A centrifuge oil, water isolation and cooling device

Abstract

The utility model relates to centrifuge technical field, and disclose a centrifuge oil, water isolation and cooling device, this centrifuge oil, water isolation and cooling device, including the base, the eddy pipe, the upper fixed mounting of base has the machine shell, the inside installation of machine shell has the centrifuge, the bearing position of centrifuge is equipped with bearing cover, the inside of bearing cover is equipped with annular partition cavity, the upper of bearing cover is equipped with air inlet, the lower of bearing cover is equipped with waste gas external interface, air inlet with waste gas external interface all with annular partition cavity are connected, and the outside one end of air inlet is connected with cooling pipe, the eddy pipe with cooling pipe are connected, and the upper of eddy pipe is connected with air inlet pipe, and the device can effectively solve the sealing, heat dissipation and early warning problem in the prior art, improve the operation reliability and safety of centrifuge, be convenient for maintenance and detection.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a centrifuge oil and water isolation and cooling device. Background Technology

[0002] Centrifuges, as key equipment for solid-liquid separation and particle classification using centrifugal force, are widely used in chemical, pharmaceutical, and food industries. Their core working principle is to generate a centrifugal force field through high-speed rotation, thereby separating substances of different densities. During centrifuge operation, the bearing system, as the core transmission component, must withstand the mechanical loads and frictional heat generated by high-speed rotation. However, traditional structural designs have some shortcomings in terms of sealing protection and thermal management.

[0003] The traditional transmission sealing structure of centrifuges adopts a single sealing layer design, which has the following problems under long-term high-speed operation: the sealing components wear out and form a two-way permeation channel (oil leakage / material seepage); the bearing cavity forms a closed hot cavity, which leads to high-temperature deterioration of lubricating oil; and the failure warning is delayed, requiring shutdown and disassembly for inspection. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a centrifuge oil and water isolation and cooling device, which solves the problems of two-way permeation channels (oil leakage / material seepage) formed after the sealing components wear; high-temperature deterioration of lubricating oil caused by the formation of a closed hot cavity in the bearing cavity; and delayed failure warning, requiring shutdown and disassembly for inspection.

[0005] This utility model provides the following technical solution: a centrifuge oil and water isolation and cooling device, including a base and a vortex tube, a housing is fixedly installed on the top of the base, a centrifuge is installed inside the housing, and a bearing cover is installed at the bearing position of the centrifuge;

[0006] The bearing cover has an annular cavity inside, an air inlet is provided on the top of the bearing cover, and an exhaust gas outlet is provided on the bottom of the bearing cover. Both the air inlet and the exhaust gas outlet are connected to the annular cavity. A cooling pipe is connected to one end of the outer side of the air inlet. The vortex tube is connected to the cooling pipe, and an air inlet is connected to the vortex tube.

[0007] Preferred technical solution 1: Both inner side walls of the annular cavity are fixedly installed with sealing rings, and the distance between the two sealing rings is 8-12mm.

[0008] Preferred technical solution 2: The temperature of the cold air entering the vortex tube is 5-10℃.

[0009] Preferred technical solution 3: An exhaust gas pipe is connected to one end of the outer side of the exhaust gas external interface.

[0010] Preferred technical solution four: The exhaust pipe is made of transparent PVC or transparent plexiglass.

[0011] Preferred technical solution five: A valve is provided on the air intake pipe.

[0012] Compared with the prior art, this utility model provides a centrifuge oil and water isolation and cooling device, which has the following beneficial effects: When in use, the utility model forms a physical isolation zone by using the annular cavity inside the bearing cover in conjunction with the double sealing rings, blocking the direct penetration path of oil and materials. The 5-10℃ positive pressure cold airflow generated by the vortex tube forms a dynamic air curtain barrier in the annular cavity. When the centrifuge is running at high speed, the air curtain pressure automatically matches the pressure difference inside and outside the bearing cavity, realizing the reverse blocking of the airflow direction when the seal fails, preventing the bearing cavity grease from entering the centrifuge chamber, and at the same time preventing the chamber liquid from flowing back into the bearing area;

[0013] The low-temperature airflow (5-10℃) output by the vortex tube acts directly on the bearing housing, and the heat exchange efficiency is improved through forced convection heat transfer, which lowers the temperature of the bearing cavity, reduces the temperature of the lubricating oil, and avoids high-temperature deterioration of the oil and sludge deposition.

[0014] The transparent exhaust pipe allows for real-time observation of airflow status: under normal operating conditions, the airflow is clean and transparent; when the seal fails, oil mist or material particles form visible suspended matter or droplets attached with the airflow, shortening the warning response time compared to traditional shutdown detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of A in the middle;

[0018] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of B in the middle.

[0019] In the diagram: 1. Base; 2. Housing; 3. Centrifuge; 4. Bearing cover; 5. Annular diaphragm; 6. Air inlet; 7. Exhaust gas external interface; 8. Cooling pipe; 9. Air inlet pipe; 10. Sealing ring; 11. Exhaust gas pipe; 12. Vortex tube. Detailed Implementation

[0020] Please see Figure 1-4 ,

[0021] Example 1: A centrifuge oil and water isolation and cooling device includes a base 1, a vortex tube 12, a housing 2 fixedly installed on the top of the base 1, a centrifuge 3 installed inside the housing 2, and a bearing cover 4 installed at the bearing position of the centrifuge 3.

[0022] The bearing cover 4 has an annular cavity 5 inside, an air inlet 6 on the top of the bearing cover 4, and an exhaust gas inlet 7 on the bottom of the bearing cover 4. Both the air inlet 6 and the exhaust gas inlet 7 are connected to the annular cavity 5. A cooling pipe 8 is connected to one end of the outer side of the air inlet 6. The vortex pipe 12 is connected to the cooling pipe 8. An air inlet pipe 9 is connected to the vortex pipe 12.

[0023] Example 2: The difference between this example and Example 1 is that sealing rings 10 are fixedly installed on both sides of the inner sidewalls of the annular cavity 5, and the distance between the two sealing rings 10 is 8-12mm, which facilitates sealing.

[0024] Example 3: The difference between this example and Example 1 is that the temperature of the cold air entering the vortex tube 12 is 5-10℃, which facilitates continuous cooling of the bearing housing.

[0025] Example 4: The difference between this example and Example 1 is that the outer end of the exhaust gas external interface 7 is connected to an exhaust gas pipe 11 to facilitate the discharge of exhaust gas.

[0026] Example 5: The difference between this example and Example 1 is that the exhaust pipe 11 is made of transparent PVC or transparent plexiglass. When the seal fails, oil mist / material particles enter the exhaust pipe 11 with the airflow, forming visible suspended matter or liquid droplets, which facilitates observation and subsequent treatment.

[0027] Example 6: The difference between this example and Example 1 is that a valve is provided on the air intake pipe 9.

[0028] In summary, the centrifuge oil and water isolation and cooling device can have a temperature sensor installed inside the exhaust pipe 11, and the valve on the intake pipe 9 can be equipped with an automatic regulating valve. Both the temperature sensor and the automatic regulating valve are connected to an external PLC for automatic control.

[0029] When in use, compressed air is input through the intake pipe 9 of the vortex tube 12, and then flows to the cooling pipe 8 connected to the vortex tube 5, enters the bearing cover 4 of the centrifuge 3, and enters the cooling gas inside the annular cavity 5 of the bearing cover 4 of the centrifuge 3. Here, a positive pressure cold airflow is formed, a dynamic air seal is constructed, and the bearing seat is continuously cooled.

[0030] If the seal fails, the airflow direction will automatically reverse to block the flow, preventing oil and grease from the bearing cavity from entering the centrifuge chamber; it will also prevent liquid from the centrifuge chamber from entering the bearing cavity. An exhaust port is opened at the bottom of the bearing cover to discharge the replaced hot gas or mixed gas. When the seal fails, oil mist / material particles will enter the exhaust pipe 11 with the airflow, forming visible suspended matter or droplets, which will facilitate observation and subsequent treatment.

Claims

1. A centrifuge oil and water isolation and cooling device, comprising a base (1) and a vortex tube (12), characterized in that: A housing (2) is fixedly installed above the base (1), and a centrifuge (3) is installed inside the housing (2). A bearing cover (4) is installed at the bearing position of the centrifuge (3). The bearing cover (4) has an annular cavity (5) inside. An air inlet (6) is provided above the bearing cover (4). An exhaust gas outlet (7) is provided below the bearing cover (4). The air inlet (6) and the exhaust gas outlet (7) are both connected to the annular cavity (5). A cooling pipe (8) is connected to one end of the outer side of the air inlet (6). The vortex pipe (12) is connected to the cooling pipe (8). An air inlet pipe (9) is connected to the vortex pipe (12).

2. The centrifuge oil and water isolation and cooling device according to claim 1, characterized in that: The inner two side walls of the annular cavity (5) are fixedly installed with sealing rings (10), and the distance between the two sealing rings (10) is 8-12mm.

3. The centrifuge oil and water isolation and cooling device according to claim 1, characterized in that: The temperature of the cold air entering the vortex tube (12) is 5-10℃.

4. The centrifuge oil and water isolation and cooling device according to claim 1, characterized in that: The outer end of the exhaust gas external interface (7) is connected to an exhaust gas pipe (11).

5. A centrifuge oil and water isolation and cooling device according to claim 4, characterized in that: The exhaust pipe (11) is made of transparent PVC or transparent plexiglass.

6. The centrifuge oil and water isolation and cooling device according to claim 1, characterized in that: A valve is provided on the air intake pipe (9).

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