrifugal chamber 2 and are connected to the water outlet channel 31 . A detection module 313 for detecting whether there is water is provided next to the valve port 312 . The detection module 313 is specifically an energized detection module that is energized when in contact with water and de-energized when in contact with oil.

[0058] Referring to FIG11 , the oil-water mixture inside the centrifugal chamber 2, under the influence of centrifugal force, gravity and the shape of the chamber, the oil layer and the water layer will present a liquid surface shape inclined toward the axis as shown in the figure, making it easier for the valve port 312 to discharge water, avoiding the situation where the water is not completely discharged before the oil is discharged. At the same time, the detection module 313 will be energized to open the valve port 312 only when it comes into contact with water. On the contrary, when the water is completely separated, the detection module 313 comes into contact with the oil and cannot be energized, causing the valve port 312 to close, preventing the oil and water from re-mixing and being discharged.

[0059] Furthermore, the water outlet channel 31 is arranged at the bottom of the shell 1 and is connected to each valve port 312, and finally leads to the water outlet 311. Compared with ordinary liquid extractors and centrifuges, the internal pipeline is simpler and does not need to be divided into heavy liquid channels and light liquid channels for discharge. At the same time, there are no fan blades inside to drive rotation and partitions, which is more convenient for processing and production as well as future maintenance.

[0060] Example 5: Please refer to Figures 7-8. The centrifugal oil-water separation device includes a shell 1 and a centrifugal chamber 2. The centrifugal chamber 2 is arranged inside the shell 1. A rotating shaft 21 is provided on one side of the centrifugal chamber 2 and passes through the normally closed end of the shell 1. A water inlet 32 ​​is provided on the other side for filling the oil-water mixture and facing the openable end of the shell 1. A motor 211 is provided next to the rotating shaft 21 and is connected to be driven to rotate by it, so that the centrifugal chamber 2 rotates synchronously. A water outlet 311 connected to the water outlet channel 31 is provided below.

[0061] The outer layer of the centrifugal chamber 2 is wrapped with a magnetic isolation layer 201, and a magnetocaloric layer 202 and an electromagnetic layer 203 are provided on the outside of the magnetic isolation layer 201. The magnetic isolation layer 201 and the magnetocaloric layer 202 are tightly connected to the centrifugal chamber 2 and can rotate therewith. The electromagnetic layer 203 is fixed inside the shell 1 and can form a circular magnetic field to affect the rotating magnetocaloric layer 202.

[0062] When the magnetocaloric material in the magnetocaloric layer 202 is affected by the magnetic field, magnetic domains will be aligned inside, making the originally disordered magnetic domains consistent in direction, limiting the freedom of the entire metal, resulting in a decrease in entropy and heat capacity, causing heat to be released and the temperature to rise. When the magnetic field is eliminated, the direction of the magnetic domains returns to its original disordered state, making it able to accommodate more heat, which will be absorbed and the temperature will drop, achieving cooling and heating, and the solidification and melting of the oil-liquid mixture in the centrifugal chamber, consuming less energy and making the overall layout more compact.

[0063] The magnetocaloric layer 202 is made of neodymium iron boron magnets, a strong magnetic material with a significant magnetocaloric effect. NdFeB magnets can absorb and release large amounts of heat under changing magnetic fields. The magnetic isolation layer 201 is made of aluminum, which has excellent thermal conductivity and ensures heat transfer and absorption. It also provides magnetic isolation, preventing the magnetic field from affecting the rotating centrifugal chamber 2.

[0064] 9 , a gap is provided at the lower end of the electromagnetic layer 203 so as not to affect the layout of the water outlet channel 31 , making the layout inside the shell more compact, reducing the occupied space, and facilitating the operation of a large number of devices.

[0065] Referring to Figure 10, controllable valve ports 312 are provided at the upper and lower vertices on both sides of the centrifugal chamber 2 and are connected to the water outlet channel 31. A detection module 313 for detecting whether there is water is provided next to the valve port 312. The detection module 313 is specifically an infrared detection module that can detect the refractive index of infrared rays in liquid.

[0066] Referring to FIG12 , the oil-water mixture inside the centrifugal chamber 2, under the influence of centrifugal force, gravity and the shape of the chamber, the oil layer and the water layer will present a liquid surface shape inclined toward the axis as shown in the figure, making it easier for the valve port 312 to discharge water, avoiding the situation where the oil is discharged before the water is completely discharged. At the same time, the detection module 313 can emit infrared rays to the other end. When the infrared rays pass through different media, they will be refracted, causing the light to be deflected. By detecting the deflection angle of the infrared rays, it can be determined whether the water is completely discharged.

[0067] Furthermore, the water outlet channel 31 is arranged at the bottom of the shell 1 and is connected to each valve port 312, and finally leads to the water outlet 311. Compared with ordinary liquid extractors and centrifuges, the internal pipeline is simpler and does not need to be divided into heavy liquid channels and light liquid channels for discharge. At the same time, there are no fan blades inside to drive rotation and partitions, which is more convenient for processing and production as well as future maintenance.

[0068] Working principle: When oil is exposed to severe shear force under rotation and high pressure, emulsification may occur. Emulsification refers to the mixing of oil and water under shear force to form a stable emulsion, in which oil and water are suspended and evenly dispersed in tiny particles, making it difficult to effectively separate them. Therefore, after the mixture is loaded into the device through the water inlet 32, the pipes and ports are closed, and the oil-water mixture in the centrifugal chamber 2 is first cooled and solidified, and then rotated. When the optimal centrifugal speed is reached, the mixture is heated and melted to quickly separate them, effectively reducing oil emulsification and maintaining the original shape. The separation quality is guaranteed, and the internal structure is simplified, which is more convenient for processing and maintenance. Controllable valve ports 312 are provided at the upper and lower vertices on both sides of the centrifugal chamber 2, and are connected to the water outlet channel 31. A detection module 313 for detecting whether there is water is provided next to the valve port 312 to prevent the discharge of oil. The oil-water mixture inside the centrifugal chamber 2, under the influence of centrifugal force, gravity and the shape of the chamber, the oil layer and the water layer will present a liquid surface shape inclined toward the axis as shown in the figure, as shown in Figure 11, making it easier for the valve port 312 to discharge water, avoiding the situation where the water is not discharged completely before the oil is discharged.

[0069] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal oil-water separation device, comprising a housing (1) and a centrifugal chamber (2), characterized in that: The centrifugal chamber (2) is arranged inside the shell (1); a rotating shaft (21) is provided on one side of the centrifugal chamber (2) and passes through the normally closed end of the shell (1); and a water inlet (32) is provided on the other side of the centrifugal chamber (2) and faces the openable end of the shell (1); A motor (211) is provided beside the rotating shaft (21) and is connected to be driven to rotate thereby. A water outlet (311) connected to the water outlet channel (31) is provided below. A refrigeration module (4) is provided at the upper end of the outer side of the shell (1) and a microwave module (5) is provided at the lower side, or a microwave module (5) is provided at the upper end and a refrigeration module (4) is provided at the lower side. The cold end at the bottom of the refrigeration module (4) is in contact with the centrifugal chamber (2); a microwave transmitting module (51) is provided inside the microwave module (5); and a transparent plate (52) is provided on the housing (1) at a location where the housing (1) is connected to the microwave module (5), so that microwaves emitted by the microwave transmitting module (51) can pass through the transparent plate (52) and enter the housing (1) to perform microwave heating on the centrifugal chamber (2); The refrigeration module (4) cools the centrifugal chamber (2) by contact with it, so that the oil-water mixture inside solidifies. When the centrifugal chamber (2) is accelerated to the separation speed by the motor (211), microwaves are emitted by the microwave emission module (51) in the microwave module (5). Because the centrifugal chamber (2) is in a rotating state at this time, the entire chamber can be evenly affected by microwave heating, so that the solidified oil-water mixture inside is melted, thereby avoiding the situation where the internal oil liquid is emulsified due to water pressure and shear force when the initial rotation speed is not reached, resulting in incomplete separation.

2. The centrifugal oil-water separator according to claim 1, characterized in that: A protective shell (501) made of a metal material is provided on the outside of the microwave transmitting module (51), and covers the microwave transmitting module (51) and the transparent plate (52) inside.

3. The centrifugal oil-water separator according to claim 1, characterized in that: Controllable valve ports (312) are provided at the upper and lower vertices on both sides of the centrifugal chamber (2) and are in communication with the water outlet channel (31). A detection module (313) for detecting whether there is water is provided on the side of the valve port (312).

4. The centrifugal oil-water separator according to claim 3, characterized in that: The detection module (313) is specifically an energized detection module that is energized when in contact with water and de-energized when in contact with oil, or an infrared detection module that can detect the refractive index of infrared rays in liquid.

5. The centrifugal oil-water separator according to claim 1, characterized in that: The water outlet channel (31) is arranged at the bottom of the housing (1), and is in communication with each valve port (312), and finally leads to the water outlet (311).

6. The centrifugal oil-water separator according to claim 1, characterized in that: The outer layer of the centrifugal chamber (2) is wrapped with a magnetic isolation layer (201), and a magnetic heat layer (202) and an electromagnetic layer (203) are provided on the outer side of the magnetic isolation layer (201).

7. The centrifugal oil-water separator according to claim 6, characterized in that: The magnetic isolation layer (201) and the magnetothermal layer (202) are tightly connected to the centrifugal chamber (2) and are capable of rotating therewith; the electromagnetic layer (203) is fixed inside the shell (1) and is capable of forming a circular magnetic field to influence the rotating magnetothermal layer (202); When the magnetocaloric material in the magnetocaloric layer (202) is affected by a magnetic field, magnetic domains are aligned inside, which limits the degree of freedom, resulting in a decrease in entropy and heat capacity, causing heat to be released and the temperature to rise. When the magnetic field is eliminated, the direction of the magnetic domains returns to a disordered state, making it able to accommodate more heat, which will absorb the heat, reduce the temperature, and achieve heating and cooling, and the oil-liquid mixture solidifies and melts.

8. The centrifugal oil-water separator according to claim 6, characterized in that: A notch is provided at the lower end of the electromagnetic layer (203) so as not to affect the layout of the water outlet channel (31).

9. The centrifugal oil-water separator according to claim 6, characterized in that: The magnetothermal layer (202) is made of neodymium iron boron magnets, and the magnetic isolation layer (201) is made of aluminum.

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