Energy-saving vacuum oil filter

Abstract

An oil inlet valve, a primary filter, a vacuum heating tank, an oil drain pump, a fine filter and an oil outlet valve are sequentially arranged between an oil inlet and an oil outlet through pipelines, the top of the vacuum heating tank is communicated with a heat exchanger, and water vapor in the vacuum heating tank enters the heat exchanger through a pipeline; an oil inlet pipeline at the front part of the vacuum heating tank penetrates through a heat exchanger, the other end of the heat exchanger is communicated with a vacuum pump, and water vapor in the vacuum heating tank can primarily heat oil entering the vacuum heating tank through the heat exchanger under the action of the vacuum pump, so that the heat of the water vapor is effectively utilized, the heat utilization rate is improved, and energy conservation and emission reduction are realized; the heat exchanger is arranged between the oil inlet valve and the primary filter, oil entering the primary filter can be primarily heated through the heat exchanger, the primary filter has high filtering performance on oil with a certain temperature, and the filtering performance of the vacuum oil filter is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum oil filtration technology, and in particular to an energy-saving vacuum oil filtration machine. Background Technology

[0002] The vacuum oil purifier is designed based on the different boiling points of water and oil. It consists of a vacuum heating tank, a fine filter, a condenser, a primary filter, a water tank, a vacuum pump, an oil discharge pump, and an electrical cabinet. The vacuum pump extracts air from the vacuum tank to create a vacuum. Under atmospheric pressure, the external oil enters the primary filter through the inlet pipe to remove larger particles. Then, it enters the heating tank, where it is heated to 40-75°C. The oil then passes through an automatic oil float valve, which automatically controls the amount of oil entering and exiting the vacuum tank to maintain balance.

[0003] After being heated, the oil is rapidly separated into a semi-mist state by the rapidly rotating spray blades. The water in the oil evaporates quickly into water vapor, which is continuously drawn into the condenser by the vacuum pump. The water vapor entering the condenser is cooled and then reverts back to water and is released. The oil in the vacuum heating tank is discharged into the fine filter by the oil discharge pump. Through the filter paper or filter element, particulate impurities are filtered out, thus completing the entire process of the vacuum oil purifier rapidly removing impurities, water, and gases from the oil, allowing clean oil to be discharged from the outlet.

[0004] Application No. 201511003297.8 discloses a vacuum oil filter. In this vacuum oil filter, heating occurs outside the vacuum tank during oil-water separation. Water has a high boiling point, resulting in energy waste and damage to oil quality. The vacuum oil filter comprises an oil inlet valve, a primary filter, a heater, a vacuum tank, an oil pump, a regeneration tank, and a secondary filter connected in sequence. Its key feature is that a vacuum pump is connected to the vacuum tank, and the heater is located inside the vacuum tank. Compared with existing technologies, the significant advantages of this invention are: 1. Energy saving and high efficiency; 2. Safety and reliability; 3. The heater and steam-water separator are both located inside the vacuum tank, resulting in low energy consumption and facilitating rapid oil-water separation.

[0005] In the aforementioned application, water vapor in the vacuum chamber is extracted by a vacuum pump, condensed into water by a condenser, and discharged. The heat of the water vapor is wasted by the condenser, but the oil needs to be heated and requires energy when entering the vacuum tank.

[0006] Therefore, the applicant believes that using the heat of water vapor to preheat the oil entering the vacuum tank can improve heat utilization and achieve energy conservation and emission reduction. Utility Model Content

[0007] In response to the problems in related technologies, this application discloses an energy-saving vacuum oil filter, which solves the problem of wasted energy due to the inability to utilize the heat of water vapor in the prior art.

[0008] To achieve the above objectives, this application provides the following technical solution:

[0009] An energy-saving vacuum oil filtration machine includes an oil inlet and an oil outlet. An oil inlet valve is sequentially installed between the oil inlet and the oil outlet via a pipeline. A primary filter is installed after the oil inlet valve. A vacuum heating tank is connected to the rear of the primary filter. An oil discharge pump is connected to the rear of the vacuum heating tank. A fine filter is installed after the oil discharge pump. An oil outlet valve is installed after the fine filter. A heat exchanger is connected to the top of the vacuum heating tank. An oil inlet pipeline at the front of the vacuum heating tank passes through the heat exchanger. A vacuum pump is connected to the other end of the heat exchanger.

[0010] As a further aspect of this application: the heat exchanger is disposed between the oil inlet valve and the primary filter.

[0011] As a further aspect of this application: the vacuum heating tank is equipped with a heater inside.

[0012] As a further aspect of this application: a condenser is provided between the heat exchanger and the vacuum pump.

[0013] As a further aspect of this application, the fine filter is provided with a multi-stage filter element assembly.

[0014] As a further aspect of this application, the fine filter is provided with a drain valve at its bottom.

[0015] In summary, the beneficial effects of this application are as follows:

[0016] 1. Energy-saving vacuum oil filter: The oil inlet and outlet are connected by pipelines to the oil inlet and outlet, which are sequentially equipped with an oil inlet valve, a primary filter, a vacuum heating tank, an oil discharge pump, a fine filter, and an oil outlet valve. A heat exchanger is connected to the top of the vacuum heating tank. Water vapor inside the vacuum heating tank enters the heat exchanger through pipelines. The oil inlet pipeline at the front of the vacuum heating tank passes through the heat exchanger, and a vacuum pump is connected to the other end of the heat exchanger. Under the action of the vacuum pump, the water vapor inside the vacuum heating tank can preliminarily heat the oil entering the vacuum heating tank through the heat exchanger. This effectively utilizes the heat of the water vapor, improves the heat utilization rate, and achieves energy saving and emission reduction.

[0017] 2. The heat exchanger is located between the oil inlet valve and the primary filter. The heat exchanger can preheat the oil entering the primary filter. The primary filter has high filtration performance for oil with a certain temperature, thus improving the filtration performance of the vacuum oil filter.

[0018] 3. The vacuum heating tank is equipped with a heater inside, which consumes less energy and facilitates rapid oil-water separation.

[0019] 4. A condenser is installed between the heat exchanger and the vacuum pump. The condenser can cool and liquefy water vapor and release the liquefied water.

[0020] 5. The fine filter is equipped with a multi-stage filter element assembly, which improves the filtration performance of the vacuum oil purifier.

[0021] 6. A drain valve is provided at the bottom of the fine filter. The drain valve can discharge the dirty oil inside the fine filter, which improves the fine filter performance and the filtration efficiency of the vacuum oil filter. Attached Figure Description

[0022] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of this application.

[0025] Figure label annotations:

[0026] 1. Oil inlet; 2. Oil inlet valve; 3. Heat exchanger; 4. Pre-filter; 5. Vacuum heating tank; 6. Heater; 7. Oil discharge pump; 8. Fine filter; 9. Drain valve; 10. Oil outlet valve; 11. Oil outlet; 12. Condenser; 13. Vacuum pump; Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects disclosed in this embodiment as detailed in the appended claims.

[0028] It should be noted that all directional indicators in the embodiments (such as up, down, left, right, front, back, etc.) 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 the embodiments is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. It is merely to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0030] To further understand the content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0031] like Figure 1 As shown:

[0032] An energy-saving vacuum oil filtration machine includes an oil inlet 1 and an oil outlet 11. An oil inlet valve 2 is sequentially installed between the oil inlet 1 and the oil outlet 11 via a pipeline. A primary filter 4 is installed after the oil inlet valve 2. The primary filter 4 can remove larger particles. A vacuum heating tank 5 is connected to the rear of the primary filter 4. An oil discharge pump 7 is connected to the rear of the vacuum heating tank 5. A fine filter 8 is installed after the oil discharge pump 7. The fine filter 8 achieves high-precision filtration of the oil. An oil outlet valve 10 is installed after the fine filter 8.

[0033] The vacuum heating tank 5 is equipped with a heater 6 inside, and a heat exchanger 3 is connected to the top of the vacuum heating tank 5. The heat exchanger 3 is located between the oil inlet valve 2 and the primary filter 4.

[0034] The oil inlet pipe at the front of the primary filter 4 passes through the heat exchanger 3, and the other end of the heat exchanger 3 is connected to a vacuum pump 13. A condenser 12 is provided between the heat exchanger 3 and the vacuum pump 13.

[0035] In addition, the fine filter 8 is equipped with a multi-stage filter element assembly, and the bottom of the fine filter 8 is equipped with a drain valve 9.

[0036] In practical applications:

[0037] An oil inlet valve 2, a primary filter 4, a vacuum heating tank 5, an oil discharge pump 7, a fine filter 8, and an oil outlet valve 10 are sequentially installed between the oil inlet 1 and the oil outlet 11 via pipelines. A heat exchanger 3 is connected to the top of the vacuum heating tank 5. Water vapor inside the vacuum heating tank 5 enters the heat exchanger 3 through the pipeline. The oil inlet pipeline at the front of the vacuum heating tank 5 passes through the heat exchanger 3. A vacuum pump 13 is connected to the other end of the heat exchanger 3. Under the action of the vacuum pump 13, the water vapor inside the vacuum heating tank 5 can preliminarily heat the oil entering the vacuum heating tank 5 through the heat exchanger 3. This effectively utilizes the heat of the water vapor, improves the heat utilization rate, and achieves energy saving and emission reduction.

[0038] The heat exchanger 3 is located between the oil inlet valve 2 and the primary filter 4. The oil entering the primary filter 4 can be preheated through the heat exchanger 3. The primary filter 4 has high filtration performance for oil with a certain temperature, which improves the filtration performance of the vacuum oil filter.

[0039] The vacuum heating tank 5 is equipped with a heater 6, which consumes less energy and facilitates rapid oil-water separation.

[0040] A condenser 12 is provided between the heat exchanger 3 and the vacuum pump 13. The condenser 12 can cool and liquefy water vapor and release the liquefied water.

[0041] The fine filter 8 is equipped with a multi-stage filter element assembly, and the multi-stage fine filtration improves the filtration performance of the vacuum oil purifier.

[0042] The bottom of the fine filter 8 is equipped with a drain valve 9, which can discharge the dirty oil inside the fine filter 8, thereby improving the fine filtration performance of the fine filter 8 and increasing the filtration efficiency of the vacuum oil filter.

[0043] Finally, it should be noted that the above disclosure is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. The scope of this application is limited only by the appended claims.

Claims

1. An energy-saving vacuum oil filter, comprising an oil inlet (1) and an oil outlet (11), an oil inlet valve (2) is arranged between the oil inlet (1) and the oil outlet (11) in sequence through a pipeline, an initial filter (4) is arranged at the rear of the oil inlet valve (2), a vacuum heating tank (5) is arranged at the rear of the initial filter (4) in communication, an oil discharge pump (7) is arranged at the rear of the vacuum heating tank (5) in communication, a fine filter (8) is arranged at the rear of the oil discharge pump (7), and an oil outlet valve (10) is arranged at the rear of the fine filter (8), characterized in that: The top of the vacuum heating tank (5) is communicated with a heat exchanger (3), an oil inlet pipeline of the vacuum heating tank (5) passes through the heat exchanger (3), and the other end of the heat exchanger (3) is communicated with a vacuum pump (13).

2. The energy-saving vacuum oil filter according to claim 1, characterized in that: The heat exchanger (3) is arranged between the oil inlet valve (2) and a primary filter (4).

3. The energy-saving vacuum oil filter according to claim 1, characterized in that: The vacuum heating tank (5) is internally provided with a heater (6).

4. The energy-saving vacuum oil filter according to claim 1, characterized in that: A condenser (12) is arranged between the heat exchanger (3) and the vacuum pump (13).

5. The energy-saving vacuum oil filter according to claim 1, characterized in that: The fine filter (8) is provided with a multi-stage filter core assembly.

6. The energy-saving vacuum oil filter according to claim 5, characterized in that: The bottom end of the fine filter (8) is provided with a blowdown valve (9).

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