A supergravity centrifuge

Abstract

The present invention discloses a high gravity centrifuge, which comprises a base and a frame fixed on the base. A cylindrical centrifugal housing is installed on the frame. An air inlet pipe joint communicating with its inner cavity is arranged on the side ring wall of the centrifugal housing. The air outlet ends of the air inlet pipe joint are arranged along the tangent direction of the side ring wall of the centrifugal housing. A liquid inlet pipe is arranged on the side wall of the centrifugal housing. One end of the liquid inlet pipe extends into the inner cavity of the centrifugal housing and is close to the air outlet end of the air inlet pipe joint, and at least one atomizing nozzle is installed on the extending end of the liquid inlet pipe. A liquid discharge pipe is arranged at the bottom of the centrifugal housing, and an exhaust pipe joint communicating with its inner cavity is connected to one side end face of the centrifugal housing. A cutting rotor mechanism is arranged in the centrifugal housing. The present invention is not only reasonable in design, but also has a high degree of liquid dispersion, and will not form a water film, resulting in the phenomenon of gas dilution or insufficient dissolution.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-liquid mixing, and in particular, to a high-gravity centrifuge. Background Art

[0002] High-gravity technology is mainly used in the fields of gas-liquid mixing and gas-liquid separation. Its principle in the field of gas-liquid mixing is that gas enters the machine body, and then liquid is sprayed into the machine body in a mist form at the same time. The high-speed rotating rotor structure fully disperses the misty liquid, and then combines with fluid mechanics to make the introduced gas fully combine with the dispersed micro-droplets to achieve the purpose of mixing or dilution, so that the discharged gas meets the purification standard. The mixing efficiency of the existing high-gravity mixers is not high. On the one hand, it is because the design itself is not reasonable enough, and on the other hand, it is because the liquid is not fully dispersed, which is likely to form a water film, resulting in insufficient gas dilution or dissolution. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-gravity centrifuge, which is not only reasonably designed, but also has a high degree of liquid dispersion, and does not form a water film, resulting in insufficient gas dilution or dissolution.

[0004] The embodiment of the present invention is implemented as follows: A high-gravity centrifuge includes a base and a frame fixed on the base. A cylindrical centrifugal housing is installed on the frame. An air inlet pipe joint communicating with its inner cavity is provided on the side ring wall of the centrifugal housing. The air outlet ends of the air inlet pipe joint are arranged along the tangent direction of the side ring wall of the centrifugal housing. A liquid inlet pipe is provided on the side wall of the centrifugal housing. One end of the liquid inlet pipe extends into the inner cavity of the centrifugal housing and is close to the air outlet end of the air inlet pipe joint, and at least one atomizing nozzle is installed on the extending end of the liquid inlet pipe. A drain pipe is provided at the bottom of the centrifugal housing, and an exhaust pipe joint communicating with its inner cavity is connected to one end face of the centrifugal housing. A cutting rotor mechanism is provided in the centrifugal housing. The cutting rotor mechanism includes a rotating shaft, a front end plate and a rear end plate. The rotating shaft is rotatably arranged in the centrifugal housing along the central axis of the centrifugal housing, and one end of the rotating shaft far from the exhaust pipe joint passes through the centrifugal housing and is sleeved with a pulley. A power assembly for driving the pulley to rotate is installed on the frame. Both the front end plate and the rear end plate are located in the centrifugal housing. The rear end plate is fixedly sleeved on one end of the rotating shaft far from the exhaust pipe joint, and the front end plate is sleeved on one end of the rotating shaft close to the exhaust pipe joint. The front end plate has air passing holes through which gas can pass. A plurality of cutting core rods are arranged between the front end plate and the rear end plate. The plurality of cutting core rods are annularly and evenly arranged around the circumference of the rotating shaft between the front end plate and the rear end plate. A plurality of cutting gaskets are provided on each cutting core rod.

[0005] Further, the cutting gasket is annular in shape, and the cutting gasket is movably sleeved on the cutting mandrel. A positioning sleeve is provided between every two adjacent cutting gaskets on each cutting mandrel. The positioning sleeve is movably sleeved on the cutting mandrel, and the adjacent two positioning sleeves press and stabilize the cutting gasket therebetween. The two ends of the cutting mandrel are respectively detachably connected to the front end plate and the rear end plate.

[0006] Further, threads are machined at both ends of the cutting mandrel, and both ends of the cutting mandrel respectively pass through the front end plate and the rear end plate and are fixed by nuts.

[0007] Further, all the cutting mandrels are arranged in at least two layers of rings, and the cutting gaskets on adjacent two cutting mandrels are arranged staggeredly.

[0008] Further, the cutting rotor mechanism further includes at least one middle end plate. At least one middle end plate is sleeved on the rotating shaft between the front end plate and the rear end plate, and all the middle end plates are parallel to each other. Each cutting mandrel passes through all the middle end plates.

[0009] Further, the cutting rotor mechanism further includes at least one middle end plate. At least one middle end plate is sleeved on the rotating shaft between the front end plate and the rear end plate, and all the middle end plates are parallel to each other. Each cutting mandrel passes through all the middle end plates. Positioning sleeves are arranged on both sides of the position where the cutting mandrel passes through the middle end plate, and the two positioning sleeves on both sides press and stabilize the middle end plate therebetween.

[0010] Further, the middle end plate is an annular plate, and the inner hole diameter dimension of the middle end plate is larger than the diameter dimension of the rotating shaft.

[0011] Further, the middle end plate is an annular plate, and a collar concentric with it is arranged in the inner hole of the middle end plate. A plurality of connecting reinforcing ribs are fixed between the outer wall of the collar and the inner hole wall of the middle end plate. The plurality of connecting reinforcing ribs are evenly distributed along the circumferential direction of the collar, and the middle end plate is fixedly sleeved on the rotating shaft through the collar.

[0012] Further, a first water baffle and a second water baffle are arranged in the centrifugal housing. Both the first water baffle and the second water baffle are annular. The first water baffle is located on the side of the front end plate away from the exhaust pipe joint, and the inner diameter dimension of the first water baffle is adapted to the outer diameter dimension of the ring formed by all the cutting mandrels arranged. A first sealing ring is fixed between one end face of the first water baffle and the inner wall of the end face of the centrifugal housing close to the exhaust pipe joint. The second water baffle is located on the side of the rear end plate close to the exhaust pipe joint, and the inner diameter dimension of the second water baffle is adapted to the outer diameter dimension of the ring formed by all the cutting mandrels arranged. A second sealing ring is fixed between one end face of the second water baffle and the inner wall of the end face of the centrifugal housing away from the exhaust pipe joint.

[0013] Further, a gas volume control plate is arranged in the exhaust pipe joint.

[0014] The beneficial effects of the embodiments of the present invention are as follows:

[0015] The high-gravity centrifuge provided by the embodiments of the present invention is provided with a tangentially arranged intake pipe joint on the centrifugal housing. The liquid is introduced into the exhaust end of the intake pipe joint, and preliminary mixing and dissolution dilution can be directly carried out in advance. The solution after the preliminary mixing of the two and the remaining gas and liquid that have not been mixed in time pass through the cutting rotor mechanism from the inner cavity side wall along the inner cavity center, and are dispersed by the high-speed rotating cutting mandrel and cutting gasket and then fully mixed again. On the one hand, it can prevent the formation of a water film. On the other hand, the high-speed cutting mandrel and cutting gasket not only have a dispersing effect, reducing the volume of the liquid and being able to fully mix with the gas, but also the high-speed air flow can enable full combination between the gas and the liquid, and finally discharge from the inner cavity center of the centrifugal housing along the exhaust pipe joint.

[0016] Generally speaking, the high-gravity centrifuge provided by the embodiments of the present invention is rationally designed by using the principles of primary gas-liquid combination and secondary combination, and has high overall symmetry. Combining with the concept of fluid mechanics, it can achieve very sufficient mixing and gas-liquid dissolution effects, so that it can meet the emission standards after one-time purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of the high-gravity centrifuge provided by the embodiments of the present invention;

[0019] Figure 2 is a front view schematic diagram of the high-gravity centrifuge with partial section provided by the embodiments of the present invention;

[0020] Figure 3 is a schematic structural diagram of the cutting rotor mechanism provided by the embodiments of the present invention;

[0021] Figure 4 is Figure 3 an enlarged schematic diagram of part A of

[0022] Figure 5 is a schematic structural diagram of the middle end plate provided by the embodiments of the present invention;

[0023] Figure 6 is a schematic structural diagram of the middle end plate provided by another embodiment of the present invention.

[0024] Icons: 101 - Base; 102 - Frame; 103 - Centrifugal housing; 104 - Inlet pipe joint; 105 - Exhaust pipe joint; 106 - Gas volume control board; 107 - Pulley; 108 - Power motor; 109 - Cutting rotor mechanism; 110 - Drain pipe; 1091 - Rotating shaft; 1092 - Rear end plate; 1093 - Middle end plate; 1094 - Front end plate; 1095 - Cutting mandrel; 1096 - First sealing ring; 1097 - First water baffle; 1098 - Positioning sleeve; 1099 - Cutting gasket. Detailed implementation

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0029] In addition, terms such as "parallel" and "perpendicular" do not mean that the components are required to be absolutely parallel or perpendicular, but can be slightly inclined. For example, "parallel" only means that its direction is more parallel relative to "perpendicular", and does not mean that the structure must be completely parallel, but can be slightly inclined.

[0030] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] Terms such as "substantially" and "basically" are intended to indicate that the relevant content does not require absolute precision, but there can be certain deviations. For example, "substantially equal" does not only mean absolute equality. In actual production and operation processes, it is difficult to achieve absolute "equality", and generally there are certain deviations. Therefore, in addition to absolute equality, "substantially equal" also includes the above-mentioned situations with certain deviations. Taking this as an example, in other cases, unless otherwise specified, terms such as "substantially" and "basically" have similar meanings to the above.

[0032] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" 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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] Embodiment

[0034] Please refer to Figure 1 and Figure 2, the supergravity centrifuge provided in this embodiment includes a base 101 and a frame 102 fixed on the base 101. The frame 102 is preferably a hollow support. A cylindrical centrifugal housing 103 is installed on the frame 102. The cylindrical centrifugal housing 103 is more in line with the design concept of fluid mechanics. An air inlet pipe joint 104 communicating with its inner cavity is provided on the side ring wall of the centrifugal housing 103. In this embodiment, the air outlet ends of the air inlet pipe joint 104 are arranged along the tangent direction of the side ring wall of the centrifugal housing 103, which means that the gas introduced into the air inlet pipe joint 104 can enter along the tangential direction of the centrifugal housing 103, so that the gas can make a short-distance circular motion along the inner wall of the centrifugal housing 103. The air outlet end of the air inlet pipe joint 104 refers to the end where the air inlet pipe joint 104 discharges gas, and this end communicates with the side wall of the centrifugal housing 103. A liquid inlet pipe (not shown) is provided on the side wall of the centrifugal housing 103. One end of the liquid inlet pipe extends into the inner cavity of the centrifugal housing 103 and is close to the air outlet end of the air inlet pipe joint 104, and at least one atomizing nozzle is installed on the extending end of the liquid inlet pipe. The number of atomizing nozzles can be one, two or more, which is mainly selected according to the size of the liquid discharge volume. The liquid in the liquid inlet pipe is sprayed out in the form of droplets through the atomizing nozzle, and is initially mixed with the gas discharged from the air inlet pipe joint 104 for the first time. And the inertial force of the gas can carry some droplets to continue to make a short-distance circular motion along the inner wall of the centrifugal housing 103. After extending the mixing time at the outer edge part of the inner cavity of the centrifugal housing 103, it then enters the center of the inner cavity of the centrifugal housing 103 for secondary mixing.

[0035] A drain pipe 110 is provided at the bottom of the centrifugal housing 103. The bottom refers to the lowest point of the side wall of the horizontally placed centrifugal housing 103. When the liquid converges, it can be discharged through the drain pipe 110. A water storage tank is arranged at the center of the frame 102 to directly collect the discharged liquid. Then, the collected liquid is introduced into the inlet pipe through a water pump to achieve the purpose of recycling. An exhaust pipe joint 105 communicating with its inner cavity is connected to one end face of the centrifugal housing 103. A cutting rotor mechanism 109 is arranged in the centrifugal housing 103. The cutting rotor mechanism 109 is generally cylindrical, equivalent to the internal rotating mechanism of the centrifugal housing 103. It can divide the inner cavity of the centrifugal housing 103 into two inner and outer cavities. The inlet pipe joint 104 is located in the outer cavity, mainly for the preliminary mixing of gas and liquid. The inner cavity is mainly for the secondary full mixing of the liquid that has been fully dispersed by the cutting rotor mechanism 109. Especially after the unit volume of the liquid becomes smaller, it is easier to be fully mixed with the gas under the action of wind flow. The gas after the secondary mixing is discharged from the exhaust pipe joint 105. An eliminator (i.e., a suction fan) is arranged on the side of the exhaust pipe joint 105 away from the centrifugal housing 103 to direct the extraction of the gas diluted or neutralized and purified by the liquid. In addition, a gas volume control plate 106 is arranged in the exhaust pipe joint 105. The gas volume control plate 106 is preferably a circular plate matching the longitudinal section shape of the exhaust pipe joint 105. Through holes are processed on the circular plate for the gas to pass through, and the area of the through holes can be adjusted or changed. One way is to fix additional baffles on the circular plate with bolts. Another way is that the gas volume control plate 106 is formed by two plates inserted into each other movably. One plate is fixedly connected to the inner cavity of the exhaust pipe joint 105, and the other plate forms the through hole with the inner cavity of the exhaust pipe joint 105. By sliding or adjusting the position of the other plate, the size of the through hole can be adjusted to change the total amount of gas passing through.

[0036] Please refer to Figure 3 and Figure 4, the cutting rotor mechanism 109 includes a rotating shaft 1091, a front end plate 1094 and a rear end plate 1092. The cutting rotor mechanism 109 is preferably made of corrosion-resistant stainless steel. The rotating shaft 1091 is rotatably arranged in the centrifugal housing 103 along the central axis of the centrifugal housing 103 through bearings. One end of the rotating shaft 1091 away from the exhaust pipe joint 105 passes through the centrifugal housing 103 and is sleeved with a pulley 108. One end of the rotating shaft 1091 close to the exhaust pipe joint 105 is rotatably connected to the side wall of the centrifugal housing 103 through a bushing. A power assembly for driving the pulley 108 to rotate is installed on the base 101. Here, the power assembly mainly adopts a motor-belt assembly, that is, it includes a power motor 108 and a driving wheel installed at the output end of the power motor 108. The power motor 108 is installed on the base 101. The driving wheel and the pulley 108 are synchronously driven by a transmission belt, so as to drive the rotating shaft 1091 to rotate at a high speed. Of course, the power assembly can also be that the power motor 108 directly drives the rotating shaft 1091 to rotate. The power assembly only needs to meet the purpose of driving the rotating shaft 1091 to rotate at a high speed with a conventional structure.

[0037] In the traditional rotor structure, blades are integrated on the rotating shaft 1091. The high-speed rotating blades form a swirling flow, under the action of which the liquid and gas collide and combine with each other. However, this single swirling flow function not only has an insufficient combination effect, but also is prone to have mixing dead corners, and there are some places that cannot be affected by the swirling flow, resulting in insufficient gas-liquid combination. The cutting rotor mechanism 109 in this embodiment not only has the function of generating a swirling flow, but also has the function of large-area cutting, making the volume of the liquid smaller after being cut or collided, and being more capable of fully mixing with the gas under the action of the swirling flow. At the same time, in the traditional rotor structure, a liquid film is easily formed in the housing, that is, the liquid is concentrated in a certain place and cannot be fully dispersed, thus causing an obstacle to the combination with a large area of gas, resulting in insufficient gas-liquid combination. The cutting rotor mechanism 109 in this embodiment also has the function of preventing the generation of a liquid film. Specifically, the front end plate 1094 and the rear end plate 1092 are both located in the centrifugal housing 103. The front end plate 1094 and the rear end plate 1092 are preferably annular plates. The rear end plate 1092 is fixedly sleeved on one end of the rotating shaft 1091 away from the exhaust pipe joint 105, that is, the inner hole of the rear end plate 1092 is (gap) fitted with the rotating shaft 1091 and connected by a flat key. At the same time, the radial direction of the rear end plate 1092 is perpendicular to the axial direction of the rotating shaft 1091. The front end plate 1094 is sleeved on one end of the rotating shaft 1091 close to the exhaust pipe joint 105, and this sleeving method refers to a movable sleeving, that is, the inner hole diameter of the front end plate 1094 is larger than the diameter of the rotating shaft 1091, so that there are air passing holes on the front end plate 1094 through which the gas after secondary full mixing can be discharged into the exhaust pipe joint 105. Similarly, the radial direction of the front end plate 1094 is perpendicular to the axial direction of the rotating shaft 1091. In order to fully collide and disperse the liquid spray, prevent the formation of a liquid film and make its volume smaller, a plurality of cutting core rods 1095 are arranged between the front end plate 1094 and the rear end plate 1092. The plurality of cutting core rods 1095 are arranged in a ring shape evenly around the circumference of the rotating shaft 1091 between the front end plate 1094 and the rear end plate 1092. A plurality of cutting gaskets 1099 are arranged on each cutting core rod 1095. By adding the cutting core rods 1095 and the cutting gaskets 1099 and arranging the plurality of cutting core rods 1095 in a cage structure, not only can a strong swirling flow be generated during high-speed rotation, but also the liquid spray can be collided and cut in a large area, so as to achieve the purpose of preventing the generation of a liquid film and making the volume of the liquid droplets smaller. The tiny liquid droplets can spread out in a large area and fully mix with the gas under the action of the swirling flow, dissolve the soluble components in the gas, and adsorb and precipitate the particulate impurities in the gas, so as to achieve the purpose of gas purification.

[0038] To facilitate the disassembly and assembly of the cutting gasket 1099 on the single cutting mandrel 1095, the cutting gasket 1099 is in a ring shape and is movably sleeved on the cutting mandrel 1095. This movable sleeve allows the cutting gasket 1099 to be sleeved on the cutting mandrel 1095 and slide freely. Taking the single cutting mandrel 1095 as an example, a positioning sleeve 1098 is provided between every two adjacent cutting gaskets 1099 on each cutting mandrel 1095. The positioning sleeve 1098 is movably sleeved on the cutting mandrel 1095, and the adjacent two positioning sleeves 1098 press and stabilize the cutting gasket 1099 therebetween. That is to say, all the positioning sleeves 1098 and all the cutting gaskets 1099 are arranged at intervals. Every two adjacent positioning sleeves 1098 stably abut against the cutting gasket 1099 therebetween. It can also be said that every two adjacent cutting gaskets 1099 stably abut against the positioning sleeve 1098 therebetween. This method facilitates the disassembly or installation of the positioning sleeve 1098 and the cutting gasket 1099 on the cutting mandrel 1095 in sequence, and at the same time ensures that the cutting gaskets 1099 are stably arranged at intervals on the cutting mandrel 1095. Both ends of the cutting mandrel 1095 are detachably connected to the front end plate 1094 and the rear end plate 1092 respectively. The detachable connection method can be screw connection, riveting or snap connection, etc. In this embodiment, threads are processed at both ends of the cutting mandrel 1095, and both ends (threaded ends) of the cutting mandrel 1095 pass through the front end plate 1094 and the rear end plate 1092 respectively and are fixed by nuts. The function of the nuts is to cooperate with the threaded ends of the cutting mandrel 1095 to achieve the fastening purpose when the end of the cutting mandrel 1095 passes through the corresponding front end plate 1094 or rear end plate 1092.

[0039] In order to achieve a larger cutting range for the cutting mandrels 1095, all the cutting mandrels 1095 are arranged in at least two layers of rings. In this embodiment, they are arranged in three layers of rings. In addition, the cutting gaskets 1099 on every two adjacent cutting mandrels 1095 are arranged staggeredly, that is, whether it is for the adjacent cutting mandrels 1095 in the same ring layer or the adjacent cutting mandrels 1095 in different ring layers, the cutting gaskets 1099 on every two adjacent cutting mandrels 1095 are arranged staggeredly. The staggered arrangement here means that they are arranged in different radial planes of the rotating shaft 1091, so as to achieve a larger and more sufficient cutting range. Through the research of the inventor, it is found that when the axial length of the ultraheavy centrifuge is short, only by adding a front end plate 1094 and a rear end plate 1092 can the stable cutting of the cutting mandrels 1095 be ensured. However, when the axial length of the ultraheavy centrifuge is long, in order to ensure the requirement of sufficient cutting in a large range, the distance between the front end plate 1094 and the rear end plate 1092 will be too long. At this time, the middle part of the cutting mandrels 1095 loses support, which will cause the phenomenon of swinging rotation during high-speed rotation. In order to overcome this problem, the cutting rotor mechanism 109 further includes at least one middle end plate 1093. The number of the middle end plates 1093 is determined according to the axial length of the ultraheavy centrifuge, and all the middle end plates 1093 are parallel to each other. In this embodiment, there is one middle end plate 1093, and this middle end plate 1093 is sleeved on the rotating shaft 1091 between the front end plate 1094 and the rear end plate 1092. The sleeving here is the same as the way of the front end plate 1094 being movably sleeved, allowing gas and droplets to pass through. Each cutting mandrel 1095 passes through the middle end plate 1093, that is, the middle end plate 1093 can support the middle parts of all the cutting mandrels 1095.

[0040] In this embodiment, a fixed connection is adopted between the middle end plate 1093 and each cutting mandrel 1095, such as interference fit or welding, etc. In another embodiment, a movable socket connection is adopted between the middle end plate 1093 and each cutting mandrel 1095. Specifically, each cutting mandrel 1095 movably passes through the middle end plate 1093, and positioning sleeves 1098 are arranged on both sides at the position where the cutting mandrel 1095 passes through the middle end plate 1093. The positioning sleeves 1098 on both sides press and stabilize the middle end plate 1093 therebetween, that is, the middle end plate 1093 is similar to the way the cutting gasket 1099 is fixed, and both achieve stable installation by means of mutual abutment. This way is convenient for overall disassembly, assembly and layout. In this embodiment, please refer to Figure 6 , the middle end plate 1093 is an annular plate, and the inner hole diameter size of the middle end plate 1093 is larger than the diameter size of the rotating shaft 1091. The gap between the inner hole of the middle end plate 1093 and the outside of the rotating shaft 1091 is used for the droplets and gas after secondary mixing to pass through. In another embodiment, please refer to Figure 5, the middle end plate 1093 is an annular plate, and a collar concentric with it is arranged in the inner hole of the middle end plate 1093. Three connecting reinforcing ribs are fixed between the outer ring wall of the collar and the inner hole wall of the middle end 1093. The three connecting reinforcing ribs are evenly distributed along the circumferential direction of the collar. The middle end plate 1093 is fixedly sleeved on the rotating shaft 1091 through the collar. The middle end plate 1093 in this form can ensure better connection stability of the cutting rotor mechanism 109 as a whole.

[0041] Although the cutting rotor mechanism 109 covers most of the axial length of the centrifugal housing 103, there will still be a part of the gap. Under the swirling flow action, gas or liquid droplets will escape from this gap, resulting in that this part of the gas or liquid droplets are not subjected to secondary cutting and mixing, that is, they do not meet the full mixing standard. To overcome this problem, a first water baffle 1097 and a second water baffle are arranged in the centrifugal housing 103. Both the first water baffle 1097 and the second water baffle are annular. The first water baffle 1097 is located on the side of the front end plate 1094 away from the exhaust pipe joint 105, and the first water baffle 1097 is close to the front end plate 1094, and the distance between the two does not exceed 20 mm. The inner diameter dimension of the first water baffle 1097 is adapted to the outer diameter dimension of the ring formed by the arrangement of all the cutting mandrels 1095. The outer diameter dimension here refers to the outer diameter dimension of the outermost ring formed by the arrangement of the cutting mandrels 1095. The adaptation here means that the dimension difference between the two does not exceed 2 mm, that is, just leave a gap that does not affect each other by friction. A first sealing ring 1096 is fixed between one end face of the first water baffle 1097 and the inner wall of the end face of the centrifugal housing 103 close to the exhaust pipe joint 105. The two end faces of the first sealing ring 1096 are respectively fixedly formed or welded with the inner wall of the centrifugal housing 103 and the end face of the first water baffle 1097. The main function of the first sealing ring 1096 is to prevent liquid droplets or gas from escaping from the gap between the first water baffle 1097 and the inner wall of the centrifugal housing 103 into the exhaust pipe joint 105, so that the liquid droplets or gas pass through the cutting mandrels 1095 and reach the center of the inner cavity of the centrifugal housing 103, and finally are discharged from the exhaust pipe joint 105. Of course, only by setting the first water baffle 1097 and the first sealing ring 1096 can the phenomenon that liquid droplets or gas are discharged without secondary combination be prevented. The addition of the second water baffle is to ensure the symmetry of the positional relationship inside the centrifugal housing 103 and the cutting rotor mechanism 109, so as to ensure a strong, symmetric and non-disordered gas swirling effect. Specifically, the second water baffle is located on the side of the rear end plate 1092 close to the exhaust pipe joint 105. Similarly, the second water baffle is close to the rear end plate 1092, and the distance between the two does not exceed 20 mm. The inner diameter dimension of the second water baffle is adapted to the outer diameter dimension of the ring formed by the arrangement of all the cutting mandrels. A second sealing ring is fixed between one end face of the second water baffle and the inner wall of the end face of the centrifugal housing 103 away from the exhaust pipe joint 105, so as to ensure better structural symmetry.

[0042] The working principle of the high gravity centrifuge provided in this embodiment is as follows: The gas to be purified enters from the intake pipe joint 104. At this time, the liquid inlet pipe is opened, and the liquid is sprayed in the form of droplets at the outlet end of the intake pipe joint 104 inside the centrifugal housing 103, so that the soluble harmful gas in the gas is initially mixed with the liquid to achieve the effect of dilution or neutralization. At this time, the high-speed rotating cutting rotor mechanism 109 drives all the initially combined or uncombined droplets and gas to move towards the centrifugal housing 103. At the same time, the external exhaust fan can accelerate the movement rate of the droplets and gas towards the centrifugal housing 103. When the cutting mandrel 1095 collides with or cuts the droplets, on the one hand, it can prevent the formation of a liquid film, and on the other hand, it can make the liquid volume smaller and the movement rate of the droplets faster, so that they can be combined and mixed with the gas on a large scale under the action of the swirling flow, and finally achieve a quite good dilution or purification effect.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the present invention omits the description of well-known components and processing technologies and processes to avoid unnecessarily limiting the present invention.

Claims

1. A supergravity centrifuge, characterized in that, It includes a base and a frame fixed on the base. A cylindrical centrifugal housing is installed on the frame. An air inlet pipe joint communicating with its inner cavity is arranged on the side ring wall of the centrifugal housing. The outlet ends of the air inlet pipe joint are arranged along the tangent direction of the side ring wall of the centrifugal housing. A liquid inlet pipe is arranged on the side wall of the centrifugal housing. One end of the liquid inlet pipe extends into the inner cavity of the centrifugal housing and is close to the outlet end of the air inlet pipe joint. At least one atomizing nozzle is installed on the extending end of the liquid inlet pipe. A drain pipe is arranged at the bottom of the centrifugal housing. An exhaust pipe joint communicating with its inner cavity is connected to one side end face of the centrifugal housing. A cutting rotor mechanism is arranged in the centrifugal housing. The cutting rotor mechanism includes a rotating shaft, a front end plate and a rear end plate. The rotating shaft is rotatably arranged in the centrifugal housing along the central axis of the centrifugal housing. One end of the rotating shaft away from the exhaust pipe joint passes through the centrifugal housing and is sleeved with a pulley. A power assembly for driving the pulley to rotate is installed on the frame. Both the front end plate and the rear end plate are located in the centrifugal housing. The rear end plate is fixedly sleeved on one end of the rotating shaft away from the exhaust pipe joint. The front end plate is sleeved on one end of the rotating shaft close to the exhaust pipe joint. The front end plate has air passing holes that can allow gas to pass through. A plurality of cutting mandrels are arranged between the front end plate and the rear end plate. The plurality of cutting mandrels are arranged in a circular and uniform manner around the circumference of the rotating shaft between the front end plate and the rear end plate. A plurality of cutting gaskets are arranged on each cutting mandrel; The shape of the cutting gasket is annular, and the cutting gasket is movably sleeved on the cutting mandrel. A positioning sleeve is arranged between adjacent two cutting gaskets on each cutting mandrel. The positioning sleeve is movably sleeved on the cutting mandrel, and the cutting gaskets between adjacent two positioning sleeves are pressed and fixed; Threads are processed at both ends of the cutting mandrel, and both ends of the cutting mandrel pass through the front end plate and the rear end plate respectively and are fixed by nuts; All the cutting mandrels are arranged in at least two layers of rings, and the cutting gaskets on adjacent two cutting mandrels are arranged staggeredly; The cutting rotor mechanism further includes at least one middle end plate. At least one middle end plate is sleeved on the rotating shaft between the front end plate and the rear end plate, and all the middle end plates are parallel to each other. Each cutting mandrel passes through all the middle end plates; The cutting rotor mechanism further includes at least one middle end plate. At least one middle end plate is sleeved on the rotating shaft between the front end plate and the rear end plate, and all the middle end plates are parallel to each other. Each cutting mandrel passes through all the middle end plates. Positioning sleeves are arranged on both sides of the position where the cutting mandrel passes through the middle end plate, and the middle end plate between the two positioning sleeves on both sides is pressed and fixed; The middle end plate is an annular plate, and the inner hole diameter dimension of the middle end plate is larger than the diameter dimension of the rotating shaft; The middle end plate is an annular plate, and a collar concentric with it is arranged in the inner hole of the middle end plate. A plurality of connecting reinforcing ribs are fixed between the outer ring wall of the collar and the inner hole wall of the middle end plate. The plurality of connecting reinforcing ribs are evenly distributed along the circumference of the collar. The middle end plate is fixedly sleeved on the rotating shaft through the collar; A first water baffle and a second water baffle are arranged in the centrifugal housing. Both the first water baffle and the second water baffle are annular. The first water baffle is located on the side of the front end plate away from the exhaust pipe joint, and the inner diameter dimension of the first water baffle is adapted to the outer diameter dimension of the ring formed by the arrangement of all the cutting mandrels. A first sealing ring is fixed between one end face of the first water baffle and the inner wall of the end face of the centrifugal housing close to the exhaust pipe joint. The second water baffle is located on the side of the rear end plate close to the exhaust pipe joint, and the inner diameter dimension of the second water baffle is adapted to the outer diameter dimension of the ring formed by the arrangement of all the cutting mandrels. A second sealing ring is fixed between one end face of the second water baffle and the inner wall of the end face of the centrifugal housing away from the exhaust pipe joint.

2. The supergravity centrifuge according to claim 1, characterized in that, An air volume control plate is arranged in the exhaust pipe joint.

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