Centrifugal machine protection device and centrifugal machine

Abstract

The invention discloses a centrifugal machine protection device and a centrifugal machine, and relates to the technical field of centrifugal machines. The centrifugal machine protection device comprises an air conveying pipe, an air outlet pipe, a plugging assembly, an adjusting assembly and a control assembly. One end of the gas conveying pipe is communicated with a gas inlet of the centrifugal machine, and the other end of the gas conveying pipe is communicated with gas supply equipment; one end of the air outlet pipe is communicated with an air outlet of the centrifugal machine; the plugging assembly communicates with one end of the air outlet pipe away from the air outlet; the adjusting assembly is arranged on the gas conveying pipe; the control assembly comprises a control piece and an air pressure sensor, the air pressure sensor is arranged on the plugging assembly, and the control piece is electrically connected with the adjusting assembly and the air pressure sensor. According to the centrifugal machine protection device, the inert gas is continuously input into the centrifugal machine, so that the air pressure in the centrifugal machine is larger than the environment air pressure, the oxygen concentration in the centrifugal machine is effectively reduced, flash explosion accidents of the centrifugal machine can be effectively avoided, and the working safety of the centrifugal machine is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifuges, and in particular to a centrifuge protection device and a centrifuge. Background Art

[0002] In the existing centrifuge dehydration process, when the dehydrated materials contain flammable and explosive solvents, such as alcohols, benzene and other chemicals, these solvents will generate static electricity during the high-speed rotation of the centrifugal dehydration due to the friction between the materials and the metal parts inside the equipment, or due to the collision between the materials. The accumulation of static electricity and the friction sparks between metal parts may become potential factors for flash explosion accidents. Once the conditions are met, violent chemical reactions may occur, leading to flash explosion accidents, which will not only damage the equipment, but also pose a serious threat to the life safety of the operators.

[0003] In order to effectively prevent such accidents, the industry generally adopts the measure of adding nitrogen inside the equipment. As an inert gas, nitrogen can effectively isolate the entry of oxygen (air) and reduce the concentration of oxygen inside the equipment, thus forming an environment that is not easy to cause an explosion. In this way, even if static electricity or friction sparks are generated inside the equipment, they cannot cause an explosion due to the lack of sufficient oxygen support, thus effectively avoiding the occurrence of flash explosion accidents.

[0004] In the current process, in order to achieve nitrogen replenishment, a nitrogen pipe is usually installed on the equipment to directly supply nitrogen to the inside of the equipment. In order to ensure the stability of the nitrogen pressure and avoid damage to the equipment caused by excessively high or low pressure, a pressure reducing valve or pneumatic triplex is generally installed on the nitrogen inlet pipeline to control the pressure. This method has been widely used in some equipment with good airtightness, such as storage tanks and storage tanks, and has achieved good results.

[0005] However, for centrifuge equipment, since it is not a closed device, during the centrifugal dehydration process, as the material enters and exits and rotates, the loss of nitrogen will be relatively large. This means that every time the centrifugal dehydration is performed, the operator needs to frequently open and close the nitrogen valve to ensure that there is always enough nitrogen protection inside the equipment. This not only increases the complexity of the operation, but also may affect the dehydration efficiency and may even cause new safety hazards due to improper operation. Summary of the invention

[0006] In view of this, the purpose of the present invention is to overcome the deficiencies in the related art. The present invention provides a centrifuge protection device and a centrifuge.

[0007] The present invention provides the following technical solutions:

[0008] A centrifuge protection device is used on a centrifuge body. The centrifuge protection device comprises an air supply pipe, an air outlet pipe, a blocking component, an adjusting component and a control component.

[0009] One end of the gas pipe is used to communicate with the gas inlet of the centrifuge body, and the other end of the gas pipe is used to communicate with the gas supply equipment, and the gas supply equipment is used to provide inert gas; one end of the gas outlet pipe is used to communicate with the gas outlet of the centrifuge body; the plugging component is connected to the end of the gas outlet pipe away from the gas outlet; the regulating component is arranged on the gas pipe, and the regulating component is used to adjust the gas delivery speed in the gas pipe; the control component includes a control component and an air pressure sensor, and the air pressure sensor is arranged on the plugging component, and the control component is electrically connected to the regulating component and the air pressure sensor respectively; the control component is used to adjust and control the regulating component according to the data transmitted by the air pressure sensor, so that the air pressure in the centrifuge body is greater than the external air pressure.

[0010] As a further improvement of the above technical solution, a first regulating pipe and a second regulating pipe are provided in parallel on the gas transmission pipe, and the regulating assembly includes a first switch valve, a second switch valve, and a regulating valve. The first switch valve is arranged on the first regulating pipe, and the first switch valve and the regulating valve are arranged in series on the second regulating pipe; the control component is electrically connected to the first switch valve, the second switch valve, and the regulating valve, respectively.

[0011] As a further improvement of the above technical solution, both the first regulating pipe and the second regulating pipe are provided with a check valve.

[0012] As a further improvement of the above technical solution, the blocking assembly includes a liquid-sealed tank, an exhaust pipe, and a drain pipe. The liquid-sealed tank is used to store liquid discharged from the centrifuge body. The exhaust pipe is inserted into the liquid-sealed tank from the side wall of the liquid-sealed tank, and the end of the exhaust pipe away from the exhaust port is located at the bottom of the liquid-sealed tank; one end of the drain pipe is connected to the outside world, and the other end is inserted into the liquid-sealed tank from the side wall of the liquid-sealed tank and is located at the bottom of the liquid-sealed tank; one end of the exhaust pipe is connected to the upper end of the liquid-sealed tank, and the other end of the exhaust pipe is connected to the atmosphere, and a third switch valve is provided on the exhaust pipe; the sensing end of the air pressure sensor is located in the liquid-sealed tank.

[0013] As a further improvement of the above technical solution, the sensing end of the air pressure sensor is located in the exhaust pipe, and the connection position between the air pressure sensor and the exhaust pipe is located between the third switch valve and the liquid sealing tank.

[0014] As a further improvement of the above technical solution, the position at which the air outlet pipe is inserted on the side wall of the liquid-sealed tank is higher than the position at which the drain pipe is inserted on the side wall of the liquid-sealed tank.

[0015] As a further improvement of the above technical solution, a flow meter is provided on the gas transmission pipe.

[0016] The present invention further provides a centrifuge, comprising a centrifuge body and a centrifuge protection device as described in any one of the above, wherein the centrifuge protection device is arranged on the centrifuge body.

[0017] As a further improvement of the above technical solution, an air inlet and an air outlet are provided on the centrifuge body, the air inlet is arranged at the top of the centrifuge body, and the air outlet is located at the bottom of the centrifuge body.

[0018] As a further improvement of the above technical solution, the centrifuge also includes a gas supply device, which provides inert gas to the centrifuge body.

[0019] Compared with the related art, the beneficial effects of the present invention are:

[0020] The centrifuge protection device provided by the present invention is installed on the centrifuge body to deal with the safety issues when flammable and explosive solvents (such as materials such as alcohols and benzene) are involved in the centrifugal processing process. In actual operation, it is first necessary to open the passage of the delivery pipe and the blocking component to ensure that the gas flow path is unobstructed. Subsequently, the gas supply device is started, and the inert gas is sent in through the gas delivery pipe, and passes through the air inlet of the centrifuge body in sequence, and finally enters the inside of the centrifuge body. In this process, the original air in the centrifuge body will be squeezed and discharged by the inert gas, and its discharge path is the gas outlet, the outlet pipe and the blocking component of the centrifuge body until it is finally completely discharged.

[0021] After the inert gas is continuously delivered to the centrifuge body for a period of time, the air in the centrifuge body can be completely replaced. At this time, it is necessary to close the connection between the sealing component and the atmosphere to prevent outside air from entering again. Then, continue to input inert gas into the centrifuge body through the gas pipe to continuously increase the air pressure in the centrifuge body. During this process, the air pressure sensor will monitor the air pressure in the sealing component, that is, in the centrifuge body, in real time. When the air pressure value in the centrifuge body reaches the preset value in the control component, that is, it is greater than a certain value of the ambient air pressure, the boost stage is declared complete, and the centrifuge is allowed to run.

[0022] The control unit will precisely control the adjustment components according to the data transmitted by the air pressure sensor, ensuring that the gas pipe can continuously and dynamically input inert gas into the centrifuge. In this way, the air pressure inside the centrifuge body can remain stable, ensuring safety, whether in the stages of feeding, dehydration or cleaning, where contact with the outside world may occur.

[0023] In particular, when the centrifuge is unloading, the discharge port will open, causing the internal air pressure of the centrifuge body to decrease. At this time, the air pressure sensor will temporarily stop air pressure monitoring, and the control unit will directly adjust the adjustment component to maximize the gas delivery speed in the gas pipe, thereby achieving rapid filling of the inert gas in the centrifuge body. After the material is unloaded, the centrifuge can enter the next working cycle.

[0024] Through the above series of operation processes, it can be ensured that the centrifuge is always filled with inert gas in any working state. In this way, not only can the oxygen concentration in the centrifuge body be effectively reduced, but also the occurrence of flash explosion accidents can be effectively avoided. At the same time, by limiting the air pressure value in the centrifuge body to be greater than the ambient air pressure, even if the centrifuge body is filled with inert gas, it can maintain a state of overflow, thereby effectively preventing the outside air from entering through the assembly gaps of the centrifuge body's discharge port, feed cover and other parts, further ensuring the inert gas concentration in the centrifuge and improving the safety of the centrifuge.

[0025] In addition, by setting a plugging component at the outlet of the centrifuge body, the leakage and overflow of inert gas can be greatly reduced, thereby improving the efficiency of inert gas use. This design not only helps to reduce production costs, but also further ensures the safety and stability of the centrifuge during operation.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a centrifuge protection device from one perspective in one embodiment of the present invention is shown.

[0029] Description of main component symbols:

[0030] 100-centrifuge body; 110-air inlet; 120-air outlet; 130-discharge port; 200-air transmission pipe; 210-first regulating pipe; 220-second regulating pipe; 230-flow meter; 300-air outlet pipe; 400-sealing assembly; 410-liquid seal tank; 420-exhaust pipe; 421-third switch valve; 430-drain pipe; 500-regulating assembly; 510-first switch valve; 520-second switch valve; 530-regulating valve; 540-check valve; 600-control assembly; 610-air pressure sensor; 620-control part. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Example 1

[0037] like Figure 1 As shown, this embodiment provides a centrifuge protection device, which is used on a centrifuge body 100. The centrifuge protection device includes an air supply pipe 200, an air outlet pipe 300, a blocking component 400, an adjustment component 500, and a control component 600.

[0038] One end of the gas pipe 200 is used to communicate with the gas inlet 110 of the centrifuge body 100, and the other end of the gas pipe 200 is used to communicate with the gas supply device, and the gas supply device is used to provide inert gas; one end of the gas outlet pipe 300 is used to communicate with the gas outlet 120 of the centrifuge body 100; the blocking component 400 is connected to the end of the gas outlet pipe 300 away from the gas outlet 120; the regulating component 500 is arranged on the gas pipe 200, and the regulating component 500 is used to Adjust the gas delivery speed in the gas pipe 200; the control component 600 includes a control component 620 and an air pressure sensor 610; the air pressure sensor 610 is arranged on the blocking component 400, and the control component 620 is electrically connected to the adjustment component 500 and the air pressure sensor 610 respectively; the control component 620 is used to adjust and control the adjustment component 500 according to the data transmitted by the air pressure sensor 610, so that the air pressure in the centrifuge body 100 is greater than the external air pressure.

[0039] The centrifuge protection device provided in the present embodiment is installed on the centrifuge body 100 to deal with the safety issues when involving inflammable and explosive solvents (such as materials such as alcohols and benzene) during the centrifugal processing. In actual operation, it is first necessary to open the passage of the delivery pipe and the plugging assembly 400 to ensure that the gas flow path is unobstructed. Subsequently, the gas supply device is started, and the inert gas is sent in through the gas delivery pipe 200, and passes through the air inlet 110 of the centrifuge body 100 in sequence, and finally enters the inside of the centrifuge body 100. In this process, the original air in the centrifuge body 100 will be squeezed and discharged by the inert gas, and its discharge path is the gas outlet 120, the gas outlet pipe 300 and the plugging assembly 400 of the centrifuge body 100, until it is finally completely discharged.

[0040] After the inert gas is continuously delivered to the centrifuge body 100 for a period of time, the air in the centrifuge body 100 can be completely replaced. The gas replacement time can be calculated according to the equipment volume and the flow rate of nitrogen. The general replacement time is 3-5min, and the replacement is completed. At this time, it is necessary to close the connection between the plugging component 400 and the atmosphere to prevent the outside air from entering again. Then, continue to input inert gas into the centrifuge body 100 through the gas pipe 200, so that the air pressure in the centrifuge body 100 continues to rise. In this process, the air pressure sensor 610 can monitor the air pressure in the plugging component 400, that is, in the centrifuge body 100 in real time. When the air pressure value in the centrifuge body 100 reaches the value preset in the control part 620, that is, greater than a certain value of the ambient air pressure, the boost stage is completed, and the centrifuge body 100 is allowed to run.

[0041] The control unit 620 will adjust the regulating assembly 500 according to the data transmitted by the air pressure sensor 610, so as to ensure that the air pipe 200 can continuously and dynamically input the inert gas into the centrifuge body 100. In this way, the air pressure inside the centrifuge body 100 can be kept stable, whether in the stage of feeding, dehydration or cleaning, where contact with the outside world may occur, thereby ensuring safety.

[0042] In particular, when the centrifuge body 100 is unloading, the discharge port 130 will open, thereby causing the internal air pressure of the centrifuge body 100 to decrease. At this time, the air pressure sensor 610 will suspend air pressure monitoring, and the control component 620 will directly adjust the adjustment component 500 to maximize the gas delivery speed in the gas delivery pipe 200, thereby realizing the rapid filling of the inert gas in the centrifuge body 100. After the material is unloaded, the centrifuge body 100 can enter the next working cycle.

[0043] Through the above series of operation processes, it can be ensured that the centrifuge body 100 is always filled with inert gas in any working state. In this way, not only can the oxygen concentration in the centrifuge body 100 be effectively reduced, but also the occurrence of flash explosion accidents can be effectively avoided. At the same time, by limiting the air pressure value in the centrifuge body 100 to be greater than the ambient air pressure, even if the centrifuge body 100 is filled with inert gas, it can maintain a state of overflow, thereby effectively preventing the outside air from entering from the assembly gaps of the centrifuge body 100's discharge port 130, feed cover and other components, further ensuring the concentration of inert gas in the centrifuge body 100, and improving the safety of the use of the centrifuge body 100.

[0044] In addition, by providing the plugging assembly 400 in communication with the gas outlet 120 of the centrifuge body 100, the leakage and overflow of the inert gas can be greatly reduced, thereby improving the efficiency of using the inert gas. This design not only helps to reduce production costs, but also further ensures the stability of the centrifuge body 100 during operation.

[0045] In some specific embodiments, the gas delivery pipe 200 is provided with a first regulating pipe 210 and a second regulating pipe 220 in parallel, the regulating assembly 500 includes a first switch valve 510, a second switch valve 520, and a regulating valve 530, the first switch valve 510 is provided on the first regulating pipe 210, the first switch valve 510 and the regulating valve 530 are provided in series on the second regulating pipe 220; the control member 620 is respectively electrically connected to the first switch valve 510, the second switch valve 520, and the regulating valve 530. In actual operation, the control member 620 can quickly improve the efficiency of the inert gas passing into the centrifuge body 100 by opening the first switch valve 510 alone, or opening the first switch valve 510 and the second switch valve 520 at the same time.

[0046] On the other hand, when the flow rate of the inert gas needs to be adjusted more finely, the control member 620 will first close the first switch valve 510, then open the second switch valve 520, and then accurately adjust the regulating valve 530 on the second regulating pipe 220. This step-by-step operation ensures that the flow rate of the inert gas passing through the gas pipe 200 can be accurately and stably controlled, thereby meeting the specific requirements of the centrifuge body 100 for the flow rate of the inert gas at different working stages.

[0047] By setting the first regulating tube 210 and the second regulating tube 220 in parallel, not only a dual regulating path for the inert gas flow is realized, but more importantly, it enables the regulating component 500 to switch quickly and smoothly between the two regulating modes.

[0048] Specifically, the control unit 620, as the "brain" of the entire system, is responsible for receiving signals from various sensors and performing logical judgment and processing according to preset programs and algorithms, thereby achieving precise control of the entire gas transmission system. In specific implementation, the control unit 620 can adopt a variety of structural forms, one of the more common and powerful options is a PLC (programmable logic controller) control board.

[0049] The PLC control board has been widely used in the field of industrial automation due to its high reliability, powerful programming ability and easy expansion. It can not only realize complex logic control, but also seamlessly connect with various sensors and actuators to realize real-time data collection and processing. In the control component 600, the PLC control board will receive real-time data from the air pressure sensor 610, which reflects the pressure state of the gas in the gas pipeline 200. Through the built-in algorithm and program, the PLC control board can quickly analyze and process the air pressure data, and issue corresponding control instructions based on the analysis results to achieve accurate adjustment of parameters such as gas flow and pressure.

[0050] In some specific embodiments, both the first regulating pipe 210 and the second regulating pipe 220 are provided with a check valve 540; as a common fluid control device, the main function of the check valve 540 is to allow the fluid to flow in one direction only and prevent it from flowing in the opposite direction. In this way, when the inert gas is guided through the gas pipeline 200, whether it is through the first regulating pipe 210 or the second regulating pipe 220, the check valve 540 will ensure that it flows in the predetermined direction, effectively avoiding the backflow phenomenon caused by pressure changes or other factors.

[0051] The check valve 540 provided on the first regulating pipe 210 has the main function of protecting the pipe and its connected components from the impact and damage of the backflow gas, thereby ensuring the stability and safety of the use of this embodiment.

[0052] In some specific embodiments, the plugging assembly 400 includes a liquid sealing tank 410, an exhaust pipe 420, and a drain pipe 430. The liquid sealing tank 410 is used to store liquid discharged from the centrifuge body 100. The outlet pipe 300 is inserted into the liquid sealing tank 410 from the side wall of the liquid sealing tank 410. The end of the outlet pipe 300 away from the outlet port 120 is located at the bottom of the liquid sealing tank 410. In this way, when liquid is stored in the liquid sealing tank 410, the liquid will naturally seal the end of the outlet pipe 300 to form a liquid sealing effect. This design not only effectively prevents the gas inside the centrifuge body 100 from leaking before it is completely processed or discharged, but also greatly reduces the waste of inert gas and improves resource utilization efficiency. One end of the drain pipe 430 is connected to the outside, and the other end is inserted into the liquid-sealed tank 410 from the side wall of the liquid-sealed tank 410 and is located at the bottom of the liquid-sealed tank 410. In this way, as the centrifuge body 100 continues to operate, the amount of liquid in the liquid-sealed tank 410 will continue to increase. When a certain liquid level is reached, it can be discharged through the drain pipe 430 to maintain the normal working state of the liquid-sealed tank 410; one end of the exhaust pipe 420 is connected to the upper end of the liquid-sealed tank 410, and the other end of the exhaust pipe 420 is connected to the atmosphere. A third switch valve 421 is provided on the exhaust pipe 420. After the centrifuge body 100 performs air replacement or the work is completed, the third switch valve 421 is opened to discharge the gas in the centrifuge body 100; the sensing end of the air pressure sensor 610 is located in the liquid-sealed tank 410, which is used to monitor the air pressure changes in the liquid-sealed tank 410 and the centrifuge body 100 in real time.

[0053] In some specific embodiments, the sensing end of the air pressure sensor 610 is located in the exhaust pipe 420, and the connection position between the air pressure sensor 610 and the exhaust pipe 420 is located between the third switch valve 421 and the liquid sealing tank 410, so as to prevent the liquid level in the liquid sealing tank 410 from being too high and submerging the sensing end of the air pressure sensor, thereby preventing it from being damaged.

[0054] In some specific embodiments, the position where the outlet pipe 300 is inserted on the side wall of the liquid-sealed tank 410 is higher than the position where the drain pipe 430 is inserted on the side wall of the liquid-sealed tank 410; the reason why the position where the outlet pipe 300 is inserted is set higher than the drain pipe 430 is mainly to ensure that the liquid level in the liquid-sealed tank 410 can always be maintained at a level lower than the position where the outlet pipe 300 is set. The core of this design idea is to prevent the liquid in the liquid-sealed tank 410 from flowing back into the outlet pipe 300 due to pressure changes, fluctuations or other factors under any circumstances. Once the liquid flows back into the outlet pipe 300, it will not only hinder the normal transmission of the gas, but also may cause a series of safety hazards and equipment failures.

[0055] By arranging the gas outlet pipe 300 at a higher position, we can ensure that even when the amount of liquid in the liquid seal tank 410 reaches the maximum, the liquid level will not rise to a level sufficient to touch or submerge the gas outlet pipe 300. In this way, no matter how the liquid in the liquid seal tank 410 changes, the gas outlet pipe 300 can always remain unobstructed, thereby ensuring stable transmission and efficient discharge of gas.

[0056] At the same time, such a design also fully considers the natural flow law and gravity of the liquid in the liquid sealing tank 410. Since the drain pipe 430 is set at a lower position, the liquid in the liquid sealing tank 410 will naturally flow to and accumulate near the drain pipe 430 under the action of gravity. When the liquid level rises to a certain height, the excess liquid will be smoothly discharged through the drain pipe 430, thereby maintaining a stable level of the liquid in the liquid sealing tank 410. This design not only helps to maintain the normal working state of the liquid sealing tank 410, but also effectively prevents equipment failure or safety hazards caused by excessive liquid.

[0057] In some specific embodiments, a flow meter 230 is provided on the gas delivery pipe 200 to measure the flow rate of the inert gas passing through the gas delivery pipe 200 .

[0058] Example 2

[0059] The present invention also provides a centrifuge, wherein the internal capacity and required pressure of the centrifuge are different according to the different materials being processed, and the centrifuge comprises a centrifuge body 100 and the centrifuge protection device described in Example 1. The centrifuge body 100 has all the beneficial effects of the centrifuge protection device, which will not be described in detail herein.

[0060] In some specific embodiments, the centrifuge body 100 is provided with an air inlet 110 and an air outlet 120, wherein the air inlet 110 is arranged at the top of the centrifuge body 100, and the air outlet 120 is located at the bottom of the centrifuge body 100, and the air outlet pipe 300 is located below the centrifuge body 100, so as to avoid the accumulation of liquid in the centrifuge body 100 and ensure the normal operation of the centrifuge body 100.

[0061] In some specific embodiments, the centrifuge further comprises a gas supply device, which provides an inert gas to the centrifuge body 100, and the inert gas is specifically selected as nitrogen. The choice of this gas is not accidental, but is based on its unique chemical properties and cost-effectiveness. Nitrogen is a common inert gas, which is inactive at room temperature and pressure and is not easy to react chemically with other substances, which makes it an ideal choice for protecting sensitive equipment such as the centrifuge body 100. In addition, nitrogen is relatively easy to obtain in industry and has low cost, which provides economic feasibility for large-scale application.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A centrifuge protection device, used on a centrifuge body (100), characterized in that: The centrifuge protection device comprises: an air delivery pipe (200), one end of the air delivery pipe (200) being used to communicate with the air inlet (110) of the centrifuge body (100), and the other end of the air delivery pipe (200) being used to communicate with an air supply device; an air outlet pipe (300), one end of the air outlet pipe (300) being used to communicate with the air outlet (120) of the centrifuge body (100); A blocking component (400), the blocking component (400) being in communication with an end of the air outlet pipe (300) away from the air outlet (120); An adjusting component (500) is arranged on the gas delivery pipe (200), and the adjusting component (500) is used to adjust the gas delivery speed in the gas delivery pipe (200); A control component (600), the control component (600) comprising a control element (620) and an air pressure sensor (610), the air pressure sensor (610) being arranged on the blocking component (400), and the control element (620) being electrically connected to the regulating component (500) and the air pressure sensor (610), respectively; The control component (620) is used to adjust and control the adjustment component (500) according to the data transmitted by the air pressure sensor (610), so that the air pressure in the centrifuge body (100) is greater than the external air pressure.

2. The centrifuge protection device according to claim 1, characterized in that: A first regulating pipe (210) and a second regulating pipe (220) are arranged in parallel on the gas transmission pipe (200); the regulating assembly (500) comprises a first switch valve (510), a second switch valve (520), and a regulating valve (530); the first switch valve (510) is arranged on the first regulating pipe (210); the first switch valve (510) and the regulating valve (530) are arranged in series on the second regulating pipe (220); and the control component (620) is electrically connected to the first switch valve (510), the second switch valve (520), and the regulating valve (530), respectively.

3. The centrifuge protection device according to claim 2, characterized in that: The first regulating pipe (210) and the second regulating pipe (220) are both provided with a check valve (540).

4. The centrifuge protection device according to claim 1, characterized in that: The plugging assembly (400) comprises a liquid sealing tank (410), an exhaust pipe (420), and a drain pipe (430); the liquid sealing tank (410) is used to store liquid discharged from the centrifuge body (100); the exhaust pipe (300) is inserted into the liquid sealing tank (410) from the side wall of the liquid sealing tank (410); the end of the exhaust pipe (300) away from the exhaust port (120) is located at the bottom of the liquid sealing tank (410); the drain pipe (430) ) is connected to the outside, and the other end is inserted into the liquid-sealed tank (410) from the side wall of the liquid-sealed tank (410) and is located at the bottom of the liquid-sealed tank (410); one end of the exhaust pipe (420) is connected to the upper end of the liquid-sealed tank (410), and the other end of the exhaust pipe (420) is connected to the atmosphere, and a third switch valve (421) is provided on the exhaust pipe (420); the sensing end of the air pressure sensor (610) is located in the liquid-sealed tank (410).

5. The centrifuge protection device according to claim 4, characterized in that: The sensing end of the air pressure sensor (610) is located in the exhaust pipe (420), and the connection position between the air pressure sensor (610) and the exhaust pipe (420) is located between the third switch valve (421) and the liquid sealing tank (410).

6. The centrifuge protection device according to claim 4, characterized in that: The position at which the air outlet pipe (300) is inserted on the side wall of the liquid sealing tank (410) is higher than the position at which the drain pipe (430) is inserted on the side wall of the liquid sealing tank (410).

7. The centrifuge protection device according to any one of claims 1 to 6, characterized in that: The gas delivery pipe (200) is provided with a flow meter (230).

8. A centrifuge, characterized in that: It comprises a centrifuge body (100) and a centrifuge protection device according to any one of claims 1 to 7, wherein the centrifuge protection device is arranged on the centrifuge body (100).

9. The centrifuge according to claim 8, characterized in that The centrifuge body (100) is provided with an air inlet (110) and an air outlet (120), wherein the air inlet (110) is arranged at the top of the centrifuge body (100), and the air outlet (120) is located at the bottom of the centrifuge body (100).

10. The centrifuge according to claim 8, characterized in that The centrifuge further comprises a gas supply device, wherein the gas supply device provides inert gas to the centrifuge body (100).

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