CN-116837790-B - Two-way elbow formula runner and pump station of intaking

Abstract

The invention discloses a two-way elbow type water inlet flow passage and a pump station, which comprises a first elbow type water inlet flow passage and a second elbow type water inlet flow passage, wherein the first elbow type water inlet flow passage and the second elbow type water inlet flow passage are respectively composed of a straight line section and an elbow bend section, the first elbow type water inlet flow passage and the second elbow type water inlet flow passage share one elbow bend section, the elbow bend sections are rotationally connected with the straight line section, the end parts of the elbow bend sections connected with the straight line section are all arc surfaces, the elbow bend sections rotate around the vertical axis of the elbow bend sections, and the circle formed by the rotation paths is overlapped with the arc surfaces of the first elbow type water inlet flow passage and the second elbow type water inlet flow passage, so that the elbow bend sections can be selectively connected with the first elbow type water inlet flow passage or the second elbow type water inlet flow passage, and the water inlets of the first elbow type water inlet flow passage and the second elbow type water inlet flow passage are different, and the two-way water inlet function of the elbow type water inlet flow passage can be realized, and the two-way water inlet pump station can be adapted.

Inventors

• XU PENGFEI
• CHEN DONGDONG
• LI YANLIANG
• XING JIE
• BAI CHUNYU
• YAN BAIYANG
• CHEN LI
• YU MENGYUAN
• WANG TINGYONG
• XIE YAJUN
• WANG LI
• LI TIE
• WANG XU
• LI MANG
• GUO RUI
• LIN XU

Assignees

• 淮安市水利勘测设计研究院有限公司

Dates

Publication Date

20260505

Application Date

20230726

Claims (9)

1. 1. The two-way elbow type water inlet flow passage comprises a first elbow type water inlet flow passage (1) and a second elbow type water inlet flow passage (2), and is characterized in that the first elbow type water inlet flow passage (1) and the second elbow type water inlet flow passage (2) are composed of a straight line section (15) and an elbow bend section (3), the first elbow type water inlet flow passage (1) and the second elbow type water inlet flow passage (2) share one elbow bend section (3), the elbow bend section (3) is rotationally connected with the straight line section (15) of the first elbow type water inlet flow passage (1) or the second elbow type water inlet flow passage (2), the end part of the elbow bend section (3) connected with the straight line section (15) is an arc surface, the elbow bend section (3) is arranged between the first elbow type water inlet flow passage (1) and the second elbow type water inlet flow passage (2), the elbow bend section (3) can rotate around the vertical axis, and the arc surface of the elbow bend section (3) coincides with the elbow bend section (2) formed by a rotational path.
2. 2. A two-way elbow-type water inlet channel according to claim 1, wherein the straight sections (15) of the first elbow-type water inlet channel (1) and the second elbow-type water inlet channel (2) are arranged opposite to each other.
3. 3. A bidirectional elbow type water inlet flow passage according to any one of claims 1 or 2, further comprising a rotating assembly (6) and a driving mechanism, wherein the driving mechanism is arranged on the rotating assembly (6), the rotating assembly (6) is connected with the water outlet end of the elbow section (3), and the driving mechanism drives the rotating assembly (6) to drive the elbow section (3) to rotate around the vertical axis of the elbow section.
4. 4. The bidirectional elbow type water inlet flow passage according to claim 3, wherein the rotating assembly (6) comprises a first connecting shell (601), a bearing (602) and a second connecting shell (603), the bearing (602) is fixedly connected in the first connecting shell (601), the second connecting shell (603) is fixedly connected with a rotating ring of the bearing (602), a driven gear (604) is fixedly connected to the periphery of the second connecting shell (603), and the water outlet end of the elbow section (3) is fixedly connected in the second connecting shell (603).
5. 5. The bidirectional elbow type water inlet flow passage of claim 4, wherein the driving mechanism consists of a servo motor (4) and a gear reduction box (5), the output end of the servo motor (4) is fixedly connected with the input end of the gear reduction box (5), and an output gear of the gear reduction box (5) is meshed with a driven gear (604).
6. 6. A two-way elbow type water inlet channel according to claim 5, wherein the gear reduction box (5) and the driven gear (604) are made of stainless steel materials.
7. 7. The bidirectional pump station is characterized by comprising a bidirectional water inlet chamber (14) and a fixed chamber (11), wherein the bidirectional water inlet chamber (14) is internally provided with the bidirectional elbow type water inlet flow passage according to any one of claims 4-6, two water inlets of the bidirectional elbow type water inlet flow passage are respectively positioned at two water inlets of the bidirectional water inlet chamber (14), a pump body (12) is fixedly arranged in the fixed chamber (11), and a water inlet end of the pump body (12) is positioned in the bidirectional water inlet chamber (14) and is fixedly connected with the first connecting shell (601).
8. 8. A bi-directional pump station according to claim 7, characterized in that the servo motor (4) is fixed in a fixed chamber (11), and the gear reduction box (5) is positioned in a bi-directional water inlet chamber (14).
9. 9. A bidirectional pump station as set forth in claim 7 wherein the outer sides of the two water inlets of the bidirectional water inlet chamber (14) are provided with shutters (7), and the shutters (7) are connected with a hoist (9).

Description

Two-way elbow formula runner and pump station of intaking Technical Field The invention relates to the technical field of water conservancy, in particular to a bidirectional elbow type water inlet flow passage and a pump station. Background The elbow type water inlet flow channel is a common fluid mechanical component for guiding fluid to perform bending motion in a pipeline, and is generally composed of a straight line section and an elbow bending section to form a 90-degree bend, the elbow type water inlet flow channel can reduce resistance and energy loss generated when the fluid flows through the elbow bending section, can effectively change the direction and speed of water flow, and the water flow can rotate when passing through the elbow bending section, so that vortex and turbulence of the water flow are reduced, the distribution uniformity of the fluid in the flow channel can be improved, the flow velocity of the fluid in the pipeline system can be ensured to be relatively consistent, the overhigh or overlow flow velocity in certain areas is avoided, the local resistance is reduced, and the efficiency of the whole system is improved. The elbow type water inlet flow passage is proved by a plurality of actual engineering, has excellent hydraulic performance, is also a pump station water inlet flow passage recommended by pump station design standards, is a single passage, can only conduct water diversion operation from one direction, is generally used for unidirectional pump stations, is mainly used for other types of water inlet flow passages on bidirectional pump stations, such as a box type water inlet flow passage, has the advantages of simple construction and the like, but often causes water inlet flow state disorder of a water pump, large hydraulic loss, low operation efficiency of the device, easily causes cavitation, vibration and the like of the water pump, even causes water pump damage, motor overload shutdown, and influences engineering operation safety. Therefore, a bidirectional elbow type water inlet flow channel is needed to be adapted to a bidirectional pump station so as to ensure safe, stable and efficient operation of the bidirectional pump station. Disclosure of Invention The invention aims to solve the technical problem of providing a bidirectional elbow type water inlet flow passage and a pump station, wherein the elbow type water inlet flow passage is designed to realize bidirectional water inlet operation of the elbow type water inlet flow passage, and the elbow type water inlet flow can be applied to the bidirectional pump station so as to realize bidirectional pump water operation of the bidirectional pump station by utilizing the elbow type water inlet flow passage. The invention provides a bidirectional elbow type water inlet flow passage, which comprises a first elbow type water inlet flow passage and a second elbow type water inlet flow passage, wherein the first elbow type water inlet flow passage and the second elbow type water inlet flow passage are both composed of a straight line section and an elbow bending section, the first elbow type water inlet flow passage and the second elbow type water inlet flow passage share one elbow bending section, the elbow bending section is rotationally connected with the straight line section of the first elbow type water inlet flow passage or the second elbow type water inlet flow passage, and the end part of the elbow bending section connected with the straight line section is an arc surface. Further, the elbow section sets up in the two middles of first elbow type water inlet channel and second elbow type water inlet channel, elbow section can rotate around its vertical axis, and the circle that the rotation route formed coincides with the circular arc face of first elbow type water inlet channel and second elbow type water inlet channel. Further, the straight line sections of the first elbow type water inlet flow passage and the second elbow type water inlet flow passage are arranged oppositely. Further, the elbow bending section water outlet end connecting device further comprises a rotating assembly and a driving mechanism, wherein the driving mechanism is arranged on the rotating assembly, the rotating assembly is connected with the elbow bending section water outlet end, and the driving mechanism drives the rotating assembly to drive the elbow bending section to rotate around the vertical axis of the elbow bending section. Preferably, the rotating assembly comprises a first connecting shell, a bearing and a second connecting shell, wherein the bearing is fixedly connected in the first connecting shell, the second connecting shell is fixedly connected with a rotating ring of the bearing, a driven gear is fixedly connected on the periphery of the second connecting shell, and the water outlet end of the elbow section is fixedly connected in the second connecting shell. Preferably, the driving mechanism consists of a servo motor a