Self-sealing closed disc separator inlet and outlet device

Abstract

The application relates to a self-liquid closed disc type separator inlet and outlet device, which comprises a feeding pipe, a light liquid connector, a light liquid connecting pipe and a heavy liquid connector, the light liquid connector is connected with the light liquid connecting pipe, the feeding pipe, the light liquid connecting pipe and the heavy liquid connector are connected with the inner cavity of a rotating drum, the inside of the heavy liquid connector is provided with a heavy liquid upper self-liquid seal element and a heavy liquid self-liquid seal cover, the lower part of the heavy liquid self-liquid seal cover is provided with a first self-liquid seal structure pressing block, the inside of the first self-liquid seal structure pressing block is provided with a heavy liquid lower self-liquid seal element, a second self-liquid seal structure pressing block is arranged below the first self-liquid seal structure pressing block, and the inside of the second self-liquid seal structure pressing block is provided with a light liquid self-liquid seal element. The application has the advantages that the separation of materials with poor separation effect caused by gas mixed into liquid can be effectively improved, especially the separation of materials with much foam, and the manufacturing cost of light and heavy liquid centripetal pumps is saved.

Description

TECHNICAL FIELD

[0001] The application relates to an inlet and outlet structure of a disc separator, in particular to a self-liquid-seal closed disc separator inlet and outlet device. BACKGROUND

[0002] The disc separator is mainly composed of an inlet and outlet device, a rotating drum device, a frame component, a transmission system and a motor, and is driven by the motor during work, the transmission system transmits power to drive the rotating drum to rotate at a high speed, liquid flows into the rotating drum from the inlet and outlet device, the liquid in the rotating drum forms a light-heavy liquid interface and a slag phase under the action of centrifugal force, and is discharged through manual slag discharge or automatic slag discharge, and the separated light-heavy liquid is transported to a designated position of a customer through the light-heavy liquid channel of the inlet and outlet device. The separation equipment for separating solid-liquid or light-heavy phase liquid is widely applied to the fields of medicine, food, chemical industry and shipbuilding due to its strong separation efficiency.

[0003] At present, the inlet and outlet device of the liquid-liquid-solid three-phase disc separator has a structure as shown in the figure, Figure 2 which is mainly composed of a feeding connector, a feeding pipe, a light liquid connector, a heavy liquid connector, a light liquid centrifugal pump, a heavy liquid centrifugal pump, a connector seat, a sealing element and some valves and mirrors. The liquid to be separated enters the rotating drum from the feeding connector and the feeding pipe, the separated light liquid flows out through the light liquid centrifugal pump and the light liquid connector, and the separated heavy liquid flows out through the heavy liquid centrifugal pump and the heavy liquid connector. The structure is difficult to improve the separation effect of the separation material affected by the gas. SUMMARY

[0004] The application aims at the defects of the prior art, and provides a self-liquid-seal closed disc separator inlet and outlet structure, which can improve the separation effect of the disc separator.

[0005] In order to achieve the above object, the application provides a self-liquid-seal closed disc separator inlet and outlet device, which comprises a feeding pipe, a light liquid connector, a light liquid connecting pipe and a heavy liquid connector, the light liquid connector is connected with the light liquid connecting pipe, the feeding pipe, the light liquid connecting pipe and the heavy liquid connector are connected with the inner cavity of the rotating drum, the inside of the heavy liquid connector is provided with a heavy liquid upper self-liquid-seal sealing element and a heavy liquid self-liquid-seal cover, the lower part of the heavy liquid self-liquid-seal cover is provided with a first self-liquid-seal structure pressing block, the inside of the first self-liquid-seal structure pressing block is provided with a heavy liquid lower self-liquid-seal sealing element, a second self-liquid-seal structure pressing block is arranged below the first self-liquid-seal structure pressing block, and the inside of the second self-liquid-seal structure pressing block is provided with a light liquid self-liquid-seal sealing element.

[0006] The application realizes liquid self-sealing by structural design, thereby separating from gas. The self-sealing structure (i.e. light liquid self-sealing sealing piece and second self-sealing structure pressing block) is designed at the light liquid passage of the inlet and outlet device. The separated light liquid flows through the light liquid passage. Due to the flow characteristics of the liquid, the self-sealing structure at this position also realizes self-sealing under the hydraulic pressure of the liquid, thereby preventing the separated light liquid from mixing with the gas. Meanwhile, the self-sealing structure is designed in the heavy liquid passage of the inlet and outlet device. The heavy liquid passage is designed with self-sealing structures (i.e. heavy liquid upper self-sealing sealing piece, heavy liquid self-sealing cover, first self-sealing structure pressing block and heavy liquid lower self-sealing sealing piece) above and below the heavy liquid joint. The upper sealing structure is used to separate the heavy liquid from the gas outside the rotating drum, and the lower sealing structure is used to separate the gas between the heavy liquid and the light liquid. In summary, the inlet and outlet device of the application is used to separate the gas outside the separating machine from the liquid in the rotating drum, thereby preventing the liquid material with gas from generating a large amount of foam or bubble breakage in the high-speed rotating drum, and improving the separation effect of the disc type separating machine.

[0007] The application further adopts the following technical scheme:

[0008] Preferably, a feeding self-sealing pressing block is arranged on the upper part of the disc type separating machine distributor outside the feeding pipe. A feeding self-sealing sealing piece is arranged between the feeding self-sealing pressing block and the disc type separating machine distributor.

[0009] With the above structure, the self-sealing structure (i.e. feeding self-sealing pressing block and feeding self-sealing sealing piece) is designed at the outlet of the feeding pipe inside the rotating drum component and the upper part of the distributor. After the liquid to be separated flows into the rotating drum component from the feeding pipe of the inlet and outlet device, the liquid flows more and more, and a certain liquid pressure is generated above the outlet of the feeding pipe, which can start the self-sealing structure at this position. The feeding self-sealing sealing piece floats and tightly contacts with the upper feeding self-sealing pressing block, thereby preventing the gas from entering the liquid to be separated, and realizing the separation of the liquid and the gas at this position.

[0010] Preferably, the cross sections of the heavy liquid upper self-sealing sealing piece, the heavy liquid lower self-sealing sealing piece, the light liquid self-sealing sealing piece and the feeding self-sealing sealing piece are annular.

[0011] Preferably, a clamp structure is arranged on the feeding pipe, the light liquid joint and the heavy liquid joint respectively. The clamp structure comprises a clamp ball valve, a clamp joint and a clamp. One end of the clamp ball valve is connected with the clamp joint through the clamp, and the other end is connected with the light liquid joint, the heavy liquid joint and the feeding pipe through the clamp respectively.

[0012] Preferably, a clamp sight glass and a clamp elbow are arranged between the clamp ball valve and the feeding pipe. The clamp ball valve and the clamp sight glass are connected through the clamp, the clamp sight glass and the clamp elbow are connected through the clamp, the feeding pipe is connected with the clamp elbow through the clamp nut, and the clamp nut and the clamp elbow are connected through the clamp.

[0013] Preferably, a clamp sealing ring is arranged in the clamp.

[0014] Preferably, the clamp nut is arranged in a groove on the upper part of the light liquid joint, one side of the light liquid joint is provided with a light liquid outlet, and a clamp structure is arranged on the light liquid outlet.

[0015] Preferably, the heavy liquid joint is sleeved on the light liquid joint pipe and located below the light liquid joint, one side of the heavy liquid joint is provided with a heavy liquid outlet, and a clamp structure is arranged on the heavy liquid outlet.

[0016] Preferably, the heavy liquid joint is fixedly connected with the disc separator cover through bolts.

[0017] Preferably, the first self-sealing structure block and the second self-sealing structure block are arranged in the disc separator drum cover.

[0018] The device of the present application is adopted, the liquid to be separated enters the drum part from the feed pipe of the inlet and outlet device, the self-sealing device in the drum is sealed by liquid force after the liquid enters, and it is ensured that no gas is mixed into the material to be separated after feeding; the light liquid after separation flows out from the light liquid channel, and the light liquid self-sealing structure is designed at the light liquid flow channel, and the light liquid after separation acts on it, under the action of the light liquid force, the light liquid self-sealing structure separates the gas in the separator from the light liquid after separation, and prevents the influence of the existence of gas on the separation effect of the light liquid; the heavy liquid after separation flows out from the heavy liquid channel designed in the separator, and the heavy liquid self-sealing structure is also designed at the heavy liquid outlet in the inlet and outlet device, and the difference between the heavy liquid self-sealing structure and the light liquid self-sealing structure is that the heavy liquid self-sealing structure not only isolates the gas outside the drum, but also realizes the isolation of the gas between the light liquid.

[0019] The advantage of the present application is that the liquid entering and flowing out of the separator can be effectively isolated from the gas in the separator, thereby effectively improving the separation of the material with poor separation effect caused by the mixing of gas into the liquid, especially the separation of the material with many foams, and the manufacturing cost of the light and heavy liquid centrifugal pumps is saved. The present application is suitable for separation occasions prone to foaming, such as dairy separator. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below with reference to the drawings.

[0021] Figure 1 The structure of the present application is shown in the figure.

[0022] Figure 2 The structure of the prior art disc separator inlet and outlet device is shown in the figure.

[0023] Figure 3 The cross-sectional view of the heavy liquid self-sealing cover in the present application is shown in the figure.

[0024] Figure 4 Figure 1 is a cross-sectional view of the first self-sealing structure block in the present application.

[0025] Figure 5 Figure 2 is a cross-sectional view of the second self-sealing structure block in the present application.

[0026] Figure 6 Figure 3 is a cross-sectional view of the feed self-sealing block in the present application.

[0027] Figure 1 is a cross-sectional view of the first self-sealing structure block in the present application. DETAILED DESCRIPTION Example 1

[0028] As Figure 1As shown, a self-liquid seal closed disc centrifuge inlet and outlet device, including a feed pipe 8, a light liquid connector 9, a light liquid connector pipe 10 and a heavy liquid connector 11, the lower end of the feed pipe 8 is connected with the inner cavity of the drum, the upper end of the feed pipe 8 is connected with the clamp elbow 6 through the clamp nut 7, the feed pipe 8 is inserted into the clamp nut 7, and the upper end of the clamp nut 7 is connected with one end of the clamp elbow 6 through the clamp 2, the lower end is installed in the groove located at the upper part of the light liquid connector 9, the other end of the clamp elbow 6 is connected with one end of the clamp sight glass 5 through the clamp 2, the other end of the clamp sight glass 5 is connected with one end of the clamp ball valve 4 through the clamp 2, the other end of the clamp ball valve 4 is connected with the clamp connector 1 through the clamp 2. The clamp 2 is composed of an outer clamp, an inner clamp, a fastening bolt and a clamp nut, the inner clamp and the outer clamp are sleeved on the interface of the pipeline, the outer clamp is sleeved outside the inner clamp, and the inner clamp and the outer clamp have screw holes at one end respectively, the fastening bolt is arranged in cooperation with the screw holes, the fastening bolt fixes one end of the inner clamp and the outer clamp, the other end of the inner clamp is provided with a clamp nut, the other end of the outer clamp has a bayonet, the clamp nut passes through the bayonet, and the two pipelines are fixed by tightening the clamp nut. The clamp sealing ring 3 is arranged in the clamp 2. The lower part of the light liquid connector 9 is connected with the light liquid connector pipe 10, a sealing ring is arranged at the connection between the light liquid connector 9 and the light liquid connector pipe 10, and the lower end of the light liquid connector pipe 10 is connected with the inner cavity of the drum. One side of the light liquid connector 9 is provided with an outlet, the clamp ball valve 4 and the clamp connector 2 are installed at the outlet, the clamp ball valve 4 and the clamp connector 1 are connected through the clamp 2 between the outlet of the light liquid connector 9 and the clamp ball valve, and the clamp sealing ring 3 is arranged in the clamp 2. The light liquid connector pipe 10 is sleeved with the heavy liquid connector 11, the heavy liquid connector 11 is located below the light liquid connector 9, the heavy liquid connector 11 is connected with the inner cavity of the drum, and the heavy liquid connector 11 is provided with an outlet at one side, the clamp ball valve 4 and the clamp connector 1 are installed at the outlet, the clamp ball valve 4 and the clamp connector 1 are connected through the clamp 2 between the outlet of the heavy liquid connector 11 and the clamp ball valve 4, and the clamp sealing ring 3 is arranged in the clamp 2.

[0029] The lower part of the heavy liquid connector 11 is fixedly connected to the cover 14 of the disc separator by bolts. The inner lower part of the heavy liquid connector 11 is equipped with a heavy liquid self-liquid sealing element 12 and a heavy liquid self-liquid sealing cover 13. The heavy liquid self-liquid sealing element 12 is located between the heavy liquid connector 11 and the heavy liquid self-liquid sealing cover 13. The heavy liquid self-liquid sealing element 12 is annular. The lower part of the heavy liquid self-liquidating cover 13 is provided with a first self-liquidating structure pressure block 16. Inside the first self-liquidating structure pressure block 16, at the location of the heavy liquid self-liquidating cover 13, is a heavy liquid lower self-liquidating seal 15. Below the first self-liquidating structure pressure block 16, is a second self-liquidating structure pressure block 18. Inside the second self-liquidating structure pressure block 18, at the location of the first self-liquidating structure pressure block 16, is a light liquid self-liquidating seal 17. Both the heavy liquid lower self-liquidating seal 15 and the light liquid self-liquidating seal 17 are annular and are fitted over the light liquid connecting pipe 10. The first self-liquidating structure pressure block 16 and the second self-liquidating structure pressure block 18 are installed inside the disc separator drum cover 22.

[0030] In addition, a feed self-liquid sealing block 19 is provided on the upper part of the disc separator distributor 21. A feed self-liquid sealing element 20 is provided between the feed self-liquid sealing block 19 and the disc separator distributor 21. The feed self-liquid sealing element 20 is annular and is sleeved on the outside of the feed pipe 8.

[0031] like Figures 3 to 6 As shown, the heavy liquid self-liquid sealing cover 13, the first self-liquid sealing structure block 16, the second self-liquid sealing structure block 18, and the feed self-liquid sealing block 19 are all annular. Side holes are made on the side walls of the heavy liquid self-liquid sealing cover 13 and the first self-liquid sealing structure block 16, and these side holes are connected to the oblique holes on the disc separator drum cover 22.

[0032] In actual use, the clamp joint 1, clamp ball valve 4, clamp sight glass 5 and clamp elbow 6 installed at the feed pipe 8 are connected by the clamp 2, and the clamp sealing ring 3 is installed in the clamp 2 to ensure the sealing of the feed device passing through the liquid; the upper part of the clamp nut 7 is connected with the clamp elbow 6 by the clamp 2, and the clamp nut 7 with the feed pipe 8 is installed into the light liquid joint 9, and then the clamp nut 7 is tightened to install the feed pipe 8. The light liquid joint 9 is located at the upper part of the light liquid connecting pipe 10, and a sealing element is installed between the two. The light liquid outlet of the light liquid joint 9 is provided with the clamp ball valve 4 and the clamp joint 1, which are also connected by the clamp 2 and the clamp sealing ring 3, to facilitate the connection of the customer to other pipelines. The heavy liquid joint 11 is installed below the light liquid connecting pipe 10, and the heavy liquid joint 11 is provided with the clamp ball valve 4 and the clamp joint 1 at the heavy liquid outlet, which are also connected by the clamp 2 and the clamp sealing ring 3, to facilitate the connection of the customer to other pipelines. The heavy liquid joint 11 is connected and fixed with the disc separator cover 14 by a standard threaded part. The heavy liquid upper self-sealing sealing element 12 and the heavy liquid self-sealing cover 13 are installed inside and below the heavy liquid joint 11. The lower part of the heavy liquid self-sealing cover 13 is provided with the heavy liquid lower self-sealing sealing element 15, which is also located in the first self-sealing structure pressing block 16. When the heavy liquid flows through this place, the heavy liquid lower self-sealing sealing element 15 is more closely attached to the first self-sealing structure pressing block 16 under the hydraulic pressure to prevent the gas below from entering the heavy liquid. Under the buoyancy of the liquid, the heavy liquid upper self-sealing sealing element 12 floats to the self-sealing surface of the heavy liquid joint 11 to prevent the gas from entering outside the drum. The light liquid self-sealing sealing element 17 and the second self-sealing structure pressing block 18 are installed below the first self-sealing structure pressing block 16, and the first self-sealing structure pressing block 16 and the second self-sealing structure pressing block 18 are both installed in the disc separator drum cover 22. The separated light liquid flows out from the light liquid flow passage composed of the light liquid connecting pipe 10 and the feed pipe 8. At the inlet of the passage, the light liquid self-sealing sealing element 17 floats under the action of the liquid and is closely attached to the self-sealing surface of the first self-sealing structure pressing block 16 to isolate the gas from entering. The feed self-sealing pressing block 19 is installed on the upper part of the disc separator distributor 21, and the feed self-sealing sealing element 20 is installed between the two. After the liquid flows into the feed pipe, the feed self-sealing sealing element 20 floats after being acted on by the increasing fluid in the separator, and is closely attached to the feed self-sealing pressing block 19 to prevent the gas from mixing into the liquid.

[0033] When working, the feed self-sealing structure is floated up by the liquid pressure after the liquid flows in, and is in close contact with the feed self-sealing block 19, so as to prevent gas from entering the liquid to be separated. The liquid entering the separator drum ensures that there is no gas mixed in, and then the light and heavy liquids and slag are separated by high-speed rotation of the drum. The light liquid flows out through the light liquid passage between the feed pipe 8 and the light liquid connector 10, and the heavy liquid flows out through the heavy liquid passage in the top cover of the disc separator. After the separation, the light liquid enters the light liquid passage and directly flows out from the passage. Since there is no light liquid centripetal pump structure at the light liquid passage, a light liquid self-sealing structure is designed on the light liquid outflow passage. The liquid flow floats up the light liquid self-sealing seal 17 and makes it in contact with the second self-sealing structure block 18 above it. As the liquid continues to flow, the light liquid self-sealing seal 17 is in close contact with the second self-sealing structure block 18, so as to separate the gas above the light liquid self-sealing seal 17 from the light liquid. After the separation, the heavy liquid flows into the heavy liquid passage, and there is no centripetal pump in the heavy liquid passage, but it directly flows into the heavy liquid connector 11. After the heavy liquid flows from the drum cover part of the drum part to the upper top cover, the heavy liquid passage in the top cover is designed with a heavy liquid self-sealing structure and a sealing structure above and below. The liquid flows through this place, and the pressure of the liquid pushes the lower heavy liquid self-sealing seal 15 to be in close contact with the first self-sealing structure block 16 below it. The heavy liquid self-sealing seal 15 separates the gas between the light and heavy liquids from the heavy liquid. Since the liquid force pushes the heavy liquid self-sealing seal 12 to be in close contact with the heavy liquid connector 11 above it, the gas outside the drum is separated from the heavy liquid.

[0034] The disc separator mainly comprises an inlet and outlet device, a drum device, a frame part, a transmission system, and a motor. The inlet and outlet device is mainly a passage for the inlet and outlet of the separated material. The drum device is a place for realizing the separation of light liquid, heavy liquid, and slag. The frame part has the inlet and outlet device on the upper part, the drum part and the transmission system inside, and is used for bearing all the parts for realizing the functions. The motor provides power, the transmission system transmits the power to the drum, and the high-speed rotation of the drum realizes the separation of the material. The inlet and outlet device provided by the present application mainly has the effect that after the liquid to be separated enters the drum device, the liquid in the drum is completely separated from the gas outside through the self-sealing structure of the inlet passage, so as to ensure that the separated liquid does not mix with the gas. The gas mixed in the liquid can be prevented from forming foam with the high-speed rotation of the drum. The light liquid after the separation flows out through the light liquid passage, and the light liquid self-sealing structure is designed in the light liquid passage to prevent the light liquid after the separation from mixing with the gas. The heavy liquid after the separation is also designed with a self-sealing structure at the upper and lower parts of the heavy liquid flow passage, so as to ensure that the heavy liquid after the separation does not mix with the gas in the separator. The liquid before and after the separation passes through the inlet and outlet structure, so as to effectively ensure that the liquid is separated from the gas from the inlet to the outlet, thereby improving the separation of the material affected by the mixing of the gas in the liquid.

[0035] The self-liquid seal structure of the present application is composed of a mechanical structure and a seal, the mechanical structure is not the structure of the light and heavy liquid centripetal pump with conventional inlet and outlet devices, but adopts the self-flowing mode, the seal is in contact with the mechanical parts above it under the action of hydraulic pressure, the material of the mechanical structure can be stainless steel material, etc., and the material of the seal can be the material with smaller density than the separated material. In summary, the inlet and outlet device of the self-liquid seal closed disc separator of the present application completely separates the material before separation and the product after separation from the gas from the feeding to the light liquid and then to the heavy liquid, thereby avoiding the generation of a large amount of foam under the high-speed rotating state due to the existence of the gas in the liquid, and ensuring the separation effect of the separator, especially the separation effect of the material which is easy to produce foam.

[0036] In addition to the above-mentioned embodiments, the present application can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present application.

Claims

1. A self-liquid enclosed disc separator feeding and discharging device, characterized in that: The system includes a feed pipe, a light liquid connector, a light liquid connecting pipe, and a heavy liquid connector. The light liquid connector is connected to the light liquid connecting pipe. The feed pipe, light liquid connecting pipe, and heavy liquid connector are all connected to the inner cavity of the drum. The heavy liquid connector has a heavy liquid upper self-liquidating seal and a heavy liquid self-liquidating seal cover inside. The lower part of the heavy liquid self-liquidating seal cover has a first self-liquidating structure pressure block. The first self-liquidating structure pressure block has a heavy liquid lower self-liquidating seal inside. Below the first self-liquidating structure pressure block is a second self-liquidating structure pressure block. The internal structure of the pressure block is equipped with a light liquid self-liquidating seal; a feed self-liquidating pressure block is located on the upper part of the disc separator distributor outside the feed pipe, and a feed self-liquidating seal is provided between the feed self-liquidating pressure block and the disc separator distributor; a clamp structure is installed on the feed pipe, light liquid connector, and heavy liquid connector respectively, and the clamp structure includes a clamp ball valve, a clamp connector, and a clamp. One end of the clamp ball valve is connected to the clamp connector through the clamp, and the other end is connected to the light liquid connector, heavy liquid connector, and feed pipe respectively through the clamp; The self-liquid sealing structure at the top of the distributor creates hydraulic pressure after the liquid flows in, lifting the self-liquid sealing element and bringing it into close contact with the self-liquid sealing block, preventing gas from entering the liquid to be separated. After ensuring no gas is mixed in, the liquid entering the separator drum is separated into light and heavy liquids and slag by the high-speed rotation of the drum. The light liquid flows out through the light liquid channel between the feed pipe and the light liquid connector, while the heavy liquid flows out through the heavy liquid channel located inside the top cover of the disc separator. The separated light liquid enters the light liquid channel and flows out directly from it. Since there is no centrifugal pump structure in the light liquid channel, but a self-liquid sealing structure is designed on the light liquid outflow channel, the liquid flow lifts the self-liquid sealing element, bringing it into contact with the second self-liquid sealing block above it. As the liquid continues to flow, the self-liquid sealing element and the second self-liquid sealing block fit tightly together, thus isolating the gas above the self-liquid sealing element from the light liquid. After separation, the heavy liquid flows into the heavy liquid channel. There is no centrifugal pump in the heavy liquid channel; instead, it flows directly into the heavy liquid connector. After the heavy liquid flows from the drum cover part of the drum component to the upper top cover, the heavy liquid channel inside the top cover is designed with heavy liquid self-liquid sealing structure and sealing structure at both the top and bottom. When the liquid flows through this point, the liquid pressure pushes the lower heavy liquid self-liquid sealing element to make close contact with the pressure block of the first self-liquid sealing structure of its lower part. This lower heavy liquid self-liquid sealing element separates the gas between the light and heavy liquids from the heavy liquid. Due to the liquid force, the upper heavy liquid self-liquid sealing element is pushed to make close contact with the heavy liquid connector of its upper part, thereby separating the gas outside the drum from the heavy liquid.

2. The self-liquid enclosed disc separator feeding and discharging device according to claim 1, characterized in that: The cross-sections of the heavy liquid self-liquidating seal, the heavy liquid bottom self-liquidating seal, the light liquid self-liquidating seal, and the feed self-liquidating seal are all annular.

3. The feeding and discharging device for a self-liquid-sealed disc separator according to claim 1, characterized in that: A clamp sight glass and a clamp elbow are provided between the clamp ball valve and the feed pipe. The clamp ball valve and the clamp sight glass, and the clamp sight glass and the clamp elbow are connected by clamps. The feed pipe is connected to the clamp elbow by a clamp nut, and the clamp nut and the clamp elbow are connected by clamps.

4. The self-liquid enclosed disc separator feeding and discharging device according to claim 3, characterized in that: A clamp sealing ring is provided inside the clamp.

5. The feeding and discharging device for a self-liquid-sealed disc separator according to claim 3, characterized in that: The clamp nut is installed in a groove located on the upper part of the light liquid connector. The light liquid connector has a light liquid outlet on one side, and a clamp structure is installed at the light liquid outlet.

6. The feeding and discharging device for a self-liquid-sealed disc separator according to claim 3, characterized in that: The heavy liquid connector is fitted over the light liquid connector and located below the light liquid connector. One side of the heavy liquid connector has a heavy liquid outlet, and a clamping structure is installed at the heavy liquid outlet.

7. The feeding and discharging device for a self-liquid-sealed disc separator according to claim 3, characterized in that: The heavy liquid connector is fixedly connected to the disc separator cover by bolts.

8. The feeding and discharging device for a self-liquid-sealed disc separator according to claim 7, characterized in that: The first self-liquid sealing structure pressure block and the second self-liquid sealing structure pressure block are installed inside the drum cover of the disc separator.

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