Fluid machine

Abstract

The utility model provides a fluid machine. The fluid machine comprises: a pump body assembly having a fluid inlet; one end of the filtering pipeline is communicated with the fluid inlet; the filter screen is arranged in the filter pipeline, the filter screen is provided with a filter surface, and the area of the filter surface is larger than the radial section area of any position of the filter pipeline. The fluorine pump solves the problem that in the prior art, impurities in an inlet pipeline of the fluorine pump easily cause abrasion or jamming of the pump body.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a fluid machine. Background Art

[0002] Fluid machinery (fluorine pumps) are system devices that use pumps to drive liquid refrigerant, overcoming pipe network resistance and circulation. Traditional, outdated data center direct expansion air conditioners are energy-inefficient, and compressors are used to drive refrigerant for natural cooling in winter, summer, and transitional seasons, resulting in energy waste. As energy-saving awareness within the industry increases, various energy-saving technologies such as variable frequency drives, high supply and return air temperatures, and natural cooling continue to advance. The combination and superposition of these technologies have produced even greater energy-saving effects. The role of "fluid machinery" has far surpassed the traditional function of refrigerant transportation. Because it can replace compressor operation and significantly save energy, it has become the core component of various energy-saving technologies. The server equipment in a data center generates a lot of heat and requires year-round cooling. Traditional computer room air conditioning uses vapor compression mechanical refrigeration regardless of the season, which is unable to utilize the natural cooling source in the low-temperature season and results in high energy consumption. However, with fluid machinery (fluorine pump) technology, when the outdoor environment is low in the fall and winter, the compressor can be stopped and the fluid machinery (fluorine pump) drives the liquid refrigerant to the indoor evaporator where it undergoes phase change and vaporization to absorb heat. The gaseous refrigerant then enters the outdoor condenser at a lower temperature and pressure, releasing heat before condensing into liquid and returning to the fluid machinery, repeating the cycle to achieve the purpose of cooling and heat dissipation. Since the use of fluid machinery (fluorine pump) technology can fully utilize the outdoor natural cooling source, it can significantly improve the energy efficiency of the air conditioning system and reduce energy consumption.

[0003] However, during the actual production and installation of the computer room air conditioning system, some impurities usually remain in the system pipelines. During the circulation of the system pipelines, the liquid refrigerant can easily bring these impurities into the fluorine pump, causing internal wear and even jamming of the fluorine pump.

[0004] Therefore, in the prior art, there is a problem that impurities in the inlet pipeline of the fluorine pump easily cause the pump body to wear or get stuck. Utility Model Content

[0005] The main purpose of the utility model is to provide a fluid machinery to solve the problem in the prior art that impurities in the inlet pipeline of a fluorine pump easily cause the pump body to wear or become stuck.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a fluid machinery is provided, including: a pump body assembly, the pump body assembly having a fluid inlet; a filter pipeline, one end of which is connected to the fluid inlet; a filter screen, the filter screen is arranged inside the filter pipeline, the filter screen has a filter surface, and the area of ​​the filter surface is larger than the radial cross-sectional area of ​​any point in the filter pipeline.

[0007] Furthermore, the filter surface protrudes in a direction approaching or away from the fluid inlet.

[0008] Furthermore, the pump assembly includes: a shell portion, one end of the filter pipeline extends into the shell portion; a pump body, the pump body is arranged inside the shell portion, and the pump body has a fluid inlet.

[0009] Furthermore, the filter pipeline includes a connecting pipe section and a containing pipe section, one end of the connecting pipe section away from the containing pipe section is connected to the fluid inlet, and at least a part of the filter screen is arranged in the containing pipe section.

[0010] Furthermore, the diameter of at least a portion of the accommodating pipe section is larger than the diameter of the connecting pipe section.

[0011] Furthermore, the shell portion is provided with a shell connecting pipe corresponding to the fluid inlet, the shell connecting pipe extends along the radial direction of the shell portion and in a direction away from the fluid inlet, and the filter pipeline extends into the shell connecting pipe and communicates with the fluid inlet.

[0012] Furthermore, the pump body assembly also includes a pump body connecting pipe, one end of the pump body connecting pipe extends into the shell connecting pipe, the other end of the pump body connecting pipe extends into the fluid inlet, and the filter pipeline extends into the pump body connecting pipe at one end of the pump body connecting pipe away from the fluid inlet and is connected to the fluid inlet through the pump body connecting pipe.

[0013] Furthermore, the pump body assembly also includes a sealing ring, which is arranged at one end of the pump body connecting pipe extending into the fluid inlet and abuts against the circumferential inner wall of the pump body connecting pipe, and the diameter of the sealing ring is larger than the diameter of the end of the pump body connecting pipe extending into the fluid inlet.

[0014] Furthermore, the filter pipeline passes through the shell connecting pipe and extends into the fluid inlet, and the diameter of one end of the filter pipeline extending into the fluid inlet is larger than the diameter of the fluid inlet.

[0015] Furthermore, the cross-sectional shape of the filter screen in the axial direction of the filter pipeline is any one of a trapezoidal, semicircular, semi-elliptical and conical shape; and / or the mesh number of the filter screen is greater than or equal to 10 and less than or equal to 300.

[0016] Furthermore, the fluid machinery is a fluorine pump.

[0017] Applying the technical solution of the utility model, the fluid machinery in this application includes a pump body assembly, a filter pipeline and a filter screen, the pump body assembly has a fluid inlet; one end of the filter pipeline is connected to the fluid inlet; the filter screen is arranged inside the filter pipeline, the filter screen has a filter surface, and the area of ​​the filter surface is larger than the radial cross-sectional area of ​​any point in the filter pipeline.

[0018] When using the fluid machinery in the present application, since the fluid machinery has a filter line and a filter screen, the pump body assembly can be connected to the pipeline of the external system through the filter line. At the same time, when the external system introduces fluid into the pump body assembly, the fluid needs to enter the filter line and enter the pump body assembly after passing through the filter screen. Therefore, the filter screen can filter impurities that flow with the fluid, thereby avoiding the occurrence of problems such as wear or jamming of the pump body assembly caused by impurities entering the pump body assembly. At the same time, since the area of ​​the filter surface of the filter screen is larger than the radial cross-sectional area of ​​any point in the filter line, the filter screen will not affect the flow effect of the fluid, or will not produce resistance to the flow of the fluid, thereby ensuring the stable operation of the pump body assembly. Therefore, the fluid machinery in the present application effectively solves the problem in the prior art that impurities in the inlet line of the fluorine pump easily cause wear or jamming of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of a fluid machine according to a specific embodiment of the present utility model is shown;

[0021] Figure 2 Shown Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 A schematic diagram showing the positional relationship between the fluid inlet and the filter pipeline in another specific embodiment of the present application is shown;

[0023] Figure 4 The diagram shows the shape of the filter screen and the positional relationship between the filter screen and the filter pipeline in different embodiments of the present application.

[0024] The above drawings include the following reference numerals:

[0025] 10. Pump body assembly; 11. Fluid inlet; 12. Shell part; 121. Shell connecting pipe; 13. Pump body; 14. Pump body connecting pipe; 15. Sealing ring; 20. Filter pipeline; 21. Connecting pipe section; 22. Accommodating pipe section; 30. Filter screen; 31. Filter surface; 40. Upper cover assembly; 50. Lower cover; 60. Mounting plate; 70. Motor assembly. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0029] In order to solve the problem in the prior art that impurities in the inlet pipeline of a fluorine pump easily cause the pump body to wear or get stuck, the present application provides a fluid machine.

[0030] Furthermore, in the following embodiments of the present application, the fluid machine is a refrigerant pump. Preferably, the refrigerant pump is a fluorine pump.

[0031] like Figures 1 to 4 As shown, the fluid machinery in the present application includes a pump body assembly 10, a filter pipeline 20 and a filter screen 30. The pump body assembly 10 has a fluid inlet 11; one end of the filter pipeline 20 is connected to the fluid inlet 11; the filter screen 30 is arranged inside the filter pipeline 20, and the filter screen 30 has a filter surface 31, and the area of ​​the filter surface 31 is larger than the radial cross-sectional area of ​​any point of the filter pipeline 20.

[0032] When using the fluid machinery of the present application, since the fluid machinery has a filter line 20 and a filter screen 30, the pump body assembly 10 can be connected to the pipeline of the external system through the filter line 20. At the same time, when the external system passes fluid into the pump body assembly 10, the fluid needs to enter the filter line 20 and enter the pump body assembly 10 after passing through the filter screen 30. Therefore, the filter screen 30 can filter impurities that flow with the fluid, thereby avoiding the occurrence of problems such as wear or jamming of the pump body assembly 10 caused by impurities entering the pump body assembly 10. At the same time, since the area of ​​the filter surface 31 of the filter screen 30 is larger than the radial cross-sectional area of ​​any point in the filter line 20, the filter screen 30 will not affect the flow effect of the fluid, or will not produce resistance to the flow of the fluid, thereby ensuring the stable operation of the pump body assembly 10. Therefore, the fluid machinery of the present application effectively solves the problem in the prior art that impurities in the inlet pipeline of the fluorine pump easily cause wear or jamming of the pump body.

[0033] In the present application, the area of ​​the filter 30 may refer to the sum of the area of ​​the actual filter 30 and the area of ​​the gaps in the filter 30 .

[0034] It should be noted that, in the present application, the filter pipe 20 is generally a tubular structure. Of course, in the present application, the filter pipe 20 can also be set to other shapes, as long as it can facilitate the connection between the fluid machinery and the external system pipeline.

[0035] Alternatively, as Figure 4 As shown, the filter surface 31 protrudes in a direction close to or away from the fluid inlet 11. This design increases the contact area of ​​the filter screen 30, improves the filtering efficiency, and is also beneficial for the collection and cleaning of impurities, reducing maintenance costs. In practical applications, for example, when processing fluids containing a large amount of solid particles, this design can effectively prevent particles from clogging the inlet and ensure the normal operation of the fluid machinery. In the present application, the protruding direction of the filter surface 31 can be selected according to the actual design and use requirements. Of course, in the present application, the filter surface 31 can also be configured as a curved surface that is reciprocally folded or reciprocally protruded along the axis of the filter pipeline 20.

[0036] In a specific embodiment of the present application, a pump assembly 10 includes a housing 12 and a pump body 13. One end of a filter line 20 extends into the housing 12. The pump body 13 is disposed within the housing 12 and has a fluid inlet 11. Of course, in the present application, the fluid machine may further include an upper cover assembly 40 and a lower cover 50 disposed at the top and bottom of the housing 12, respectively. The lower cover 50 may be mounted on a mounting plate 60. A motor assembly 70 may also be disposed within the housing 12.

[0037] Specifically, the filter pipeline 20 includes a connecting pipe section 21 and a receiving pipe section 22 . One end of the connecting pipe section 21 away from the receiving pipe section 22 is connected to the fluid inlet 11 , and at least a portion of the filter screen 30 is disposed in the receiving pipe section 22 .

[0038] Optionally, the diameter of at least a portion of the accommodating pipe section 22 is larger than the diameter of the connecting pipe section 21. Furthermore, the diameter of at least one end of the accommodating pipe section 22 away from the connecting pipe section 21 is larger than the diameter of the pipeline of the external system, thereby ensuring a sealing effect between the pipeline of the external system and the accommodating pipe section 22.

[0039] Specifically, the housing portion 12 is provided with a housing connecting pipe 121 corresponding to the fluid inlet 11. The housing connecting pipe 121 extends radially of the housing portion 12 and away from the fluid inlet 11. The filter line 20 extends into the housing connecting pipe 121 and communicates with the fluid inlet 11. Furthermore, in the present application, the outer diameter of at least the portion of the connecting pipe section 21 extending into the housing connecting pipe 121 is slightly smaller than the inner diameter of the housing connecting pipe 121, thereby ensuring a seal between the housing connecting pipe 121 and the connecting pipe section 21. Furthermore, the housing connecting pipe 121 and the connecting pipe section 21 can be welded.

[0040] In a specific embodiment of the present application, Figure 1 and Figure 2 As shown, the pump assembly 10 further includes a pump connecting pipe 14, one end of which extends into the housing connecting pipe 121, and the other end of which extends into the fluid inlet 11. The filter line 20 extends from the end of the pump connecting pipe 14 away from the fluid inlet 11 into the pump connecting pipe 14 and communicates with the fluid inlet 11 through the pump connecting pipe 14. That is, in this embodiment, the filter line 20 is actually connected to the fluid inlet 11 through the pump connecting pipe 14. Furthermore, with respect to the portion of the filter line 20 located within the housing connecting pipe 121 and the portion of the pump connecting pipe 14 located within the housing connecting pipe 121, the pump connecting pipe 14 is located between the filter line 20 and the housing connecting pipe 121. The pump connecting pipe 14, the housing connecting pipe 121, and the filter line 20 can be welded to ensure sealing performance.

[0041] Optionally, the pump body connecting pipe 14 in this embodiment can be made of copper.

[0042] Preferably, if Figure 2 As shown, the pump assembly 10 further includes a sealing ring 15, which is disposed at the end of the pump connecting tube 14 extending into the fluid inlet 11 and abuts against the circumferential inner wall of the pump connecting tube 14. The diameter of the sealing ring 15 is larger than the diameter of the end of the pump connecting tube 14 extending into the fluid inlet 11. In other words, in this embodiment, during the installation of the pump connecting tube 14, the sealing ring 15, and the fluid inlet 11, the sealing ring 15 can squeeze the copper pump connecting tube 14, causing it to deform, thereby creating an interference fit between the pump connecting tube 14 and the fluid inlet 11 of the pump body 13, achieving a sealing effect.

[0043] In another specific embodiment of the present application, Figure 3 As shown, the filter line 20 passes through the shell connecting pipe 121 and extends into the fluid inlet 11, and the diameter of the end of the filter line 20 extending into the fluid inlet 11 is larger than the diameter of the fluid inlet 11. In other words, unlike the above embodiment, the filter line 20 is directly connected to the fluid inlet 11. In this case, the filter line 20 can be made of a softer copper material, and its outer diameter is slightly larger than the diameter of the air intake of the pump body 13. In this way, the filter line 20 can be directly pressed into the air intake of the pump body 13, and the two are sealed by an interference fit. The outside of the filter line 20 is then connected to the shell connecting pipe 121 by welding. This structure can omit the pump body connecting pipe 14 and the sealing ring 15 in the above embodiment, thereby streamlining the number of parts of the fluorine pump, reducing production cycle time, and lowering costs.

[0044] Alternatively, as Figure 4As shown, the cross-sectional shape of the filter screen 30 in the axial direction of the filter pipe 20 is any one of a trapezoid, a semicircle, a semi-ellipse and a cone. In this application, the shape of the filter screen 30 can be selected according to actual use and design requirements.

[0045] Optionally, the mesh number of the filter screen 30 is greater than or equal to 10 and less than or equal to 300. In the present application, the mesh number of the filter screen 30 can be selected according to actual use and design requirements. Moreover, the filter screen 30 in the present application can be a high-density filter screen 30. Moreover, in the present application, the filter screen 30 is often woven into a mesh structure with holes by fine metal wires. The number of holes on a certain area of ​​the mesh can be simply referred to as the mesh number, which greatly affects the efficiency of filtering impurities. If the mesh number of the filter screen is too large, some impurities with a relatively small volume may be missed during filtration, thereby affecting the operation of the pump body 13; if the mesh number of the filter screen is too small, the liquid suction resistance will become larger, and the resistance loss of the liquid flow will increase, affecting the efficiency of the fluorine pump. Therefore, the mesh number of the filter screen is generally designed to be between 10 and 300 meshes.

[0046] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0047] 1. Effectively solve the problem in the prior art that impurities in the inlet pipe of the fluorine pump easily cause the pump body to wear or get stuck.

[0048] 2. Simple structure and stable performance.

[0049] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fluid machinery, characterized in that: include: A pump body assembly (10), wherein the pump body assembly (10) has a fluid inlet (11); a filter pipe (20), one end of which is in communication with the fluid inlet (11); A filter screen (30) is provided inside the filter pipe (20), the filter screen (30) having a filter surface (31), and the area of ​​the filter surface (31) is larger than the radial cross-sectional area of ​​any point of the filter pipe (20).

2. The fluid machinery according to claim 1, characterized in that: The filtering surface (31) protrudes in a direction approaching or away from the fluid inlet (11).

3. The fluid machinery according to claim 1, characterized in that: The pump body assembly (10) comprises: a housing portion (12), one end of the filter pipe (20) extending into the housing portion (12); A pump body (13) is provided inside the housing portion (12), and the pump body (13) has the fluid inlet (11).

4. The fluid machinery according to claim 3, characterized in that: The filtering pipeline (20) comprises a connecting pipe section (21) and a containing pipe section (22); one end of the connecting pipe section (21) away from the containing pipe section (22) is in communication with the fluid inlet (11); and at least a portion of the filter screen (30) is disposed within the containing pipe section (22).

5. The fluid machinery according to claim 4, characterized in that: The diameter of at least a portion of the accommodating pipe section (22) is greater than the diameter of the connecting pipe section (21).

6. The fluid machinery according to claim 3, characterized in that: The housing portion (12) is provided with a housing connecting pipe (121) corresponding to the fluid inlet (11); the housing connecting pipe (121) extends along the radial direction of the housing portion (12) and in a direction away from the fluid inlet (11); and the filter pipeline (20) extends into the housing connecting pipe (121) and is communicated with the fluid inlet (11).

7. The fluid machinery according to claim 6, characterized in that: The pump body assembly (10) further comprises a pump body connecting pipe (14), one end of the pump body connecting pipe (14) extending into the shell connecting pipe (121), and the other end of the pump body connecting pipe (14) extending into the fluid inlet (11), and the filter line (20) extending from the end of the pump body connecting pipe (14) away from the fluid inlet (11) into the pump body connecting pipe (14) and communicating with the fluid inlet (11) through the pump body connecting pipe (14).

8. The fluid machinery according to claim 7, characterized in that: The pump body assembly (10) further includes a sealing ring (15), which is arranged at one end of the pump body connecting pipe (14) extending into the fluid inlet (11) and abuts against the circumferential inner wall of the pump body connecting pipe (14), and the diameter of the sealing ring (15) is larger than the diameter of the end of the pump body connecting pipe (14) extending into the fluid inlet (11).

9. The fluid machinery according to claim 6, characterized in that: The filter pipe (20) passes through the shell connecting pipe (121) and extends into the fluid inlet (11), and the diameter of one end of the filter pipe (20) extending into the fluid inlet (11) is larger than the diameter of the fluid inlet (11).

10. The fluid machine according to any one of claims 1 to 9, characterized in that: The cross-sectional shape of the filter screen (30) in the axial direction of the filter pipe (20) is any one of a trapezoidal, semicircular, semi-elliptical and conical shape; and / or The mesh number of the filter (30) is greater than or equal to 10 and less than or equal to 300.

11. The fluid machine according to any one of claims 1 to 9, characterized in that: The fluid machinery is a fluorine pump.

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