Leakage-proof mechanism of centrifugal machine

Abstract

The utility model provides an anti-leakage mechanism of a centrifugal machine, which relates to the technical field of centrifugal machines and comprises two pipelines and fixing bolts, and flange plates are fixedly connected to opposite surfaces of the two pipelines. In the use process, the two pipelines are installed in a butt joint mode through the flange plates, when the two annular sealing rings in the two pipelines abut against each other and deform, the gap between the two pipelines is filled with the annular sealing rings, the sealing effect is achieved, meanwhile, the upper cover body and the lower cover body are fixedly arranged at the butt joint position of the two pipelines, and therefore the two pipelines can be connected in a butt joint mode through the upper cover body and the lower cover body. The sealing cover is located in a sealed space formed by the two cover bodies in a butt joint mode, when leakage occurs at the butt joint position of the pipelines, gas can be blocked by the two sealed cover bodies and prevented from diffusing to the external environment, the dual-sealing effect is achieved, and the situation that under the corrosion effect of external force or conveying media at the butt joint position of the pipelines, conveying gas in the pipelines leaks is effectively avoided; and the anti-leakage effect of the centrifugal machine during gas conveying is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge technical field especially relates to a centrifuge's anti -leakage mechanism. BACKGROUND

[0002] Gas centrifuge is the key equipment to realize gas centrifugation method, which is a special equipment for separating uranium isotopes. To realize isotope separation, gas centrifuge needs to have three conditions: providing stable strong centrifugal force field, continuously feeding and taking materials in a sealed environment, and having high reliability and long life.

[0003] In the prior art, such as Chinese patent CN204261822U gas centrifuge, it includes centrifuge, the hollow shaft both ends of centrifuge are equipped with bearing seat, bearing cover is equipped on bearing seat, packing seal is equipped on hollow shaft, gas discharge hole C is equipped on hollow shaft, the upper end of centrifuge is equipped with connection printing fan and connection air blower, the lower part is equipped with air supply printing cover, the upper end of air supply shell is connected with air supply printing cover, the lower end of air supply shell is connected with side plate, side plate is equipped with air supply port A, the both ends of rotary drum are connected with the rotating shaft on hollow shaft, rotary drum is equipped with gas outlet hole B, the outside of rotary drum is covered with machine shell;The utility model can solve the problem that general centrifuge cannot separate special materials, prevent gas leakage, make the machine run normally, improve the efficiency of centrifugal treatment, reduce material waste, and provide more choices for domestic industrial separation equipment manufacturers.

[0004] In the above-mentioned patent, the packing seal is arranged on the hollow shaft to prevent gas leakage, the internal structure of the gas centrifuge is sealed, and the external gas is sent into by the air blower, but the connection between the pipeline of the centrifuge body and the external pipeline is relatively weak compared to the whole conveying pipeline, and leakage is most likely to occur at the connection between the centrifuge body and the external pipeline under the action of external force or corrosion of the conveying medium. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of anti-leakage mechanisms of centrifuge to solve the problem that the pipeline of centrifuge body and external pipeline connection are relatively weak compared to whole conveying pipeline in prior art, leakage is most likely to occur at the connection between centrifuge body and external pipeline under the action of external force or corrosion of conveying medium.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: A centrifuge's anti -leakage mechanism, include: pipeline and fixed bolt, the pipeline is equipped with two, and the opposite surface of two pipeline is all fixedly connected with flange plate evenly;Sealing assembly, the sealing assembly sets up on the outer surface of two pipelines, and the sealing assembly includes upper cover body and lower cover body, and the both sides outer surface of upper cover body is fixedly connected with U -shaped frame respectively, and the both sides outer surface of lower cover body is fixedly connected with fixed block respectively, and the inner side of a plurality of fixed blocks all is provided with threaded rod, and the outer surface of a plurality of threaded rods is all threadedly rotationally connected with hexagon nut close to the position of bottom, and the inner surface of a plurality of threaded rods is all fixedly connected with the shaft, and the outer surface of a plurality of shafts is respectively rotationally connected with the inner surface wall of a plurality of U -shaped frames.

[0007] Preferably, the top of the upper cover body is provided with a signal transmitter, and the inner top of the upper cover body is provided with an air pressure sensor close to one side corner.

[0008] Preferably, the bottom of the upper cover body is symmetrically provided with a first sealing gasket, the top of the lower cover body is symmetrically provided with a second sealing gasket, and the first sealing gasket and the second sealing gasket are in matched arrangement.

[0009] Preferably, the bottom of the upper cover body is symmetrically provided with a first arc-shaped sealing ring, the first arc-shaped sealing ring is located between the two first sealing gaskets, and the outer surface of the first arc-shaped sealing ring is attached to the outer surface of the pipeline.

[0010] Preferably, the top of the lower cover body is symmetrically provided with a second arc-shaped sealing ring, the second arc-shaped sealing ring is located between the two second sealing gaskets, and the outer surface of the second arc-shaped sealing ring is attached to the outer surface of the pipeline.

[0011] Preferably, the end face of the flange plate is provided with an annular groove, and the inner surface of the annular groove is provided with an annular sealing ring.

[0012] Preferably, the fixed bolt is provided with a plurality of fixed bolts, and the two flange plates are fixedly connected by the plurality of fixed bolts.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1. The utility model discloses a pipeline is connected in place in the use, through the flange plate butt joint installation of two pipelines, make its inside two annular sealing rings mutual resistance deformation, fill the gap between both, play the sealing effect, simultaneously, the upper cover body and lower cover body are fixedly arranged at the butt joint of two pipelines, make the butt joint position of two pipelines be in the sealed space formed by the butt joint of two cover bodies, when the pipeline butt joint leaks, the gas can be blocked by the two cover bodies of sealing, prevent diffusion to the external environment, play the effect of double sealing, effectively avoid that the pipeline butt joint is under the corrosion of external force or conveying medium, lead to the leakage of the conveying gas in the pipeline, improve the anti -leakage effect when centrifuge conveying gas.

[0015] 2. The utility model discloses a pipeline butt joint leaks in the use, the pressure in the sealed space between the upper cover body and lower cover body increases suddenly, when the air pressure sensor of the top setting in the upper cover body detects that the air pressure increases, sends the alarm signal through the signal transmitter to the terminal, prevents personnel from failing to detect pipeline leakage in time, and the practicality is high. ACCURACY OF DRAWINGS

[0016] Figure 1 A three-dimensional view of a centrifuge anti-leakage mechanism is proposed for the utility model;

[0017] Figure 2 A sealing assembly structure diagram of a centrifuge anti-leakage mechanism is proposed for the utility model;

[0018] Figure 3 An upper cover body structure diagram of a centrifuge anti-leakage mechanism is proposed for the utility model;

[0019] Figure 4 A lower cover body structure diagram of a centrifuge anti-leakage mechanism is proposed for the utility model;

[0020] Figure 5 A pipeline structure diagram of a centrifuge anti-leakage mechanism is proposed for the utility model;

[0021] Figure 6 A partial structure diagram of a centrifuge anti-leakage mechanism is proposed for the utility model.

[0022] Legend: 1, pipeline; 2, sealing assembly; 201, upper cover body; 202, lower cover body; 203, U-shaped frame; 204, threaded rod; 205, rotating shaft; 206, fixed block; 207, hexagonal nut; 208, first sealing gasket; 209, first arc-shaped sealing ring; 210, second sealing gasket; 211, second arc-shaped sealing ring; 212, air pressure sensor; 213, signal transmitter; 3, flange plate; 4, annular sealing ring; 5, fixed bolt. DETAILED DESCRIPTION

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1: As Figures 1-6 As shown, this utility model provides a leak-proof mechanism for a centrifuge, including: two pipes 1 and fixing bolts 5, with flanges 3 fixedly connected to the opposite surfaces of the two pipes 1; and a sealing assembly 2, which is disposed on the outer surface of the two pipes 1. The sealing assembly 2 includes an upper cover 201 and a lower cover 202. U-shaped frames 203 are symmetrically fixedly connected to the outer surfaces of the two sides of the upper cover 201, and fixing blocks 206 are symmetrically fixedly connected to the outer surfaces of the two sides of the lower cover 202. Threaded rods 204 are provided on the inner sides of the fixing blocks 206. Hexagonal nuts 207 are threadedly rotatably connected to the outer surfaces of the threaded rods 204 near the bottom. Rotating shafts 205 are fixedly connected to the inner surfaces of the rotating shafts 205, and the outer surfaces of the rotating shafts 205 are rotatably connected to the inner walls of the U-shaped frames 203. The bottom of the upper cover 201 is symmetrically provided with first sealing gaskets 208, and the top of the lower cover 202 is symmetrically provided with second sealing gaskets 210. The first sealing gaskets 208 and second sealing gaskets 210 are matched. The bottom of the upper cover 201 is symmetrically provided with first arc-shaped sealing rings 209, which are located between the two first sealing gaskets 208. The outer surface of the first arc-shaped sealing rings 209 is in contact with the outer surface of the pipe 1. The top of the lower cover 202 is symmetrically provided with second arc-shaped sealing rings 211, which are located between the two second sealing gaskets 210. The outer surface of the second arc-shaped sealing rings 211 is in contact with the outer surface of the pipe 1. The end face of the flange 3 is provided with an annular groove, and the inner surface of the annular groove is provided with an annular sealing ring 4. Multiple fixing bolts 5 are provided, and the two flanges 3 are fixedly connected by multiple fixing bolts 5.

[0026] The effect achieved by the whole embodiment 1 is that when the gas centrifuge pipe is butt joint, one of the pipes 1 is the centrifuge body connecting pipe and the other is the external conveying pipe, after the butt joint of the two pipes 1, the two flanges 3 are attached to each other, and when the tool is used to fix and install the plurality of fixing bolts 5 on the surface of the two flanges 3 for fixation, the two oppositely arranged annular sealing rings 4 will be deformed and filled in the gap at the butt joint to play a sealing role, then the upper cover body 201 and the lower cover body 202 are attached to the surface of the two pipes 1 respectively, the bottom of the upper cover body 201 and the top of the lower cover body 202 are attached to each other, so that the two flanges 3 are between the upper cover body 201 and the lower cover body 202, the plurality of hexagonal nuts 207 are sequentially screwed, so that they are screwed downward and away from the bottom of the fixing block 206, which facilitates personnel to pick up the threaded rod 204 and turn it downward, so that the threaded rod 204 rotates in the U-shaped frame 203 through the corresponding rotating shaft 205 fixedly arranged on the inner surface, after the threaded rod 204 is rotated away from the surface of the U-shaped frame 203 and placed in the fixing block 206, the hexagonal nut 207 is reversely screwed, so that it is screwed upward, by placing the plurality of threaded rods 204 in the corresponding fixing blocks 206 and continuously screwing the corresponding hexagonal nuts 207, the hexagonal nuts 207 and the threaded rods 204 are screwed, and under the blocking action of the bottom of the fixing block 206, the threaded rods 204 are pulled, the two cover bodies are clamped to the surface of the two pipes 1, and then the upper cover body 201 is fixed to the surface of the two pipes 1 with the lower cover body 202, when the two cover bodies are clamped to each other, the plurality of first sealing gaskets 208 and the second sealing gaskets 210 are deformed and filled in the gap between the two cover bodies, the first arc-shaped sealing ring 209 and the second arc-shaped sealing ring 211 are respectively tightly pressed against the surface of the two pipes 1 to deform, and are filled in the gap between the two cover bodies and the two pipes 1, so that the internal space between the upper cover body 201 and the lower cover body 202 is sealed, the sealing of the butt joint of the two pipes 1 is achieved, when leakage occurs at the butt joint of the pipe 1, the gas will be blocked by the sealed two cover bodies to prevent diffusion to the external environment, and the double sealing effect is achieved, which avoids the leakage of the internal conveying gas of the pipe 1 to the external environment under the corrosion of external force or conveying medium.

[0027] Embodiment 2: As shown in Figures 1-6 The top of the upper cover body 201 is provided with a signal transmitter 213, and the inner top of the upper cover body 201 is provided with a gas pressure sensor 212 near one side corner.

[0028] The whole embodiment 2 achieves the effect that when the pipeline 1 leaks at the butt joint, the air pressure in the sealed space between the upper cover body 201 and the lower cover body 202 increases, and when the air pressure sensor 212 arranged at the top of the upper cover body 201 detects the increase of the air pressure, the air pressure sensor 212 is electrically connected with the signal transmitter 213, and the signal transmitter 213 sends an alarm signal to the terminal, so that the personnel can be prevented from failing to timely detect the pipeline 1 leakage, and the practicability is high.

[0029] Working principle: when the gas centrifuge pipeline is butt joint, one of the pipelines 1 is the centrifuge body connecting pipe, and the other is the external conveying pipe. After the butt joint of the two pipelines 1, the two flanges 3 are attached to each other, and a plurality of fixing bolts 5 are fixed and installed on the surface of the two flanges 3 for fixation by using tools. At this time, the two oppositely arranged annular sealing rings 4 are deformed and filled in the gap at the butt joint, playing a sealing role. Then the upper cover body 201 and the lower cover body 202 are attached to the surface of the two pipelines 1 respectively, and the bottom of the upper cover body 201 and the top of the lower cover body 202 are attached to each other, so that the two flanges 3 are between the upper cover body 201 and the lower cover body 202. A plurality of hexagonal nuts 207 are screwed in turn, which screw down and move away from the bottom of the fixing block 206. It is convenient for personnel to pick up the threaded rod 204 and turn it down, so that the threaded rod 204 rotates in the U-shaped frame 203 through the rotating shaft 205 fixedly arranged on the inner surface. After the threaded rod 204 is rotated away from the surface of the U-shaped frame 203 and placed in the fixing block 206, the hexagonal nut 207 is screwed in reverse, which screws up. By placing a plurality of threaded rods 204 in the corresponding fixing blocks 206 and continuously screwing the corresponding hexagonal nuts 207, the hexagonal nuts 207 and the threaded rods 204 are screwed, and under the blocking action of the bottom of the fixing block 206, the threaded rods 204 are pulled, and the two cover bodies are clamped to the surface of the two pipelines 1, so that the upper cover body 201 and the lower cover body 202 are fixed on the surface of the two pipelines 1. When the two cover bodies are clamped to each other, a plurality of first sealing pads 208 and second sealing pads 210 abut each other and deform to fill the gap between the two cover bodies. The first arc-shaped sealing ring 209 and the second arc-shaped sealing ring 211 are respectively tightly pressed against the surface of the two pipelines 1, so that they are deformed and filled in the gap between the two cover bodies and the two pipelines 1. The internal space between the upper cover body 201 and the lower cover body 202 is sealed, playing a sealing role at the butt joint of the two pipelines 1. When the pipeline 1 leaks at the butt joint, the gas will be blocked by the sealed two cover bodies, preventing it from spreading to the external environment, playing a double sealing role. Avoiding that the pipeline 1 leaks to the external environment due to the corrosion of external force or conveying medium. When the pipeline 1 leaks at the butt joint, the air pressure in the sealed space between the upper cover body 201 and the lower cover body 202 increases. When the air pressure sensor 212 detects the increase of air pressure, the air pressure sensor 212 and the signal transmitter 213 are electrically connected, and the signal transmitter 213 sends an alarm signal to the terminal, preventing personnel from failing to detect the pipeline 1 leakage in time. High practicability.

[0030] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A leak-proof mechanism for a centrifuge, characterized in that, include: Pipe (1) and fixing bolt (5), wherein there are two pipes (1), and flanges (3) are fixedly connected to the opposite sides of the two pipes (1); A sealing assembly (2) is disposed on the outer surface of two pipes (1). The sealing assembly (2) includes an upper cover (201) and a lower cover (202). U-shaped frames (203) are symmetrically fixedly connected to the outer surfaces of the two sides of the upper cover (201). Fixing blocks (206) are symmetrically fixedly connected to the outer surfaces of the two sides of the lower cover (202). Threaded rods (204) are provided on the inner sides of multiple fixing blocks (206). Hexagonal nuts (207) are threadedly rotatably connected to the outer surfaces of multiple threaded rods (204) near the bottom. Rotating shafts (205) are fixedly connected to the inner surfaces of multiple threaded rods (204). The outer surfaces of multiple rotating shafts (205) are rotatably connected to the inner walls of multiple U-shaped frames (203).

2. The anti-leakage mechanism of the centrifuge according to claim 1, characterized in that: A signal transmitter (213) is provided on the top of the upper cover (201), and a barometric pressure sensor (212) is provided on the inner top of the upper cover (201) near one corner.

3. The anti-leakage mechanism of the centrifuge according to claim 2, characterized in that: The bottom of the upper cover (201) is symmetrically provided with a first sealing gasket (208), and the top of the lower cover (202) is symmetrically provided with a second sealing gasket (210). The first sealing gasket (208) and the second sealing gasket (210) are provided in a matching manner.

4. The anti-leakage mechanism of the centrifuge according to claim 2, characterized in that: The bottom of the upper cover (201) is symmetrically provided with a first arc-shaped sealing ring (209), which is located between two first sealing pads (208). The outer surface of the first arc-shaped sealing ring (209) is in contact with the outer surface of the pipe (1).

5. The anti-leakage mechanism of the centrifuge according to claim 3, characterized in that: The top of the lower cover (202) is symmetrically provided with a second arc-shaped sealing ring (211), which is located between two second sealing gaskets (210). The outer surface of the second arc-shaped sealing ring (211) is in contact with the outer surface of the pipe (1).

6. The anti-leakage mechanism of the centrifuge according to claim 1, characterized in that: The flange (3) has an annular groove on its end face, and an annular sealing ring (4) is provided on the inner surface of the annular groove.

7. The anti-leakage mechanism of the centrifuge according to claim 1, characterized in that: The fixing bolts (5) are provided in multiple ways, and the two flanges (3) are fixedly connected by the multiple fixing bolts (5).

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