Lubricating oil purification system

Abstract

The utility model discloses a lubricating oil purification system, which relates to the technical field of waste oil treatment and comprises a lubricating oil collection device, a coarse filtration device, a membrane filtration device and a membrane filtration device, the lubricating oil collection device is used for collecting industrial waste lubricating oil, and the coarse filtration device is connected with an outlet of the lubricating oil collection device; the membrane filtering device is connected with an outlet of the coarse filtering device and used for filtering small particles in the waste lubricating oil to obtain impurity oil and purified oil, and an impurity oil outlet of the membrane filtering device is connected with an inlet of the coarse filtering device; and the purified oil collecting device is connected with the purified oil outlet of the membrane filtering device. According to the lubricating oil purification system disclosed by the utility model, the coarse filtration device and the membrane filtration device are arranged, so that the lubricating oil is subjected to coarse filtration and membrane filtration two-stage treatment, the oil quality of the obtained purified oil is high, and the lubricating effect is good when the purified oil is introduced into a power machine in a production line to be repeatedly utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of waste oil treatment, in particular to a lubricating oil purification system. Background Art

[0002] During the entire production process of a power plant, there are many power machines in operation, such as steam turbines, generators, etc. These power machines need to be lubricated. Usually, a lubricating oil system is installed in the power plant to continuously supply lubricating oil to the power machines to meet their lubrication needs during operation. After the lubricating oil passes through the power machines, it is inevitable that some water and solid impurities will be mixed in. The used lubricating oil needs to be treated before it can be reused.

[0003] After the existing lubricating oil treatment system processes the lubricating oil, some fine particles will still be contained. After the lubricating oil mixed with fine particles is repeatedly used in the power machinery, the lubrication effect on the power machinery is poor. Therefore, it is urgent to improve the existing lubricating oil treatment system to solve the technical problems that the purification effect of the existing lubricating oil treatment system is not ideal and the lubrication effect on the power machinery is poor when it is reused. Utility Model Content

[0004] The embodiment of the utility model provides a lubricating oil purification system to solve the technical problems in the related art that the lubricating oil purification system has an unsatisfactory purification effect and a poor lubricating effect on power machinery when reused.

[0005] The present invention provides a lubricating oil purification system, comprising:

[0006] A lubricating oil collection device, which is used to collect industrial waste lubricating oil;

[0007] A coarse filtering device, connected to the outlet of the lubricating oil collecting device, for filtering large particles and water in the waste lubricating oil;

[0008] A membrane filter device, which is connected to the outlet of the coarse filter device and is used to filter small particles in the waste lubricating oil after coarse filtration to obtain impurity oil and purified oil; the membrane filter device is provided with an impurity oil outlet and a purified oil outlet, and the impurity oil outlet of the membrane filter device is connected to the inlet of the coarse filter device;

[0009] A purified oil collecting device is connected to the purified oil outlet of the membrane filtering device.

[0010] In some embodiments, the coarse filtration device comprises:

[0011] a solid-liquid separator connected to the outlet of the lubricating oil collecting device;

[0012] The oil-water separator is connected to the outlet of the solid-liquid separator and is also connected to the inlet of the membrane filtration device.

[0013] In some embodiments, the lubricating oil purification system further includes: a sedimentation collection device connected to the impurity oil outlet of the membrane filtration device, and the upper oil outlet of the sedimentation collection device is connected to the inlet of the solid-liquid separator.

[0014] In some embodiments, the lubricating oil purification system further includes: a first power pump connected to a drain outlet of the sediment collection device.

[0015] In some embodiments, the lubricating oil purification system further includes: a second power pump connected to a sewage outlet of the solid-liquid separator.

[0016] In some embodiments, the lubricating oil purification system further includes: a third power pump connected to a drain outlet of the oil-water separator.

[0017] In some embodiments, the solid-liquid separator is a centrifugal solid-liquid separator.

[0018] In some embodiments, the oil-water separator is a filtering oil-water separator.

[0019] In some embodiments, a flushing component is provided in the membrane filtration device.

[0020] In some embodiments, the filter membrane of the membrane filtration device is a ceramic sintered membrane or an organic synthetic membrane.

[0021] The beneficial effects brought by the technical solution provided by the utility model include:

[0022] The embodiment of the utility model provides a lubricating oil purification system, which provides a coarse filtering device and a membrane filtering device. The coarse filtering device preliminarily removes large particles and water in the waste lubricating oil, and then the preliminarily treated waste lubricating oil passes through the membrane filtering device to filter out small particles to obtain purified oil. After two-stage treatment of coarse filtration and membrane filtration, the purified oil obtained has high oil quality, and has good lubrication effect when it is introduced into the power machinery in the production line for repeated use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of a lubricating oil purification system provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The embodiment of the utility model provides a lubricating oil purification system, which can solve the technical problems that the purification effect of the existing lubricating oil purification system is not ideal and the lubrication effect is poor when reused.

[0027] See also Figure 1 As shown, a lubricating oil purification system includes: a lubricating oil collecting device, a coarse filtering device, a membrane filtering device and a membrane filtering device.

[0028] The lubricating oil collecting device is used to collect industrial waste lubricating oil. The coarse filtering device is connected to the outlet of the lubricating oil collecting device and is used to preliminarily process the industrial waste lubricating oil and filter out large particles and water in the waste lubricating oil. The membrane filtering device is connected to the outlet of the coarse filtering device and is used to filter out small particles in the waste lubricating oil to obtain impurity oil and purified oil. The membrane impurity oil outlet of the membrane filtering device is connected to the inlet of the coarse filtering device, and the impurity oil can enter the coarse filtering device again to repeat the coarse filtering and membrane filtering. The membrane filtering device is provided with an impurity oil outlet and a purified oil outlet. The purified oil collecting device is connected to the purified oil outlet of the membrane filtering device. The purified oil collected by the purified oil collecting device has a quality that meets the lubrication requirements of the power machinery and can be introduced into the production line to lubricate the power machinery.

[0029] The lubricating oil purification system in the embodiment of the utility model is provided with a coarse filtering device and a membrane filtering device. The coarse filtering device preliminarily removes large particles and water in the waste lubricating oil, and then the preliminarily treated waste lubricating oil is passed through the membrane filtering device to filter out small particles to obtain purified oil. After two-stage treatment of coarse filtration and membrane filtration, the purified oil obtained has high oil quality and has good lubrication effect when it is introduced into the power machinery in the production line for repeated use.

[0030] As an alternative embodiment, see Figure 1As shown, the coarse filtering device includes: a solid-liquid separator and an oil-water separator, the solid-liquid separator is connected to the outlet of the lubricating oil collecting device, the oil-water separator is connected to the outlet of the solid-liquid separator, and is also connected to the inlet of the membrane filtering device. The solid-liquid separator can perform preliminary separation of large particles in the waste lubricating oil, and the oil-water separator can remove water from the waste lubricating oil after the large particles are removed, and the graded treatment can effectively treat the large particles and water in the waste lubricating oil. Preferably, the solid-liquid separation device is a centrifugal solid-liquid separator, which has a compact structure, light weight, few failures, low noise and vibration, simple operation, durable, and easy maintenance and replacement. The oil-water separator is a filtering oil-water separator, which has the advantages of high pressure resistance, convenient replacement of filter elements, large processing capacity, small footprint, and good filtering effect.

[0031] As an alternative embodiment, see Figure 1 As shown, the lubricating oil purification system in the embodiment of the utility model further includes a sediment collection device, the sediment collection device is connected to the impurity oil outlet of the membrane filtration device, and the upper oil outlet of the sediment collection device is connected to the inlet of the solid-liquid separator. The sediment collection device can let the impurity oil stand, and then repeatedly introduce the upper oil liquid located at the top after standing to the solid-liquid separator device, and repeatedly perform coarse filtration and membrane filtration to improve the reuse rate of waste lubricating oil.

[0032] As an alternative embodiment, see Figure 1 As shown, the lubricating oil purification system in the embodiment of the utility model further includes a first power pump, which is connected to the sewage outlet of the sediment collection device, and the first power pump can quickly extract the small particles precipitated by the sediment collection device.

[0033] As an alternative embodiment, see Figure 1 As shown, the lubricating oil purification system in the embodiment of the utility model further includes a second power pump, which is connected to the sewage outlet of the solid-liquid separator, and the first power pump can quickly extract the large particles separated by the solid-liquid separator.

[0034] As an alternative embodiment, see Figure 1 As shown, the lubricating oil purification system in the embodiment of the utility model further includes a third power pump, which is connected to the drain outlet of the oil-water separator, and the first power pump can quickly extract the water separated by the oil-water separator.

[0035] As an optional implementation, a flushing component is provided in the membrane filtration device to flush the filtration membrane, thereby increasing the service life and filtration effect of the filtration membrane.

[0036] As an optional embodiment, the filter membrane of the membrane filtration device is a ceramic sintered membrane or an organic synthetic membrane. Ceramic membranes have the advantages of good chemical stability, acid resistance, alkali resistance, organic solvent resistance, high mechanical strength, and high separation efficiency. Organic synthetic membranes have the advantages of a wide range of materials, low manufacturing cost per unit membrane area, and high packing density of membrane components.

[0037] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0038] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A lubricating oil purification system, characterized in that: include: A lubricating oil collection device, which is used to collect industrial waste lubricating oil; A coarse filtering device, connected to the outlet of the lubricating oil collecting device, for filtering large particles and water in the waste lubricating oil; A membrane filter device, which is connected to the outlet of the coarse filter device and is used to filter small particles in the waste lubricating oil after coarse filtration to obtain impurity oil and purified oil; the membrane filter device is provided with an impurity oil outlet and a purified oil outlet, and the impurity oil outlet of the membrane filter device is connected to the inlet of the coarse filter device; A purified oil collecting device is connected to the purified oil outlet of the membrane filtering device.

2. A lubricating oil purification system according to claim 1, characterized in that: The coarse filtering device comprises: a solid-liquid separator connected to the outlet of the lubricating oil collecting device; The oil-water separator is connected to the outlet of the solid-liquid separator and is also connected to the inlet of the membrane filtration device.

3. A lubricating oil purification system according to claim 2, characterized in that: Also includes: The sedimentation collection device is connected to the impurity oil outlet of the membrane filtration device, and the upper oil outlet of the sedimentation collection device is connected to the inlet of the solid-liquid separator.

4. A lubricating oil purification system according to claim 3, characterized in that: Also includes: A first power pump is connected to the sewage outlet of the sediment collection device.

5. A lubricating oil purification system as claimed in claim 2, characterized in that: Also includes: The second power pump is connected to the sewage outlet of the solid-liquid separator.

6. A lubricating oil purification system as claimed in claim 2, characterized in that: Also includes: The third power pump is connected to the drain outlet of the oil-water separator.

7. A lubricating oil purification system according to claim 2, characterized in that: The solid-liquid separator is a centrifugal solid-liquid separator.

8. A lubricating oil purification system according to claim 2, characterized in that: The oil-water separator is a filtering type oil-water separator.

9. A lubricating oil purification system according to claim 1, characterized in that: A flushing component is arranged in the membrane filtration device.

10. A lubricating oil purification system according to claim 1, characterized in that: The filter membrane of the membrane filter device is a ceramic sintered membrane or an organic synthetic membrane.

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