Oil liquid multi-stage filtering equipment capable of replacing filter element on line

Abstract

The utility model discloses oil liquid multi-stage filtering equipment capable of replacing filter elements on line, each stage of filter element assembly is provided with a control valve at the oil inlet end and the oil outlet end, a control valve is arranged on a standby pipeline, and by controlling opening and closing of the control valves, the control valves are controlled to be closed before and after the filter element assemblies with the filter elements needing to be replaced; when a control valve on a corresponding standby pipeline is opened, oil liquid bypassing can be realized, a filter element can be replaced without shutdown, online filter element replacement is realized, the filtering efficiency of filtering equipment is improved, and the industrial production efficiency is ensured; due to the arrangement of the final-stage filter element standby assembly, the replacement operation of the final-stage filter element is realized, the passing oil liquid is ensured to be filtered by the final-stage filter element, the oil liquid filtering precision is ensured, and the filtering efficiency of the filtering equipment is improved; the arrangement of the primary filter element standby assembly realizes the replacement operation of the primary filter element, ensures that the passing oil liquid is filtered by the primary filter element, relieves the burden of the post-stage filter element, protects the post-stage filter element, and prolongs the service life of the filter element of the filter equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of oil filtration equipment, and in particular to a multi-stage oil filtration equipment with online filter element replacement. Background Technology

[0002] In industrial production processes, contaminated oil can be reused multiple times after purification. Multi-stage oil filtration equipment can efficiently filter oil through multi-stage filter elements.

[0003] In related technologies, filter elements need to be replaced after reaching their filtration load. Each filter element replacement requires machine shutdown, which reduces the filtration efficiency of the filtration equipment and affects industrial production efficiency. Utility Model Content

[0004] To address the problems in related technologies, this application discloses a multi-stage oil filtration device with online filter element replacement, which solves the problem that multi-stage filtration devices in the background technology require shutdown for filter element replacement.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A multi-stage oil filtration device with online filter element replacement includes an oil inlet and an oil outlet. A primary filter element assembly, a multi-stage intermediate filter element assembly, and a final filter element assembly are connected in series between the oil inlet and the oil outlet via a connecting pipeline. The filtration accuracy of the primary filter element assembly, the intermediate filter element assembly, and the final filter element assembly decreases sequentially. Each of the primary filter element assembly, the intermediate filter element assembly, and the final filter element assembly is equipped with a control valve at both the oil inlet and the oil outlet. Each of the primary filter element assembly, the intermediate filter element assembly, and the final filter element assembly is connected in parallel with a backup pipeline, and the backup pipeline is equipped with a control valve.

[0007] As a further aspect of this application: a backup final-stage filter element assembly is provided on the parallel backup pipeline of the final-stage filter element assembly, and the control valve is provided at both the oil inlet and oil outlet ends of the backup final-stage filter element assembly.

[0008] As a further aspect of this application: a primary filter element backup assembly is provided on the parallel backup pipeline of the primary filter element assembly, and the control valve is provided at both the oil inlet and oil outlet of the primary filter element backup assembly.

[0009] As a further aspect of this application, pressure measuring components are provided on the primary filter element assembly, the primary filter element spare assembly, the intermediate filter element assembly, the final filter element assembly, and the final filter element spare assembly.

[0010] As a further aspect of this application: the pressure measuring component includes a pressure gauge.

[0011] As a further aspect of this application, an oil pump assembly is provided at the oil inlet.

[0012] As a further aspect of this application, an oil inlet valve is provided at the rear end of the oil inlet pump assembly.

[0013] In summary, the beneficial effects of this application are as follows:

[0014] 1. This multi-stage oil filtration equipment allows for online filter element replacement. The inlet and outlet are connected in series via a pipeline, comprising a primary filter element assembly, multiple intermediate filter element assemblies, and a final filter element assembly. The filtration precision of each filter element decreases sequentially, achieving high-efficiency oil filtration. Each primary, intermediate, and final filter element assembly has control valves at both the inlet and outlet. All three assemblies are connected in parallel via backup pipelines, each equipped with a control valve. By controlling the opening and closing of these valves, the control valves before and after the filter element requiring replacement close, while the corresponding control valve on the backup pipeline opens, allowing oil to bypass the filter. Filter element replacement can be performed online without stopping the machine, improving filtration efficiency and ensuring industrial production efficiency.

[0015] 2. A spare final-stage filter element assembly is provided on the parallel spare pipeline. The spare final-stage filter element assembly is equipped with control valves at both the oil inlet and outlet ends. The setting of the spare final-stage filter element assembly realizes the replacement operation of the final-stage filter element, ensuring that all oil passes through the final-stage filter element for filtration, thus ensuring the oil filtration accuracy and improving the filtration efficiency of the filtration equipment.

[0016] 3. A primary filter element backup assembly is provided on the parallel backup pipeline of the primary filter element assembly. The primary filter element backup assembly is equipped with control valves at both the oil inlet and outlet ends. The setting of the primary filter element backup assembly realizes the replacement operation of the primary filter element, ensures that all oil passes through the primary filter element for filtration, reduces the burden on the subsequent filter elements, protects the subsequent filter elements, and improves the service life of the filter elements of the filtration equipment.

[0017] 4. Pressure testing components are installed on the primary filter element assembly, primary filter element spare assembly, intermediate filter element assembly, final filter element assembly, and final filter element spare assembly. The pressure testing components include pressure gauges, which can test the pressure of each filter element assembly. When the pressure is abnormal, it can be determined that the filter element has reached the end of its life and the filter element can be replaced in time, thus ensuring the filtration efficiency of the filtration equipment. Attached Figure Description

[0018] 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.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the structure of this application.

[0021] Figure label annotations:

[0022] 1. Oil inlet; 2. Oil outlet; 3. Connecting pipeline; 4. Primary filter element assembly; 41. Primary filter element spare assembly; 5. Intermediate filter element assembly; 6. Final filter element assembly; 61. Final filter element spare assembly; 7. Control valve; 8. Spare pipeline; 9. Pressure measuring assembly; 10. Oil inlet pump assembly; 11. Oil inlet valve; Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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:

[0027] like Figure 1 As shown:

[0028] The oil multi-stage filtration equipment with online filter element replacement includes an oil inlet 1 and an oil outlet 2. The oil inlet 1 and the oil outlet 2 are connected in series via a connecting pipe 3, which provides a primary filter element assembly 4, a six-stage intermediate filter element assembly 5, and a final filter element assembly 6. The filtration accuracy of the primary filter element assembly 4, the intermediate filter element assembly 5, and the final filter element assembly 6 decreases sequentially.

[0029] Each filter element assembly contains a nano-filter, with the filtration precision decreasing sequentially, enabling nano-level precision filtration of oil.

[0030] An oil inlet pump assembly 10 is provided at the oil inlet 1. The oil inlet pump assembly 10 includes an oil inlet pump, which provides oil supply to the filtration equipment.

[0031] The oil inlet pump assembly 10 is equipped with an oil inlet valve 11 at its rear end. The oil inlet valve 11 is a master control valve. Closing the oil inlet valve 11 allows for overall equipment maintenance.

[0032] The primary filter element assembly 4, the intermediate filter element assembly 5, and the final filter element assembly 6 are all equipped with control valves 7 at both the oil inlet and outlet ends. The control valves 7 at both ends of the filter element assembly can be closed simultaneously when replacing the filter element, so as to achieve efficient replacement of the filter element.

[0033] The primary filter element assembly 4, the intermediate filter element assembly 5, and the final filter element assembly 6 are all equipped with spare pipelines 8 connected in parallel.

[0034] Each intermediate filter element assembly 5 has a spare pipeline 8 equipped with a control valve 7.

[0035] The final stage filter element assembly 6 is connected to the parallel backup pipeline 8 and is equipped with a final stage filter element backup assembly 61. Both the oil inlet and oil outlet ends of the final stage filter element backup assembly 61 are equipped with control valves 7. The control valves 7 at both ends of the filter element assembly can be closed simultaneously when the filter element is replaced, so as to achieve efficient replacement of the filter element.

[0036] The primary filter element assembly 4 is connected to the parallel backup pipeline 8 and is equipped with a primary filter element backup assembly 41. The oil inlet and oil outlet of the primary filter element backup assembly 41 are equipped with control valves 7. The control valves 7 at both ends of the filter element assembly can be closed simultaneously when the filter element is replaced, so as to achieve efficient replacement of the filter element.

[0037] In addition, pressure measuring components 9 are provided on the primary filter element assembly 4, the primary filter element spare assembly 41, the intermediate filter element assembly 5, the final filter element assembly 6, and the final filter element spare assembly 61. The pressure measuring components 9 include pressure gauges, which can monitor the internal pressure of the filter element assembly.

[0038] In practical applications:

[0039] This multi-stage oil filtration equipment allows for online filter element replacement. A primary filter element assembly 4, a multi-stage intermediate filter element assembly 5, and a final filter element assembly 6 are connected in series via a connecting pipe 3 between the oil inlet 1 and the oil outlet 2. The filtration precision of each filter element assembly decreases sequentially, achieving efficient oil filtration. Each of the primary, intermediate, and final filter element assemblies has a control valve 7 at both the oil inlet and outlet ends. All three assemblies are connected in parallel via a backup pipe 8, which is equipped with a control valve 7. By controlling the opening and closing of the control valve 7, the control valves 7 before and after the filter element assembly requiring replacement close, while the corresponding control valve 7 on the backup pipe 8 opens, allowing the oil to bypass the filter element. Filter element replacement can be performed online without stopping the machine, improving the filtration efficiency of the filtration equipment and ensuring industrial production efficiency.

[0040] The final stage filter element assembly 6 is connected to the parallel backup pipeline 8 and is equipped with a final stage filter element backup assembly 61. The oil inlet and oil outlet of the final stage filter element backup assembly 61 are equipped with control valves 7. The setting of the final stage filter element backup assembly 61 realizes the replacement operation of the final stage filter element, ensures that all oil passes through the final stage filter element for filtration, ensures the oil filtration accuracy, and improves the filtration efficiency of the filtration equipment.

[0041] A primary filter element spare assembly 41 is provided on the parallel spare pipeline 8 of the primary filter element assembly 4. Both the oil inlet and oil outlet of the primary filter element spare assembly 41 are equipped with control valves 7. The setting of the primary filter element spare assembly 41 realizes the replacement operation of the primary filter element, ensures that all oil passes through the primary filter element for filtration, reduces the burden on the subsequent filter elements, protects the subsequent filter elements, and improves the service life of the filter elements of the filtration equipment.

[0042] Each of the primary filter element assembly 4, the primary filter element spare assembly 41, the intermediate filter element assembly 5, the final filter element assembly 6, and the final filter element spare assembly 61 is equipped with a pressure testing component 9. The pressure testing component 9 includes a pressure gauge, which can test the pressure of each filter element assembly. When the pressure is abnormal, it can be determined that the filter element has reached the end of its life and the filter element can be replaced in time, thus ensuring the filtration efficiency of the filtration equipment.

[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 oil multi-stage filtering device with replaceable filter cartridge online, comprising an oil inlet (1) and an oil outlet (2), a primary filter cartridge assembly (4), a multi-stage intermediate filter cartridge assembly (5) and a final filter cartridge assembly (6) are connected in series between the oil inlet (1) and the oil outlet (2) through a communication pipeline (3), the filtering precision of the primary filter cartridge assembly (4), the intermediate filter cartridge assembly (5) and the final filter cartridge assembly (6) decreases in turn, characterized in that: The primary filter element assembly (4), the middle filter element assembly (5) and the last filter element assembly (6) are provided with control valves (7) at the oil inlet end and the oil outlet end, the primary filter element assembly (4), the middle filter element assembly (5) and the last filter element assembly (6) are provided with standby pipelines (8) in parallel, and the standby pipelines (8) are provided with control valves (7).

2. The oil multi-stage filtering equipment with replaceable filter core online according to claim 1, characterized in that: The last filter element assembly (6) is provided with a last filter element standby assembly (61) on the parallel standby pipeline (8), and the last filter element standby assembly (61) is provided with the control valve (7) at the oil inlet end and the oil outlet end.

3. The oil multi-stage filtering device with replaceable filter cartridge online according to claim 2, characterized in that: The primary filter element assembly (4) is provided with a primary filter element standby assembly (41) on the parallel standby pipeline (8), and the primary filter element standby assembly (41) is provided with the control valve (7) at the oil inlet end and the oil outlet end.

4. The oil multi-stage filtering device with replaceable filter cartridge online according to claim 3, characterized in that: The primary filter element assembly (4), the primary filter element standby assembly (41), the middle filter element assembly (5), the last filter element assembly (6) and the last filter element standby assembly (61) are all provided with pressure measuring assemblies (9).

5. The oil multi-stage filtering device with replaceable filter cartridge online according to claim 4, characterized in that: The pressure measuring assembly (9) comprises a pressure gauge.

6. The oil multi-stage filtering device with replaceable filter cartridge online according to claim 1, characterized in that: The oil inlet (1) is provided with an oil inlet pump assembly (10).

7. The oil multi-stage filtering device with replaceable filter cartridge online according to claim 6, characterized in that: The oil inlet pump assembly (10) is provided with an oil inlet valve (11) at the rear end.

Images