A water distribution ring pipe for impulse turbine capable of observing bifurcated pipe flow patterns

Abstract

The present invention belongs to the technical field of water distribution ring pipes for Pelton turbines, and particularly relates to a water distribution ring pipe for Pelton turbines capable of observing flow patterns in bifurcated pipes. The technical solution is as follows: a water distribution ring pipe for Pelton turbines capable of observing flow patterns in bifurcated pipes comprises a water distribution ring pipe, to which are connected a plurality of bifurcated pipes, each of which is connected to a nozzle; a bifurcated pipe slot is provided at the junction of the water distribution ring pipe and the bifurcated pipes; and a flow pattern observation mechanism comprising a fixed seat, a bifurcated pipe water distribution plate provided on the fixed seat, a plexiglass window installed on the bifurcated pipe water distribution plate, the bifurcated pipe water distribution plate inserted into the bifurcated pipe slot, a placement slot in communication with the plexiglass window provided in the fixed seat, a light source generator and a high-speed camera for observing flow patterns in flow channels on both sides of the bifurcated pipe water distribution plate respectively installed in the placement slots. The present invention provides a water distribution ring pipe for Pelton turbines capable of observing flow patterns in flow channels on both sides of the bifurcated pipe water distribution plate.

Description

Technical Field

[0001] The invention belongs to the technical field of a water distribution ring pipe of an impulse turbine, and in particular relates to a water distribution ring pipe of an impulse turbine capable of observing the flow state of a bifurcated pipe. Background Art

[0002] A Pelton turbine is a hydraulic machine that uses high-speed water flow to impact a runner. The water distribution ring primarily guides the incoming flow, while the bifurcated manifolds and manifolds distribute the flow rate within the ring and influence the quality of the outflow, which in turn impacts the unit's performance. During testing, visualization of the flow field within the water distribution ring can directly demonstrate the relationship between the flow distribution within the hydraulic machine and the flow field at the manifolds. Currently, the bifurcated manifolds and manifolds are not designed during the manufacturing process, making it impossible to visualize the flow pattern within the flow channel and difficult to conduct internal flow field research. Summary of the Invention

[0003] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a water distribution ring pipe for an impulse turbine, which can observe the flow state in the flow channels on both sides of the bifurcated water distribution plate.

[0004] The technical solution adopted in the present invention is:

[0005] A water distribution ring pipe for an impulse turbine capable of observing the flow state of a bifurcated pipe comprises a water distribution ring pipe, to which a plurality of bifurcated pipes are connected, and to which nozzles are connected; a bifurcated pipe slot is provided at the intersection of the water distribution ring pipe and the bifurcated pipe; and a flow state observation mechanism comprising a fixing seat, on which a bifurcated pipe water distribution plate is provided, at least one bifurcated pipe water distribution plate is installed with an organic glass window, the bifurcated pipe water distribution plate is inserted into the bifurcated pipe slot, and a placement groove connected to the organic glass window is provided in the fixing seat, wherein a light source generator and a high-speed camera for observing the flow state in the flow channels on both sides of the bifurcated pipe water distribution plate are respectively installed.

[0006] The present invention uses a high-speed camera inside the bifurcated manifold to observe the flow patterns within the flow channels on both sides of the bifurcated manifold. This allows visualization and analysis of the flow patterns within the channels, allowing for research into the flow field within the water distribution ring. The high-speed camera, light source generator, and organic glass window overcome the limitations of conventional water distribution ring manifold internal flow field visualization testing.

[0007] As a preferred embodiment of the present invention, a mounting groove is further included. The mounting groove is disposed at the junction of the water distribution ring pipe and the bifurcated pipe, the mounting groove being connected to the bifurcated pipe slot, and the fixing seat of the flow pattern observation mechanism is inserted into the mounting groove. The fixing seat is inserted into the mounting groove, which facilitates its securement. The fixing seat is fixed in position, ensuring the fixed position of the organic glass window, facilitating observation of the flow pattern at a specific location. The fixing seat and the mounting groove are tightly fitted together, improving the sealing of the bifurcated pipe slot and preventing water leakage.

[0008] As a preferred solution of the present invention, flange plates are provided at both ends of the fixing seat, and the fixing seat is connected to the end of the mounting groove via the flange plates. The fixing seat is reliably connected to the mounting groove via the flange plates, which facilitates fixing the fixing seat and setting the sealing element.

[0009] As a preferred solution of the present invention, a connecting ring is further included, which connects a plurality of bifurcated pipes. When the bifurcated pipes are connected to the connecting ring, the nozzles or extension pipes connected to the bifurcated pipes can be reliably fixed to ensure stability.

[0010] As a preferred solution of the present invention, a plurality of ribs are connected between the connecting ring and the water distribution ring pipe, and the ribs can enhance the stability of the connecting ring.

[0011] As a preferred embodiment of the present invention, the water distribution ring pipe, comprising the plurality of branch pipes, the plurality of mounting grooves, the plurality of ribs, and the connecting ring, is split horizontally in the middle, with the upper and lower portions of the water distribution ring pipe being integrally formed. By integrally forming the upper and lower portions of the water distribution ring pipe, the connection seams are reduced, facilitating installation while also improving the stability and sealing of the water distribution ring pipe.

[0012] As a preferred solution of the present invention, the upper and lower parts of the water distribution ring pipe are connected by a flange.

[0013] As a preferred embodiment of the present invention, an arc-shaped opening is provided on one side of the fixing seat, and the bifurcated pipe water distribution plate is installed within the arc-shaped opening of the fixing seat. The contour line of the arc-shaped opening matches the contour line of the bifurcated pipe slot, and the surface of the fixing seat closely matches the inner wall of the bifurcated pipe slot. The arc-shaped opening and contour line of the fixing seat match the contour line of the bifurcated pipe slot, thereby achieving a smooth transition within the water distribution ring pipe and avoiding affecting the flow state. The surface of the fixing seat closely matches the inner wall of the bifurcated pipe slot, which can improve the sealing between the fixing seat and the water distribution ring pipe and prevent water leakage.

[0014] As a preferred embodiment of the present invention, the organic glass window is provided with an embedded groove, into which the light source generator and the high-speed camera extend. Due to the embedded groove in the organic glass window, the light source generator and the high-speed camera are located inside the water distribution ring pipe after installation, while ensuring a sealed environment and improving the flow observation effect.

[0015] As a preferred solution of the present invention, the bifurcated pipe notch is located on one side of the acute angle at the junction of the water distribution ring pipe and the bifurcated pipe.

[0016] The beneficial effects of the present invention are:

[0017] The present invention uses a high-speed camera inside the bifurcated manifold to observe the flow patterns within the flow channels on both sides of the bifurcated manifold. This allows visualization and analysis of the flow patterns within the channels, allowing for research into the flow field within the water distribution ring. The high-speed camera, light source generator, and organic glass window overcome the limitations of conventional water distribution ring manifold internal flow field visualization testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is the assembly drawing of the flow observation mechanism and the lower part of the water distribution ring pipe;

[0020] Figure 3 It is a structural diagram of the flow observation mechanism;

[0021] Figure 4 It is a partial structural diagram of the flow observation mechanism;

[0022] Figure 5 This is a schematic diagram of the branch pipe water distribution plate structure.

[0023] In the figure: 1-water distribution ring pipe; 2-branch pipe; 3-flow observation mechanism; 4-mounting groove; 5-connecting ring; 21-branch pipe notch; 31-fixing seat; 32-branch pipe water distribution plate; 33-plexiglass window; 34-placement groove; 35-light source generator; 36-high-speed camera; 37-flange plate; 51-rib plate; 311-arc-shaped opening; 331-embedded groove. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only 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 herein can be arranged and designed in various different configurations.

[0025] 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 claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features therein may be combined with each other unless there is a conflict.

[0026] like Figures 1 to 5As shown, the water distribution ring pipe for a Pelton turbine capable of observing the flow pattern of bifurcated pipes of this embodiment includes a water distribution ring pipe 1, to which are connected several bifurcated pipes 2, each of which is connected to a nozzle. A bifurcated pipe slot 21 is provided at the intersection of the water distribution ring pipe 1 and the bifurcated pipes 2. The flow pattern observation mechanism 3 also includes a fixing base 31, on which a bifurcated pipe water distribution plate 32 is mounted. At least one bifurcated pipe water distribution plate 32 is mounted with an organic glass window 33. The bifurcated pipe water distribution plate 32 is inserted into the bifurcated pipe slot 21. The fixing base 31 is provided with a placement slot 34 connected to the organic glass window 33. The placement slot 34 is respectively equipped with a light source generator 35 and a high-speed camera 36 for observing the flow pattern in the flow channels on both sides of the bifurcated pipe water distribution plate 32. The bifurcated pipe slot 21 is located on one side of the acute angle at the intersection of the water distribution ring pipe 1 and the bifurcated pipe 2.

[0027] The high-speed camera 36 of the present invention transmits image information to any display via a data cable. High-speed camera 36 observes the flow patterns within the flow channels on both sides of the bifurcated water distribution plate 32, analyzes the flow patterns within the channels through visualization, and studies the flow field within the water distribution ring pipe 1. The high-speed camera 36, ​​light source generator 35, and organic glass window 33 overcome the limitation of conventional water distribution ring pipe 1's internal flow field visualization test.

[0028] The present invention can select the optimal organic glass window 33 by processing organic glass windows 33 of different sizes or materials and performing multiple different observations.

[0029] To facilitate the securement of the flow pattern observation mechanism 3, the present invention further includes a mounting groove 4, which is disposed at the junction of the water distribution ring pipe 1 and the bifurcated pipe 2. The mounting groove 4 is connected to the bifurcated pipe slot 21, and the fixing seat 31 of the flow pattern observation mechanism 3 is inserted into the mounting groove 4. The fixing seat 31 is inserted into the mounting groove 4, making it easier to secure the fixing seat 31. The fixed position of the fixing seat 31 ensures that the position of the organic glass window 33 is fixed, facilitating the observation of the flow pattern at a specific location. The fixing seat 31 and the mounting groove 4 can be tightly fitted together, improving the sealing of the bifurcated pipe slot 21 and preventing water leakage.

[0030] The fixing seat 31 is provided with flange plates 37 at both ends, and the fixing seat 31 is connected to the end of the mounting groove 4 through the flange plates 37. The fixing seat 31 is reliably connected to the mounting groove 4 through the flange plates 37, which facilitates fixing the fixing seat 31 and setting the sealing element.

[0031] To enhance the overall stability of the water distribution ring 1, the present invention also includes a connecting ring 5, which connects the multiple branch pipes 2. Connecting the multiple branch pipes 2 to the connecting ring 5 securely secures the nozzles or extension pipes attached to the branch pipes 2, ensuring stability. Several ribs 51 are connected between the connecting ring 5 and the water distribution ring 1. These ribs 51 enhance the stability of the connecting ring 5.

[0032] In the present invention, the water distribution ring pipe 1, comprising the plurality of branch pipes 2, the plurality of mounting grooves 4, the plurality of ribs 51, and the connecting ring 5, is split horizontally in the middle, with the upper and lower portions of the water distribution ring pipe 1 being integrally formed. The upper and lower portions of the water distribution ring pipe 1 are connected via flanges. By integrally forming the upper and lower portions of the water distribution ring pipe 1, the number of joint seams is reduced, facilitating installation while also improving the overall stability and sealing of the water distribution ring pipe 1.

[0033] To prevent the fixed seat 31 from affecting the flow pattern of the water, an arc-shaped opening 311 is provided on one side of the fixed seat 31. The bifurcated pipe water distribution plate 32 is installed within the arc-shaped opening 311 of the fixed seat 31. The contour of the arc-shaped opening 311 matches the contour of the bifurcated pipe slot 21, and the surface of the fixed seat 31 closely fits the inner wall of the bifurcated pipe slot 21. The arc-shaped opening 311 and the contour of the fixed seat 31 match the contour of the bifurcated pipe slot 21, thereby achieving a smooth transition inside the water distribution ring pipe 1 and avoiding affecting the flow pattern. The surface of the fixed seat 31 closely fits the inner wall of the bifurcated pipe slot 21, which can improve the sealing between the fixed seat 31 and the water distribution ring pipe 1 and prevent water leakage.

[0034] The organic glass window 33 is provided with an embedding groove 331, into which the light source generator 35 and the high-speed camera 36 extend. Due to the embedding groove 331 on the organic glass window 33, the light source generator 35 and the high-speed camera 36 are located inside the water distribution ring pipe 1 after installation, thereby improving the flow state observation effect while ensuring sealing.

[0035] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that falls within the scope defined by the claims of the present invention falls within the scope of protection of the present invention.

Claims

1. A water distribution ring pipe for an impulse turbine capable of observing the flow pattern of a bifurcated pipe, comprising a water distribution ring pipe (1), a plurality of bifurcated pipes (2) connected to the water distribution ring pipe (1), and nozzles connected to the bifurcated pipes (2); characterized in that: A bifurcated pipe notch (21) is provided at the junction of the water distribution ring pipe (1) and the bifurcated pipe (2); and a flow state observation mechanism (3) is further provided. The flow state observation mechanism (3) includes a fixed seat (31), a bifurcated pipe water distribution plate (32) is provided on the fixed seat (31), at least one bifurcated pipe water distribution plate (32) is installed with an organic glass window (33), the bifurcated pipe water distribution plate (32) is inserted into the bifurcated pipe notch (21), and a placement groove (34) in communication with the organic glass window (33) is provided in the fixed seat (31), and a light source generator (35) and a high-speed camera (36) for observing the flow state in the flow channels on both sides of the bifurcated pipe water distribution plate (32) are respectively installed in the placement groove (34); It also includes a mounting groove (4), which is arranged at the junction of the water distribution ring pipe (1) and the bifurcated pipe (2), the mounting groove (4) being in communication with the bifurcated pipe slot (21), and the fixing seat (31) of the flow state observation mechanism (3) being inserted into the mounting groove (4); An arc-shaped opening (311) is provided on one side of the fixing seat (31), and the bifurcated pipe water distribution plate (32) is installed in the arc-shaped opening (311) of the fixing seat (31). The contour line of the arc-shaped opening (311) is aligned with the contour line of the bifurcated pipe slot opening (21), and the surface of the fixing seat (31) is closely aligned with the inner wall of the bifurcated pipe slot opening (21).

2. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to claim 1, characterized in that: Flange plates (37) are provided at both ends of the fixing seat (31), and the fixing seat (31) is connected to the end of the mounting groove (4) through the flange plates (37).

3. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to claim 1, characterized in that: It also includes a connecting ring (5), which connects a plurality of bifurcated pipes (2).

4. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to claim 3, characterized in that: A plurality of rib plates (51) are connected between the connecting ring (5) and the water distribution ring pipe (1).

5. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to claim 4, characterized in that: The water distribution ring pipe (1), which is composed of the water distribution ring pipe (1), a plurality of branch pipes (2), a plurality of installation grooves (4), a plurality of rib plates (51), and a connecting ring (5), is divided horizontally from the middle, and the upper and lower parts of the water distribution ring pipe (1) are integrally formed.

6. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to claim 5, characterized in that: The upper and lower parts of the water distribution ring pipe (1) are connected via flanges.

7. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to claim 1, characterized in that: An embedding groove (331) is provided in the organic glass window (33), and a light source generator (35) and a high-speed camera (36) extend into the embedding groove (331).

8. The water distribution ring pipe of an impulse turbine capable of observing the flow pattern of bifurcated pipes according to any one of claims 1 to 7, characterized in that: The bifurcated pipe notch (21) is located on one side of the acute angle at the junction of the water distribution ring pipe (1) and the bifurcated pipe (2).

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