Bailer-type long-shaft pump and application thereof

Abstract

Disclosed are a bailer-type long-shaft pump (100) and an associated pump station (200). The long-shaft pump comprises a bailer vehicle (110), a long shaft (120), a bearing (130), a transmission device (140) and an electric motor (150). One end of the long shaft (120) successively passes through the bearing (130) and the transmission device (140) so as to be in transmission connection with a drive shaft of the electric motor (150). The pump station (200) comprises a pump station foundation (210), several equipment rooms (231) transversely distributed at intervals and constructed on the pump station foundation (210), and two ends of the long shaft (120) are supported on side walls of two adjacent equipment rooms. The bailer-type long-shaft pump achieve large water flow and low lift, the pump station is space-saving, has shorter construction cycle, and reduces investment and operation costs.

Claims

1. A pump station (200) using a bailer-containing long-shaft pump (100), comprising: a plurality of bailer vehicles (110); a long shaft (120); a bearing (130); a transmission device (140), further comprising a planetary gearbox (141), an orthogonal shaft gearbox (142) and a frequency converter (143); an electric motor (150); wherein one end of the long shaft (120) is in transmission connection with a drive shaft of the electric motor (150); wherein the plurality of bailer vehicles (110) are provided with a cylindrical base (112) configured to encase the long shaft (120), and at least three blades (111), wherein the blades (111) are distributed on a surface of the cylindrical base (112) in an annular array radially extending from a center of the long shaft (120); wherein adjacent blades (111) and the surface of the cylindrical base (112) enclose a space to form a bailing bucket capable of bailing water from a lower water level of a water channel to a higher water level of the water channel; wherein the plurality of bailer vehicles (110) are sequentially affixed to the long shaft (120) via the cylindrical base (112), and a pump station foundation (210) that comprises a drainage section (240), a pumping section (230) and a diversion section (220) sequentially installed along the flow direction of the water channel, wherein the pumping section (230) is provided with a plurality of equipment rooms (231) distributed traversely across the water channel, wherein the equipment rooms (231) are constructed on top of the pump station foundation (210), and divide the pumping section (230) into a plurality of pumping areas (232), wherein one end of the pumping areas (232) is a water supply end (232a) and another end of the pumping areas (232) is a water outlet end (232b), wherein the water supply end (232a) and the water outlet end (232b) are divided with a partition, wherein at least one of the pumping areas (232) is provided with the bailer-containing long-shaft pump (100), wherein the long shaft (120) of the bailer-containing long-shaft pump (100) and the bailer vehicle (110) of the bailer-containing long-shaft pump (100) are located in the water supply end (232a), wherein two ends of the long shaft (120) are supported on sidewalls between two adjacent equipment rooms (231), and wherein one end of the long shaft (120) is connected to the electric motor (150) through the transmission device (140) in the equipment rooms (231).

2. The pump station (200) according to claim 1, wherein a recessed area (234) is provided at part of the pump station foundation (210) that is directly below the plurality of bailer vehicles (110), wherein the recessed area (234) is arc-shaped and encompasses a bottom of the bailer vehicles (110).

3. The pump station (200) according to claim 1, wherein the plurality of the equipment rooms (231) are distributed at equal distance to each other.

4. The pump station (200) according to claim 1, wherein each of the pumping areas (232) is provided with a bailer-containing long-shaft pump (100), and the bailer-containing long-shaft pumps (100) are arrayed traversing the water channel either in a straight line or is parallel but staggered.

5. The pump station (200) according to claim 1, further comprising a pedestrian bridge that connects two adjacent equipment rooms (231).

6. The pump station (200) according to claim 1, further comprising a sedimentation tank (221) near the water supply end (232a) and another sedimentation tank (241) near the water outlet end (232b).

7. The pump station (200) according to claim 1, further comprising wing walls on both sides of the drainage section (240) and the diversion section (220).

8. The pump station (200) using the bailer-containing long-shaft pump (100) of claim 1 wherein the each of the plurality of the bailer vehicles (110) has equal numbers of blades (111).

9. The pump station (200) using the bailer-containing long-shaft pump (100) of claim 1 wherein the blades from any two neighboring bailer vehicles (110) are staggered and do not reside on the same plane.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention may best be understood by referring to the following description and accompanying drawings that are used to illustrate embodiments of the invention. The invention is illustrated by ways of example in the embodiments and it not limited in the figures of the accompanying drawings, in which like references indicates similar elements

(2) FIG. 1 is a schematic diagram showing the structure of a bailer-type long-shaft pump, in accordance to one embodiment.

(3) FIG. 2 is cross-sectional view of a bailer-type long-shaft pump, in accordance to one embodiment.

(4) FIG. 3 is cross-sectional view of a bailer-type long-shaft pump, in accordance to one embodiment.

(5) FIG. 4 is general plan view of a pump station using the bailer-type long-shaft pump, in accordance to one embodiment.

(6) FIG. 5 is a longitudinal sectional view of a pump station using the bailer-type long-shaft pump, in accordance to one embodiment.

(7) FIG. 6 is a plan sectional view of a pump station using the bailer-type long-shaft pump, in accordance to one embodiment.

(8) The numbers and corresponding names in the figure are:

(9) TABLE-US-00001 100. bailer-type long-shaft pump; 110. plurality of bailer vehicles; 111. blades; 112. cylindrical base; 120. long shaft; 130. bearing; 140. transmission device; 141. planetary gearbox; 142. orthogonal shaft gearbox; 143. frequency converter; 150. electric motor; 200. pump station; 210. pump station foundation; 220. diversion section; 221. sedimentation tank; 230. pumping section; 231. equipment room; 232. pumping area; 232a. water supply end; 232b. water outlet end; 233. pedestrian bridge; 234. recessed area; 240. drainage section; 241. sedimentation tank.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(10) As shown in FIGS. 1-3, a bailer-type long-shaft pump (100) is disclosed. The bailer-type long-shaft pump (100) comprises a plurality of bailer vehicles (110), a long shaft (120), a bearing (130); a transmission device (140), and an electric motor (150); the bearing (130) is installed on both ends of the long shaft (120); the transmission device comprises a planetary gearbox (141), an orthogonal shaft gearbox (142) and a frequency converter (143); one end of the long shaft (120) successively passes through the bearing (130), the planetary gearbox (141), the orthogonal shaft gearbox (142) and the frequency converter (143), so as to be in transmission connection with a drive shaft of the electric motor (150); the bailer vehicle (110) is provided with a cylindrical base (112) that encases and affixes to the long shaft (120), and at least three blades (111); the blades (111) are distributed on the surface of the cylindrical base (112) in an annular array radially extending from the center of the long shaft (120); the blades (111) have flat surfaces as shown in FIG. 2, or curved surfaces as shown in FIG. 3; two adjacent blades (111) and the surface of the cylindrical base (112) enclose a space to form a bailing bucket capable of bailing water from a lower water level of a water channel to a higher water level of the water channel; in some embodiments, there are a plurality of bailer vehicles (110), the plurality of bailer vehicles (110) are sequentially affixed to the long shaft (120) in tandem via the cylindrical base (112); in some embodiments, each of the plurality of the bailer vehicles (110) has equal numbers of blades; in some embodiments, the blades from any two neighboring bailer vehicles (110) are staggered so that the two neighboring bailer vehicles forms an angle and do not reside on the same plane.

(11) As shown in FIGS. 4-6A, a pump station (200) using the bailer-type long-shaft pump (100) is disclosed. The pump station (200) comprises a pump station foundation (210), which in turn comprises a drainage section (240), a pumping section (230) and a diversion section (220) sequentially installed along the flow direction of the water channel; the pumping section (230) is provided with a plurality of equipment rooms (231) distributed traversely across the water channel at an equal distance; the equipment rooms (231) are constructed on top of the pump station foundation (210); the equipment rooms (231) divide the pumping section (230) into a plurality of pumping areas (232); a pedestrian bridge (233) is provided to connect two adjacent equipment rooms (231); one end of the pumping area (232) is a water supply end (232a), the other end of the pumping area (232) is a water outlet end (232b), and the water supply end (232a) and the water outlet end (232b) are divided with a partition; the pumping areas (232) is provided with the bailer-type long-shaft pump (100); the long shaft (120) of the bailer-type long-shaft pump (100) and the bailer vehicle (110) of the bailer-type long-shaft pump (100) are located in the water supply end (232a); the two ends of the long shaft (120) are rotatably installed or supported on the sidewalls between two adjacent equipment rooms (231); one end of the long shaft (120) is connected to the electric motor (150) through the transmission device (140) in the equipment room (231); the bailer-type long-shaft pumps (100) are arrayed traversing the water channel either in a straight line or is parallel but staggered; a recessed area (234) is provided at part of the pump station foundation (210) that is direct below the bailer vehicle (110); the recessed area (234) is arc-shaped and encompasses bottom of the bailer vehicle (110); a sedimentation tank (221) is provided near the water supply end (232a) close to the diversion section (220), and another sedimentation tank (241) is provided near the water outlet end (232b) closes to drainage section (240); in some embodiments, wing walls are provided on both sides of the drainage section (240) and the diversion section (220).

(12) The sequence of operation for the bailer-type long-shaft pump (100) and the pump station (200) disclosed in the present disclosure is as follows: the electric motor (150) is started first; after deceleration via the inverter (143), the orthogonal gear box (142), and the planetary gear box (141), the electric motor (150) drives the long shaft (120) and the long the bailer vehicles (110) to rotate; through the effects of blades (111), water that enters the diversion section (220) is lifted from the water supply end (232a) and placed in the water outlet end (232b), and flows out through the drainage section (240).

(13) The present invention discloses a system in which the equipment rooms and the bailer-type long-shaft pump are installed at the pumping section, the transmission device and the electric motors are installed within the equipment rooms. As a result, main and auxiliary workshops and maintenance rooms are not required, and no pump room is required above the ground, which reduces space requirement, shortens the construction period of the pumping station, and reduces construction costs. The bailer-type long-shaft pump also increases ascetic appeal of the pump station. In addition, by connecting the electric motor to the transmission device comprising the planetary gearbox, the orthogonal gearbox, and the frequency converter, the disclosed design effectively reducing the starting torque and greatly increasing the reduction ratio. The disclosed design meets the needs of low speed and high torque characteristic of a bailer; meanwhile, the disclosed design also ensures the smooth operation of the pumping station and improves vibration resistance and shock resistance.

(14) While the invention has been particularly shown and described as referenced to the embodiments thereof, those skilled in the art will understand that the foregoing and other changes in form and detail may be made therein without departing from the spirit and scope of the invention. Various changes, variation, modification and permutation of the above-mentioned concepts, without input deemed creative for those ordinary persons skilled in the art are within the protection scope of the present invention.