Filtering assembly for oil separator

Abstract

The filtering assembly comprises a double-layer filtering cover, a first through hole is formed in the bottom of the double-layer filtering cover, a connecting ring is connected to the top of the double-layer filtering cover in a threaded mode, a filtering net is fixedly connected to the bottom of the connecting ring, and a second through hole is formed in the bottom of the double-layer filtering cover. A third through hole is formed in the position, corresponding to the first through hole, of the bottom of the filter screen, separation filler is embedded in the connecting ring, a fourth through hole is fixedly connected to the position, corresponding to the third through hole, of the interior of the separation filler, and a filter cover head is in threaded connection with the top of the connecting ring. A filter plate is embedded in the filter cover head, a fifth through hole is formed in the filter plate, and a mounting ring is arranged at each of the top and the bottom of the filter cover head. Compared with an existing filter assembly, solid impurities generated in a refrigerating system can be effectively filtered through the design, blockage is avoided, and the filter assembly is convenient to use. The sealing performance between the feeding pipe and the filtering assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil separator filtering, in particular to a filtering component used for an oil separator. Background Art

[0002] The oil separator is used to separate the lubricating oil in the high-pressure steam discharged from the refrigeration compressor to ensure the safe and efficient operation of the device. According to the oil separation principle of reducing the air flow speed and changing the air flow direction, the oil particles in the high-pressure steam can be separated under the action of gravity.

[0003] However, during the circulation of the refrigerant, solid impurities may be generated inside the refrigeration system. Traditional oil separators have a low ability to intercept solid impurities. As the impurities circulate with the refrigerant, they may cause subsequent components such as the condenser and evaporator to become blocked, thereby affecting the normal operation of the refrigeration system.

[0004] Therefore, it is particularly important to design a filter assembly for an oil separator to solve the above-mentioned defects. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model designs a filter assembly for an oil separator, which aims to solve the technical problem that the oil separator in the prior art has a low interception ability for solid impurities, and the impurities may cause blockage of components such as the condenser and evaporator during the circulation of the refrigerant.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A filter assembly for an oil separator, comprising a double-layer filter cover, wherein a through hole 1 is provided at the bottom of the double-layer filter cover, a connecting ring is threadedly connected to the top of the double-layer filter cover, a filter screen is fixedly connected to the bottom of the connecting ring, a through hole 3 is provided at the bottom of the filter screen and at a position corresponding to the through hole 1, a separation filler is embedded in the interior of the connecting ring, a through hole 4 is fixedly connected to the interior of the separation filler and at a position corresponding to the through hole 3, a filter cover is threadedly connected to the top of the connecting ring, a filter plate is embedded in the interior of the filter cover, a through hole 5 is provided in the interior of the filter plate, and a mounting ring is provided at the top and bottom of the filter cover.

[0008] As a preferred solution of the utility model, the double-layer filter cover is designed as an inverted truncated cone structure as a whole, a plurality of strip-shaped filter holes are opened on the outer side of the double-layer filter cover, a thread 1 is opened on the outer side of the top of the double-layer filter cover, the double-layer filter cover is threadedly connected to the connecting ring through the thread 1, and a sealing ring 1 is fixedly connected to the inside of the through hole 1.

[0009] As a preferred solution of the utility model, an inner filter cover is embedded in the double-layer filter cover, a plurality of filter holes are provided on the outer side of the inner filter cover, the bottom side of the inner filter cover is fixedly connected to the inside of the double-layer filter cover, and a through hole 2 is provided at the bottom of the inner filter cover and at a position corresponding to the through hole 1.

[0010] As a preferred solution of the utility model, the filter screen is designed as an inverted truncated cone structure as a whole, and a second thread is provided on the outer side of the top of the connecting ring, and the connecting ring is threadedly connected to the filter cover head through the second thread.

[0011] As a preferred solution of the utility model, the separation filler is designed as an inverted cone structure as a whole.

[0012] As a preferred solution of the utility model, a plurality of filter holes are opened inside the filter plate, and a sealing ring 2 is embedded inside the through hole 5.

[0013] As a preferred solution of the utility model, the top and bottom of the filter cover are provided with annular embedded grooves, the mounting ring and the corresponding positions of the annular embedded grooves are fixedly connected with annular plug-in strips, and the interior of the mounting ring is provided with a threaded mounting hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] First, the double-layer filter cover and filter cap filter out solid impurities generated inside the refrigeration system to prevent other components in the refrigeration system from being blocked. The strip filter holes on the outside of the double-layer filter cover, the inner filter cover, the filter net and the filter plate are used to perform multi-layer filtration of the material, thereby improving the filtration efficiency of the filter component.

[0016] Secondly, the sealing ring fits against the outside of the feed pipe, which improves installation tightness and prevents materials below the filter assembly from entering the interior of the filter assembly through the joint gap between the through hole and the feed pipe, thereby affecting the filtering effect.

[0017] Finally, the double-layer filter cover, connecting ring and filter cover head can all be disassembled to facilitate the cleaning of solid impurities remaining inside during filtration and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the filter assembly;

[0020] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the filter component;

[0021] Figure 3It is a schematic diagram of the overall three-dimensional structure of the mounting ring;

[0022] Figure 4 It is a schematic diagram of the overall three-dimensional structure of the filter cover;

[0023] Figure 5 It is a schematic diagram of the overall three-dimensional structure of the double-layer filter cover and the connecting ring;

[0024] Figure 6 It is a schematic diagram of the overall three-dimensional structure of the separation filler;

[0025] Figure 7 It is a schematic diagram of the internal structure of the filter component.

[0026] In the figure: 1. Double-layer filter cover; 101. Strip filter hole; 102. Sealing ring one; 103. Inner filter cover; 1031. Through hole two; 2. Connecting ring; 201. Filter net; 2011. Through hole three; 3. Separation filler; 301. Through hole four; 4. Filter cover; 401. Filter plate; 402. Sealing ring two; 403. Annular embedded groove; 5. Mounting ring; 501. Annular plug-in strip; 502. Threaded mounting hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] Example:

[0029] The utility model provides a filter assembly for an oil separator, which aims to solve the technical problem that the oil separator has a low interception capacity for solid impurities in the prior art, and the impurities may cause the condenser and evaporator to be blocked during the circulation of the refrigerant.

[0030] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0031] First, see Figure 1 , Figure 2 , Figure 5 and Figure 7A filter assembly for an oil separator comprises a double-layer filter cover 1. The double-layer filter cover 1 is designed in an inverted truncated cone shape as a whole. A plurality of strip filter holes 101 are provided on the outer side of the double-layer filter cover 1. The double-layer filter cover 1 uses the outer strip filter holes 101 to perform preliminary filtering on materials. A thread 1 is provided on the outer side of the top of the double-layer filter cover 1. The double-layer filter cover 1 is threadedly connected to a connecting ring 2 through the thread 1, which is convenient for disassembling the double-layer filter cover 1 in the later stage and cleaning the solid impurities remaining during filtration to avoid affecting the filtering effect. A through hole 1 is provided at the bottom of the double-layer filter cover 1. A sealing ring 102 is fixedly connected to the inside of the through hole 1. The sealing ring 102 fits the outer side of the feed pipe to improve the tightness of the installation.

[0032] Among them, see Figure 1 , Figure 2 , Figure 5 and Figure 7 An inner filter cover 103 is embedded in the double-layer filter cover 1, and a plurality of filter holes are provided on the outer side of the inner filter cover 103. The double-layer filter cover 1 uses the filter holes on the outer side of the inner filter cover 103 to perform secondary filtration on the material. The bottom side of the inner filter cover 103 is fixedly connected to the interior of the double-layer filter cover 1, and a through hole 2 1031 is provided at the bottom of the inner filter cover 103 and at a position corresponding to the through hole 1.

[0033] For further information, see Figure 1 , Figure 2 , Figure 5 and Figure 7 The top of the double-layer filter cover 1 is threadedly connected with a connecting ring 2, and a second thread is provided on the outer side of the top of the connecting ring 2. The connecting ring 2 is threadedly connected to the filter cover head 4 through the second thread, which is convenient for disassembling the connecting ring 2 in the later stage to clean the filter screen 201 and improve the filtering efficiency. The bottom of the connecting ring 2 is fixedly connected with a filter screen 201, and the filter screen 201 filters the material three times. The filter screen 201 is designed in an inverted truncated cone shape as a whole, and a through hole three 2011 is provided at the bottom of the filter screen 201 and at a position corresponding to the through hole one.

[0034] For further information, see Figure 2 , Figure 6 and Figure 7 A separation filler 3 is embedded in the interior of the connecting ring 2. The separation filler 3 can adsorb the oil mist inside the refrigerant to separate the lubricating oil from the gaseous refrigerant. The separation filler 3 is designed in an inverted cone shape as a whole. A through hole four 301 is fixedly connected to the interior of the separation filler 3 and at a position corresponding to the through hole three 2011.

[0035] See also Figure 1 , Figure 4 and Figure 7The top of the connecting ring 2 is threadedly connected to a filter cap 4, a filter plate 401 is embedded inside the filter cap 4, a plurality of filter holes are provided inside the filter plate 401, and the filter cap 4 uses the filter holes inside the filter plate 401 to filter the material four times, a through hole five is provided inside the filter plate 401, a sealing ring 2 402 is embedded inside the through hole five, and the sealing ring 2 402 fits against the outer side of the feed pipe to improve the tightness of the installation of the filter assembly and the feed pipe, and an annular embedded groove 403 is provided on the top and bottom of the filter cap 4.

[0036] For further information, see Figure 1 , Figure 3 and Figure 7 A mounting ring 5 is provided at the top and bottom of the filter cover 4. An annular plug-in strip 501 is fixedly connected to the corresponding position of the mounting ring 5 and the annular embedded groove 403. The mounting ring 5 uses the annular plug-in strip 501 to be embedded into the annular embedded groove 403 to clamp and fix the filter cover 4. A threaded mounting hole 502 is opened inside the mounting ring 5. The mounting ring 5 is used to install the filter assembly inside the oil separator through the threaded mounting hole 502.

[0037] In addition, it should be supplemented according to the above embodiments that the separation filler 3 is a prior art, and its internal working principle and operation process will not be described in detail here.

[0038] The working process of the utility model is as follows: first, the installation ring 5 uses the annular plug-in strip 501 to be embedded into the annular embedded groove 403 to clamp and fix the filter cover head 4, and the separation filler 3 is installed into the interior of the filter screen 201. The connecting ring 2 is threadedly connected to the filter cover head 4 through the thread 2, and the double-layer filter cover 1 is threadedly connected to the connecting ring 2 through the thread 1 to complete the assembly of the filter component. The feed pipe passes through the through hole 5 and the through hole 1, and the sealing ring 1 102 and the sealing ring 2 402 are fitted with the outside of the feed pipe to improve the tightness of the installation of the filter component and the feed pipe. The installation ring 5 is installed in the interior of the oil separator through the threaded installation hole 502. When working, the material will first contact the double-layer filter cover 1, and the double-layer filter cover 1 uses the outer strip filter hole 101 to filter the material After preliminary filtration, the double-layer filter cover 1 utilizes the filter holes on the outside of the inner filter cover 103 to perform secondary filtration on the material, the filter screen 201 performs tertiary filtration on the material, the separation filler 3 can adsorb the oil mist inside the refrigerant to separate the lubricating oil from the gaseous refrigerant, and the filter cover 4 utilizes the filter holes inside the filter plate 401 to perform fourth filtration on the material. Multi-layer filtration can effectively improve the filtration efficiency of the filter assembly and avoid clogging of components such as the condenser and evaporator during the circulation of the refrigerant. The entire operation process is simple and convenient. Compared with the existing filter assembly, the utility model can effectively filter the solid impurities generated inside the refrigeration system through design to avoid clogging and improve the sealing between the feed pipe and the filter assembly.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter assembly for an oil separator, comprising a double-layer filter housing (1), characterized in that: The bottom of the double-layer filter cover (1) is provided with a through hole one, the top of the double-layer filter cover (1) is threadedly connected with a connecting ring (2), the bottom of the connecting ring (2) is fixedly connected with a filter screen (201), the bottom of the filter screen (201) and a position corresponding to the through hole one is provided with a through hole three (2011), the interior of the connecting ring (2) is embedded with a separation filler (3), the interior of the separation filler (3) and a position corresponding to the through hole three (2011) is fixedly connected with a through hole four (301), the top of the connecting ring (2) is threadedly connected with a filter cover (4), the interior of the filter cover (4) is embedded with a filter plate (401), the interior of the filter plate (401) is provided with a through hole five, and the top and bottom of the filter cover (4) are both provided with a mounting ring (5).

2. A filter assembly for an oil separator according to claim 1, characterized in that: The double-layer filter cover (1) is designed as an inverted truncated cone structure as a whole. A plurality of strip-shaped filter holes (101) are provided on the outer side of the double-layer filter cover (1). A thread 1 is provided on the outer side of the top of the double-layer filter cover (1). The double-layer filter cover (1) is threadedly connected to the connecting ring (2) via the thread 1. A sealing ring 1 (102) is fixedly connected to the inside of the through hole 1.

3. The filter assembly for an oil separator according to claim 1, characterized in that: An inner filter cover (103) is embedded in the double-layer filter cover (1), a plurality of filter holes are provided on the outer side of the inner filter cover (103), the bottom side of the inner filter cover (103) is fixedly connected to the inside of the double-layer filter cover (1), and a second through hole (1031) is provided at the bottom of the inner filter cover (103) and at a position corresponding to the first through hole.

4. The filter assembly for an oil separator according to claim 1, characterized in that: The filter screen (201) is designed as an inverted truncated cone structure as a whole, and a second thread is provided on the outer side of the top of the connecting ring (2), and the connecting ring (2) is threadedly connected to the filter cover head (4) via the second thread.

5. The filter assembly for an oil separator according to claim 1, characterized in that: The separation filler (3) is designed as an inverted cone structure as a whole.

6. The filter assembly for an oil separator according to claim 1, characterized in that: A plurality of filter holes are provided inside the filter plate (401), and a sealing ring 2 (402) is embedded inside the through hole 5.

7. The filter assembly for an oil separator according to claim 1, characterized in that: The top and bottom of the filter cover (4) are both provided with an annular embedded groove (403), the mounting ring (5) is fixedly connected with an annular plug-in strip (501) at a position corresponding to the annular embedded groove (403), and a threaded mounting hole (502) is provided inside the mounting ring (5).

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