A filter assembly and a liquid dispenser

Abstract

This invention discloses a filter assembly and a distributor. The filter assembly includes a filter support and a filter. The filter support is bell-shaped, and the filter is installed on the outer periphery of the filter support. The filter support has several flow holes, which are located below the inlet of the distributor's tubing when the filter assembly is installed inside the distributor. The distributor includes the aforementioned filter assembly. By implementing the filter assembly of this invention, the resistance during compressor suction can be reduced, the impact of refrigerant on the support can be reduced, the risk of liquid refrigerant being carried into the steel pipe can be reduced, and the backflow phenomenon of airflow can be reduced, thereby reducing gas pressure pulsation and vibration, and improving overall efficiency and reliability.

Description

Technical Field

[0001] This invention relates to the field of filter structure technology, and in particular to a filter assembly and a liquid dispenser. Background Technology

[0002] The distributor is a key component in the air conditioning refrigeration system. It is installed after the evaporator and before the compressor and is responsible for performing functions such as filtration, liquid storage, pressure stabilization, and oil return.

[0003] In existing distributor designs, gas is drawn in through a straight pipe and directly sprayed onto the filter assembly. Because the distance between the filter assembly and the straight pipe is short, returning oil is also directly sprayed onto the filter assembly. This design causes the filter pores to be partially blocked instantaneously, reducing the gas flow area and increasing resistance during the intake process. This increased resistance directly leads to higher flow resistance in the distributor, thus affecting the overall system energy consumption, particularly negatively impacting compressor performance.

[0004] Furthermore, after the refrigerant enters the distributor, it exerts a significant impact force on the front of the filter support. This impact not only affects the distribution of refrigerant flowing through the filter support but also impacts the structure of the distributor. Part of the refrigerant enters the distributor through the flow-through orifice, which is located above and close to the steel pipe inlet. Under turbulent airflow conditions, this design causes liquid refrigerant to be carried into the steel pipe, leading to liquid slugging, which can potentially damage the compressor. Another portion of the refrigerant, after impacting the filter support, flows back along the distributor cylinder. This backflow increases gas pressure pulsations and causes vibration in the distributor cylinder. This vibration not only affects system stability but may also adversely impact the long-term operation and reliability of the distributor.

[0005] Therefore, it is necessary to design a new filter assembly to reduce the resistance during the compressor's suction process, reduce the impact of refrigerant on the support, reduce the risk of liquid refrigerant being carried into the steel pipe, reduce the backflow phenomenon of airflow, thereby reducing gas pressure pulsation and vibration, and improving overall efficiency and reliability. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a filter assembly and a liquid dispenser.

[0007] To solve the above-mentioned technical problems, the present invention aims to achieve this through the following technical solution: providing a filter assembly, including a filter support and a filter, wherein the filter support is bell-shaped and the filter is installed on the outer periphery of the filter support; the filter support is provided with a plurality of flow holes, and when the filter assembly is installed in a distributor, the flow holes are located below the inlet of the distributor's tubing.

[0008] A further technical solution is that adjacent flow holes are staggered on the filter support.

[0009] A further technical solution is that the flow hole is located on the lower half of the filter support.

[0010] A further technical solution is that the bottom diameter of the flow hole is larger than the top diameter of the flow hole.

[0011] To solve the above-mentioned technical problems, the present invention also provides a liquid separator, including a tubing, an intermediate cylinder and the above-mentioned filter assembly, wherein the tubing is built into the intermediate cylinder and the filter support is connected above the intermediate cylinder.

[0012] A further technical solution is that the filter support is welded to the top of the intermediate cylinder.

[0013] A further technical solution includes a partition, wherein the pipe fitting is connected to the partition, and the partition is installed inside the intermediate cylinder.

[0014] The further technical solution includes an upper cylinder and a straight pipe. The upper cylinder is connected above the middle cylinder, and the filter assembly is built into the upper cylinder. The straight pipe is connected to the upper cylinder and communicates with the upper cylinder. The upper cylinder is also communicated with the middle cylinder.

[0015] A further technical solution includes a lower cylinder, which is connected below the intermediate cylinder and communicates with the intermediate cylinder.

[0016] A further technical solution includes a bent pipe, which is connected to the lower part of the lower cylinder and communicates with the lower cylinder.

[0017] The beneficial effects of this invention compared with the prior art are as follows: By setting a bell-shaped filter support 11 and a filter installed on its outer periphery, the present invention provides multiple flow holes. These holes are located below the inlet of the pipe fitting when the filter assembly is installed to the distributor, thereby reducing the resistance during the compressor's suction process, reducing the impact of refrigerant on the support, reducing the risk of liquid refrigerant being carried into the steel pipe, and reducing the backflow phenomenon of airflow, thereby reducing gas pressure pulsation and vibration, and improving the overall efficiency and reliability.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A three-dimensional structural diagram of a filter assembly provided in an embodiment of the present invention. Figure 1 ;

[0021] Figure 2 A three-dimensional structural diagram of a filter assembly provided in an embodiment of the present invention. Figure 2 ;

[0022] Figure 3 A three-dimensional structural diagram of a filter assembly provided in an embodiment of the present invention. Figure 3 ;

[0023] Figure 4 A three-dimensional structural diagram of a filter assembly provided in an embodiment of the present invention. Figure 4 ;

[0024] Figure 5 This is a schematic diagram of the main structure of a filter assembly provided in an embodiment of the present invention;

[0025] Figure 6 A bottom view of a filter assembly provided in an embodiment of the present invention;

[0026] Figure 7 A three-dimensional structural diagram of the filter support provided in an embodiment of the present invention. Figure 1 ;

[0027] Figure 8 A three-dimensional structural diagram of the filter support provided in an embodiment of the present invention. Figure 2 ;

[0028] Figure 9 A three-dimensional structural diagram of the filter support provided in an embodiment of the present invention. Figure 3 ;

[0029] Figure 10 A three-dimensional structural diagram of the filter support provided in an embodiment of the present invention. Figure 4 ;

[0030] Figure 11 This is a schematic diagram of the main structure of the filter holder provided in an embodiment of the present invention;

[0031] Figure 12 A bottom view of the filter support provided in an embodiment of the present invention.

[0032] Figure 13 This is a schematic diagram of the front view structure of a liquid dispenser provided in an embodiment of the present invention;

[0033] Explanation of the markings in the image:

[0034] 1. Filter assembly; 2. Upper cylinder; 3. Straight pipe; 4. Fittings; 5. Baffle; 6. Middle cylinder; 7. Lower cylinder; 8. Bend; 11. Filter support; 111. Flow hole; 12. Filter. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0037] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0038] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0039] The existing distributor uses a cap-shaped structure for the filter holder 11 to filter the refrigerant mixture. However, this structure causes a significant impact of the refrigerant on the front of the filter holder 11 during filtration, easily leading to clogging of the sieve holes and reducing the flow area. Although this design is widely used in current products, it increases suction resistance, thereby increasing the overall power consumption of the unit.

[0040] To address this, the present invention improves the shape of the filter support 11 by replacing it with a traditional bell shape, i.e., a shape that is wide at the bottom and gradually narrows at the top. Several flow holes 111 are provided on the filter support 11, forming two rings of flow holes 111. These flow holes 111 are staggered, and the copper bell-shaped structure imitates the shape of an ancient bell. This shape provides good airflow guidance. The large-area refrigerant flow channel with its streamlined copper bell shape reduces refrigerant flow resistance, thereby improving and increasing the flow area and reducing suction resistance. The entire filter assembly 1 can reduce resistance during compressor suction, reduce the impact of refrigerant on the support, reduce the risk of liquid refrigerant being carried into the steel pipe, and reduce airflow backflow, thereby reducing gas pressure pulsation and vibration, and improving overall efficiency and reliability.

[0041] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0042] Please see Figures 1 to 6 A filter assembly 1 includes a filter support 11 and a filter 12. The filter support 11 is bell-shaped and has several flow holes 111. The filter 12 is installed on the outer periphery of the filter support 11. When the filter assembly 1 is installed in a distributor, the flow holes 111 are located below the inlet of the distributor's fitting 4. This prevents liquid refrigerant from entering the compressor through the upper inlet of the distributor's fitting 4, causing liquid slugging.

[0043] Specifically, the filter support 11 is bell-shaped and designed to support and fix the filter 12. The filter 12 is installed on the outer periphery of the filter support 11 and is used to filter impurities in the refrigerant mixture. Several flow holes 111 are provided on the filter support 11. These holes are located at the lower part of the support, that is, near the bottom of the assembly. When the filter assembly 1 is installed in the distributor, these flow holes 111 are located below the inlet of the pipe fitting 4. This can prevent liquid refrigerant from directly entering the compressor through the inlet above the pipe fitting 4, thereby reducing the occurrence of liquid slugging.

[0044] Therefore, the flow-through orifice 111 is located below the inlet of pipe fitting 4, effectively preventing liquid refrigerant from directly entering the compressor and reducing the risk of liquid slugging. This helps protect the compressor and extend its service life. By reducing liquid slugging, the filter assembly 1 can effectively filter and treat the refrigerant before it enters the compressor, thereby ensuring stable system operation and improving overall refrigeration efficiency. The bell-shaped filter support 11 and the position of the flow-through orifice 111 help optimize the way the refrigerant flows through the filter 12, reducing flow resistance and pressure loss, thereby improving system efficiency. Due to the reduction of liquid slugging, the probability of compressor and other system component failures is reduced, which can reduce maintenance and repair costs.

[0045] In summary, the design of this filter assembly 1 not only effectively protects the compressor from liquid slugging, but also improves the efficiency and reliability of the system.

[0046] In one embodiment, please refer to Figures 7 to 12 The aforementioned adjacent flow holes 111 are staggered on the filter screen support 11. Specifically, several flow holes 111 are arranged in two concentric circles on the filter screen support 11, and these two concentric circles of flow holes 111 are staggered, so that the flow holes 111 are not symmetrically arranged on the horizontal plane. The staggered arrangement helps to distribute the fluid evenly and avoids the problem of uneven fluid flow. This layout allows the refrigerant liquid to be more evenly distributed when passing through the filter screen 12, thereby improving the filtration effect and the overall efficiency of the system.

[0047] In one embodiment, please refer to Figures 7 to 12 The aforementioned flow-through hole 111 is located on the lower half of the filter support 11. Positioning the flow-through hole 111 in the lower half facilitates efficient refrigerant flow, ensuring that the refrigerant has undergone preliminary filtration before entering the liquid reservoir of the distributor. This design allows the fluid to be adequately treated before entering other parts of the system.

[0048] In one embodiment, please refer to Figures 7 to 12 The bottom diameter of the aforementioned flow hole 111 is larger than the top diameter of the flow hole 111. In addition, the flow hole 111 adopts a large-diameter staggered design, which allows refrigerant liquid at every angle to enter the liquid storage part of the distributor through the flow hole 111.

[0049] The larger bottom orifice diameter allows more refrigerant liquid to pass through, reducing fluid flow resistance. The smaller upper orifice diameter of the flow-through orifice 111 helps guide the fluid evenly into the lower orifice diameter region; this design ensures that refrigerant liquid can pass smoothly through the flow-through orifice 111 at every angle, thereby effectively distributing the liquid to the liquid storage section of the distributor; the large diameter orifice helps to mitigate the impact force of liquid flow, reduce liquid hammering, and further protect other components of the system.

[0050] The aforementioned filter assembly 1, by setting a bell-shaped filter support 11 and a filter 12 installed on its outer periphery, has multiple flow holes 111 on the filter support 11. These holes are located below the inlet of the pipe fitting 4 when the filter assembly 1 is installed to the distributor, thereby reducing the resistance during the compressor's suction process, reducing the impact of the refrigerant on the support, reducing the risk of liquid refrigerant being carried into the pipe fitting 4, reducing the backflow phenomenon of airflow, thereby reducing gas pressure pulsation and vibration, and improving the overall efficiency and reliability.

[0051] Please see Figure 13The present invention also provides a liquid dispenser, including a tube 4, an intermediate cylinder 6 and the above-mentioned filter assembly 1. The tube 4 is built into the intermediate cylinder 6, and the filter support 11 is connected above the intermediate cylinder 6.

[0052] In this embodiment, the pipe fitting 4 is a steel pipe. In other embodiments, the pipe fitting 4 can be a pipe made of other materials.

[0053] In one embodiment, please refer to Figure 13 The filter support 11 is welded to the top of the intermediate cylinder 6.

[0054] In one embodiment, please refer to Figure 13 A filter assembly 1 also includes a partition 5, a pipe 4 connected to the partition 5, and the partition 5 is installed inside the intermediate cylinder 6.

[0055] In one embodiment, please refer to Figure 13 A filter assembly 1 further includes an upper cylinder 2 and a straight tube 3. The upper cylinder 2 is connected above the middle cylinder 6, and the filter assembly 1 is built into the upper cylinder 2. The straight tube 3 is connected to the upper cylinder 2 and communicates with the upper cylinder 2. The upper cylinder 2 is also communicated with the middle cylinder 6.

[0056] In one embodiment, please refer to Figure 13 A filter assembly 1 also includes a lower cylinder 7, which is connected below the middle cylinder 6 and is in communication with the middle cylinder 6.

[0057] In one embodiment, please refer to Figure 13 A filter assembly 1 also includes a bent tube 8, which is connected to the lower cylinder 7 and communicates with the lower cylinder 7.

[0058] The distributor effectively reduces suction resistance, and the new filter assembly 1 provides excellent flow guidance. This allows the refrigerant liquid to flow quickly through the flow hole 111 to the liquid storage section of the distributor, reducing vibration and noise caused by airflow pulsation.

[0059] Specifically, in this distributor, the pipe fitting 4 is built inside the intermediate cylinder 6 and is responsible for guiding the flow of refrigerant; the intermediate cylinder 6, as the main structural component of the distributor, works together with the pipe fitting 4 to distribute and guide the flow of refrigerant.

[0060] The filter support 11 in the filter assembly 1 is bell-shaped and welded to the top of the intermediate cylinder 6 to support and fix the filter 12; the filter 12 is installed on the outer periphery of the filter support 11 to filter solid impurities in the refrigerant; the baffle 5 is installed inside the intermediate cylinder 6 and connected to the pipe 4; the upper cylinder 2 is connected to the top of the intermediate cylinder 6, and the filter assembly 1 is built into it; the straight pipe 3 is connected to the upper cylinder 2 and communicates with the intermediate cylinder 6 to help the refrigerant flow; the lower cylinder 7 is connected to the bottom of the intermediate cylinder 6 and is responsible for further guiding the refrigerant; the bent pipe 8 is connected to the bottom of the lower cylinder 7 to help the refrigerant flow out and communicate with the lower cylinder 7.

[0061] The filter support 11 is bell-shaped, which helps optimize the refrigerant flow path and reduce flow resistance. The bell shape better guides fluid into the filter 12, avoiding flow resistance caused by right angles and sharp turns. The filter support 11 has multiple flow holes 111, allowing for uniform refrigerant distribution and reducing resistance caused by uneven flow. The number and distribution of the flow holes 111 are optimized to ensure smooth fluid flow through the filter assembly 1. The filter assembly 1 is built into the upper cylinder 2. When the refrigerant flows through the filter assembly 1, it first passes through the filter 12 and then flows out through the upper cylinder 2 and straight pipe 3, ensuring a smooth refrigerant flow path. The baffle 5 is installed in the intermediate cylinder 6 and connected to the pipe 4, contributing to the stability of the refrigerant flow. The baffle 5 guides the refrigerant flow to the filter assembly 1, reducing the direct impact of the refrigerant on the structure, thereby mitigating the impact force on the distributor structure. Through the design of the upper cylinder 2 and lower cylinder 7, the flow direction of the refrigerant can be effectively guided, reducing pressure changes during refrigerant flow. This design helps mitigate the impact of refrigerant flow on the distributor; the filter 12 not only filters solid impurities but also reduces refrigerant flow pulsation and turbulence through the uniform layout of the flow holes 111, thereby reducing vibration and noise; the design of the upper cylinder 2, lower cylinder 7, and bend 8 ensures smooth refrigerant flow, allowing the refrigerant to flow quickly through the flow holes 111 and reducing vibration caused by flow instability; the bend 8 helps smooth the refrigerant flow path, reducing flow resistance and vibration caused by sharp turns. This helps to further reduce system vibration and pressure pulsation.

[0062] The distributor in this embodiment effectively reduces suction resistance and mitigates the impact of refrigerant on the distributor structure by optimizing the filter assembly 1. Through a uniform layout of the flow holes 111, a rationally designed baffle 5, and a cylindrical body, the system reduces flow resistance and pressure pulsation, thereby improving the overall system efficiency and reliability. This design not only improves the stability of refrigerant flow but also reduces system vibration and noise, enhancing the distributor's performance and durability.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A filter assembly, characterized in that, include: The filter support and the filter are bell-shaped, and the filter is installed on the outer periphery of the filter support. The filter support has several flow holes. When the filter assembly is installed in the dispenser, the flow holes are located below the inlet of the dispenser's tubing and on the lower half of the filter support. The bottom diameter of the flow holes is larger than the top diameter of the flow holes. The flow holes are arranged in two rings on the filter support, and the two rings of flow holes are staggered.

2. A liquid dispenser, characterized in that, It includes a pipe fitting, an intermediate cylinder, and the filter assembly as described in claim 1, wherein the pipe fitting is built into the intermediate cylinder and the filter support is connected above the intermediate cylinder.

3. A liquid dispenser according to claim 2, characterized in that, The filter support is welded to the top of the intermediate cylinder.

4. A liquid dispenser according to claim 2, characterized in that, It also includes a partition, the pipe fitting is connected to the partition, and the partition is installed inside the intermediate cylinder.

5. A liquid dispenser according to claim 4, characterized in that, It also includes an upper cylinder and a straight pipe. The upper cylinder is connected above the middle cylinder, and the filter assembly is built into the upper cylinder. The straight pipe is connected to the upper cylinder and communicates with the upper cylinder. The upper cylinder is also communicated with the middle cylinder.

6. A liquid dispenser according to claim 5, characterized in that, It also includes a lower cylinder, which is connected below the middle cylinder and communicates with the middle cylinder.

7. A liquid dispenser according to claim 6, characterized in that, It also includes a bend that is connected to the lower part of the lower cylinder and is in communication with the lower cylinder.

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