Filtering and silencing device and heat pump

Abstract

The invention relates to the technical field of heat pumps, in particular to a filtering and silencing device and a heat pump. The filtering and silencing device comprises a shell and a filtering assembly. Wherein a first containing cavity is formed in the shell, a first flow channel opening and a second flow channel opening are formed in the shell, and the first flow channel opening is communicated with the second flow channel opening through the first containing cavity. The filtering assembly is arranged in the first accommodating chamber; the filter assembly comprises a first filter body, a second filter body and a fiber filter element, the first filter body and the second filter body are connected to form a second containing cavity, and the second containing cavity is filled with the fiber filter element. The first filter body arches towards the first flow channel opening, and the second filter body arches towards the second flow channel opening. According to the filtering and silencing device, the filtering area can be increased, and the filtering effect is improved; high stability and reliability are achieved, and the service life is prolonged; meanwhile, noise can be reduced, and the user experience feeling is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pumps, and in particular to a filtering and silencing device and a heat pump. Background Art

[0002] Heat pump systems are usually equipped with filters to filter the fluid in the pipeline. The filters can effectively absorb and filter out moisture and impurities in the heat pump system to prevent these impurities from damaging the heat pump system, thereby protecting key components such as the compressor, reducing the number of maintenance times, and extending the service life of the equipment.

[0003] The filters in the prior art are all flat, which not only limits the filter area, but also easily causes internal blockage, thus affecting the normal use of the heat pump; at the same time, the flat filter is easily deformed or damaged when impacted by the fluid, and even causes the damaged fragments to enter the equipment with the fluid, affecting the normal operation of the equipment and shortening its service life. In addition, the existing filters are prone to generate loud noise during use, affecting the user experience.

[0004] Therefore, it is urgent to design a filtering and silencing device and a heat pump to solve the above technical problems. Summary of the invention

[0005] The first purpose of the present invention is to provide a filtering and silencing device that can not only increase the filtering area and improve the filtering effect; it also has higher stability and reliability and extends the service life; at the same time it can also reduce the generation of noise and improve the user experience.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides a filtering and silencing device, comprising:

[0008] A shell, wherein a first accommodating chamber is disposed in the shell, and a first flow channel opening and a second flow channel opening are disposed on the shell, wherein the first flow channel opening is communicated with the second flow channel opening through the first accommodating chamber;

[0009] A filter assembly, the filter assembly is arranged in the first accommodating chamber; the filter assembly comprises a first filter body, a second filter body and a fiber filter core, the first filter body and the second filter body are connected to form a second accommodating chamber, and the fiber filter core is filled in the second accommodating chamber;

[0010] The first filter body is arched toward the first flow channel opening, and the second filter body is arched toward the second flow channel opening.

[0011] As an optional technical solution for the filtering and silencing device, a plurality of through holes are provided on the first filter body and the second filter body, and the plurality of through holes are evenly arranged, and the through holes are configured to allow fluid to flow.

[0012] As an optional technical solution for the filtering and silencing device, a first flange edge extends from the first filter body, a second flange edge extends from the second filter body, and the first flange edge is detachably connected to the second flange edge.

[0013] As an optional technical solution for a filtering and silencing device, the fiber filter core is spherical or ellipsoidal, and a plurality of filtering cavities are arranged inside the fiber filter core.

[0014] As an optional technical solution for a filtering and silencing device, the shell includes a first shell and a second shell, a third flange edge extends from the first shell, a fourth flange edge extends from the second shell, and the third flange edge and the fourth flange edge are detachably connected.

[0015] As an optional technical solution of the filtering and muffler device, the first shell includes a first cylindrical portion and a first cone portion, and the second shell includes a second cylindrical portion and a second cone portion;

[0016] One end of the first cylindrical portion is connected to the third flange, and the other end is connected to the first cone portion, and the first flow channel is formed at the bottom of the first cone portion;

[0017] One end of the second cylindrical portion is connected to the fourth flange, and the other end is connected to the second cone portion, and the second flow channel opening is formed at the bottom of the second cone portion.

[0018] As an optional technical solution for a filtering and silencing device, a mounting hole is provided on the first shell and / or the second shell, and the filtering and silencing device also includes an external connecting pipe and a needle valve, one end of the external connecting pipe passes through the mounting hole and is inserted into the fiber filter element, the needle valve is connected to the other end of the external connecting pipe, and the needle valve is placed outside the first shell and / or the second shell.

[0019] As an optional technical solution for a filtering and silencing device, the filtering and silencing device also includes a first flow channel tube and a second flow channel tube, the first flow channel tube is passed through the first flow channel opening and is connected to the first flow channel opening, and the second flow channel tube is passed through the second flow channel opening and is connected to the second flow channel opening.

[0020] As an optional technical solution for a filtering and silencing device, the first flow channel tube and the second flow channel tube have the same structure; the first flow channel tube includes a flat mouth portion, a limiting portion and an oblique mouth portion, one end of the limiting portion is connected to the flat mouth portion, and the other end of the limiting portion is connected to the oblique mouth portion, the oblique mouth portion passes through the first flow channel opening and is placed in the first accommodating chamber, and an inclined end surface is provided on the side of the oblique mouth portion facing away from the limiting portion, and the limiting portion abuts against the outer wall of the first flow channel opening.

[0021] The second object of the present invention is to provide a heat pump which has good performance in filtering fluid and reducing noise; at the same time, has high stability and reliability, extends service life and saves costs.

[0022] To achieve this object, the present invention adopts the following technical solutions:

[0023] The present invention provides a heat pump, which comprises a compressor and the filtering and silencing device described in any of the above optional technical solutions, wherein the compressor has an air intake port and an air exhaust port, and the filtering and silencing device is connected to the air intake port and / or the air exhaust port.

[0024] The beneficial effects of the present invention include at least:

[0025] The present invention provides a filtering and silencing device, which includes a shell and a filtering assembly. A first accommodating chamber is provided in the shell, and a first flow channel opening and a second flow channel opening are provided on the shell, and the first flow channel opening is connected with the second flow channel opening through the first accommodating chamber. The filtering assembly is arranged in the first accommodating chamber; the filtering assembly includes a first filter body, a second filter body and a fiber filter element, the first filter body and the second filter body are connected to form a second accommodating chamber, and the fiber filter element is filled in the second accommodating chamber. The first filter body is arched toward the first flow channel opening, and the second filter body is arched toward the second flow channel opening.

[0026] In the above, the fluid in the present invention can flow into the first accommodating chamber from the first flow channel, then contact and filter the filter assembly, and finally flow out from the second flow channel. Of course, the fluid can also flow into the first accommodating chamber from the second flow channel, contact and filter the filter assembly, and finally flow out from the first flow channel.

[0027] The first filter body and the second filter body in the present invention are connected to form a second accommodating chamber, so that the second accommodating chamber can protect the fiber filter element. The first filter body arches toward the first flow channel opening, and the second filter body arches toward the second flow channel opening. In this way, no matter whether the fluid enters from the first flow channel opening or the second flow channel opening, the arching direction of the first filter body and the second filter body is opposite to the flow direction of the fluid entering the first accommodating chamber. One of the functions of this design is: it can withstand greater impact force when the fluid flows, improve the stability and reliability of the filter assembly, reduce or avoid the risk of loosening or falling of the filter assembly, and extend the service life. The second function is: the arched first filter body and the second filter body can increase their respective filtration areas, increase the probability of capturing particulate matter (impurities), and thus improve the filtration effect. The internal structure of the fiber filter element in the present invention is fibrous, which can effectively absorb the noise and vibration generated by the impact of the fluid on the first filter body and the second filter body; at the same time, it can also reduce the noise and vibration generated by the impurities adhering to the first filter body and the second filter body, reduce noise pollution, and improve the user experience.

[0028] The present invention also provides a heat pump, which has good performance of filtering fluid and reducing noise; at the same time, it has high stability and reliability, prolongs service life and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0030] Figure 1 is an exploded view of a filtering and silencing device provided in an embodiment of the present invention;

[0031] Figure 2 is a cross-sectional view of the filtering and silencing device provided by an embodiment of the present invention Figure 1 ;

[0032] Figure 3 is a front view of the filtering and silencing device provided by an embodiment of the present invention;

[0033] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0034] Figure 5 is a cross-sectional view of the filtering and silencing device provided by an embodiment of the present invention Figure 2 .

[0035] Reference numerals

[0036] 100. Impurities;

[0037] 10. first shell; 11. first flow channel opening; 12. third flange edge; 13. first accommodating chamber; 14. first barrel portion; 15. first cone portion;

[0038] 20. second shell; 21. second flow channel opening; 22. fourth flange edge; 23. second cylinder portion; 24. second cone portion; 25. mounting hole;

[0039] 30. first filter body; 31. first flange edge; 32. through hole;

[0040] 40. second filter body; 41. second flange edge;

[0041] 50. Fiber filter element; 51. Filter cavity;

[0042] 60. External connecting pipe; 70. Needle valve;

[0043] 80, first flow channel tube; 81, flat mouth portion; 82, limiting portion; 83, oblique mouth portion; 831, inclined end surface;

[0044] 90. Second flow channel pipe. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] This embodiment provides a filtering and silencing device, which can not only increase the filtering area and improve the filtering effect; it also has high stability and reliability and extends the service life; it can also reduce the generation of noise and improve the user experience.

[0053] like Figure 1-Figure 2As shown, the filtering and silencing device mainly includes a shell and a filter assembly. Among them, a first accommodating chamber 13 is arranged in the shell, and a first flow channel opening 11 and a second flow channel opening 21 are arranged on the shell, and the first flow channel opening 11 is connected with the second flow channel opening 21 through the first accommodating chamber 13. The filter assembly is arranged in the first accommodating chamber 13; the filter assembly includes a first filter body 30, a second filter body 40 and a fiber filter element 50, the first filter body 30 and the second filter body 40 are connected to form a second accommodating chamber (not shown in the figure), and the fiber filter element 50 is filled in the second accommodating chamber. The first filter body 30 is arched toward the first flow channel opening 11, and the second filter body 40 is arched toward the second flow channel opening 21.

[0054] Based on the above design, in this embodiment, the fluid can flow into the first accommodating chamber 13 from the first flow channel opening 11, then contact and filter the filter assembly, and finally flow out from the second flow channel opening 21. Of course, the fluid can also flow into the first accommodating chamber 13 from the second flow channel opening 21, contact and filter the filter assembly, and finally flow out from the first flow channel opening 11.

[0055] In this embodiment, the first filter body 30 and the second filter body 40 are connected to form a second accommodating chamber, so that the second accommodating chamber can protect the fiber filter element 50. The first filter body 30 is arched toward the first flow channel opening 11, and the second filter body 40 is arched toward the second flow channel opening 21. In this way, no matter whether the fluid enters from the first flow channel opening 11 or the second flow channel opening 21, the arching direction of the first filter body 30 and the second filter body 40 is opposite to the flow direction of the fluid entering the first accommodating chamber 13. One of the functions of such a design is that it can withstand greater impact force when the fluid flows, improve the stability and reliability of the filter assembly, reduce or avoid the risk of loosening or falling of the filter assembly, and extend the service life. The second function is that the arched first filter body 30 and the second filter body 40 can increase their respective filtration areas, increase the probability of capturing particulate matter (impurities 100), and thus improve the filtration effect. The third function is that the first filter body 30 and the second filter body 40, which are arched (opposite to the flow direction of the fluid), can optimize the flow path of the fluid, reduce the resistance of the fluid on the filter plate, improve the flow efficiency of the fluid, and reduce energy consumption. The fourth function is that it can reduce the accumulation of particulate matter (impurities 100) on the first filter body 30 and the second filter body 40. The impurities 100 in the fluid passing through the first filter body 30 or the second filter body 40 can be accumulated at the bottom of the first filter body 30 or the second filter body 40, reducing the risk of the first filter body 30 or the second filter body 40 being blocked, and improving the cleanliness and service life of the filter assembly.

[0056] The internal structure of the fiber filter element 50 in this embodiment is fibrous, which can effectively absorb the noise and vibration generated by the impact of the fluid on the first filter body 30 and the second filter body 40; at the same time, it can also reduce the noise and vibration generated by the impurities 100 adhering to the first filter body 30 and the second filter body 40, thereby reducing noise pollution and improving the user experience.

[0057] In addition, the filter assembly in this embodiment is formed by connecting the first filter body 30 and the second filter body 40, and the fiber filter core 50 is filled in the second accommodating chamber between the first filter body 30 and the second filter body 40. When the fluid flows through the filter assembly (taking the fluid flowing from the first flow channel 11 into the first accommodating chamber 13 as an example), the first filter body 30 first filters out the larger impurities 100 and accumulates them at the bottom of the first filter body 30; then the fiber filter core 50 filters the fluid again, filters out the smaller impurities 100, and attaches them to the inside of the fiber filter core 50; finally, the fluid is filtered through the second filter body 40 to further improve the filtering efficiency. In other words, the filter assembly can filter the fluid three times, thereby ensuring the cleanliness of the fluid and extending the service life of the filtering and silencing device.

[0058] like Figure 1-Figure 4 As shown, in this embodiment, a plurality of through holes 32 are provided on the first filter body 30 and the second filter body 40, and the plurality of through holes 32 are evenly arranged, and the through holes 32 are configured to allow fluid to flow. The operator can flexibly set the shape and number of the through holes 32 according to the size and number of the impurities 100 to ensure the filtering effect on the fluid.

[0059] Please continue to refer to Figure 1-Figure 4 In this embodiment, a first flange 31 extends from the first filter body 30, and a second flange 41 extends from the second filter body 40. The first flange 31 and the second flange 41 are detachably connected. The operator can detachably connect the first flange 31 and the second flange 41 by bolts, or by threaded connection.

[0060] It is understandable that the arched first filter body 30 and the second filter body 40 in this embodiment can be set to a hemispherical or eggshell shape, and the first filter body 30 and the second filter body 40 are made of metal material to improve their strength and extend their service life.

[0061] like Figure 1-Figure 2As shown, the fiber filter core 50 in this embodiment is spherical or ellipsoidal, and a plurality of filter cavities 51 are arranged inside the fiber filter core 50, that is, the fiber filter core 50 is honeycomb-shaped. The spherical or ellipsoidal fiber filter core 50 can be well adapted to the first filter body 30 and the second filter body 40 to ensure that the fiber filter core 50 can be filled in the second accommodating chamber and fit well with the inner surface of the first filter body 30 and the second filter body 40. The filter cavities 51 inside the fiber filter core 50 can not only filter the impurities 100 with a smaller volume, but also absorb the vibration generated by the first filter body 30 and the second filter body 40 to reduce the generation of noise.

[0062] like Figure 1-Figure 3 As shown, the shell in this embodiment includes a first shell 10 and a second shell 20, a third flange edge 12 extends from the first shell 10, and a fourth flange edge 22 extends from the second shell 20. The third flange edge 12 and the fourth flange edge 22 are detachably connected to facilitate the subsequent replacement and cleaning of the filter assembly.

[0063] Exemplarily, the third flange 12 and the fourth flange 22 in this embodiment can be detachably connected by bolts or threads. Optionally, the third flange 12 and the fourth flange 22 can both be set to an L-shape, and the third flange 12 is wrapped around the fourth flange 22, or the fourth flange 22 is wrapped around the third flange 12, so as to improve the stability and reliability of the connection between the first shell 10 and the second shell 20. Of course, in other embodiments, the third flange 12 and the fourth flange 22 can also be set to other shapes, which will not be repeated here.

[0064] like Figure 1 and Figure 3 As shown, in this embodiment, the first housing 10 includes a first barrel portion 14 and a first cone portion 15, and the second housing 20 includes a second barrel portion 23 and a second cone portion 24. Specifically, one end of the first barrel portion 14 is connected to the third flange 12, and the other end is connected to the first cone portion 15, and the first flow channel opening 11 is formed at the bottom of the first cone portion 15. One end of the second barrel portion 23 is connected to the fourth flange 22, and the other end is connected to the second cone portion 24, and the second flow channel opening 21 is formed at the bottom of the second cone portion 24.

[0065] The arrangement of the first cone portion 15 and the second cone portion 24 is conducive to the formation of the first flow channel opening 11 and the second flow channel opening 21, thereby facilitating the connection of the inlet and outlet pipes of the fluid. The arrangement of the first barrel portion 14 and the second barrel portion 23 is conducive to increasing the volume of the first accommodating chamber 13, thereby being able to reduce the height of the impurities 100 accumulated at the bottom as much as possible, thereby reducing the clogging of the through holes 32 on the first filter body 30 and the second filter body 40 by the impurities 100, and ensuring the filtering effect.

[0066] It can be understood that in this embodiment, the inner diameter of the first cylindrical portion 14 is larger than the inner diameter of the first cone portion 15 , and the inner diameter of the second cylindrical portion 23 is larger than the inner diameter of the second cone portion 24 .

[0067] like Figure 1-Figure 3 As shown, in this embodiment, a mounting hole 25 is opened on the first shell 10 and / or the second shell 20, and the filtering and silencing device also includes an external connecting pipe 60 and a needle valve 70. One end of the external connecting pipe 60 passes through the mounting hole 25 and is inserted into the fiber filter element 50. The needle valve 70 is connected to the other end of the external connecting pipe 60, and the needle valve 70 is placed outside the first shell 10 and / or the second shell 20.

[0068] When the required fluid needs to be added to the heat pump, the fluid can pass through the needle valve 70 and the external connecting pipe 60 in sequence to reach the fiber filter core 50 of the filter assembly, and the fiber filter core 50 filters the fluid and then flows out from the first flow channel port 11 or the second flow channel port 21 to the user end for use. The needle valve 70 in this embodiment is set as a one-way valve to prevent the fluid from flowing back.

[0069] Furthermore, the type of fluid passed into the needle valve 70 is consistent with the type of fluid flowing into the first flow channel port 11. By increasing the pressure of the fluid flowing into the needle valve 70, the fluid in the external connecting pipe 60 can purge the impurities 100 with a smaller volume in the fiber filter element 50, thereby allowing the impurities 100 remaining in the filter cavity 51 of the fiber filter element 50 to be purged to the outside of the filter assembly. It should be noted that when the fluid enters from the first flow channel port 11, the purged impurities 100 can be discharged from the through hole 32 of the second filter body 40 along the flow direction of the fluid, and then accumulate at the bottom of the second filter body 40. The cleanliness of the fiber filter element 50 is improved, and the filtering effect is enhanced.

[0070] Preferably, the external connecting pipe 60 in this embodiment is arranged at an angle, and the direction of the angle is the same as the flow direction of the fluid in the first accommodating chamber 13. Figure 2 As shown, the external connecting pipe 60 is inclined from right to left, and the flow direction of the fluid in the first accommodating chamber 13 is from right to left. This can avoid the phenomenon that the fluid flowing out of the external connecting pipe 60 is opposite to the fluid flowing in the first accommodating chamber 13, which leads to a decrease in the internal fluid flow rate.

[0071] like Figure 1-Figure 3As shown, in this embodiment, the filtering and silencing device further includes a first flow channel pipe 80 and a second flow channel pipe 90. The first flow channel pipe 80 is disposed in the first flow channel opening 11 and communicates with the first flow channel opening 11, and the second flow channel pipe 90 is disposed in the second flow channel opening 21 and communicates with the second flow channel opening 21. The arrangement of the first flow channel pipe 80 and the second flow channel pipe 90 facilitates the fluid to flow from the first flow channel opening 11 or the second flow channel opening 21 into the first accommodating chamber 13.

[0072] Furthermore, the first flow channel tube 80 and the second flow channel tube 90 in this embodiment have the same structure. The first flow channel tube 80 includes a flat mouth portion 81, a limiting portion 82 and an oblique mouth portion 83. One end of the limiting portion 82 is connected to the flat mouth portion 81, and the other end of the limiting portion 82 is connected to the oblique mouth portion 83. The oblique mouth portion 83 passes through the first flow channel opening 11 and is placed in the first accommodating chamber 13. An inclined end surface 831 is provided on the side of the oblique mouth portion 83 away from the limiting portion 82, and the limiting portion 82 abuts against the outer wall of the first flow channel opening 11.

[0073] The limiting portion 82 abuts against the outer wall of the first flow channel opening 11, thereby limiting the first flow channel tube 80, improving the convenience and stability of the connection between the first flow channel tube 80 and the first flow channel opening 11, and preventing the first flow channel tube 80 from being inserted into the first flow channel opening 11 by too long or too short a distance. At the same time, it is also convenient for the later welding of the first flow channel tube 80 and the outer wall of the first flow channel opening 11, reducing or avoiding the displacement of the first flow channel tube 80 during the welding process.

[0074] The arrangement of the inclined end surface 831 on the oblique mouth portion 83 can guide the fluid to flow out more smoothly, reduce the resistance of the fluid at the outlet and inlet of the pipeline, and thus improve the flow efficiency. In some cases, the design of the inclined end surface 831 on the oblique mouth portion 83 can also enhance the mixing effect of the fluid during the outflow process. When the fluid flows out from the oblique mouth portion 83, due to the changes in flow velocity and flow direction, the fluid between different flow layers will be turbulent and mixed, which is beneficial for some situations where it is necessary to improve the uniformity of the fluid.

[0075] Alternatively, if Figure 2 and Figure 5 As shown, the filter silencer in this embodiment does not need to consider the placement requirements during assembly, and can be placed horizontally or vertically according to actual needs; the fluid inlet and outlet are not distinguished, that is, the fluid can flow into the first accommodating chamber 13 from the first flow channel opening 11, then contact and filter the filter component, and finally flow out from the second flow channel opening 21. The fluid can also flow into the first accommodating chamber 13 from the second flow channel opening 21, contact and filter the filter component, and finally flow out from the first flow channel opening 11.

[0076] Optionally, the fluid in this embodiment may be gas, liquid, or gas-liquid two-phase.

[0077] This embodiment also provides a heat pump, which includes a compressor and the above-mentioned filter-silencer, the compressor has an air intake port and an air outlet, and the filter-silencer is connected to the air intake port and / or the air outlet. Specifically, the first flow channel pipe 80 of the filter-silencer is connected to the air intake port, and the second flow channel pipe 90 is connected to the air outlet. Of course, if the compressor is provided with an enthalpy increase port, the filter-silencer can also be connected to the enthalpy increase port.

[0078] Since the heat pump has the above-mentioned filtering and silencing device, the heat pump has good performance of filtering fluid and reducing noise; at the same time, it has high stability and reliability, extends service life and saves costs.

[0079] Obviously, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0080] Note that in the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A filtering and silencing device, characterized in that: include: A shell, wherein a first accommodating chamber (13) is disposed in the shell, and a first flow channel opening (11) and a second flow channel opening (21) are disposed on the shell, wherein the first flow channel opening (11) is connected to the second flow channel opening (21) through the first accommodating chamber (13); A filter assembly, the filter assembly being arranged in the first accommodating chamber (13); the filter assembly comprising a first filter body (30), a second filter body (40) and a fiber filter core (50); the first filter body (30) and the second filter body (40) are connected to form a second accommodating chamber, and the fiber filter core (50) is filled in the second accommodating chamber; The first filter body (30) is arched toward the first flow channel opening (11), and the second filter body (40) is arched toward the second flow channel opening (21).

2. The filtering and silencing device according to claim 1, characterized in that: The first filter body (30) and the second filter body (40) are both provided with a plurality of through holes (32), and the plurality of through holes (32) are evenly arranged, and the through holes (32) are configured to allow fluid to flow.

3. The filtering and silencing device according to claim 2, characterized in that: A first flange edge (31) extends from the first filter body (30), and a second flange edge (41) extends from the second filter body (40), and the first flange edge (31) and the second flange edge (41) are detachably connected.

4. The filtering and silencing device according to claim 1, characterized in that: The fiber filter core (50) is spherical or ellipsoidal, and a plurality of filter cavities (51) are arranged inside the fiber filter core (50).

5. The filtering and silencing device according to claim 1, characterized in that: The shell comprises a first shell (10) and a second shell (20), wherein a third flange edge (12) extends from the first shell (10), and a fourth flange edge (22) extends from the second shell (20), and the third flange edge (12) and the fourth flange edge (22) are detachably connected.

6. The filtering and silencing device according to claim 5, characterized in that: The first shell (10) comprises a first cylindrical portion (14) and a first cone portion (15), and the second shell (20) comprises a second cylindrical portion (23) and a second cone portion (24); One end of the first cylindrical portion (14) is connected to the third flange (12), and the other end is connected to the first cone portion (15), and the first flow channel opening (11) is formed at the bottom of the first cone portion (15); One end of the second cylindrical portion (23) is connected to the fourth flange edge (22), and the other end is connected to the second cone portion (24). The second flow channel opening (21) is formed at the bottom of the second cone portion (24).

7. The filtering and silencing device according to claim 6, characterized in that: The first shell (10) and / or the second shell (20) is provided with a mounting hole (25), and the filtering and silencing device further comprises an external connecting pipe (60) and a needle valve (70), one end of the external connecting pipe (60) passes through the mounting hole (25) and is inserted into the fiber filter element (50), the needle valve (70) is communicated with the other end of the external connecting pipe (60), and the needle valve (70) is placed outside the first shell (10) and / or the second shell (20).

8. The filtering and silencing device according to claim 1, characterized in that: The filtering and silencing device further comprises a first flow channel pipe (80) and a second flow channel pipe (90); the first flow channel pipe (80) is arranged in the first flow channel opening (11) and is in communication with the first flow channel opening (11); the second flow channel pipe (90) is arranged in the second flow channel opening (21) and is in communication with the second flow channel opening (21).

9. The filtering and silencing device according to claim 8, characterized in that: The first flow channel tube (80) and the second flow channel tube (90) have the same structure; the first flow channel tube (80) comprises a flat mouth portion (81), a limiting portion (82) and an oblique mouth portion (83); one end of the limiting portion (82) is connected to the flat mouth portion (81), and the other end of the limiting portion (82) is connected to the oblique mouth portion (83); the oblique mouth portion (83) passes through the first flow channel opening (11) and is placed in the first accommodating chamber (13); an inclined end surface (831) is provided on a side of the oblique mouth portion (83) away from the limiting portion (82); and the limiting portion (82) abuts against an outer wall of the first flow channel opening (11).

10. A heat pump, characterized in that The heat pump comprises a compressor and a filtering and silencing device according to any one of claims 1 to 9, wherein the compressor has an air intake port and an air exhaust port, and the filtering and silencing device is connected to the air intake port and / or the air exhaust port.

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