Skid-mounted equipment for vacuum dehydration of industrial lubricating oil

By using a skid-mounted vacuum dehydration device with a T-shaped vacuum dehydration tank and a PLC control system, the problems of large footprint and low efficiency of lubricating oil vacuum dehydration equipment are solved, achieving efficient lubricating oil purification and convenient operation of the equipment.

CN223930691UActive Publication Date: 2026-02-24WEIHAI HAISI NUO NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202520345344.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-24
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing lubricating oil vacuum dehydration equipment occupies a large area and is inefficient. In particular, the overflow and foam accumulation caused by the mismatch between the oil inlet and outlet frequencies affect the purification efficiency and may even damage the vacuum pump.

Method used

The skid-mounted vacuum dehydration equipment includes a T-shaped vacuum dehydration tank, a PLC control system, an ultrasonic level gauge, and an electromagnetic heater. The PLC control system and ultrasonic level gauge monitor the liquid level in real time to prevent overflow. The skid-mounted design reduces the footprint and improves the mobility of the equipment.

Benefits of technology

It effectively improves the efficiency of lubricating oil vacuum dehydration equipment, prevents oil overflow, reduces equipment footprint, and enhances the ease of operation and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses skid-mounted equipment for vacuum dehydration of industrial lubricating oil, which relates to the technical field of vacuum dehydration equipment, is used for solving the problem of low operation efficiency of the vacuum dehydration equipment of the lubricating oil, and comprises an oil receiving disc, an electromagnetic heater, a bag type filter, a condensation tank, a power distribution cabinet and a vacuum dehydration tank are arranged on the oil receiving disc, and a vacuum pump is arranged at the top of the condensation tank; the oil pump is communicated with the electromagnetic heater, the electromagnetic heater is communicated with the vacuum dehydration tank, the upper end of the vacuum dehydration tank is communicated with the condensation tank, and the bottom of the vacuum dehydration tank is communicated with the bag type filter. The vacuum dehydration tank is additionally provided with the ultrasonic liquid level meter for detecting the liquid level, the oil liquid level is prevented from rising, the oil enters the condensation tank from the pipeline at the upper end of the separation tank, the purification efficiency is not influenced, and the problem that lubricating oil vacuum dehydration equipment is low in operation efficiency is solved.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum dehydration equipment technology, and in particular to a skid-mounted device for vacuum dehydration of industrial lubricating oil. Background Technology

[0002] Currently, vacuum dehydration equipment for lubricating oil is widely used in the industry, but it generally suffers from problems such as large footprint and low efficiency, specifically:

[0003] 1. The vacuum dehydration tank is an integrated unit consisting of a separation tank and a settling tank. The upper part is the separation tank, and the lower part is the settling tank. Traditional vacuum dehydration tanks have cylindrical separation and settling tanks of equal diameter, which occupy a large area.

[0004] 2. Traditional vacuum dehydration equipment is all manually operated. If the oil inlet and outlet frequencies are disturbed, when the oil inlet frequency is higher than the oil outlet frequency, the liquid level in the vacuum dehydration tank will rise, and the oil will overflow into the condensation tank. Alternatively, if the oil to be purified has poor foam characteristics, the oil may generate more foam due to mechanical disturbance of the equipment. When the foam accumulates, the liquid level will gradually rise, eventually causing the oil to overflow into the evaporation outlet pipe and then enter the water condensation chamber, resulting in low efficiency. In severe cases, it will damage the vacuum pump and the oil yield will be low.

[0005] Efficiency is the most important issue in the industry and needs to be improved.

[0006] Therefore, in view of the shortcomings of the above-mentioned solutions in actual production and implementation, modifications and improvements have been made. At the same time, in the spirit and concept of seeking excellence, and with the assistance of professional knowledge and experience, and after much ingenuity and experimentation, a skid-mounted device for vacuum dehydration of industrial lubricating oil is specially provided to solve the problem of low operating efficiency of vacuum dehydration equipment for lubricating oil. Utility Model Content

[0007] The purpose of this invention is to provide a skid-mounted device for vacuum dehydration of industrial lubricating oil, which solves the problem of low operating efficiency of vacuum dehydration equipment for lubricating oil.

[0008] The technical solution of this utility model is implemented as follows:

[0009] A skid-mounted device for vacuum dehydration of industrial lubricating oil includes an oil receiving tray, on which are installed an electromagnetic heater, a bag filter, a condenser, an electrical control cabinet, and a vacuum dehydration tank. The top of the condenser is equipped with a vacuum pump.

[0010] The oil pump is equipped with an inlet, and the oil pump is connected to the electromagnetic heater. The electromagnetic heater is connected to the vacuum dehydration tank. The upper end of the vacuum dehydration tank is connected to the condenser tank, and the bottom of the vacuum dehydration tank is connected to the bag filter. The bag filter is equipped with an outlet.

[0011] The oil receiving tray is equipped with casters at the bottom, and the entire device is a mobile skid-mounted device.

[0012] In a preferred embodiment, the bottom of the electromagnetic heater, vacuum dehydration tank, condenser, and bag filter are each connected to a support frame and fixed to the oil receiving tray using the support frame.

[0013] In a preferred embodiment, the vacuum dehydration tank includes a top separation tank and a bottom settling tank. The separation tank is a horizontally placed cylindrical shape, and the settling tank is a vertically placed cylindrical shape. The separation tank and the bottom settling tank are arranged in a T-shape.

[0014] In a preferred embodiment, the vacuum dehydration tank is equipped with an ultrasonic level gauge.

[0015] This vacuum dehydration equipment adopts a skid-mounted design and uses a PLC control system. The bag filter is equipped with a pressure transmitter, which transmits the pressure signal to the PLC control system in real time. When the pressure reaches the preset upper limit, an alarm will be triggered and the equipment will stop running. The filter bag must be replaced before it can be restarted.

[0016] The electromagnetic heater is equipped with a temperature transmitter, which turns the heating on or off based on the actual detected temperature and the preset temperature, further saving energy.

[0017] The vacuum dehydration tank adopts a T-shaped design, combining a larger separation tank with a smaller settling tank. This ensures sufficient surface area for water evaporation while minimizing the space required for the settling tank, thus reducing the equipment's footprint while ensuring efficient water evaporation. The separation tank is equipped with an ultrasonic level gauge, which is unaffected by pressure and temperature, transmits a stable signal, and effectively detects foam levels to prevent overflow. When the liquid level exceeds the set upper limit, the PLC can control the pump's on / off state via a relay to maintain the liquid level within the set range.

[0018] The dehydration equipment is integrated into the oil receiving tray to prevent oil leakage when draining oil or replacing filter media. At the same time, the equipment is designed as a mobile skid-mounted device, making it more convenient to transport and operate.

[0019] During operation, the oil to be dehydrated is fed into an electromagnetic heater via an inlet pump for heating, and then enters a vacuum dehydration pump. The water evaporated under the appropriate vacuum and temperature conditions flows through a pipe at the top of the separator tank into a condenser for condensation. The dehydrated oil then flows through a settling tank and finally into a bag filter for pre-filtration of mechanical impurities. During system operation, the oil needs to be circulated and purified multiple times to ensure that the moisture and mechanical impurity levels meet the technical specifications.

[0020] After the oil purification process is completed, the condensate can be discharged from the condensate tank.

[0021] The beneficial effects of this utility model are:

[0022] The structure designed using this utility model effectively improves the efficiency of the vacuum dehydration equipment. The vacuum dehydration tank is equipped with an ultrasonic level gauge to detect the liquid level, preventing the oil level from rising and causing the oil to enter the condenser from the pipeline at the top of the separator, thus affecting the purification efficiency. This solves the problem of low operating efficiency of the lubricating oil vacuum dehydration equipment.

[0023] Secondly, the oil receiving tray can prevent oil from overflowing and causing leakage, and the vacuum dehydration tank adopts a T-shaped design, which can minimize the space occupied by the settling tank. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0026] In the diagram, 1-oil pump; 2-electromagnetic heater; 3-bag filter; 4-vacuum dehydration tank; 5-oil receiving tray; 6-condensate tank; 7-vacuum pump; 8-distribution cabinet; 9-ultrasonic level gauge. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figure 1 As shown, a skid-mounted device for vacuum dehydration of industrial lubricating oil includes an oil receiving tray 5, on which are installed an electromagnetic heater 2, a bag filter 3, a condenser, an electrical control cabinet 8, and a vacuum dehydration tank 4. The top of the condenser 6 is equipped with a vacuum pump 7.

[0032] Oil pump 1 is equipped with an inlet. Oil pump 1 is connected to electromagnetic heater 2. Electromagnetic heater 2 is connected to vacuum dehydration tank 4. The upper end of vacuum dehydration tank 4 is connected to condenser 6. The bottom of vacuum dehydration tank 4 is connected to bag filter 3. Bag filter 3 is equipped with an outlet.

[0033] The oil receiving pan 5 is equipped with casters at the bottom, and the entire equipment is a movable skid-mounted device.

[0034] The bottom of each of the electromagnetic heater 2, vacuum dehydration tank 4, condenser tank 6, and bag filter 3 is connected to a support frame and fixed to the oil receiving tray 5 using the support frame.

[0035] The vacuum dehydration tank 4 includes a top separation tank and a bottom settling tank. The separation tank is a horizontally placed cylindrical shape, and the settling tank is a vertically placed cylindrical shape. The separation tank and the bottom settling tank are arranged in a T-shape.

[0036] An ultrasonic level gauge 9 is installed on the vacuum dehydration tank 4.

[0037] This vacuum dehydration equipment adopts a skid-mounted design and uses a PLC control system. The bag filter 3 is equipped with a pressure transmitter, which transmits the pressure signal to the PLC control system in real time. When the pressure reaches the preset upper limit, an alarm will be triggered and the equipment will stop running. The filter bag must be replaced before it can be restarted.

[0038] The electromagnetic heater 2 is equipped with a temperature transmitter, which turns the heating on or off based on the actual detected temperature and the preset temperature, further saving energy.

[0039] The vacuum dehydration tank 4 adopts a T-shaped design, combining a larger separation tank with a smaller settling tank. This ensures sufficient surface area for water evaporation while minimizing the space required for the settling tank, thus reducing the equipment's footprint while ensuring efficient water evaporation. The separation tank is equipped with an ultrasonic level gauge, which is unaffected by pressure and temperature, transmits a stable signal, and effectively detects foam levels to prevent overflow. When the liquid level exceeds the set upper limit, the PLC can control the pump's on / off state via a relay to maintain the liquid level within the set range.

[0040] The dehydration equipment is integrated into the oil receiving tray 5 to prevent oil leakage when draining oil or replacing filter media. At the same time, the equipment is designed as a mobile skid-mounted device, making it more convenient to transport and operate.

[0041] During operation, the oil to be dehydrated is introduced into the electromagnetic heater 2 via the oil inlet pump 1 for heating, and then enters the vacuum dehydration pump. The water evaporated under the appropriate vacuum and temperature enters the condenser 6 through the pipe at the top of the separator tank for condensation. The dehydrated oil flows through the settling tank and finally enters the bag filter 3 for pre-filtration of mechanical impurities. During system operation, the oil to be treated requires multiple cycles of purification to achieve the required moisture and mechanical impurity levels.

[0042] After the oil purification is completed, the condensate can be discharged from the condensate tank 6.

[0043] The beneficial effects of this utility model are:

[0044] The structure designed using this utility model effectively improves the efficiency of the vacuum dehydration equipment. The vacuum dehydration tank is equipped with an ultrasonic level gauge to detect the liquid level, preventing the oil level from rising and causing the oil to enter the condenser from the pipeline at the top of the separator, thus affecting the purification efficiency. This solves the problem of low operating efficiency of the lubricating oil vacuum dehydration equipment.

[0045] Secondly, the oil receiving tray can prevent oil from overflowing and causing leakage, and the vacuum dehydration tank adopts a T-shaped design, which can minimize the space occupied by the settling tank.

[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. A skid-mounted device for vacuum dehydration of industrial lubricating oil, characterized in that, It includes an oil receiving tray, on which are installed an electromagnetic heater, a bag filter, a condenser, a power distribution cabinet and a vacuum dehydration tank, and the top of the condenser is equipped with a vacuum pump; The oil pump is equipped with an inlet, and the oil pump is connected to the electromagnetic heater. The electromagnetic heater is connected to the vacuum dehydration tank. The upper end of the vacuum dehydration tank is connected to the condenser tank, and the bottom of the vacuum dehydration tank is connected to the bag filter. The bag filter is equipped with an outlet. The oil receiving tray is equipped with casters at the bottom, and the entire device is a mobile skid-mounted device.

2. The skid-mounted equipment for vacuum dehydration of industrial lubricating oil according to claim 1, characterized in that, The electromagnetic heater, vacuum dehydration tank, condenser, and bag filter are each connected to a support frame at their bottom and are fixed to the oil receiving tray using the support frame.

3. The skid-mounted equipment for vacuum dehydration of industrial lubricating oil according to claim 1, characterized in that, The vacuum dehydration tank includes a top separation tank and a bottom settling tank. The separation tank is a horizontally placed cylindrical shape, and the settling tank is a vertically placed cylindrical shape. The separation tank and the bottom settling tank are arranged in a T-shape.

4. The skid-mounted equipment for vacuum dehydration of industrial lubricating oil according to claim 1, characterized in that, The vacuum dehydration tank is equipped with an ultrasonic level gauge.