Oil film bearing oil on-line purification equipment

Abstract

The utility model discloses on-line purification equipment for oil film bearing oil, relates to the technical field of oil product purification, and is used for solving the technical problem that on-line dehydration of the oil film bearing oil is difficult to realize on the premise of ensuring continuous production of the equipment, and the on-line purification equipment for the oil film bearing oil comprises a support frame, an oil inlet pump, an electromagnetic heater, a coalescence filter group, a separation filter group, a precision filter and a PLC (Programmable Logic Controller) control cabinet are arranged on the support frame, the oil inlet pump is provided with an inlet and is communicated with the bottom of the electromagnetic heater, the electromagnetic heater is communicated with the coalescence filter group, the bottom of the coalescence filter group is communicated with the separation filter group, and the precision filter is communicated with the PLC control cabinet. By the adoption of the scheme, online purification of the oil film bearing oil can be carried out, production stopping for special purification is not needed, the purification effect can still meet the requirement, and the technical problem that online dehydration of the oil film bearing oil is difficult to achieve on the premise that continuous production of equipment is guaranteed is well solved.

Description

Technical Field

[0001] This utility model relates to the field of oil purification technology, and in particular to an online purification device for oil film bearing oil. Background Technology

[0002] During the hot rolling process in steel mills, a large amount of cooling water is required for the cooling of the rolling groove. However, due to aging or poor sealing of the seals, the cooling water can easily seep into the lubrication system housing, leading to a significant increase in the water content of the oil film bearing oil. Currently, under the process conditions of steel rolling systems both domestically and internationally, the problem of water ingress into the oil film system is difficult to avoid and difficult to dehydrate online, becoming a common problem faced by the industry.

[0003] The finishing mill is the core equipment of high-speed wire rod mills, and the cleanliness and moisture content of its lubricating oil directly affect the stability of its operation. If the quality of the oil, such as moisture content, is substandard, poor lubrication will lead to abnormal wear of the friction pairs, accelerate mill damage, increase equipment maintenance costs, reduce equipment lifespan, and even cause equipment accidents. Statistics show that lubricating oil with 0.04% water content reduces bearing life by approximately 48% compared to lubricating oil with 0.01% water content. Furthermore, continuous moisture contamination of the oil will cause emulsification and deterioration, accelerate the hydrolysis of additives, and cause the oil's physicochemical properties to deteriorate to the point where oil replacement is required, ultimately necessitating continuous purchase of new oil and resulting in significant economic losses. However, the high operating speed of the mill makes online dehydration difficult, which becomes the key to solving the dehydration problem.

[0004] Therefore, achieving online dehydration while ensuring continuous equipment production, and effectively controlling the moisture content in the bearing oil of the rolling mill production line, is one of the key aspects of ensuring normal equipment operation, extending equipment life, and improving production efficiency.

[0005] In view of the shortcomings of the above solutions in actual production and implementation, modifications and improvements have been made. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after a lot of ingenuity and experimentation, an online oil film bearing oil purification device has been specially developed. The purpose is to solve the technical problem of the difficulty in achieving online dehydration of oil film bearing oil while ensuring continuous production of the equipment, so as to overcome the pain point of the industry. Utility Model Content

[0006] The purpose of this invention is to provide an online purification device for oil film bearing oil, which solves the technical problem that it is difficult to achieve online dehydration of oil film bearing oil while ensuring continuous production of the equipment.

[0007] The technical solution of this utility model is implemented as follows:

[0008] An online oil film bearing oil purification device includes a support frame, on which an oil inlet pump, an electromagnetic heater, a coalescing filter group, a separating filter group, a precision filter, and a PLC control cabinet are installed. The coalescing filter group includes several regularly arranged coalescing filters. The oil inlet pump is provided with an inlet and is connected to the bottom of the electromagnetic heater. The upper end of the electromagnetic heater is connected to the upper end of the multiple coalescing filter groups. The bottom of the coalescing filters is connected to the separating filter groups (connected to the upper port pipe of one side of the two separating filter groups). The upper port pipe of the other side of the separating filter group is connected to the upper pipe of the precision filter. The precision filter is provided with an outlet pipe at its bottom.

[0009] This purification equipment is an integrated device mainly composed of functional units such as PLC control cabinet, oil inlet pump, electromagnetic heater, precision filter, coalescing filter, separation filter and support frame. The PLC control cabinet, oil inlet pump, electromagnetic heater, precision filter, coalescing filter and separation filter are fixed on the support frame, which is convenient for skid-mounted transportation.

[0010] The equipment is equipped with a PLC control system and has a mobile terminal remote transmission function, enabling remote monitoring and unattended operation during purification.

[0011] In a preferred embodiment, the coalescing filter group comprises two rows of coalescing filters connected in parallel.

[0012] In a preferred embodiment, the separation filter group includes two separation filters connected in parallel.

[0013] The parallel connection of coalescing filters and separating filters ensures a high throughput of oil products.

[0014] In a preferred embodiment, the coalescing filter is equipped with a pressure sensor and an alarm device, the separating filter is equipped with a pressure sensor and an alarm device, and the precision filter is equipped with a pressure sensor and an alarm device.

[0015] Each filter is equipped with a pressure sensor. When the pressure reaches the preset pressure during operation, the system will activate an alarm, stop working, and simultaneously activate a backup device to continue purification.

[0016] When the purification process begins, the oil in the rolling mill system is pumped into the electromagnetic heating equipment, where its temperature is heated to 40-50℃, altering the flow properties of the oil film bearing oil. The oil then enters a coalescing filter to demulsify. After demulsification, the oil enters two parallel separation filters, where oil and water are separated by the filter elements. The dehydrated oil then enters a precision filter from the upper end of the separation filter to effectively intercept solid particles. After solid impurities are removed, the oil directly enters the rolling mill system from the lower outlet of the precision filter, achieving continuous purification of the oil film bearing oil system.

[0017] The water in the separator settles to the bottom of the separator tank under gravity and can be discharged through the drain valve.

[0018] The beneficial effects of this utility model are:

[0019] This equipment can achieve high-throughput online purification of oil film bearing oil without affecting the normal operation of the steel rolling production line.

[0020] The purified oil film bearing oil meets the equipment operation and management indicators. Specifically, the mechanical impurities and moisture content fully meet the technical indicators for mill operation, and significantly reduce the equipment failure rate and the frequency of new oil replacement, resulting in significant economic benefits.

[0021] The purification equipment is easy to operate, can be controlled by PLC and can be operated unattended, and the flow rate of the purification equipment fully meets the requirements of the steel rolling production line.

[0022] In summary, this solution enables online purification of oil film bearing oil without requiring production shutdowns for dedicated purification, while still achieving the required purification effect. It effectively solves the technical problem of achieving online dehydration of oil film bearing oil while ensuring continuous equipment production. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0025] In the diagram, 1-PLC control cabinet; 2-oil inlet pump; 3-electromagnetic heater; 4-precision filter; 5-coalescing filter; 6-separation filter; 7-support frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0029] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. 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 a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1 As shown, the online purification equipment for oil film bearing oil includes a support frame 7. The support frame 7 is equipped with an oil inlet pump 2, an electromagnetic heater 3, a coalescing filter group, a separating filter group, a precision filter 4, and a PLC control cabinet 1. The coalescing filter group includes several regularly arranged coalescing filters 5. The oil inlet pump 2 is provided with an inlet and is connected to the bottom of the electromagnetic heater 3. The upper end of the electromagnetic heater 3 is connected to the upper end of the multiple coalescing filter groups. The bottom of the coalescing filter 5 is connected to the separating filter group (connected to the upper port pipe of one side of two separating filters 6). The upper port pipe of the other side of the separating filter group is connected to the upper pipe of the precision filter 4. The precision filter 4 is provided with an outlet pipe at its bottom.

[0031] This purification equipment is an integrated device mainly composed of functional units such as PLC control cabinet 1, oil inlet pump 2, electromagnetic heater 3, precision filter 4, coalescing filter 5, separation filter 6 and support frame 7. Among them, PLC control cabinet 1, oil inlet pump 2, electromagnetic heater 3, precision filter 4, coalescing filter 5 and separation filter 6 are fixed on support frame 7 for easy skid-mounting and transportation.

[0032] The equipment is equipped with a PLC control system and has a mobile terminal remote transmission function, enabling remote monitoring and unattended operation during purification.

[0033] The coalescing filter assembly consists of two rows of coalescing filters 5 connected in parallel.

[0034] The separation filter group includes two separation filters 6, which are connected in parallel.

[0035] The parallel connection of coalescing filter 5 and separating filter 6 ensures a high oil throughput.

[0036] The coalescing filter 5 is equipped with a pressure sensor and an alarm device, the separating filter 6 is equipped with a pressure sensor and an alarm device, and the precision filter 4 is equipped with a pressure sensor and an alarm device.

[0037] Each filter is equipped with a pressure sensor. When the pressure reaches the preset pressure during operation, the system will activate an alarm, stop working, and simultaneously activate a backup device to continue purification.

[0038] When the purification process begins, the oil in the rolling mill system is pumped into the electromagnetic heating equipment, where its temperature is heated to 40-50℃, altering the flow properties of the oil film bearing oil. It then enters the coalescing filter 5 to demulsify the oil. After demulsification, the oil enters two parallel separating filters 6, where oil and water are separated by the filter elements. The dehydrated oil then enters the precision filter 4 from the upper pipe of the separating filter 6, effectively intercepting solid particles. After the solid impurities are removed, the oil directly enters the rolling mill system from the lower outlet pipe of the precision filter 4, achieving the circulation and purification of the oil film bearing oil system.

[0039] The water in the separator filter 6 settles to the bottom of the separator tank under gravity and can be discharged from the drain valve.

[0040] After a single purification process, the moisture content of the oil can be reduced from 26% to below 0.1%, and the mechanical impurities can be reduced from over 1% to below 0.05%. The physicochemical properties of the purified oil fully meet the technical specifications for operation of the hot rolling system. This achieves the regeneration and recycling of oil, reduces equipment failure rates and maintenance costs, and yields significant economic benefits.

[0041] The beneficial effects of this utility model are:

[0042] This equipment can achieve high-throughput online purification of oil film bearing oil without affecting the normal operation of the steel rolling production line.

[0043] The purified oil film bearing oil meets the equipment operation and management indicators. Specifically, the mechanical impurities and moisture content fully meet the technical indicators for mill operation, and significantly reduce the equipment failure rate and the frequency of new oil replacement, resulting in significant economic benefits.

[0044] The purification equipment is easy to operate, can be controlled by PLC and can be operated unattended, and the flow rate of the purification equipment fully meets the requirements of the steel rolling production line.

[0045] In summary, this solution enables online purification of oil film bearing oil without requiring production shutdowns for dedicated purification, while still achieving the required purification effect. It effectively solves the technical problem of achieving online dehydration of oil film bearing oil while ensuring continuous equipment production, thereby avoiding a series of negative impacts caused by moisture contamination.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. An online oil film bearing oil purification device, characterized in that, The system includes a support frame, on which are mounted an oil inlet pump, an electromagnetic heater, a coalescing filter group, a separating filter group, a precision filter, and a PLC control cabinet. The oil inlet pump has an inlet and is connected to the bottom of the electromagnetic heater. The electromagnetic heater is connected to the coalescing filter group, the bottom of the coalescing filter group is connected to the separating filter group, the separating filter group is connected to the precision filter, and the bottom of the precision filter has an outlet pipe.

2. The online oil film bearing oil purification equipment according to claim 1, characterized in that, The coalescing filter group comprises two rows of coalescing filters connected in parallel.

3. The online oil film bearing oil purification equipment according to claim 2, characterized in that, The separation filter group includes two separation filters connected in parallel.

4. The online oil film bearing oil purification equipment according to claim 3, characterized in that, The coalescing filter is equipped with a pressure sensor and an alarm device, the separating filter is equipped with a pressure sensor and an alarm device, and the precision filter is equipped with a pressure sensor and an alarm device.

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