Oil filter for refrigeration compressor
By designing an oil filter for refrigeration compressors, using pressure sensors to determine whether the filter needs maintenance, the problem of inaccurate judgment of the internal quality of the compressor in the prior art is solved, and accurate indications for the maintenance of the compressor are achieved.
Patent Information
- Application Number
- CN202421867276.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The prior art is difficult to judge the amount of internal impurities based on the actual working conditions of the compressor, resulting in the inability to accurately determine whether maintenance is required.
An oil filter for refrigeration compressor is designed, including a filter housing, a sealing cover, an oil inlet, an oil outlet, a filter element, a first pressure sensor top block and a second pressure sensor top block. Whether the filter needs maintenance is determined by the pressure difference between the two sensors.
By judging that when the oil pressure is reduced, there are many metal impurities inside the filter element, providing accurate indicators for compressor maintenance and ensuring effective maintenance of the compressor.
Smart Images
Figure CN222881433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of filters, in particular to an oil filter for a refrigeration compressor. Background Art
[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas, and is the heart of the refrigeration system. It sucks low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it by driving the piston through the motor, and discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. The compressor has built-in oil. During the operation of the compressor, metal impurities generated by internal wear will enter the oil, requiring regular maintenance by staff. In this way, maintenance cannot be performed according to the actual working conditions of the compressor, and the amount of internal impurities cannot be judged, and thus it is impossible to judge whether maintenance is needed. Utility Model Content
[0003] The purpose of the present application is to provide an oil filter for a refrigeration compressor to solve the problems raised in the above background technology. To achieve the above purpose, the present application provides the following technical solutions: an oil filter for a refrigeration compressor, comprising a filter housing, a sealing cover, an oil inlet, an oil outlet, a filter element, a first pressure sensor top block and a second pressure sensor top block, a filter element is placed inside the filter housing, a sealing cover is installed at the top of the filter housing, an oil inlet is fixedly installed on one side of the sealing cover, an oil outlet is fixedly installed on the other side of the sealing cover, an annular cavity is enclosed between the outer wall of the filter element and the inner wall of the filter housing, the oil inlet is connected to the annular cavity, the oil outlet is connected to the inner cavity of the filter element, the first pressure sensor top block is slidably connected to the oil inlet, and the second pressure sensor top block is slidably connected to the oil outlet.
[0004] Preferably, the sealing cover and the filter housing are detachably connected by threads.
[0005] Preferably, a sealing ring for sealing is provided at the connection between the sealing cover and the filter housing.
[0006] Preferably, a spring is fixedly mounted on the bottom end of the filter element.
[0007] In summary, the technical effects and advantages of the utility model are:
[0008] In the utility model, the first pressure sensor and the second pressure sensor are respectively installed on the outside of the first pressure sensor top block and the second pressure sensor top block, and the first pressure sensor top block and the second pressure sensor top block respectively apply pressure to the first pressure sensor and the second pressure sensor, and the pressure difference between the two sensors is used to judge whether the filter needs maintenance. When the oil outlet pressure is significantly reduced, there are more metal impurities inside the filter element and maintenance is required, thereby providing accurate indicators for the maintenance of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0010] Figure 1 This is a schematic diagram of the structure of an oil filter for a refrigeration compressor in an embodiment of the present application;
[0011] Figure 2 This is a schematic diagram of the explosion structure of the oil filter for the refrigeration compressor in the embodiment of the present application.
[0012] In the figure: 1. filter housing; 2. sealing cover; 3. oil inlet; 4. oil outlet; 5. filter element; 6. first pressure sensor; 7. second pressure sensor; 8. sealing ring. DETAILED DESCRIPTION
[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0014] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0015] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. 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 it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.
[0016] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0017] Example: Reference Figure 1-2 The oil filter for the refrigeration compressor shown in the figure comprises a filter housing 1, a sealing cover 2, an oil inlet 3, an oil outlet 4, a filter element 5, a first pressure sensor top block 6 and a second pressure sensor top block 7. The filter element 5 is placed inside the filter housing 1, and the sealing cover 2 is installed on the top of the filter housing 1. The oil inlet 3 is fixedly installed on one side of the sealing cover 2, and the oil outlet 4 is fixedly installed on the other side of the sealing cover 2. An annular cavity is enclosed between the outer wall of the filter element 5 and the inner wall of the filter housing 1. The oil inlet 3 is communicated with the annular cavity, and the oil outlet 4 is communicated with the inner cavity of the filter element 5. The first pressure sensor top block 6 is slidably connected to the oil inlet 3, and the second pressure sensor top block 7 is slidably connected to the oil outlet 4. Oil flows from The oil inlet enters the annular cavity, then enters the inner cavity of the filter element after being filtered by the filter element, and then the oil is discharged from the oil outlet. The first pressure sensor and the second pressure sensor are respectively installed on the outside of the first pressure sensor top block and the second pressure sensor top block. The first pressure sensor top block and the second pressure sensor top block respectively apply pressure to the first pressure sensor and the second pressure sensor. The pressure difference between the two sensors is used to judge whether the filter needs maintenance. When the oil outlet pressure is significantly reduced, there are more metal impurities inside the filter element and maintenance is required, providing accurate indicators for the maintenance of the compressor. In the present invention, the oil in the oil filter can seal the compressor and take away heat to ensure the cleanliness of the oil circuit. The oil inlet and the oil outlet can be threadedly connected to several joints of different specifications for easy replacement.
[0018] By means of the above structure, the sealing cover 2 and the filter housing 1 are detachably connected by threads, which makes disassembly and maintenance easy.
[0019] By means of the above structure: a sealing ring 8 for sealing is provided at the connection between the sealing cover 2 and the filter housing 1 .
[0020] By means of the above structure: a spring is fixedly installed at the bottom end of the filter element 5, so that when the sealing cover is locked, the spring is compressed, the filter element can be pressed to prevent loosening, and the outer walls of the upper and lower ends of the filter element are sealed with the filter housing 1 and the sealing cover 2 through sealing rings.
[0021] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. Oil filter for refrigeration compressor, characterized by: The invention comprises a filter housing (1), a sealing cover (2), an oil inlet (3), an oil outlet (4), a filter core (5), a first pressure sensor top block (6) and a second pressure sensor top block (7); the filter core (5) is placed inside the filter housing (1); the sealing cover (2) is installed at the top of the filter housing (1); the oil inlet (3) is fixedly installed on one side of the sealing cover (2); the oil outlet (4) is fixedly installed on the other side of the sealing cover (2); an annular cavity is enclosed between the outer wall of the filter core (5) and the inner wall of the filter housing (1); the oil inlet (3) and the annular cavity are communicated; the oil outlet (4) and the inner cavity of the filter core (5) are communicated; the first pressure sensor top block (6) is slidably connected to the oil inlet (3); and the second pressure sensor top block (7) is slidably connected to the oil outlet (4).
2. The oil filter for a refrigeration compressor according to claim 1, characterized in that: The sealing cover (2) and the filter housing (1) are detachably connected via threads.
3. The oil filter for refrigeration compressor according to claim 1, characterized in that: A sealing ring (8) for sealing is provided at the connection between the sealing cover (2) and the filter housing (1).
4. The oil filter for a refrigeration compressor according to claim 1, characterized in that: A spring is fixedly mounted on the bottom end of the filter core (5).