Marine turbine impeller structure

Abstract

The utility model relates to the technical field of impellers, and discloses a marine turbine impeller structure which comprises a protective cover, connecting rods fixedly connected to the two sides of the inner wall of the protective cover at equal intervals, a rotating shaft rotationally connected between the connecting rods, hubs fixedly connected to the outer side of the rotating shaft at equal intervals, and first blades fixedly connected to the outer sides of the hubs at equal intervals. And first air guide blades are fixedly connected to one side of the hub and located on one sides of the first blades, and an empty groove is formed in the protective cover. The rotating shaft is conveniently supported through the connecting rods, the rotating shaft can be driven to rotate through external transmission equipment, the hub can be driven to rotate in the rotating process of the rotating shaft, the first blades are driven to rotate in the rotating process of the hub, and then wind can be transferred to flow; in the flowing process, the first air guide pieces can guide the air direction, the situation that the air is disordered in the flowing process is avoided, and meanwhile the empty grooves can intercept most of noise generated by the first blades.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, in particular to an impeller structure of a marine steam turbine. Background Art

[0002] Impeller refers to the wheel disc with moving blades, which is a component of the impulse turbine rotor, and can also refer to the general term for the wheel disc and the rotating blades installed on it. Impellers can be classified according to their shape and opening and closing conditions.

[0003] However, in the prior art, the existing impellers generate noise during the rotation process, which affects the physical and mental health of the surrounding workers. At the same time, the lack of wind direction guidance causes the wind flow rate to be disordered during the transmission of multiple impellers. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a marine steam turbine impeller structure.

[0005] The utility model is implemented by the following technical scheme: a marine steam turbine impeller structure, comprising a shield, both sides of the inner wall of the shield are equidistantly fixedly connected with connecting rods, a rotating shaft is rotatably connected between the plurality of connecting rods, a hub is equidistantly fixedly connected to the outer side of the rotating shaft, a first blade is equidistantly fixedly connected to the outer side of the hub, a first air guide vane is fixedly connected to one side of the hub and located on the side of the first blade, and an empty groove is opened inside the shield.

[0006] Through the above technical scheme, the rotating shaft can be supported by the connecting rod, and the rotating shaft can be driven to rotate through the external transmission equipment. During the rotation of the rotating shaft, the hub can be driven to rotate, so that the first blade can be driven during the rotation of the hub, thereby mobilizing the wind to flow. During the flow, the first air guide vane can guide the wind direction to avoid wind turbulence during the flow. At the same time, the empty slot can intercept most of the noise generated by the first blade.

[0007] As a further improvement of the above solution, a connecting shaft is rotatably connected to the outer side of the rotating shaft and located on one side of the hub, and second blades are fixedly connected to the outer side of the connecting shaft at equal intervals, and the second blades are fixedly connected to the shield.

[0008] Through the above technical solution, the wind is compressed by the second blade during its flow, thereby reducing the air temperature.

[0009] As a further improvement of the above solution, a second air guide vane is fixedly connected to the outer side of the connecting shaft and on one side of the second blade.

[0010] Through the above technical solution, the second air guide piece can also play the role of compressing air.

[0011] As a further improvement of the above solution, the interior of the empty groove is in a vacuum state.

[0012] Through the above technical solution, the noise blocking effect is enhanced through the vacuum state inside the empty slot.

[0013] As a further improvement of the above solution, the bottom of the outer side of the shield is fixedly connected to two bases.

[0014] Through the above technical solution, the shield can be easily fixed and supported by the base.

[0015] As a further improvement of the above solution, the first blade and the second blade are both forged in one piece.

[0016] Through the above technical solution, since the first blade and the second blade are forged in one piece, the possibility of the first blade and the second blade being broken is reduced.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model supports the rotating shaft by connecting rods, and can drive the rotating shaft to rotate by external transmission equipment. During the rotation of the rotating shaft, the wheel hub can be driven to rotate, so that the first blade can be driven to transmit during the rotation of the wheel hub, and thus the wind can be mobilized to flow. During the flow, the first wind guide blade can guide the wind direction, so that the wind is prevented from being turbulent during the flow, and the empty slot can intercept most of the noise generated by the first blade.

[0019] The utility model compresses the wind during its flow through the second blade and the second air guide piece, thereby reducing the air temperature thereof, and increases the noise blocking effect through the vacuum state inside the empty slot. The protective cover can be fixedly supported by the base, and since the first blade and the second blade are integrally forged, the possibility of the first blade and the second blade being broken is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a top view schematic diagram of the structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the structure section of the utility model;

[0023] Figure 4 It is a schematic top view of the overall structure section of the utility model.

[0024] Description of main symbols:

[0025] 1. Shield; 2. Connecting rod; 3. Rotating shaft; 4. Hub; 5. First blade; 6. First air guide vane; 7. Connecting shaft; 8. Second blade; 9. Second air guide vane; 10. Empty slot; 11. Base. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Example:

[0028] Please combine Figure 1-4 A marine steam turbine impeller structure of the present embodiment includes a shield 1, connecting rods 2 are equidistantly fixedly connected to both sides of the inner wall of the shield 1, a rotating shaft 3 is rotatably connected between the multiple connecting rods 2, a hub 4 is equidistantly fixedly connected to the outer side of the rotating shaft 3, a first blade 5 is equidistantly fixedly connected to the outer side of the hub 4, a first air guide piece 6 is fixedly connected to one side of the hub 4 and one side of the first blade 5, an empty slot 10 is opened inside the shield 1, the rotating shaft 3 is supported by the connecting rod 2, and the rotating shaft 3 can be driven to rotate through external transmission equipment, and the hub 4 can be driven to rotate during the rotation of the rotating shaft 3, so that the hub 4 drives the first blade 5 to transmit during the rotation of the hub 4, thereby mobilizing the wind to flow, and the first air guide piece 6 can guide the wind direction during the flow to avoid wind turbulence during the flow, and at the same time the empty slot 10 can intercept most of the noise generated by the first blade 5.

[0029] Please combine Figure 1-4 In the present embodiment, a marine steam turbine impeller structure is provided, and a connecting shaft 7 is rotatably connected to the outer side of the rotating shaft 3 and located on one side of the hub 4. Second blades 8 are fixedly connected to the outer side of the connecting shaft 7 at equal intervals. The second blades 8 are fixedly connected to the shroud 1. The wind is compressed during the flow of the wind through the second blades 8, so that the air temperature is reduced.

[0030] Please combine Figure 1-4 In the marine steam turbine impeller structure of the present embodiment, a second air guide vane 9 is fixedly connected to the outer side of the connecting shaft 7 and on one side of the second blade 8, and the second air guide vane 9 can also play the role of compressing air.

[0031] Please combine Figure 1-4 In the marine steam turbine impeller structure of this embodiment, the interior of the empty slot 10 is in a vacuum state, and the vacuum state inside the empty slot 10 further increases the effect of blocking noise.

[0032] Please combine Figure 1-4In a marine steam turbine impeller structure of this embodiment, the bottom of the outer side of the shroud 1 is fixedly connected to two bases 11, and the shroud 1 is conveniently fixed and supported by the bases 11.

[0033] Please combine Figure 1-4 In the marine steam turbine impeller structure of the present embodiment, the first blade 5 and the second blade 8 are both forged as one piece. Since the first blade 5 and the second blade 8 are both forged as one piece, the possibility of the first blade 5 and the second blade 8 breaking is reduced.

[0034] The implementation principle of a marine steam turbine impeller structure in the embodiment of the present application is as follows: the rotating shaft 3 is supported by the connecting rod 2, and the rotating shaft 3 can be driven to rotate by an external transmission device, and the hub 4 can be driven to rotate during the rotation of the rotating shaft 3, so that the first blade 5 can be driven during the rotation of the hub 4, thereby mobilizing the wind to flow, and the first air guide blade 6 can guide the wind direction during the flow process, so that the wind is prevented from being turbulent during the flow process, and the empty slot 10 can intercept most of the noise generated by the first blade 5;

[0035] The second blade 8 and the second air guide plate 9 compress the wind during its flow, thereby reducing its air temperature. The vacuum state inside the slot 10 increases the noise blocking effect. The base 11 facilitates the fixing and support of the shield 1. Since the first blade 5 and the second blade 8 are forged as one piece, the possibility of the first blade 5 and the second blade 8 breaking is reduced.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A marine steam turbine impeller structure, comprising a shroud (1), characterized in that: Connecting rods (2) are fixedly connected at equal distances on both sides of the inner wall of the shield (1); a rotating shaft (3) is rotatably connected between the connecting rods (2); a wheel hub (4) is fixedly connected at equal distances on the outer side of the rotating shaft (3); a first blade (5) is fixedly connected at equal distances on the outer side of the wheel hub (4); a first air guide plate (6) is fixedly connected on one side of the wheel hub (4) and on one side of the first blade (5); and an empty slot (10) is provided inside the shield (1).

2. A marine steam turbine impeller structure as claimed in claim 1, characterized in that: The outer side of the rotating shaft (3) and located on one side of the wheel hub (4) are rotatably connected to a connecting shaft (7), the outer side of the connecting shaft (7) are equidistantly fixedly connected to second blades (8), and the second blades (8) are fixedly connected to the shield (1).

3. A marine steam turbine impeller structure as claimed in claim 2, characterized in that: A second air guide piece (9) is fixedly connected to the outer side of the connecting shaft (7) and located on one side of the second blade (8).

4. A marine steam turbine impeller structure as claimed in claim 1, characterized in that: The interior of the empty groove (10) is in a vacuum state.

5. A marine steam turbine impeller structure as claimed in claim 1, characterized in that: The bottom of the outer side of the protective cover (1) is fixedly connected to two bases (11).

6. A marine steam turbine impeller structure as claimed in claim 2, characterized in that: The first blade (5) and the second blade (8) are both forged in one piece.

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