Rotating impeller comprehensive performance test device

Abstract

The present invention discloses a rotary impeller machine comprehensive performance test device, the rotary impeller machine comprehensive performance test device comprises a workbench, an air delivery member and a bearing support member, the air delivery member is movably arranged on the workbench, and the air delivery member has an airflow cavity, the airflow cavity is connected with the airflow channel of the test piece, the bearing support member is movably arranged on the workbench and is located on one side of the air delivery member, one end of the test piece rotating shaft can pass through the air delivery member and is sleeved with a bearing, and the bearing support member can support the bearing. The rotary impeller machine comprehensive performance test device of the present invention is convenient for the maintenance, inspection and monitoring of the test piece bearing, reduces the difficulty of bearing lubrication and cooling design, improves the reliability of the system, and can meet the assembly of test pieces of different sizes, with high versatility.

Description

Technical Field

[0001] The invention relates to the technical field of rotary impeller machines, and in particular to a rotary impeller machine comprehensive performance test device. Background Art

[0002] Internal flow rotary impeller machinery includes compressors and turbines. Before the impeller machinery is put into use, its comprehensive performance usually needs to be tested.

[0003] In the related art, a comprehensive performance test bench is used to test the comprehensive performance of the impeller. However, the structural design of the performance test bench in the related art is unreasonable. The test piece bearing is in a high-temperature exhaust device / intake device, which makes it difficult to maintain, inspect and monitor the bearing. In addition, it is difficult to lubricate and cool the bearing, which leads to a complex design of the bearing lubrication and cooling system and low reliability. There is also a problem that when the temperature is high, the bearing cannot be effectively lubricated and cooled, resulting in the inability to conduct the test. In addition, the performance test bench in the related art has low versatility and a small adaptability range for test pieces of different sizes. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a rotating impeller comprehensive performance test device, which is convenient for maintenance, inspection and monitoring of the test piece bearings, and is convenient for lubrication and cooling of the bearings. The bearing support and air delivery parts of the test device of the present application are independent and relatively movable structural parts, which is convenient for assembling test pieces of different sizes and has high versatility.

[0006] The rotary impeller comprehensive performance test device of the embodiment of the present invention comprises: a workbench; an air delivery member, which is movably arranged on the workbench and has an air flow cavity, and the air flow cavity is connected to the air flow channel of the test piece; a bearing support member, which is movably arranged on the workbench and is located on one side of the air delivery member, one end of the test piece's rotating shaft can pass through the air delivery member and is sleeved with a bearing, and the bearing support member can support the bearing.

[0007] In the rotating impeller machine comprehensive performance test device of the embodiment of the present invention, the bearing support member and the air delivery member are two independent structural members, and both the air delivery member and the bearing support member can be movably arranged on the workbench. Therefore, when testing different types of test pieces, the air delivery member and the bearing support member can be adaptively moved to adapt to the assembly of different types of test pieces, so as to meet the test requirements of different machine models. In addition, one end of the test piece's rotating shaft passes through the air delivery member and is supported on the bearing support member. Therefore, compared with the existing scheme, the test bench in the present application can support the bearing outside the air delivery member, and the bearing is not affected by the high temperature environment in the air flow cavity, which reduces the difficulty of bearing lubrication and cooling design, improves system reliability, verifies that the test device runs well, improves test accuracy, and the bearing is supported on the outside of the air delivery member, which is convenient for maintenance, inspection and monitoring of the bearing.

[0008] In some embodiments, the gas delivery component includes a shell and a connecting pipe, the shell is connected to the test piece, the shell has the airflow cavity, and the connecting pipe is connected to the shell and communicates with the airflow cavity.

[0009] In some embodiments, the housing is an annular structure, and one end of the test piece shaft can pass through the central annular hole of the housing and be supported on the bearing support.

[0010] In some embodiments, there are a plurality of connecting pipes, and the plurality of connecting pipes are spaced apart in a circumferential direction of the shell and are symmetrically arranged with respect to the shell.

[0011] In some embodiments, the housing includes an outer shell and an inner shell, the inner shell is disposed in the outer shell and has an airflow cavity.

[0012] In some embodiments, the outer shell has a connection port, the inner shell has a connection pipe branch connected to the airflow cavity, a portion of the connection pipe branch extends into the connection port, and the connection pipe is connected at the connection port and connected to the connection pipe branch.

[0013] In some embodiments, the housing includes an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

[0014] In some embodiments, the bearing support member includes a support seat, a support surface of the support seat has a groove extending along the length direction of the rotating shaft, and at least a portion of the bearing is fitted in the groove.

[0015] In some embodiments, the bearing support further includes a clamping plate, which is sleeved on the bearing, and a portion of the clamping plate fits in the groove and is connected to the support seat.

[0016] In some embodiments, the card plate includes an upper card plate and a lower card plate, the lower card plate is fitted in the groove, and the upper card plate is connected to the support seat via a connector passing through the lower card plate.

[0017] In some embodiments, the support seat includes an upper support seat and a lower support seat, the upper support seat is connected above the lower support seat and is used to support the rotating shaft, and the cross-sectional area of ​​the lower support seat gradually decreases in a direction away from the workbench.

[0018] In some embodiments, the bearing support member further includes a cover plate, which is connected to the support surface and covers the outer side of the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a comprehensive performance test device for a rotary impeller according to an embodiment of the present invention.

[0020] Figure 2 It is a partial structural schematic diagram of a rotary impeller comprehensive performance test device according to an embodiment of the present invention.

[0021] Figure 3 It is a partial structural explosion diagram of a rotary impeller comprehensive performance test device according to an embodiment of the present invention.

[0022] Figure 4 1 is a schematic structural diagram of a housing of a rotary impeller comprehensive performance test device according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] Gas transmission component 1, shell 11, outer shell 112, upper shell 1121, lower shell 1122, inner shell 113, connecting pipe branch 114, connecting pipe 12, bearing support 2, support seat 21, groove 211, upper support seat 212, lower support seat 213, clamping plate 22, upper clamping plate 221, lower clamping plate 222, cover plate 23, test piece 3, rotating shaft 31, bearing 32. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0026] like Figure 1-Figure 4 As shown, the rotary impeller comprehensive performance test device of the embodiment of the present invention comprises a workbench, an air delivery member 1 and a bearing support member 2. It should be noted that before the rotary impeller machine is put into use, its comprehensive performance needs to be tested, that is, the test bench is used to simulate the operating environment of the machine, and the performance of the impeller is tested under the trial operation environment.

[0027] Specifically, the gas delivery member 1 is movably mounted on the workbench, and the gas delivery member 1 has an airflow cavity, which is connected to the airflow channel of the test piece 3. It should be noted that common rotary impeller machines include compressors or compressors and turbines or turbines. If the test piece 3 is a compressor or compressor, the gas delivery member 1 can be used as an exhaust device for high-temperature and high-pressure exhaust. If the test piece 3 is a turbine or turbine, the gas delivery member 1 can be used as an intake device for high-temperature and high-pressure intake.

[0028] Further, the bearing support 2 is located at one side of the gas delivery member 1, one end of the rotating shaft 31 of the test piece 3 can pass through the gas delivery member 1 and be sleeved with a bearing 32, and the bearing support 2 can support the bearing 32. In other words, the bearing support 2 can fix and support the rotating shaft 31 of the test piece, and the gas delivery member 1 can be used for the air intake or exhaust of the test piece 3.

[0029] It should be noted that, in the test bench in the related technology, the bearing is supported in an air inlet / outlet housing. Since the air inlet / outlet housing is connected to the air flow channel, the high-temperature air flow in the air flow channel will transfer heat toward the area where the bearing is located, causing the bearing to be in a high-temperature environment. It is difficult to effectively lubricate and cool the bearing, resulting in poor test results or difficulty in carrying out the test. In addition, when performing maintenance and inspection on the bearing located in the air inlet / outlet housing, the external housing needs to be disassembled, which is inconvenient in actual operation.

[0030] In the rotary impeller comprehensive performance test device of the embodiment of the present invention, the bearing support 2 and the air delivery member 1 are two independent structural members, and the air delivery member 1 and the bearing support 2 can be movably arranged on the workbench. When testing test pieces 3 of different models, the air delivery member 1 and the bearing support 2 can be adaptively moved to adapt to the assembly of test pieces 3 of different models, so as to meet the test requirements of different machine models. In addition, one end of the test piece rotating shaft 31 passes through the air delivery member 1 and is supported on the bearing support 2. Therefore, compared with the existing scheme, the test bench in the present application can support the bearing 32 outside the air delivery member, and the bearing 32 is not affected by the high temperature environment in the air flow cavity, which reduces the difficulty of lubrication and cooling design of the bearing 32, improves system reliability, ensures that the test device runs well, and improves test accuracy. Moreover, the bearing 32 is supported on the outside of the air delivery member 1, which is convenient for maintenance, inspection and monitoring of the bearing 32.

[0031] Furthermore, the bearing in the related art is located in the inlet / outlet air housing, and a support plate is arranged circumferentially therearound, and the bearing is supported between the support plates. Compared with the present application, the support plate is not adjustable, that is, a single test bench can only adapt to bearings of one size, and accordingly, the model range of the test pieces that can be assembled is small, while the support seat 21 of the present application is independent of the air delivery piece 1, and the support seat 21 can be replaced or adjusted according to the size of the bearing, thereby improving the versatility of the test bench.

[0032] Furthermore, if Figure 1-Figure 3 As shown, the gas delivery member 1 includes a shell 11 and a connecting pipe 12, the shell 11 is connected to the test piece 3, the shell 11 has an airflow cavity, and the connecting pipe 12 is connected to the shell 11 and communicates with the airflow cavity. It should be noted that the connecting pipe 12 of the present application can be used for air intake (the test piece 3 is a turbine or turbine) or for exhaust (the test piece 3 is a compressor or compressor), and the airflow channel, airflow cavity and connecting pipe 12 of the test piece 3 can constitute an intake / exhaust system.

[0033] Alternatively, if Figure 1-Figure 4 As shown, the housing 11 is an annular structure, and one end of the rotating shaft 31 can pass through the central annular hole of the housing 11 and be supported on the bearing support 2. Specifically, the matching ends of the rotating shaft 31 and the bearing support 2 are provided with a bearing 32, and the bearing support 2 can support the bearing 32. The housing 11 with an annular structure can provide an avoidance space for the setting of the rotating shaft 31, so as to meet the assembly of the test piece 3 on the test device.

[0034] Alternatively, if Figure 1 As shown, there are multiple connecting pipes 12, and the multiple connecting pipes 12 are spaced apart in the circumferential direction of the shell 11 and arranged symmetrically about the shell 11. Therefore, the spaced and symmetrically arranged connecting pipes 12 can not only keep a proper distance between the connecting pipes 12 to facilitate the layout, but also make the load on the shell 11 evenly distributed, avoid the generation of lateral loads and excessive local loads on the shell 11, and improve the structural stability of the shell 11.

[0035] Alternatively, if Figure 2-Figure 4 As shown, the housing 11 includes an outer shell 112 and an inner shell 113, wherein the inner shell 113 is disposed inside the outer shell 112 and has an airflow cavity. Thus, the housing 11 is composed of an independent outer shell 112 and an inner shell 113, and the outer shell 112 can be made of a relatively high-strength material to withstand the load transmitted by the test piece 3, and the inner shell 113 can be designed with a thin wall to reduce the cost of the test device.

[0036] Furthermore, if Figure 4 As shown, the outer shell 112 has a connection port, the inner shell 113 has a connection pipe branch 114 connected to the airflow cavity, a portion of the connection pipe branch 114 extends into the connection port, and the connection pipe 12 is connected at the connection port and communicates with the connection pipe branch 114 .

[0037] In other words, the connecting tube 12 is fixedly connected to the outer shell 112, and the opening of the connecting tube 12 is located at the connection port and is opposite to and connected to the connecting tube branch 114, so that the airflow can flow along the connecting tube 12, the connecting tube branch 114, the airflow cavity and the airflow channel in the test piece 3. The connecting tube 12 is connected to the outer shell 112, and its load can be transferred to the outer shell 112 with higher structural strength to ensure the stability of the connection between each component.

[0038] Alternatively, if Figure 3 As shown, the outer shell 112 includes an upper shell 1121 and a lower shell 1122, and the upper shell 1121 and the lower shell 1122 are detachably connected. Therefore, the connection between the upper shell 1121 and the lower shell 1122 can be removed, so as to facilitate the replacement of the inner shell 113, so that the test device of the present application can replace the adapted inner shell 113 when it is used for different types of rotary impeller machines, thereby improving the versatility and applicability of the test device, meeting the installation and test requirements of test pieces 3 of different sizes, flow rates, and pressure levels, and reducing the modification cost of the test device that does not meet the verification requirements of different test pieces. For example, for compressor or compressor test pieces, the inner shell 113 is set to an adapted model according to the test piece requirements, which can effectively reduce the harmful exhaust volume and improve the gasp-relief capability of the test device; for turbine or turbine test pieces, it can effectively reduce the intake volume, improve the intake pressure and flow regulation efficiency, and save test time.

[0039] In addition, the outer shell 112 can be designed to have a larger size, thereby increasing the replaceable range of the inner shell 113 and further improving the versatility of the test bench of the present application.

[0040] In some embodiments, Figure 2 and Figure 3 As shown, the bearing support 2 includes a support seat 21, and the support surface of the support seat 21 has a groove 211 extending along the length direction of the rotating shaft 31, and at least part of the bearing 32 is fitted in the groove 211. Therefore, the bearing 32 is fitted in the groove 211, and the assembly of the bearing 32 can be limited by the cooperation between the groove 21 and the bearing 32, thereby improving the stability of the support seat 21 supporting the rotating shaft 31, and when the test piece 3 is assembled, the groove 21 can be used to locate the assembly position of the test piece 3, thereby improving the assembly efficiency.

[0041] Alternatively, if Figure 2 and Figure 3 As shown, the bearing support 2 further includes a clamping plate 22 , which is sleeved on the bearing 32 , and a portion of the clamping plate 22 fits in the groove 211 and is connected to the support seat 21 .

[0042] like Figure 2 and Figure 3 As shown, the clamping plate 22 includes an upper clamping plate 221 and a lower clamping plate 222 . The lower clamping plate 222 fits in the groove 211 . The upper clamping plate 221 is connected to the support seat 21 via a connector passing through the lower clamping plate 222 .

[0043] It should be noted that when the size of the rotating shaft 31 is different or the output torque is different, the required bearing 32 is also different. Adaptive design can be performed according to the different sizes of the bearing 32, which improves the versatility of the bearing support 2 and facilitates the replacement or maintenance of the bearing 32.

[0044] In some embodiments, Figure 2 and Figure 3 As shown, the support seat 21 includes an upper support seat 212 and a lower support seat 213. The upper support seat 212 is connected to the upper part of the lower support seat 213 and is used to support the rotating shaft 32. The cross-sectional area of ​​the lower support seat 213 gradually decreases in the direction away from the workbench. Therefore, when the size of the bearing 32 changes, in order to ensure the adaptation of the groove 211 and the bearing 32, the upper support seat 212 can be adjusted without replacing the entire support seat 21, and the lower support seat 213 is arranged in a trapezoidal structure, with high support stability and less material. It should be noted that the structure of the support seat 21 is not limited to the above description, and it only needs to meet the support of the bearing.

[0045] Furthermore, if Figure 3 As shown, the bearing support 2 also includes a cover plate 23, which is connected to the support surface and is covered on the outside of the clamping plate 22, so that the cover plate 23 can be used to shield the bearing 32, optimize the appearance, and prevent dust from falling on the surface of the bearing 32.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A rotary impeller comprehensive performance test device, characterized in that: include: Workbench; A gas delivery member, the gas delivery member is movably arranged on the workbench, and the gas delivery member has an air flow cavity, and the air flow cavity is communicated with the air flow channel of the test piece; A bearing support, wherein the bearing support is movably disposed on the workbench and is located at one side of the gas delivery member, one end of the test piece rotation shaft can pass through the gas delivery member and is sleeved with a bearing, and the bearing support can support the bearing; The gas transmission component includes a shell and a connecting pipe, the shell is connected to the test piece, the shell has the airflow cavity, the connecting pipe is connected to the shell and communicates with the airflow cavity; the shell includes an outer shell and an inner shell, the inner shell is arranged in the outer shell and the inner shell has the airflow cavity.

2. The rotary impeller comprehensive performance test device according to claim 1, characterized in that: The housing is an annular structure, and one end of the test piece shaft can pass through the central annular hole of the housing and be supported on the bearing support.

3. The rotary impeller comprehensive performance test device according to claim 1, characterized in that: There are a plurality of connecting pipes, and the connecting pipes are spaced apart in a circumferential direction of the housing and are symmetrically arranged with respect to the housing.

4. The rotary impeller comprehensive performance test device according to claim 1, characterized in that: The outer shell has a connection port, the inner shell has a connection pipe branch connected to the airflow cavity, a portion of the connection pipe branch extends into the connection port, and the connection pipe is connected to the connection port and communicates with the connection pipe branch.

5. The rotary impeller comprehensive performance test device according to claim 1, characterized in that: The housing includes an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

6. The rotary impeller comprehensive performance test device according to claim 1, characterized in that: The bearing support member comprises a support seat, a support surface of the support seat has a groove extending along the length direction of the rotating shaft, and at least a part of the bearing is fitted in the groove.

7. The rotary impeller comprehensive performance test device according to claim 6, characterized in that: The bearing support also includes a clamping plate, which is sleeved on the bearing, and a portion of the clamping plate is fitted in the groove and connected to the support seat.

8. The rotary impeller comprehensive performance test device according to claim 7, characterized in that: The clamping plate comprises an upper clamping plate and a lower clamping plate, the lower clamping plate is fitted in the groove, and the upper clamping plate is connected to the support seat via a connecting piece passing through the lower clamping plate.

9. The rotary impeller comprehensive performance test device according to claim 6, characterized in that: The support seat comprises an upper support seat and a lower support seat, wherein the upper support seat is connected above the lower support seat and is used to support the rotating shaft, and the cross-sectional area of ​​the lower support seat gradually decreases in a direction away from the workbench.

10. The rotary impeller comprehensive performance test device according to claim 7, characterized in that: The bearing support also includes a cover plate, which is connected to the support surface and covers the outer side of the clamping plate.

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