A high-maintainability filter with state monitoring and pressure relief function

Abstract

The utility model belongs to oil liquid filtration technical field, concretely relates to a high maintainability filter with state monitoring and pressure relief function. Including mechanical indicator, sealing washer A, upper casing, mechanical indicating rod, valve rod, bypass valve assembly, sealing washer B, sealing washer C, import pipe joint, electric alarm device, sealing washer D, export pipe joint, sealing washer E, baffle, lower casing, filter element, connecting seat, spring, handle, drainage tube. Push handle upwards by hand to overcome spring spring force and make the dirt intercepted by filter element in lower casing of filter device flow out from connecting seat and drainage tube. No need to discharge system oil and disassemble casing during maintenance, remove the sediment dirt in casing through the cleaning of sedimentation device, improve the maintainability of filter.

Description

Technical Field

[0001] This utility model belongs to the field of oil filtration technology, specifically relating to a highly maintainable filter with status monitoring and pressure relief functions. Background Technology

[0002] After a certain period of use, as the filter element intercepts more contaminants, the pressure difference across the filter element increases, and the filter flow rate decreases. To avoid potential system malfunctions caused by the reduced flow rate of the oil filter leading to increased downstream pressure, it is important to promptly notify personnel to maintain the filter element and improve the efficiency of maintenance. Utility Model Content

[0003] The purpose of this invention is to add a pressure warning device to the oil filter, ensuring that an electrical alarm signal is issued when the pressure difference across the filter element reaches a certain value, indicating a decrease in the oil filter's flow rate and prompting timely maintenance of the filter element. Simultaneously, a bypass valve is added for pressure relief, preventing potential downstream pressure increases due to filter element blockage. Furthermore, a sediment removal device is added, ensuring that after a certain period of use, the oil filter does not require draining the system oil or disassembling the housing; the sediment removal device cleans and removes deposits from the inside of the housing, improving the filter's maintainability.

[0004] Technical solution A highly maintainable filter with status monitoring and pressure relief functions includes a mechanical indicator, a sealing ring A, an upper housing, a mechanical indicator rod, a valve rod, a bypass valve assembly, a sealing ring B, a sealing ring C, an inlet pipe connector, an electrical alarm device, a sealing ring D; an outlet pipe connector, a sealing ring E, a retaining ring, a lower housing, a filter element, a connecting seat, a spring, a handle, and a drain pipe. The mechanical indicator is fixed to the upper housing by threads and sealed by sealing ring A. One end of the mechanical indicator rod is fixed inside the mechanical indicator, and the other end is in contact with one end of the valve rod. The other end of the valve rod is fixed in the high-pressure sensing chamber at one end of the bypass valve assembly. The other end of the bypass valve assembly is connected to the upper housing by threads and sealed by sealing ring B. The inlet pipe joint is connected to the upper housing by threads and sealed by sealing ring C. The electrical alarm device is connected to the upper housing by threads. The outlet pipe joint is connected to the upper housing by threads and sealed by sealing ring D. The retaining ring is connected to the upper housing by threads and fixes the lower housing. The retaining ring is sealed by sealing ring E. The connecting seat is connected to the lower housing by threads. The spring, handle, and drainage tube are all installed and fixed in the connecting seat in sequence. The filter element is disposed between the connecting seat and the upper housing.

[0005] Furthermore, the materials for sealing rings A, B, C, D, and E are nitrile rubber 5080; Furthermore, the sealing rings D and E are made of nitrile rubber 5080; Furthermore, the spring material is stainless steel wire 3J1; Furthermore, the filter element's filter material is MXW10; Furthermore, the liner material of the filter element is stainless steel mesh 0Cr18Ni9; Technical effect A pressure warning device is added to the oil filter to ensure that an electrical alarm signal is issued when the pressure difference across the filter element reaches a certain value, indicating a decrease in the oil filter's flow rate and prompting timely maintenance of the filter element. A safety valve is also added for pressure relief to prevent potential downstream pressure increases due to filter element blockage. A sediment flushing device is added to ensure that after a certain period of use, the oil filter can be cleaned and its internal components removed without draining the system oil or disassembling the housing, improving filter maintainability. Attached Figure Description

[0006] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model 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.

[0007] Figure 1 This is a cross-sectional view of the present invention; Figure 2 for Figure 1 AA view; The components include: mechanical indicator 1, sealing ring A2, upper housing 3, mechanical indicator rod 4, valve rod 5, bypass valve assembly 6, sealing ring B7, sealing ring C8, inlet pipe connector 9, electrical alarm device 10, sealing ring D11; outlet pipe connector 12, sealing ring E13, retaining ring 14, lower housing 15, filter element 16, connecting seat 17, spring 18, handle 19, and drainage pipe 20. Detailed Implementation

[0008] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be described in more detail below with reference to the embodiments of this utility model. In the examples, the same or similar reference numerals denote the same or similar components or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments described below with reference to the embodiments are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will be described in detail below with reference to their specific implementation.

[0009] Example A highly maintainable filter with status monitoring and pressure relief functions includes a mechanical indicator 1, a sealing ring A2, an upper housing 3, a mechanical indicator rod 4, a valve rod 5, a bypass valve assembly 6, a sealing ring B7, a sealing ring C8, an inlet pipe connector 9, an electrical alarm device 10, and a sealing ring D11; an outlet pipe connector 12, a sealing ring E13, a retaining ring 14, a lower housing 15, a filter element 16, a connecting seat 17, a spring 18, a handle 19, and a drain pipe 20.

[0010] The mechanical indicator 1 is fixed to the upper housing 3 by threads and sealed by sealing ring A2. One end of the mechanical indicator rod 4 is fixed inside the mechanical indicator 1, and the other end is in contact with one end of the valve rod 5. The other end of the valve rod 5 is fixed in the high-pressure sensing chamber at one end of the bypass valve assembly 6. The other end of the bypass valve assembly 6 is connected to the upper housing 3 by threads and sealed by sealing ring B7. The inlet pipe joint 9 is connected to the upper housing 3 by threads and sealed by sealing ring C8. The electrical alarm device 10 is connected to the upper housing 3 by threads. The outlet pipe joint 12 is connected to the upper housing 3 by threads and sealed by sealing ring D11. The retaining ring 14 is connected to the upper housing 3 by threads and fixes the lower housing 15. The retaining ring 14 is sealed by sealing ring E13. The connecting seat 17 is connected to the lower housing 15 by threads. The spring 18, handle 19, and drainage tube 20 are all installed and fixed in the connecting seat 17 in sequence. The filter element 16 is disposed between the connecting seat 17 and the upper housing 3.

[0011] Furthermore, the oil enters the upper housing 3 through the inlet pipe joint 9, and then flows into the inner cavity of the lower housing 15. After being filtered by the filter element 16, it flows out from the upper housing 3 through the outlet pipe joint 12. When the pressure difference across the filter element 16 reaches a certain value, the electrical alarm device 10 issues an electrical warning. If the filter element 16 is not maintained in time, the pressure difference across the filter element 16 will continue to increase. After increasing to a certain value, the bypass valve senses the pressure difference across the filter element and pushes the valve rod 5 to move to the left in the figure. At the same time, the valve rod 5 pushes the mechanical indicator rod 4 to move to the left in the figure and extends to issue a mechanical warning. At the same time, the bypass valve assembly 6 opens, and the system oil flows out directly from the upper housing 3 and the outlet pipe joint 12 without being filtered by the filter element 16.

[0012] In one embodiment, the sealing rings A2, B7, C8, D11, and E13 are made of nitrile rubber 5080. In one embodiment, the spring 18 is made of stainless steel wire 3J1; In one embodiment, the filter element 16 has an MXW10 filter screen material and a stainless steel mesh 0Cr18Ni9 (flat) liner material. In one embodiment, the electrical alarm signal transmission path and function are as follows: the movement of the magnet in the electrical alarm device activates the switch in the reed switch assembly to send an electrical alarm signal. The electrical alarm signal is transmitted to the flight control system through the plug and wires to remind relevant personnel that the filter element 16 needs maintenance.

[0013] Push the handle upwards by hand to overcome the spring force, allowing the dirt trapped by the filter element inside the lower housing of the filter to flow out through the connecting seat and drain pipe. Maintenance does not require draining system oil or disassembling the housing; the sediment inside the housing is cleaned using the sediment removal device, improving the filter's maintainability.

[0014] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0015] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection 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 an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0016] The above description is merely a specific embodiment of this utility model and is not intended to limit this utility model. Within the spirit and principles of this utility model, any person skilled in the art may use the above-disclosed technical content to make changes or modifications to equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model, as well as any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A highly maintainable filter with status monitoring and pressure relief functions, characterized in that, The system includes a mechanical indicator, sealing ring A, an upper housing, a mechanical indicator rod, a valve rod, a bypass valve assembly, sealing ring B, sealing ring C, an inlet pipe connector, an electrical alarm device, and sealing ring D; an outlet pipe connector, sealing ring E, a retaining ring, a lower housing, a filter element, a connecting seat, a spring, a handle, and a drain pipe. The mechanical indicator is threaded onto the upper housing and sealed with sealing ring A. One end of the mechanical indicator rod is fixed inside the mechanical indicator, and the other end is in contact with one end of the valve rod. The other end of the valve rod is fixed inside the high-pressure sensing chamber at one end of the bypass valve assembly. The other end of the valve assembly is connected to the upper housing via a thread and sealed by a sealing ring B. The inlet pipe connector is connected to the upper housing via a thread and sealed by a sealing ring C. The electrical alarm device is connected to the upper housing via a thread. The outlet pipe connector is connected to the upper housing via a thread and sealed by a sealing ring D. The retaining ring is connected to the upper housing via a thread and fixes the lower housing. The retaining ring is sealed by a sealing ring E. The connecting seat is connected to the lower housing via a thread. The spring, handle, and drain pipe are all installed and fixed in the connecting seat in sequence. The filter element is disposed between the connecting seat and the upper housing.

2. The filter as claimed in claim 1, characterized in that, The materials for sealing rings A, B, C, D, and E are nitrile rubber 5080.

3. The filter as described in claim 1, characterized in that, The sealing rings D and E are made of nitrile rubber 5080.

4. The filter as claimed in claim 1, characterized in that, The spring material is stainless steel wire 3J1.

5. The filter as claimed in claim 1, characterized in that, The filter element uses MXW10 as its filter material.

6. The filter as claimed in claim 1, characterized in that, The filter element's liner material is 0Cr18Ni9 stainless steel mesh.

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