Turbine box structure with built-in self-adaptive adjustment inner channel

Abstract

The invention provides a built-in self-adaptive adjustment inner channel turbine box structure which comprises a turbine box inlet, a turbine box throat and a turbine box original inner channel, a plurality of metal sheets are installed in the turbine box original inner channel and connected end to end to form a new inner channel, and each metal sheet is further flexibly connected with the turbine box original inner channel. The sectional area of the new inner channel can be changed along with the flow in the turbine box, and the sectional area of the new inner channel is smaller than that of the original inner channel of the turbine box. According to the turbine box structure with the built-in self-adaptive adjustment inner channel, the multiple metal sheets are additionally arranged in the turbine box to form the inner channel, so that the turbine rotating speed of the turbine box can be increased under the working condition that the flow is small, efficient utilization of fluid is achieved, the connecting structures between the metal sheets are utilized, and the flow rate of the turbine is increased. The turbine box can increase circulation in a self-adaptive mode under the working condition of large flow, the efficiency of a turbine under the calibration point and large flow working condition is guaranteed, and meanwhile the turbine is prevented from being overspeed.

Description

Technical Field

[0001] The invention belongs to the technical field of power machinery, and in particular relates to a turbine box structure with a built-in adaptive adjustment inner channel. Background Art

[0002] The design of the turbine end of the supercharger is to design the configuration and parameters of the turbine and turbine box according to a certain operating point. However, during the operation of the supercharger, the operating conditions will inevitably deviate from the high-efficiency point of the turbine MAP. Changes in flow, especially conditions with small flows, will cause the turbine efficiency to be greatly reduced. If the engine needs to operate under a wider range of operating conditions, the boost effect at low power will have to be abandoned. Summary of the invention

[0003] In view of this, the present invention aims to propose a turbine box structure with a built-in adaptive adjustment inner channel to solve the problems of low working efficiency and poor adaptability of the turbine box.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A turbine box structure with a built-in adaptively adjustable inner channel comprises a turbine box inlet, a turbine box throat and an original inner channel of the turbine box, wherein a plurality of metal sheets are installed inside the inner channel of the turbine box, and a new inner channel is formed by connecting the plurality of metal sheets end to end, and each metal sheet is also softly connected to the inner channel of the turbine box, so that the cross-sectional area of ​​the new inner channel can change with the flow rate in the turbine box, and the cross-sectional area of ​​the new inner channel is smaller than the cross-sectional area of ​​the original inner channel of the turbine box.

[0006] Furthermore, the cross-sectional shapes of the new inner channel and the original inner channel of the turbine box at the same position of the turbine box are similar. When the flow rate is large, the new inner channel can fit better on the original inner channel of the turbine box, and the cross-sectional area is smaller than the cross-sectional area of ​​the original inner channel of the turbine box.

[0007] Furthermore, the connection method between the original wheel box inner channel and the metal sheet at the front end and the metal sheet at the rear end is welding or casting, wherein the metal sheet at the front end is close to the direction of the turbine box inlet, and the metal sheet at the rear end is close to the direction of the turbine box throat.

[0008] Furthermore, the angle range of the connection between the first and last sections of the metal sheet and the original inner channel of the turbine box is 0° to 45°.

[0009] Furthermore, the middle metal sheets are all softly connected to the original inner channel of the turbine box.

[0010] Furthermore, the soft connection is a snap connection or a spring connection.

[0011] Furthermore, the two adjacent metal sheets are connected via a connecting piece.

[0012] Furthermore, the connector distribution is arranged based on actual needs and satisfying component stress, and the connector distribution is equiangular distribution.

[0013] Compared with the prior art, the built-in adaptively adjustable inner channel turbine box structure of the present invention has the following advantages:

[0014] (1) The built-in adaptive inner channel turbine box structure described in the present invention, on the one hand, by adding a number of metal sheets to form an inner channel inside the turbine box, the turbine box can increase the turbine speed under low flow conditions and achieve efficient use of the fluid. On the other hand, by using the connection structure between the metal sheets, the turbine box can adaptively increase the flow under high flow conditions, thereby ensuring the efficiency of the turbine at the calibration point and under high flow conditions, while preventing the turbine from overspeeding. At the same time, based on the built-in adaptive inner channel turbine box structure, the design point can be raised to the high flow condition, so that the turbine box can have a wider flow range and high efficiency area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 A cross-sectional view of a turbine box structure with a built-in adaptive adjustment inner channel according to an embodiment of the present invention Figure 1 ;

[0017] Figure 2 A cross-sectional view of a turbine box structure with a built-in adaptive adjustment inner channel according to an embodiment of the present invention Figure 2 .

[0018] Description of reference numerals:

[0019] 1-turbine box inlet; 2-turbine box throat; 3-original internal channel of turbine box; 4-metal sheet; 5-connector. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", 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; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0024] A turbine box structure with built-in adaptive adjustment inner channel, such as Figure 1 and Figure 2 As shown, it includes a turbine box inlet 1, a turbine box throat 2, an original inner channel 3 of the turbine box, a metal sheet 4, and a connecting piece 5. A plurality of metal sheets 4 are installed inside the inner channel 3 of the turbine box. A new inner channel is formed by connecting the plurality of metal sheets 4 end to end. Each metal sheet 4 is also softly connected to the inner channel 3 of the turbine box, so that the cross-sectional area of ​​the new inner channel can change with the flow rate in the turbine box, and the cross-sectional area of ​​the new inner channel is smaller than the cross-sectional area of ​​the original inner channel 3 of the turbine box.

[0025] Preferably, the cross-sectional shapes of the new inner channel and the original inner channel 3 of the turbine case at the same position of the turbine case are similar, so that the new inner channel can be well fitted on the original inner channel 3 of the turbine case when the flow rate is large, and the cross-sectional area is smaller than the cross-sectional area of ​​the original inner channel 3 of the turbine case;

[0026] The connection method between the original wheel box internal channel 3 and the metal sheet at the front end and the metal sheet at the rear end is welding or casting, wherein the metal sheet at the front end is close to the direction of the turbine box inlet 1, and the metal sheet at the rear end is close to the direction of the turbine box throat 2, to ensure that the new internal channel formed by the metal sheet 2 is smoothly connected to the original internal channel 3 of the turbine box; the angle range of the connection between the first and rear sections of the metal sheet and the original internal channel 3 of the turbine box is 0 to 45°.

[0027] The metal sheets 4 in the middle are all softly connected to the original inner channel 3 of the turbine box, and the soft connection methods include but are not limited to snap-on or spring connections.

[0028] Two adjacent metal sheets 4 are connected via a connector 5 , and the connector 5 is distributed according to actual needs and on the basis of satisfying component stress, including but not limited to equal-angle distribution.

[0029] Compared with the commonly used turbine box, the built-in adaptive adjustment inner channel turbine box structure of this scheme, on the one hand, by adding a number of metal sheets 4 inside the turbine box to form an inner channel, the turbine box can increase the turbine speed under low flow conditions and achieve efficient use of the fluid. On the other hand, by using the connectors between the metal sheets, the turbine box can adaptively increase the flow under high flow conditions, thereby ensuring the efficiency of the turbine at the calibration point and under high flow conditions, and preventing the turbine from overspeeding. At the same time, based on the built-in adaptive adjustment inner channel turbine box structure, the design point can be raised to the high flow condition, so that the turbine box can have a wider flow range and high efficiency area.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A turbine box structure with a built-in adaptive adjustment inner channel, comprising a turbine box inlet, a turbine box throat and an original inner channel of the turbine box, characterized in that: A number of metal sheets are installed inside the turbine box inner channel, and a new inner channel is formed by connecting the metal sheets end to end. Each metal sheet is also softly connected to the turbine box inner channel, so that the cross-sectional area of ​​the new inner channel can change with the flow rate in the turbine box, and the cross-sectional area of ​​the new inner channel is smaller than the cross-sectional area of ​​the original inner channel of the turbine box.

2. The internal adaptively adjustable inner channel turbine box structure according to claim 1, characterized in that: The cross-sectional shapes of the new inner channel and the original inner channel of the turbine case at the same position of the turbine case are similar. When the flow rate is large, the new inner channel can fit better on the original inner channel of the turbine case, and its cross-sectional area is smaller than that of the original inner channel of the turbine case.

3. The turbine box structure with built-in adaptive adjustment inner channel according to claim 1, characterized in that: The connection method between the channel in the original wheel box and the metal sheet at the front end and the metal sheet at the rear end is welding or casting, wherein the metal sheet at the front end is close to the direction of the turbine box inlet, and the metal sheet at the rear end is close to the direction of the turbine box throat.

4. The turbine box structure with built-in adaptive adjustment inner channel according to claim 1, characterized in that: The angle range of the connection between the first and last sections of the metal sheet and the original inner channel of the turbine box is 0° to 45°.

5. The turbine box structure with built-in adaptive adjustment inner channel according to claim 1, characterized in that: The metal sheets in the middle are all softly connected to the original inner channels of the turbine box.

6. The turbine box structure with built-in adaptive adjustment inner channel according to claim 5, characterized in that: The soft connection is a snap connection or a spring connection.

7. The turbine box structure with built-in adaptive adjustment inner channel according to claim 1, characterized in that: Two adjacent metal sheets are connected via a connecting piece.

8. The turbine box structure with built-in adaptive adjustment inner channel according to claim 7, characterized in that: The distribution of connectors is based on actual needs and the stress of components. The connectors are distributed at equal angles.

Images