Magnetic levitation electromagnetic one-way valve

Abstract

This invention relates to the field of valve technology, and more particularly to a magnetically levitated electromagnetic one-way valve, comprising a main fan unit, and further comprising: an electromagnet control unit for controlling the movement of the valve core; a valve body forming a pump chamber inside; a first valve core, which is freely movable up and down within the pump chamber; and a shock-absorbing sealing mechanism installed at the bottom of the valve. This magnetically levitated electromagnetic one-way valve solves the technical problem of controlling the movement of the iron core by switching the current on or off the electromagnet, thereby further controlling the opening and closing of the one-way valve. The sealing components of one-way valves are mostly steel balls and valve cores, making it difficult to manufacture large-size one-way valves for use in the lower part of large reactors. It also solves the technical problem that steel balls, as sealing components, require high surface processing precision, and their sealing performance will decrease sharply after the surface finish is damaged. The magnetically levitated one-way valve provided by this invention has low wind resistance, reduces the energy consumption of the main fan, and is highly responsive and reliable.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and in particular to a magnetically levitated electromagnetic one-way valve. Background Technology

[0002] Currently, in heavy oil catalytic cracking units, a large axial-flow compressor (main blower unit) is typically connected to the bottom of the reactor to provide a large amount of airflow, which is then blown into the regenerator and other parts for catalyst regeneration. If the air supply is suddenly stopped (e.g., due to a power outage or interlocking shutdown), catalyst backflow will occur. Once it enters the main blower unit, it will cause a serious production accident. To address this, existing technology usually installs a safety butterfly valve at the bottom, with a counterweight installed on the outside of the valve. When the pipeline stops supplying air, the butterfly valve will suddenly close due to the action of the counterweight to prevent catalyst backflow. However, this design has a problem: during normal air supply, a large portion of the airflow needs to overcome the resistance generated by the valve plate of the safety butterfly valve, resulting in unnecessary energy loss. This ultimately manifests as the main blower consuming hundreds of thousands of yuan in electricity costs annually. Furthermore, this safety butterfly valve also poses a significant safety hazard. When the main blower unit stops supplying air, the valve plate closure relies on the torque generated by the counterweight. If the rotating shaft of the valve plate is corroded or jammed, the valve plate cannot close, still causing catalyst backflow and resulting in a serious production accident.

[0003] In addition, there are other applications, such as in the polymerization of olefins like ethylene and propylene. By injecting olefin polymerization catalysts into the reactor, one or more olefin monomers undergo homopolymerization or copolymerization to obtain various olefin polymers such as linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, isotactic polypropylene, and atactic polypropylene. These polymerization processes all involve the transport of catalysts and polymer powders to varying degrees. In the catalyst injection process of the olefin polymerization unit, the catalyst, either as a solid powder or in the form of a paste prepared with grease, is added to the catalyst feeder under pressure and then injected into the reactor for polymerization. Powdered catalysts are injected into the polymerization reactor under high pressure using nitrogen gas, while paste-like catalysts are injected into the polymerization reactor under pressure using an injection pump. During the operation of the device, it is essential to ensure that the pressure in the catalyst feeder is higher than that in the reactor to guarantee that the catalyst can be injected into the reaction and that the gaseous monomers and solid polymers in the polymerization reactor will not return from the reactor to the catalyst injection line. If the pressure in the catalyst feeder is insufficient or disappears, and the pressure is lower than that in the reactor, the high-temperature monomers and polymer particles in the reactor will backflow from the catalyst injection line and react with the catalyst in the line to form polymers, which will then solidify in the line and cause blockage of the catalyst line.

[0004] In gas-phase polymerization, a circulating gas compressor drives gas circulation within a fluidized bed reactor to remove the heat of reaction generated during polymerization. A mixed gas consisting of olefin monomers, nitrogen, and a molecular weight regulator first undergoes polymerization within the reactor under the action of a catalyst. The remaining gas exits from the top of the reactor, passes through a heat exchanger to remove the heat of reaction, and then re-enters the circulating gas compressor. After being pressurized, the gas enters the gas chamber at the bottom of the reactor. A distribution plate at the bottom of the reactor further distributes the gas evenly before it enters the reactor to continue the reaction. This process fluidizes the polymer particles within the reactor. However, in the event of a power outage or compressor malfunction, the fluidization disappears, leading to bed collapse. Material in the reactor falls into the gas chamber below the distribution plate and then backflows into the circulating gas pipeline. The high-temperature olefin monomers, active polymer particles, and remaining catalyst undergo polymerization in the pipeline, potentially clogging it. This necessitates lengthy shutdowns for cleaning, and may even require pipeline replacement, resulting in significant time, effort, and economic losses. Therefore, research into one-way valves is of great importance.

[0005] Patent CN201210484986.5, "An Electrohydraulic Controlled One-Way Valve," describes an electrohydraulic controlled one-way valve. While this valve is electromagnetically controlled, its sealing element is a steel ball. This design is difficult to manufacture in large sizes, lacks magnetic levitation, and requires very high surface finish. With prolonged use, the surface smoothness deteriorates, leading to a sharp decline in sealing performance. Therefore, it cannot be applied to the lower part of large reactors in chemical equipment, differing from the proposed patent application.

[0006] Patent CN201510822375.0, "An Improved Two-Position Two-Way Solenoid Valve," describes an improved two-position two-way solenoid valve. This patent controls the movement of the moving iron core by connecting and disconnecting an electromagnet, thereby controlling the opening and closing of the one-way valve. The sealing element is a steel ball. This design is difficult to manufacture in large sizes, lacks magnetic levitation, and requires very high surface finishing precision. With prolonged use, the surface finish deteriorates, leading to a sharp decline in sealing performance. Therefore, it cannot be applied to the lower part of large reactors in chemical equipment, differing from the proposed patent solution.

[0007] In summary, existing electromagnetic check valves rely on switching the current of an electromagnet on or off to control the movement of the iron core, thereby controlling the opening and closing of the check valve. The sealing components of these check valves are mostly steel balls and valve cores. This design makes it difficult to manufacture large-sized check valves for use in the lower part of large reactors to prevent catalyst backflow. Furthermore, the steel ball, as a sealing component, requires very high surface finish; prolonged use can lead to a sharp decline in sealing performance due to surface roughness. Additionally, traditional check valves primarily operate on liquids (such as hydraulic oil) and are rarely used to control gases. They also rarely utilize magnetic levitation to reduce wind resistance and thus energy loss in the main fan unit. Therefore, relevant technical personnel have not fully utilized the value of check valves. Summary of the Invention

[0008] To address the shortcomings of the existing technologies, this invention provides a magnetically levitated electromagnetic one-way valve. This valve solves the problem of controlling the movement of the iron core by switching the current on or off the electromagnet, thereby further controlling the opening and closing of the one-way valve. The sealing components of one-way valves are mostly steel balls and valve cores. This design makes it difficult to manufacture large-size one-way valves for use in the lower part of large reactors to achieve the function of preventing catalyst backflow. At the same time, it also solves the technical problem that the surface processing precision requirements of steel balls as sealing components are very high. If the surface finish is damaged after long-term use, the sealing performance will drop sharply.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A magnetically levitated electromagnetic one-way valve, comprising a main fan unit, is characterized in that it further comprises:

[0011] An electromagnet control unit is used to control the movement of the valve core;

[0012] A valve body, wherein a pump chamber is formed inside the valve body;

[0013] A first valve core, which is freely movable up and down, is disposed within the pump cavity;

[0014] A shock-absorbing sealing mechanism is installed at the bottom of the valve.

[0015] In some embodiments, the shock-absorbing sealing mechanism further includes:

[0016] A second valve core is disposed inside the pump chamber, and the second valve core is disposed opposite to the first valve.

[0017] A bracket, the edge of which is fixed to the inlet of the valve body, and a through hole is formed in the center of the bracket;

[0018] A valve stem passes through the through hole of the bracket, and the upper end of the valve stem is connected to the center of the circular surface of the second valve core.

[0019] In some embodiments, the lower end of the valve stem is further connected to a stop block, the diameter of which is larger than the diameter of the through hole on the bracket.

[0020] In some embodiments, a spring that can freely extend and compress in the vertical direction is installed between the second valve core and the bracket, and the spring is sleeved on the valve stem.

[0021] In some embodiments, the first valve core is wrapped with a resilient protective shell.

[0022] In some embodiments, when the main fan stops supplying air, the sum of the weights of the protective shell, the first valve core, and the second valve core is greater than the spring, ensuring that the one-way valve closes normally.

[0023] In some embodiments, under continuous air supply from the main fan, the sum of the electromagnetic attraction generated by the electromagnetic component and the lifting force generated by the upward airflow on the protective shell is equal to the gravity generated by the protective shell and the first valve core, ensuring that the first valve core with the protective shell is in a suspended state.

[0024] In some embodiments, the second valve core further includes a seal.

[0025] In some embodiments, the second valve core further includes a ridge that attaches the seal to the conical surface of the second valve core.

[0026] In some embodiments, the top of the second valve core is concave.

[0027] In some embodiments, the electromagnet control unit further includes:

[0028] An electromagnet assembly, comprising multiple electromagnets, is mounted on a valve body;

[0029] An electromagnet control unit, wherein the electromagnet control unit transmits current to the electromagnet assembly through an electromagnet control circuit.

[0030] The number of electromagnet control circuits is matched with the number of electromagnets.

[0031] In some embodiments, the electromagnet assembly further includes: a first electromagnet, a second electromagnet, a third electromagnet, and a fourth electromagnet.

[0032] In some embodiments, the electromagnet control circuit further includes: a first electromagnet control circuit, a second electromagnet control circuit, a third electromagnet control circuit, and a fourth electromagnet control circuit.

[0033] In some embodiments, the electromagnet control unit employs a programmable PLC.

[0034] In some embodiments, a retainer is mounted on the top of the valve body, and the valve body and the retainer are detachably connected.

[0035] In some embodiments, the valve body is provided with a first flange and a second flange at both ends.

[0036] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0037] 1. This invention provides a magnetically levitated electromagnetic one-way valve, applicable to the bottom of large reactors in chemical equipment. As a relatively large valve, it can prevent backflow of powders such as catalysts and polymers into the equipment, offering advantages such as large size and impact mitigation. The magnetically levitated one-way valve provided by this invention has a shock-absorbing sealing mechanism at the bottom of the valve body. This allows the one-way valve function to be achieved without making the first valve core very large, thus solving the technical problem that ordinary one-way valves in the prior art cannot be made in large sizes. Simultaneously, it also has an impact mitigation effect; the spring in the shock-absorbing sealing mechanism can significantly reduce the impact force generated when the first valve core falls.

[0038] 2. The magnetic levitation one-way valve provided by the present invention has low wind resistance, which reduces the energy consumption of the main fan. The first valve core is designed as a sphere. When the airflow blows onto the protective shell, the streamlined contact area significantly reduces the airflow resistance.

[0039] 3. The magnetic levitation check valve provided by this invention is highly responsive and safe. Since the Earth's gravity always exists, as long as the main fan unit stops supplying air, the balance force acting on the first valve core will be disrupted. Gravity will cause the first valve core to fall and detach from the magnetic attraction area of ​​the electromagnet assembly, and then accelerate down to the second valve core, thereby closing the electromagnetic check valve. The corrosion or deformation of the valve plate main shaft of a traditional butterfly valve may cause it to fail. However, the method in this invention is safer and more reliable than the traditional "weight + butterfly valve" technical solution. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of a magnetically levitated electromagnetic one-way valve provided according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of a magnetically levitated electromagnetic check valve equipped with a shock-absorbing and sealing mechanism according to an embodiment of the present invention;

[0043] Figure 3 for Figure 2 A schematic diagram of the shock-absorbing sealing mechanism mentioned above;

[0044] Figure 4 for Figure 2 A schematic diagram of the structure of a magnetically levitated electromagnetic check valve when the top of the second valve core is concave.

[0045] Figure 5 for Figure 4 A schematic diagram of the shock-absorbing sealing mechanism mentioned above;

[0046] in:

[0047] 1. Electromagnet assembly; 101. First electromagnet; 102. Second electromagnet; 103. Third electromagnet; 104. Fourth electromagnet; 2. Valve body; 201. Pump chamber; 202. First flange; 203. Second flange; 3. Compression fitting; 4. First valve core; 401. Protective shell; 5. Electromagnet control unit; 6. Electromagnet control circuit; 601. First electromagnet control circuit; 602. Second electromagnet control circuit; 603. Third electromagnet control circuit; 604. Fourth electromagnet control circuit; 7. Second valve core; 701. Seal; 702. Rib; 8. Bracket; 9. Valve stem; 901. Stop; 10. Spring. Detailed Implementation

[0048] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims.

[0049] Certain terms are used in this specification and the following claims to refer to specific components or parts. Those skilled in the art will understand that users or manufacturers may use different names or terms to refer to the same component or part. This specification and the following claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout this specification and the following claims are open-ended and should be interpreted as "including but not limited to". Furthermore, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections made through other means.

[0050] It should be noted that in the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and "about", or "approximately", "substantially", "left and right", etc., indicating the orientation or positional relationship or parameters, are all based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, a specific size, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] like Figure 2 As shown, the present invention provides a magnetically levitated electromagnetic one-way valve, including a main fan unit, and further comprising:

[0052] An electromagnet control unit is used to control the movement of the valve core;

[0053] A valve body 2, wherein a pump chamber 201 is formed inside the valve body 2;

[0054] A first valve core 4 is disposed within the pump chamber 201, which is capable of moving freely up and down; the first valve core 4 is made of ferrous metal, preferably iron or steel.

[0055] A shock-absorbing and sealing mechanism is installed at the bottom of the valve body 2.

[0056] The magnetic levitation electromagnetic check valve provided in this embodiment of the invention must be installed vertically, and attention must be paid to the installation direction. It cannot be installed upside down or horizontally, although a small-angle tilt is acceptable. It should be noted that the valve body 2 cannot be made of ferrous metals, and the material cannot be attracted by a magnet. Considering the service life of industrial products, aluminum alloy or copper alloy should be preferred. The magnetic levitation electromagnetic check valve provided in this embodiment of the invention is suitable for smaller workplaces, such as the lower part of a laboratory reaction vessel. Figure 1 For electromagnetic check valves excluding shock-absorbing and sealing mechanisms, embodiments of the present invention provide, as follows: Figure 2 The magnetic levitation electromagnetic check valve shown is equipped with a shock-absorbing and sealing mechanism. With the addition of the shock-absorbing and sealing mechanism, it can be applied to the bottom of large reactors.

[0057] Among them, such as Figure 3 As shown, the shock-absorbing sealing mechanism further includes:

[0058] A second valve core 7 is disposed in the pump chamber 201 and is in the shape of a frustum. The second valve core 7 is disposed opposite to the first valve core 4.

[0059] A bracket 8, the edge of which is fixed to the inlet of the valve body 3, preferably by welding, and a through hole is formed in the center of the bracket 8;

[0060] A valve stem 9 passes through the through hole of the bracket 8, and the upper end of the valve stem 9 is connected to the center of the circular surface of the second valve core 7.

[0061] Specifically, a stop block 901 is further connected to the lower end of the valve stem 9, and the diameter of the stop block 901 is larger than the diameter of the through hole on the bracket 8.

[0062] A spring 10, which can freely extend and compress in the vertical direction, is installed between the second valve core 7 and the bracket 8, and the spring 10 is sleeved on the valve stem 9. In this embodiment of the invention, a shock-absorbing sealing mechanism is added to the bottom of the valve body 2, which not only allows the size of the one-way valve to be increased, but also the spring 10 in the shock-absorbing sealing mechanism can significantly reduce the impact force generated when the first valve core 4 falls.

[0063] In this embodiment of the invention, the valve stem 9 passes through the hole of the spring 10, preventing the spring 10 from moving left or right, but allowing it to extend and compress freely in the vertical direction. The spring 10 is a compression spring. When the first valve core 4 is attracted by the electromagnet assembly 1 through electromagnetic force, the spring 10 typically lifts the second valve core 7, keeping the one-way valve always in the normally open state, allowing airflow to pass freely. The second valve core 7 is preferably made of lightweight ceramic, a material with good thermal conductivity, which protects the seal 701 from failure due to excessive temperature. When the electromagnet assembly 1 is de-energized and loses its magnetic force, the first valve core 4 falls and presses against the second valve core 7, thereby compressing the spring 10 and closing the one-way valve.

[0064] The first valve core 4 is surrounded by an elastic protective shell 41. To prevent the surface of the first valve core 4 from being damaged by repeated raising or lowering during operation, the protective shell 41 is wrapped around the first valve core 4 in this embodiment of the invention. The protective shell 4 can be made of an elastic material to provide a certain degree of cushioning and shock absorption.

[0065] Specifically, when the main fan stops supplying air, the sum of the weights of the protective shell 41, the first valve core 4, and the second valve core 7 is greater than that of the spring 10, ensuring that the one-way valve closes normally. The magnetic levitation electromagnetic one-way valve provided in this embodiment of the invention is responsive and reliable. Because the Earth's gravity always exists, as long as the main fan unit stops supplying air, the balance force acting on the first valve core 4 will be broken. Gravity will cause the first valve core 4 to fall and separate from the magnetic attraction area of ​​the electromagnet assembly 1, and then accelerate down to the second valve core 7, thereby closing the new electromagnetic one-way valve. This control method is safer and more reliable than the traditional "weighted hammer + butterfly valve" technical solution, because the main shaft of the butterfly valve plate may fail due to corrosion or deformation.

[0066] Specifically, under continuous air supply conditions, the sum of the electromagnetic attraction generated by the electromagnetic component 1 and the lifting force generated by the upward airflow on the protective shell 41 is equal to the gravity generated by the protective shell 41 and the first valve core 4, ensuring that the first valve core 4 with the protective shell 41 is in a suspended state, thereby minimizing the resistance to the airflow.

[0067] In this embodiment of the invention, the protective shell 41 is designed as a sphere. When the airflow blows onto the protective shell 41, the airflow resistance can be significantly reduced because the contact area is streamlined. This results in low wind resistance and reduced energy consumption of the main fan unit.

[0068] Furthermore, in this embodiment of the invention, the lifting force generated by the upward airflow on the protective shell 41 changes dynamically depending on the rising position of the protective shell 41. In actual use, the operators inside the unit will connect the fourth electromagnet 104, the third electromagnet 103, the second electromagnet 102, and the first electromagnet 101 one by one according to the magnitude of the disappearance of other instruments, so that the sum of the electromagnetic attraction generated by the electromagnet assembly 1 and the lifting force generated by the upward airflow on the protective shell 41 is equal to the gravity generated by the protective shell 41 and the first valve core 4; thereby completing the optimal adjustment of the control parameters.

[0069] The second valve core 7 further includes a sealing element 701, which is preferably made of a high-temperature resistant polymer material, such as rubber. Specifically, the second valve core 7 further includes a protruding ridge 702 for attaching the sealing element 701 to the conical surface of the second valve core 7. The protruding ridge 702 is not a necessary structure; its function is to better attach the sealing element 701 to the conical surface of the second valve core 7.

[0070] Among them, such as Figure 4-5This is a schematic diagram of the magnetic levitation electromagnetic check valve and the shock-absorbing sealing mechanism provided by the present invention when the top of the second valve core is concave. If the size of the provided magnetic levitation electromagnetic check valve is made very large, the top of the second valve core 7 is set to be concave. In this way, when the first valve core 4 falls on the second valve core 7, the first valve core 4 can roll to the center position of the second valve core 7, thereby preventing the following situation: because the first valve core 4 is small in size, the landing point is at the edge of the second valve core 7, thereby deflecting the second valve core 7 and preventing the new electromagnetic check valve from closing normally.

[0071] The electromagnet control unit further includes:

[0072] An electromagnet assembly 1, comprising multiple electromagnets, is mounted on a valve body 2; the number of electromagnets is determined according to specific design parameters.

[0073] An electromagnet control unit 5, wherein the electromagnet control unit 5 transmits current to the electromagnet assembly 1 through an electromagnet control line 6.

[0074] The number of electromagnet control circuits 6 is matched with the number of electromagnets.

[0075] Specifically, the electromagnet assembly 1 further includes: a first electromagnet 101, a second electromagnet 102, a third electromagnet 103, and a fourth electromagnet 104. Specifically, the electromagnet control circuit 6 further includes: a first electromagnet control circuit 601, a second electromagnet control circuit 602, a third electromagnet control circuit 603, and a fourth electromagnet control circuit 604. The electromagnet control unit 5 uses a programmable PLC. In this embodiment of the invention, the main function of the electromagnet control circuit 6 is to transmit current to the electromagnet assembly 1. The number of electromagnet control circuits 6 is determined by the number of electromagnet assemblies 1. The electromagnet control unit 5 can preferably use a PLC for convenient programmable control.

[0076] The valve body 2 has a retainer 3 installed at its top end, and the valve body 2 and the retainer 3 are detachably connected. The valve body 2 has a first flange 202 and a second flange 203 at both ends. In this embodiment of the invention, flanges are used for easy installation. Of course, it is not limited to using flanges for installation. Welding or other methods can also be used for connection.

[0077] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A magnetically levitated electromagnetic one-way valve, comprising a main fan unit, characterized in that: Also includes: An electromagnet control unit is used to control the movement of the valve core; A valve body, wherein a pump chamber is formed inside the valve body; A first valve core, which is freely movable up and down, is disposed in the pump cavity; a shock-absorbing and sealing mechanism is installed at the bottom of the valve body; The shock-absorbing sealing mechanism further includes: A second valve core is disposed within the pump chamber, and the second valve core is arranged opposite to the first valve core. A bracket, the edge of which is fixed to the inlet of the valve body, and a through hole is formed in the center of the bracket; A valve stem passes through the through hole of the bracket, and the upper end of the valve stem is connected to the center of the circular surface of the second valve core.

2. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: A stop block is further connected to the lower end of the valve stem, and the diameter of the stop block is larger than the diameter of the through hole on the bracket.

3. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: A spring that can freely extend and compress in the vertical direction is installed between the second valve core and the bracket, and the spring is sleeved on the valve stem.

4. The magnetically levitated electromagnetic one-way valve according to claim 3, characterized in that: The first valve core is wrapped with a flexible protective shell.

5. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: The second valve core further includes a seal.

6. The magnetically levitated electromagnetic one-way valve according to claim 5, characterized in that: The second valve core further includes a raised ridge that attaches the seal to the conical surface of the second valve core.

7. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: The top of the second valve core is concave.

8. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: The electromagnet control unit further includes: An electromagnet assembly, comprising multiple electromagnets, is mounted on a valve body; An electromagnet control unit, wherein the electromagnet control unit transmits current to the electromagnet assembly through an electromagnet control circuit. The number of electromagnet control circuits is matched with the number of electromagnets.

9. The magnetically levitated electromagnetic one-way valve according to claim 8, characterized in that: The electromagnet assembly further includes: a first electromagnet, a second electromagnet, a third electromagnet, and a fourth electromagnet.

10. The magnetically levitated electromagnetic one-way valve according to claim 9, characterized in that: The electromagnet control circuit further includes: a first electromagnet control circuit, a second electromagnet control circuit, a third electromagnet control circuit, and a fourth electromagnet control circuit.

11. The magnetically levitated electromagnetic one-way valve according to claim 8, characterized in that: The electromagnet control unit uses a PLC.

12. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: A retainer is installed at the top of the valve body, and the valve body and the retainer are detachably connected.

13. The magnetically levitated electromagnetic one-way valve according to claim 1, characterized in that: The valve body is provided with a first flange and a second flange at both ends.

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