Bidirectional elbow type water inlet channel and pump station

Abstract

This invention discloses a bidirectional elbow-shaped water inlet channel and a pumping station, comprising a first elbow-shaped water inlet channel and a second elbow-shaped water inlet channel. Both the first and second elbow-shaped water inlet channels are composed of a straight section and an elbow-shaped section, and the first and second elbow-shaped water inlet channels share a single elbow-shaped section. The elbow-shaped section is rotatably connected to the straight section, and the ends of the elbow-shaped section connecting to the straight section are both arc surfaces. The elbow-shaped section rotates around its vertical axis, and the circle formed by the rotation path coincides with the arc surfaces of the first and second elbow-shaped water inlet channels. Therefore, the elbow-shaped section can be connected to either the first or second elbow-shaped water inlet channel. Since the inlet directions of the first and second elbow-shaped water inlet channels are different, the bidirectional water inlet function of this elbow-shaped water inlet channel can be realized to adapt to a bidirectional pumping station.

Description

Technical Field

[0001] This invention relates to the field of water conservancy technology, specifically to a bidirectional elbow-shaped water inlet channel and pumping station. Background Technology

[0002] Elbow-type inlet channels are common fluid mechanics components used to guide fluid in a curved motion within a pipe. They typically consist of a straight section and an elbow bend, forming a 90-degree bend. Elbow-type inlet channels reduce resistance and energy loss as fluid flows through the elbow bend. They effectively alter the direction and velocity of the water flow. The water rotates as it passes through the elbow bend, reducing eddies and turbulence, thus improving the uniformity of fluid distribution within the channel. This ensures relatively consistent flow velocity throughout the pipe system, preventing excessively high or low velocities in certain areas, reducing local resistance, and improving the overall system efficiency.

[0003] Elbow-type inlet channels have been proven in numerous practical engineering projects to possess excellent hydraulic performance and are recommended in pump station design standards. However, existing elbow-type inlet channels are single-channel, allowing water intake only from one direction, and are therefore generally used in unidirectional pump stations. Bidirectional pump stations typically use other types of inlet channels, such as box-type inlet channels. While box-type channels offer advantages like simple construction, they often lead to turbulent water flow, significant hydraulic losses, low system efficiency, and susceptibility to pump cavitation and vibration, potentially causing pump damage, motor overload, and shutdown, thus affecting operational safety. Therefore, a bidirectional elbow-type inlet channel is urgently needed to adapt to bidirectional pump stations and ensure their safe, stable, and efficient operation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a bidirectional elbow-shaped water inlet channel and a pumping station. By designing an elbow-shaped water inlet channel, bidirectional water intake operation of the elbow-shaped water inlet channel can be realized. Furthermore, this elbow-shaped water inlet channel can be applied to a bidirectional pumping station to enable the bidirectional pumping station to perform bidirectional water pumping operation using this elbow-shaped water inlet channel.

[0005] Technical solution: The present invention provides a bidirectional elbow-shaped water inlet channel, including a first elbow-shaped water inlet channel and a second elbow-shaped water inlet channel. Both the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel are composed of a straight section and an elbow-shaped section, and the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel share a elbow-shaped section. The elbow-shaped section is rotatably connected to the straight section of the first elbow-shaped water inlet channel or the second elbow-shaped water inlet channel, and the end of the elbow-shaped section that connects to the straight section is an arc surface.

[0006] Furthermore, the elbow section is located between the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel. The elbow section can rotate around its vertical axis, and the circle formed by the rotation path coincides with the arc surface of the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel.

[0007] Furthermore, the straight sections of the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel are arranged opposite each other.

[0008] Furthermore, it also includes a rotating component and a driving mechanism. The rotating component is equipped with a driving mechanism. The rotating component is connected to the water outlet end of the elbow bend section. The driving mechanism drives the rotating component to rotate the elbow bend section around its vertical axis.

[0009] Preferably, the rotating assembly includes a first connecting housing, a bearing, and a second connecting housing. The bearing is fixedly connected inside the first connecting housing, and the rotating ring of the bearing is fixedly connected to the second connecting housing. A driven gear is fixedly connected to the periphery of the second connecting housing, and the water outlet end of the elbow bend is fixedly connected inside the second connecting housing.

[0010] Preferably, the drive mechanism consists of a servo motor and a gear reducer, wherein the output end of the servo motor is fixedly connected to the input end of the gear reducer, and the output gear of the gear reducer meshes with the driven gear.

[0011] Preferably, both the gear reducer and the driven gear are made of stainless steel.

[0012] The present invention also provides a bidirectional pumping station, including a bidirectional water inlet chamber and a fixed chamber. The bidirectional water inlet chamber is provided with a bidirectional elbow-shaped water inlet channel, and the two inlets of the bidirectional elbow-shaped water inlet channel are respectively located at the two inlets of the bidirectional water inlet chamber. A pump body is fixedly installed in the fixed chamber, and the water inlet end of the pump body is located in the bidirectional water inlet chamber and is fixedly connected to the first connecting shell.

[0013] Preferably, the servo motor is fixed in the fixed chamber, and the gear reducer is located in the bidirectional water inlet chamber.

[0014] Preferably, a gate is provided on the outside of each of the two inlets of the bidirectional water inlet chamber, and a gate hoist is connected to the gate. Beneficial effects

[0015] This invention achieves bidirectional operation of the elbow-shaped water inlet channel by using a combination of a rotatable elbow section and a straight section. This changes the previous situation where elbow-shaped water inlet channels could only be used in unidirectional pumping stations, enabling bidirectional pumping stations to also adopt elbow-shaped water inlet channels. This greatly improves the water inlet flow pattern of bidirectional pumping stations, reduces the risk of pump cavitation, reduces head loss of the pumping unit, improves the operating efficiency of the pumping station, enhances the reliability of the pumping unit, and further ensures the safe and stable operation of the pumping station during irrigation and drainage, resulting in significant economic and social benefits.

[0016] The elbow section of the present invention rotates around its vertical axis, and the circle formed by the rotation path coincides with the arc surface of the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel. Therefore, the elbow section can be connected to either the first elbow-shaped water inlet channel or the second elbow-shaped water inlet channel. Since the inlet orientations of the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel are different, the bidirectional water inlet function of the elbow-shaped water inlet channel can be realized to adapt to bidirectional pumping stations.

[0017] The servo motor of the present invention drives the driven gear to rotate through the gear reducer, thereby driving the second connecting housing to rotate, which in turn causes the elbow section to rotate, so that the elbow section can connect with the arc surface of the first elbow-shaped water inlet channel or the second elbow-shaped water inlet channel according to the water pumping requirements, and select a channel for water supply operation.

[0018] The gate opener of the present invention can control the raising and lowering of the gate at the inlet of the first elbow-shaped water inlet channel or the second elbow-shaped water inlet channel, so that water can flow into the first elbow-shaped water inlet channel or the second elbow-shaped water inlet channel. At this time, the pump body can draw water through the first elbow-shaped water inlet channel or the second elbow-shaped water inlet channel and then discharge it into the corresponding pipe, so that the pumping station can realize bidirectional pumping operation by using the elbow-shaped water inlet channel.

[0019] When pumping water, the bidirectional water inlet chamber of the present invention is filled with water. Therefore, the sealing performance of the connection between the elbow section and the straight section is not required, thereby reducing the difficulty of fitting the elbow section and the straight section together.

[0020] The bearing of the present invention allows the second connecting housing to rotate without the first connecting housing rotating. Therefore, when the second connecting housing is fixedly connected to the outlet end of the elbow section and the first connecting housing is fixedly connected to the pump body or pipeline, the elbow section can still rotate around its vertical axis, so that the elbow-shaped water inlet channel has a bidirectional water inlet function. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the connection between the first elbow-shaped water inlet channel and the second elbow-shaped water inlet channel of the present invention.

[0022] Figure 2This is a schematic diagram showing the connection of the first elbow-shaped water inlet channel, the second elbow-shaped water inlet channel, the servo motor, the gear reducer and the rotating assembly of the present invention.

[0023] Figure 3 This is a schematic diagram of the rotating component structure of the present invention.

[0024] Figure 4 This is a cross-sectional schematic diagram of the rotating component of the present invention.

[0025] Figure 5 This is a schematic diagram showing the connection between the servo motor and the gear reducer of the present invention.

[0026] Figure 6 This is a schematic diagram of the pump station structure of the present invention.

[0027] Figure 7 This is a schematic diagram showing the connection between the elbow section, servo motor, gear reducer, rotating assembly, and pump body of the present invention.

[0028] In the diagram: 1. First elbow-shaped water inlet channel; 2. Second elbow-shaped water inlet channel; 3. Elbow bend section; 4. Servo motor; 5. Gear reducer; 6. Rotating assembly; 601. First connecting housing; 602. Bearing; 603. Second connecting housing; 604. Driven gear; 7. Gate; 8. Water supply pipe; 9. Hoist; 10. Valve; 11. Fixed chamber; 12. Pump body; 13. Flap gate; 14. Bidirectional water inlet chamber; 15. Straight section. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example 1

[0030] like Figure 1-5 As shown, a bidirectional elbow-shaped water inlet channel includes a first elbow-shaped water inlet channel 1 and a second elbow-shaped water inlet channel 2. Both the first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2 are composed of a straight section 15 and an elbow-shaped section 3. The first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2 share a elbow-shaped section 3. The elbow-shaped section 3 is rotatably connected to the straight section 15. The ends of the elbow-shaped section 3 and the straight section 15 are both arc surfaces. The elbow-shaped section 3 is located between the first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2.

[0031] In this embodiment, the elbow section 3 rotates around its vertical axis. The first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2 are arranged opposite to each other, and the circle formed by the rotation path of the elbow section 3 coincides with the arc surface of the first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2. Therefore, the elbow section 3 can be connected to either the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2. Since the inlet directions of the first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2 are different, the bidirectional water inlet function of this elbow-shaped water inlet channel can be realized.

[0032] It also includes a rotating component 6 and a drive mechanism. The rotating component 6 is equipped with a drive mechanism. The rotating component 6 is connected to the water outlet end of the elbow bend section 3. The drive mechanism drives the rotating component 6 to rotate the elbow bend section 3 around its vertical axis.

[0033] The rotating assembly 6 includes a first connecting housing 601, a bearing 602, and a second connecting housing 603. The bearing 602 is fixedly connected inside the first connecting housing 601. The second connecting housing 603 is fixedly connected to the rotating ring of the bearing 602. A driven gear 604 is fixedly connected to the periphery of the second connecting housing 603. The water outlet end of the elbow bend section 3 is fixedly connected inside the second connecting housing 603.

[0034] The drive mechanism consists of a servo motor 4 and a gear reducer 5. The output end of the servo motor 4 is fixedly connected to the input end of the gear reducer 5. The output gear of the gear reducer 5 meshes with the driven gear 604. All parts of the gear reducer 5 and the driven gear 604 are made of stainless steel, which has good corrosion resistance to ensure the service life of both.

[0035] In this embodiment, due to the bearing 602, the second connecting housing 603 can rotate without the first connecting housing 601 rotating. Therefore, when the second connecting housing 603 is fixedly connected to the outlet end of the elbow section 3 and the first connecting housing 601 is fixedly connected to the water pump or pipeline, the elbow section 3 can still rotate around its vertical axis, realizing the bidirectional water intake function of this elbow-shaped water inlet channel. Moreover, the servo motor 4 can drive the gear reducer 5 to work. The gear reducer 5 can drive the driven gear 604 to rotate slowly through its output gear, thereby driving the second connecting housing 603 to rotate, and thus causing the elbow section 3 to rotate, so that the elbow section 3 can be connected to the arc surface of the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2 as needed. The number of rotations of the servo motor 4 can be controlled by the servo controller, which is prior art and will not be described in detail here. Example 2

[0036] like Figure 6 , 7As shown, a pump station includes a bidirectional water inlet chamber 14 and a fixed chamber 11. A first elbow-shaped water inlet channel 1 and a second elbow-shaped water inlet channel 2 are fixed in the bidirectional water inlet chamber 14 by fasteners such as bolts. A pump body 12 is fixedly installed in the fixed chamber 11. The water inlet end of the pump body 12 is located in the bidirectional water inlet chamber 14 and is fixedly connected to the first connecting housing 601.

[0037] The bidirectional water inlet chamber 14 has two inlets, through which water can enter the bidirectional water inlet chamber 14. When the pump body 12 is working, it draws water from the bidirectional water inlet chamber 14 through the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2 and discharges it into the corresponding pipe. Since the bidirectional water inlet chamber 14 is filled with water, the connection between the elbow bend section 3 and the straight section 15 is not required to reduce the difficulty of matching the elbow bend section 3 and the straight section 15.

[0038] The servo motor 4 is fixed inside the fixed chamber 11, and the gear reducer 5 is located inside the bidirectional water inlet chamber 14.

[0039] No water will remain in the fixed chamber 11, so the servo motor 4 will not be immersed in water, ensuring its service life. Furthermore, the servo motor 4 can drive the gear reducer 5 to work, thereby rotating the elbow section 3 through the driven gear 604, so that the elbow section 3 can cooperate with the straight section 15 of the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2 as required.

[0040] The inlets of the first elbow-shaped water inlet channel 1 and the second elbow-shaped water inlet channel 2 are located at the two inlets of the bidirectional water inlet chamber 14, and gates 7 are provided on the outside of the two inlets of the bidirectional water inlet chamber 14.

[0041] When water needs to be supplied using the first elbow-shaped water inlet channel 1, one of the gates 7 can close the inlet of the second elbow-shaped water inlet channel 2, ensuring that water is drawn into the pump body 12 through the first elbow-shaped water inlet channel 1. When water needs to be supplied using the second elbow-shaped water inlet channel 2, the other gate 7 can close the inlet of the first elbow-shaped water inlet channel 1, ensuring that water is drawn into the pump body 12 through the second elbow-shaped water inlet channel 2.

[0042] It also includes two gate hoists 9, the lifting ends of which are fixedly connected to two gates 7 respectively.

[0043] The lifting and lowering of the two gates 7 can be controlled by the two hoists 9, thereby controlling the flow of water into the first elbow-shaped inlet channel 1 or the second elbow-shaped inlet channel 2 respectively.

[0044] The pump body 12 has two outlets, and both outlets are fixedly connected to water pipes 8. The outlets of the two water pipes 8 are located outside the fixed chamber 11 and are each equipped with a valve 10.

[0045] The two valves 10 can control the two water pipes 8 respectively, thereby controlling whether water is discharged through a certain water pipe 8.

[0046] Both water outlets of the two water pipes 8 are equipped with flap valves 13, which can prevent external water from flowing back into the water pipes 8.

[0047] Working principle: The servo motor 4 drives the gear reducer 5 to work, and the gear reducer 5 drives the driven gear 604 to rotate slowly, thereby driving the second connecting housing 603 to rotate, which in turn causes the elbow section 3 to rotate, so that the elbow section 3 can be connected to the arc surface of the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2 as needed. When water needs to be supplied using the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2, the gate 7 at the inlet of the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2 can be raised by the hoist 9, so that water can flow into the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2. At this time, the pump body 12 works, and can draw water through the first elbow-shaped water inlet channel 1 or the second elbow-shaped water inlet channel 2 and then discharge it into the corresponding pipe, so that this pumping station can realize bidirectional water pumping operation using the elbow-shaped water inlet channel.

[0048] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent transformations or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A bidirectional elbow-shaped water inlet channel, comprising a first elbow-shaped water inlet channel (1) and a second elbow-shaped water inlet channel (2), characterized in that: The first elbow-shaped water inlet channel (1) and the second elbow-shaped water inlet channel (2) are both composed of a straight section (15) and an elbow-shaped section (3). The first elbow-shaped water inlet channel (1) and the second elbow-shaped water inlet channel (2) share an elbow-shaped section (3). The elbow-shaped section (3) is rotatably connected to the straight section (15) of the first elbow-shaped water inlet channel (1) or the second elbow-shaped water inlet channel (2). The end of the elbow-shaped section (3) connected to the straight section (15) is an arc surface. The elbow-shaped section (3) is located between the first elbow-shaped water inlet channel (1) and the second elbow-shaped water inlet channel (2). The elbow-shaped section (3) can rotate around its vertical axis, and the circle formed by the rotation path coincides with the arc surface of the first elbow-shaped water inlet channel (1) and the second elbow-shaped water inlet channel (2).

2. The bidirectional elbow-shaped water inlet channel according to claim 1, characterized in that: The straight sections (15) of the first elbow-shaped water inlet channel (1) and the second elbow-shaped water inlet channel (2) are arranged opposite to each other.

3. A bidirectional elbow-shaped water inlet channel according to any one of claims 1 or 2, characterized in that: It also includes a rotating component (6) and a driving mechanism. The rotating component (6) is provided with a driving mechanism. The rotating component (6) is connected to the water outlet end of the elbow section (3). The driving mechanism drives the rotating component (6) to drive the elbow section (3) to rotate around its vertical axis.

4. The bidirectional elbow-shaped water inlet channel according to claim 3, characterized in that: The rotating assembly (6) includes a first connecting housing (601), a bearing (602), and a second connecting housing (603). The bearing (602) is fixedly connected inside the first connecting housing (601). The rotating ring of the bearing (602) is fixedly connected to the second connecting housing (603). A driven gear (604) is fixedly connected to the periphery of the second connecting housing (603). The water outlet end of the elbow section (3) is fixedly connected inside the second connecting housing (603).

5. A bidirectional elbow-shaped water inlet channel according to claim 4, characterized in that: The drive mechanism consists of a servo motor (4) and a gear reducer (5). The output end of the servo motor (4) is fixedly connected to the input end of the gear reducer (5). The output gear of the gear reducer (5) meshes with the driven gear (604).

6. A bidirectional elbow-shaped water inlet channel according to claim 5, characterized in that: Both the gear reducer (5) and the driven gear (604) are made of stainless steel.

7. A bidirectional pumping station, characterized in that: It includes a bidirectional water inlet chamber (14) and a fixed chamber (11). The bidirectional water inlet chamber (14) is provided with a bidirectional elbow-shaped water inlet channel as described in any one of claims 4-6, and the two inlets of the bidirectional elbow-shaped water inlet channel are respectively located at the two inlets of the bidirectional water inlet chamber (14). A pump body (12) is fixedly installed in the fixed chamber (11). The water inlet end of the pump body (12) is located in the bidirectional water inlet chamber (14) and is fixedly connected to the first connecting housing (601).

8. A bidirectional pumping station according to claim 7, characterized in that: The servo motor (4) is fixed in the fixed chamber (11), and the gear reducer (5) is located in the bidirectional water inlet chamber (14).

9. A bidirectional pumping station according to claim 7, characterized in that: The two inlets of the bidirectional water inlet chamber (14) are each equipped with a gate (7), and a gate opener (9) is connected to the gate (7).

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