Centrifugal machine lubricating oil tank with vacuumizing and oil temperature self-control functions

Abstract

The centrifugal machine lubricating oil tank with the vacuumizing and oil temperature self-control functions comprises an oil tank body and a lubricating oil supply assembly, the oil inlet end of the lubricating oil supply assembly is communicated with an inner cavity of the oil tank body, and the oil outlet end of the lubricating oil supply assembly is connected with the oil inlet end of a bearing seat set in a centrifugal machine through a bearing seat oil inlet pipe set. The oil return end of a bearing seat group in the centrifugal machine is communicated with the inner cavity of the oil tank body through a bearing seat oil return pipe group; the oil tank body is of a closed structure. The centrifugal machine lubricating oil tank further comprises a controller, an exhaust fan and an exhaust pipe. The exhaust fan is fixed to the oil tank body, one end of the exhaust pipe is connected with the suction end of the exhaust fan, and the other end of the exhaust pipe is connected with one side of the upper end of the oil tank body and communicated with an inner cavity of the oil tank body. Lubricating oil flowing through the bearing seat group in the centrifugal machine can return quickly, negative pressure difference is established in the bearing seat group in the centrifugal machine, and therefore the purpose that the lubricating oil in the bearing seat group in the centrifugal machine does not leak outwards is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuge lubricating oil tanks, and in particular to a centrifuge lubricating oil tank with vacuuming and automatic oil temperature control functions. Background Art

[0002] The centrifuge uses the high-speed rotation of the centrifuge to generate huge centrifugal force, so that materials with different densities can be quickly settled and separated according to their density. However, with the continuous progress of the times, the density difference of the separated materials is getting smaller and smaller, the speed is getting higher and higher, the centrifuge is getting bigger and bigger, and the bearings are also getting bigger and bigger. Therefore, the requirements for centrifuges are getting higher and higher. Then traditional grease lubrication can no longer meet the use requirements. Only thin oil lubrication can achieve the purpose of rapid cooling and good lubrication.

[0003] Due to the high rotation speed and the particularity of the centrifuge's structure, the bearing seat cannot be sealed with oil seals or mechanical seals, but only labyrinth seals. The characteristic of labyrinth seals is that they are not tightly sealed, which leads to leakage of lubricating oil (the rotational linear speed of the bearings in the centrifuge exceeds 57m / s, and ordinary oil seals cannot meet the use requirements. When the lubricating oil enters the bearing seat, it has a certain flow rate and pressure, so it is easy to cause leakage). The leakage of lubricating oil not only pollutes the environment but also increases the use cost of the centrifuge. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a centrifuge lubricating oil box with vacuum extraction and automatic oil temperature control functions, which can make the lubricating oil flowing through the bearing seat group in the centrifuge return quickly and establish a negative pressure difference in the bearing seat group in the centrifuge, thereby achieving the purpose of preventing the lubricating oil in the bearing seat group in the centrifuge from leaking out.

[0005] The invention provides a centrifuge lubricating oil box with vacuum extraction and automatic oil temperature control functions, comprising an oil box body and a lubricating oil supply assembly, the oil inlet end of the lubricating oil supply assembly is connected with the inner cavity of the oil box body and is used to extract the lubricating oil in the oil box body, the oil outlet end of the lubricating oil supply assembly is connected with the oil inlet end of a bearing seat group in the centrifuge through a bearing seat oil inlet pipe assembly, and the oil return end of the bearing seat group in the centrifuge is connected with the inner cavity of the oil box body through the bearing seat oil return pipe assembly; the oil box body is a closed structure, and the centrifuge lubricating oil box also includes a controller, an exhaust fan and an exhaust pipe; the exhaust fan is fixed on the oil box body, one end of the exhaust pipe is connected with the suction end of the exhaust fan, the other end of the exhaust pipe is connected to one side of the upper end of the oil box body and is connected with the inner cavity of the oil box body, and the exhaust fan is electrically connected to the controller.

[0006] After adopting the above structure, the present invention can continuously pump out the air in the oil tank when the controller starts the exhaust fan, that is, it can establish a certain vacuum in the oil tank, so that the lubricating oil flowing through the bearing seat group in the centrifuge can be quickly returned through the bearing seat oil return pipe group; and it can quickly extract the air in the bearing seat group in the centrifuge and establish a negative pressure difference in the bearing seat group in the centrifuge, so as to achieve the purpose of preventing the lubricating oil in the bearing seat group in the centrifuge from leaking out, thereby playing a role of dynamic sealing.

[0007] In a possible embodiment, the lubricating oil supply assembly includes an oil inlet screw pump, a lubricating oil filter, an air cooler, a relief valve and a distribution valve fixed on the oil tank body; the oil inlet end of the oil inlet screw pump is connected to the inner cavity of the oil tank body and is used to extract the lubricating oil in the oil tank body, the oil inlet end of the lubricating oil filter is connected to the oil outlet end of the oil inlet screw pump, the oil inlet end of the air cooler is connected to the oil outlet end of the lubricating oil filter, the oil inlet end of the relief valve is connected to the oil outlet end of the air cooler, the oil inlet end of the distribution valve is connected to the oil outlet end of the relief valve, and the oil outlet end of the distribution valve is connected to the oil inlet end of the bearing seat group in the centrifuge through the bearing seat oil inlet pipe group; the air cooler and the temperature sensor on the air cooler are electrically connected to the controller; after adopting the above-mentioned lubricating oil supply assembly, under the action of the air cooler The temperature sensor on the air cooler will detect the temperature of the lubricating oil flowing through the air cooler. The fan in the air cooler will not be started before the temperature of the lubricating oil exceeds the set temperature. After a period of operation, when the temperature of the lubricating oil flowing through the air cooler exceeds the set temperature, the controller will start the fan in the air cooler to cool the lubricating oil flowing through the air cooler, and the controller can adjust the speed of the fan according to the temperature value obtained by the temperature sensor on the air cooler, so as to adjust the cooling efficiency of the air cooler for the lubricating oil; that is, under the action of the air cooler, the lubricating oil can be cooled to control the temperature rise of the lubricating oil; in addition, the staff can adjust the overflow valve to adjust the pressure and flow of the lubricating oil entering the distribution valve.

[0008] In a possible implementation, a flow meter is connected to each oil outlet end of the distribution valve, and the oil outlet end of each flow meter is respectively connected to one of the bearing seat oil inlet pipes in the bearing seat oil inlet pipe group; through the setting of the flow meter, the staff can intuitively observe the flow value on each flow meter, so as to judge and control the flow of lubricating oil entering each bearing seat oil inlet pipe.

[0009] In a possible implementation, a first pressure gauge is connected to the pressure detection end of the relief valve; through the provision of the first pressure gauge, the staff can intuitively determine the lubricating oil pressure value in the relief valve through the first pressure gauge.

[0010] In a possible implementation, a second pressure gauge is connected to the pressure detection end of the distribution valve; through the provision of the second pressure gauge, the staff can intuitively determine the lubricating oil pressure value in the distribution valve through the second pressure gauge.

[0011] In a possible embodiment, the centrifuge lubricating oil tank also includes a coil cooler; the coil cooler is located in the inner cavity of the oil tank body and is fixed to the inner wall of the oil tank body, the cooling water inlet end of the coil cooler extends out of the oil tank body and is connected to a solenoid valve, the cooling water inlet end of the coil cooler is connected to the water outlet end of the cooling water supply device through the solenoid valve, and the cooling water outlet end of the coil cooler extends out of the oil tank body and is connected to the return water end of the cooling water supply device; the solenoid valve is electrically connected to the controller; through the setting of the coil cooler, when the air cooler does not have time to cool the lubricating oil, the controller will open the solenoid valve, at this time, the cooling water from the cooling water supply device can flow through the coil cooler, that is, the coil cooler can cool the lubricating oil in the oil tank body, and the cooling water after cooling the lubricating oil can flow back to the cooling water supply device, and so on. Circulation, so as to achieve continuous and auxiliary cooling of the lubricating oil in the lubricating oil tank.

[0012] In a possible embodiment, the centrifuge lubricating oil tank also includes a temperature-controlled electric heater, which is fixed on one side of the bottom of the oil tank body, and the heating end of the temperature-controlled electric heater extends into the inner cavity of the oil tank body, and the temperature-controlled electric heater is electrically connected to the controller; through the setting of the temperature-controlled electric heater, when the centrifuge lubricating oil tank is enabled, the controller can detect the temperature of the lubricating oil in the oil tank body through the temperature-controlled electric heater, and if the temperature of the lubricating oil is lower than the set starting temperature, the controller will start the temperature-controlled electric heater to heat the lubricating oil, and when the temperature of the lubricating oil reaches the set temperature, the temperature-controlled electric heater stops working, and the controller will sound an alarm, and prompt that the starting conditions have been met, at which time the lubricating oil supply component can be started.

[0013] In a possible implementation, an oil level sight glass is also fixed on the side wall of the upper part of the oil tank body; through the setting of the oil level sight glass, the staff can visually observe the amount of lubricating oil in the oil tank body, so that when the lubricating oil is insufficient, the staff can replenish the lubricating oil into the oil tank body in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention; Figure 2 It is a second three-dimensional structural schematic diagram of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the coil cooler. DETAILED DESCRIPTION

[0015] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0017] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figure 1-3 As shown, the embodiment of the present application discloses a centrifuge lubricating oil tank with vacuum extraction and automatic oil temperature control functions, including an oil tank body 1 and a lubricating oil supply assembly, the oil inlet end of the lubricating oil supply assembly is connected to the inner cavity of the oil tank body 1 and is used to extract the lubricating oil in the oil tank body 1, the oil outlet end of the lubricating oil supply assembly is connected to the oil inlet end of the bearing seat group in the centrifuge through the bearing seat oil inlet pipe group 2, and the oil return end of the bearing seat group in the centrifuge is connected to the inner cavity of the oil tank body 1 through the bearing seat oil return pipe group 3; the oil tank body 1 is a closed structure, and the centrifuge lubricating oil tank also includes a controller, an exhaust fan 4 and an exhaust pipe 5; the exhaust fan 4 is fixed on the oil tank body 1, one end of the exhaust pipe 5 is connected to the suction end of the exhaust fan 4, the other end of the exhaust pipe 5 is connected to one side of the upper end of the oil tank body 1 and is connected to the inner cavity of the oil tank body 1, and the exhaust fan 4 is electrically connected to the controller.

[0020] The lubricating oil supply assembly includes an oil inlet screw pump 61, a lubricating oil filter 62, an air cooler 63, an overflow valve 64 and a distribution valve 65 fixed on the oil tank body 1; the oil inlet end of the oil inlet screw pump 61 is connected to the inner cavity of the oil tank body 1 and is used to extract the lubricating oil in the oil tank body 1, the oil inlet end of the lubricating oil filter 62 is connected to the oil outlet end of the oil inlet screw pump 61, the oil inlet end of the air cooler 63 is connected to the oil outlet end of the lubricating oil filter 62, the oil inlet end of the overflow valve 64 is connected to the oil outlet end of the air cooler 63, the oil inlet end of the distribution valve 65 is connected to the oil outlet end of the overflow valve 64, and the oil outlet end of the distribution valve 65 is connected to the oil inlet end of the bearing seat group in the centrifuge through the bearing seat oil inlet pipe group 2; the air cooler 63 and the temperature sensor on the air cooler 63 are both electrically connected to the controller; by adopting the above-mentioned lubricating oil supply After the assembly is installed, under the action of the air cooler, the temperature sensor on the air cooler will detect the temperature of the lubricating oil flowing through the air cooler, and the fan in the air cooler will not be started before the temperature of the lubricating oil exceeds the set temperature. After a period of operation, when the temperature of the lubricating oil flowing through the air cooler exceeds the set temperature, the controller will start the fan in the air cooler to cool the lubricating oil flowing through the air cooler, and the controller can adjust the speed of the fan according to the temperature value obtained by the temperature sensor on the air cooler, so as to adjust the cooling efficiency of the air cooler for the lubricating oil; that is, under the action of the air cooler, the lubricating oil can be cooled to control the temperature rise of the lubricating oil; in addition, the staff can adjust the overflow valve to adjust the pressure and flow of the lubricating oil entering the distribution valve.

[0021] A flow meter 66 is connected to each oil outlet end of the distribution valve 65, and the oil outlet end of each flow meter 66 is respectively connected to one of the bearing seat oil inlet pipes in the bearing seat oil inlet pipe group 2; through the setting of the flow meter, the staff can intuitively observe the flow value on each flow meter, so as to judge and control the flow of lubricating oil entering each bearing seat oil inlet pipe.

[0022] A first pressure gauge 641 is connected to the pressure detection end of the relief valve 64; through the provision of the first pressure gauge, the staff can intuitively determine the lubricating oil pressure value in the relief valve through the first pressure gauge.

[0023] A second pressure gauge 651 is connected to the pressure detection end of the distribution valve 65; through the provision of the second pressure gauge, the staff can intuitively determine the lubricating oil pressure value in the distribution valve through the second pressure gauge.

[0024] The centrifuge lubricating oil tank also includes a coil cooler 7; the coil cooler 7 is located in the inner cavity of the oil tank body 1 and is fixed to the inner wall of the oil tank body 1, the cooling water inlet end of the coil cooler 7 extends out of the oil tank body 1 and is connected to a solenoid valve 71, the cooling water inlet end of the coil cooler 7 is connected to the water outlet end of the cooling water supply device through the solenoid valve 71, and the cooling water outlet end of the coil cooler 7 extends out of the oil tank body 1 and is connected to the water return end of the cooling water supply device; the solenoid valve 71 is electrically connected to the controller; through the setting of the coil cooler, when the air cooler has no time to cool the lubricating oil, the controller will open the solenoid valve, at this time, the cooling water from the cooling water supply device can flow through the coil cooler, that is, the coil cooler can cool the lubricating oil in the oil tank, and the cooling water after cooling the lubricating oil can flow back to the cooling water supply device, and so on. Circulation, so as to achieve continuous and auxiliary cooling of the lubricating oil in the lubricating oil tank.

[0025] The centrifuge lubricating oil tank also includes a temperature-controlled electric heater 8, which is fixed to one side of the bottom of the oil tank body 1, and the heating end of the temperature-controlled electric heater 8 extends into the inner cavity of the oil tank body 1, and the temperature-controlled electric heater 8 is electrically connected to the controller; through the setting of the temperature-controlled electric heater, when the centrifuge lubricating oil tank is enabled, the controller can detect the temperature of the lubricating oil in the oil tank body through the temperature-controlled electric heater, if the temperature of the lubricating oil is lower than the set start-up temperature, the controller will start the temperature-controlled electric heater to heat the lubricating oil, when the temperature of the lubricating oil reaches the set temperature, the temperature-controlled electric heater stops working, and the controller will sound an alarm, and prompt that the start-up conditions have been met, then the lubricating oil supply component can be started.

[0026] An oil level sight glass 11 is also fixed to the side wall of the upper part of the oil tank body 1; through the setting of the oil level sight glass, the staff can visually observe the amount of lubricating oil in the oil tank body, so that when the lubricating oil is insufficient, the staff can replenish the lubricating oil in the oil tank body in time.

[0027] When the present invention is activated, firstly, the controller can detect the temperature of the lubricating oil in the oil tank through the temperature-controlled electric heater. If the temperature of the lubricating oil is lower than the set starting temperature, the controller will start the temperature-controlled electric heater to heat the lubricating oil. When the temperature of the lubricating oil reaches the set temperature, the temperature-controlled electric heater will stop working, and the controller will sound an alarm and prompt that the starting conditions have been met. At this time, the lubricating oil supply component can be started. When the lubricating oil supply component is started, the temperature sensor on the air cooler will detect the temperature of the lubricating oil flowing through the air cooler in real time. Before the temperature of the lubricating oil does not exceed the set temperature, the fan in the air cooler will not be started. After a period of operation, when the lubricating oil flowing through the air cooler When the temperature of the lubricating oil exceeds the set temperature, the controller will start the fan in the air cooler to cool the lubricating oil flowing through the air cooler, and the controller can adjust the speed of the fan according to the temperature value obtained by the temperature sensor on the air cooler, so as to adjust the cooling efficiency of the air cooler on the lubricating oil; in addition, when the air cooler does not have time to cool the lubricating oil, the controller will open the solenoid valve. At this time, the cooling water from the cooling water supply device can flow through the coil cooler, that is, the coil cooler can cool the lubricating oil in the oil tank body, and the cooling water after cooling the lubricating oil can flow back to the cooling water supply device, and the cycle is repeated to achieve continuous and auxiliary cooling of the lubricating oil in the lubricating oil tank.

[0028] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A centrifuge lubricating oil tank with vacuum extraction and automatic oil temperature control functions, comprising an oil tank body (1) and a lubricating oil supply assembly, wherein the oil inlet end of the lubricating oil supply assembly is connected to the inner cavity of the oil tank body (1) and is used to extract the lubricating oil in the oil tank body (1), the oil outlet end of the lubricating oil supply assembly is connected to the oil inlet end of the bearing seat assembly in the centrifuge through a bearing seat oil inlet pipe assembly (2), and the oil return end of the bearing seat assembly in the centrifuge is connected to the inner cavity of the oil tank body (1) through a bearing seat oil return pipe assembly (3); characterized in that: The oil tank body (1) is a closed structure, and the centrifuge lubricating oil tank further comprises a controller, an exhaust fan (4) and an exhaust pipe (5); the exhaust fan (4) is fixed on the oil tank body (1), one end of the exhaust pipe (5) is connected to the suction end of the exhaust fan (4), the other end of the exhaust pipe (5) is connected to one side of the upper end of the oil tank body (1) and communicates with the inner cavity of the oil tank body (1), and the exhaust fan (4) is electrically connected to the controller.

2. The centrifuge lubricating oil tank with vacuum pumping and automatic oil temperature control functions according to claim 1, characterized in that: The lubricating oil supply assembly comprises an oil inlet screw pump (61), a lubricating oil filter (62), an air cooler (63), an overflow valve (64) and a distribution valve (65) fixed to the oil tank body (1); the oil inlet end of the oil inlet screw pump (61) is communicated with the inner cavity of the oil tank body (1) and is used to extract the lubricating oil in the oil tank body (1); the oil inlet end of the lubricating oil filter (62) is connected to the oil outlet end of the oil inlet screw pump (61); the oil inlet end of the air cooler (63) is connected to the oil outlet end of the oil inlet screw pump (61); The oil outlet end of the lubricating oil filter (62) is connected, the oil inlet end of the overflow valve (64) is connected to the oil outlet end of the air cooler (63), the oil inlet end of the distribution valve (65) is connected to the oil outlet end of the overflow valve (64), and the oil outlet end of the distribution valve (65) is connected to the oil inlet end of the bearing seat group in the centrifuge through the bearing seat oil inlet pipe group (2); the air cooler (63) and the temperature sensor on the air cooler (63) are both electrically connected to the controller.

3. The centrifuge lubricating oil tank with vacuuming and automatic oil temperature control functions according to claim 2 is characterized in that: Each oil outlet end of the distribution valve (65) is connected to a flow meter (66), and each oil outlet end of the flow meter (66) is respectively connected to one of the bearing seat oil inlet pipes in the bearing seat oil inlet pipe group (2).

4. The centrifuge lubricating oil box with vacuum pumping and automatic oil temperature control functions according to claim 2 is characterized in that: A first pressure gauge (641) is connected to the pressure detection end of the overflow valve (64).

5. The centrifuge lubricating oil box with vacuuming and automatic oil temperature control functions according to any one of claims 1 to 4, characterized in that: A second pressure gauge (651) is connected to the pressure detection end of the distribution valve (65).

6. The centrifuge lubricating oil box with vacuuming and automatic oil temperature control functions according to any one of claims 1 to 4, characterized in that: The centrifuge lubricating oil tank further comprises a coil cooler (7); the coil cooler (7) is located in the inner cavity of the oil tank body (1) and is fixed to the inner wall of the oil tank body (1); a cooling water inlet end of the coil cooler (7) protrudes from the outside of the oil tank body (1) and is connected to a solenoid valve (71); the cooling water inlet end of the coil cooler (7) is connected to a water outlet end of a cooling water supply device via the solenoid valve (71); the cooling water outlet end of the coil cooler (7) protrudes from the outside of the oil tank body (1) and is connected to a water return end of the cooling water supply device; the solenoid valve (71) is electrically connected to the controller.

7. The centrifuge lubricating oil box with vacuum pumping and automatic oil temperature control functions according to any one of claims 1 to 4, characterized in that: The centrifuge lubricating oil tank further comprises a temperature-controlled electric heater (8), the temperature-controlled electric heater (8) being fixed to one side of the bottom of the oil tank body (1), the heating end of the temperature-controlled electric heater (8) extending into the inner cavity of the oil tank body (1), and the temperature-controlled electric heater (8) being electrically connected to the controller.

8. The centrifuge lubricating oil box with vacuum pumping and automatic oil temperature control functions according to any one of claims 1 to 4, characterized in that: An oil level sight glass (11) is also fixed on the side wall of the upper portion of the oil tank body (1).

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