Energy-saving straight pipe type water outlet runner device

Abstract

The invention relates to the technical field of water conservancy, municipal administration and traffic, and discloses an energy-saving straight pipe type water outlet runner device which is applied to a pump station, especially in small and medium-sized pump station engineering, and comprises a runner, a water pump gate valve and a flap valve structure, the flap valve structure is arranged at the water outlet end of the runner, the water pump gate valve is connected to a water pump water outlet pipe, and the water pump gate valve is connected to the water pump water outlet pipe. The water pump water outlet pipe is connected with the flow channel through a rotating mechanism, and the rotating mechanism drives the flow channel and drives a flap valve structure arranged on the flow channel to rotate. Compared with the prior art, the rotating mechanism is designed to control the runner to rotate, the flap valve structure with stable water outlet is inverted, the pump station can eliminate additional loss increased by a traditional flap valve structure, the efficiency of the pump station is improved, the operation cost of the pump station is reduced, and energy conservation and emission reduction are remarkable.

Description

Technical Field

[0001] The invention relates to the fields of water conservancy, municipal administration and traffic technology, and in particular to an energy-saving straight-tube water outlet flow channel device. Background Art

[0002] The outlet flow channel refers to the flow channel from the outlet of the pump guide vane to the outlet pool, which guides the water flow to spread evenly and orderly to the inlet pool. The straight pipe outlet flow channel is a commonly used outlet form for medium and large pumping stations.

[0003] When the pump station unit is shut down, the water flow must be quickly cut off so that the upstream water cannot flow back to protect the unit safety and avoid accidents. The main ways to cut off the flow of the straight pipe outlet flow channel are fast gate cut-off and flap gate cut-off. Fast gate cut-off is generally used for large pump stations, with high construction and maintenance costs. From the actual operation, compared with flap gate cut-off, the opening and closing speed of the fast gate cut-off system is slow, and it is impossible to quickly cut off the flow. Small and medium-sized pump stations generally use flap gate cut-off. The flap gate cut-off has a simple structure, high reliability, and low cost. It is currently the main way to cut off the flow of small and medium-sized pump stations. However, limited by the working principle that the flap gate relies on its own gravity to cut off the flow, the water pump needs to continue to overcome the gravity of the flap gate to work when it is draining water normally, which results in a large capacity loss. In addition, the flap gate often fails to reach the designed opening angle in actual engineering operation, which will further affect the operation efficiency of the pump station. Many small irrigation pump stations have their flap gates removed artificially, which increases the risk of reverse rotation of the pump motor and affects the service life of the water machine and engineering safety. Summary of the invention

[0004] Purpose of the invention: In view of the problems pointed out in the background technology, the present invention provides an energy-saving straight-tube water outlet flow channel device, which is used in pump stations, especially in small and medium-sized pump station projects. It not only has the simple and reliable flow-breaking function of a flap gate, but also enables the pump station to eliminate the additional loss of the traditional flap gate structure during normal water discharge, thereby improving the efficiency of the pump station, reducing the operating costs of the pump station, and significantly saving energy and reducing emissions.

[0005] Technical solution: The present invention discloses an energy-saving straight-tube water outlet flow channel device, comprising a flow channel, a water pump gate valve and a flap door structure. The flap door structure is arranged at the water outlet end of the flow channel, and is used to cut off the flow when the unit is shut down. The water pump gate valve is connected to the water pump outlet pipe, and is used to control the water flow. It is characterized in that the water pump outlet pipe and the flow channel are connected by a rotating mechanism, and the rotating mechanism drives the flow channel and drives the flap door structure arranged thereon to rotate.

[0006] Furthermore, the rotating mechanism includes an inner sleeve, an outer sleeve and a driving mechanism, the inner sleeve is fixedly connected to the flow channel, the outer sleeve is fixedly connected to the water pump outlet pipe, the inner sleeve is rotatably connected to the outer sleeve and the two are in rotational contact, and a rubber strip is provided between the inner sleeve and the outer sleeve, and the inner sleeve driven by the driving mechanism rotates inside the outer sleeve.

[0007] Furthermore, the driving mechanism includes a gear ring arranged on the circumference of the outer wall of the inner sleeve and a gear meshing with the gear ring. The output shaft of the gear is connected to a linkage belt through a first transmission wheel. The other end of the linkage belt is transmitted through a second transmission wheel, and the second transmission wheel is connected to a reduction motor.

[0008] Furthermore, a guide column is provided on the outer sleeve, and the output shaft passes through the guide column and is rotatably connected.

[0009] Furthermore, a limiting mechanism is provided between the inner sleeve and the outer sleeve, and the limiting mechanism includes a raised step arranged along the outer edge of the inner sleeve and a groove ring arranged along the inner ring of the outer sleeve and matching the step. After the step and the groove ring are matched and plugged in, they are fixed by a flange.

[0010] Furthermore, the flap door structure includes a flap door side frame fixed to the flow channel, and the upper end of the flap door side frame is rotatably connected to a flap door panel.

[0011] Furthermore, a side surface of the flap door side frame away from the flow channel is an inclined surface, and an upper end is inclined toward a direction close to the flow channel, and an inclination angle is 5 to 30 degrees.

[0012] Furthermore, it also includes a flap door support assembly, which is arranged below the flap door structure, including a flap door support base, an arc-shaped slip ring groove arranged on the flap door support base, a plurality of ball structures are arranged at intervals in the slip ring groove, and a slip ring is arranged on the outer side of the flap door side frame, the slip ring and the slip ring groove are in sliding matching contact, and the slip ring is embedded in the slip ring groove to constrain the axial displacement of the flow channel and the flap door structure.

[0013] Furthermore, a flap door panel limiting piece is also provided on the flap door side frame, and the flap door panel limiting piece limits the opening angle of the flap door panel.

[0014] Furthermore, a plurality of sliding ring fixing ribs are arranged at intervals between the sliding ring and the flap door side frame.

[0015] Beneficial Effects

[0016] 1. The energy-saving straight pipe water outlet flow channel device designed by the present invention can not only quickly cut off the flow through the flap door, but also completely eliminate the extra energy loss caused by the flap door through the reasonable design of the device, thereby improving the efficiency of the pump station. The energy-saving straight pipe water outlet flow channel device designed by the present invention can be assembled, and the pump station can be selected according to the actual operation situation. It is suitable for new pump station projects and pump station renovation projects.

[0017] The present invention controls the rotation angle of the flow channel by arranging a rotating mechanism between the water pump outlet pipe and the flow channel. In normal use, after the flow channel rotates 180 degrees, the flap panel rotates downward, and the flap panel is inverted and located between the lower edge of the flow channel outlet and the bottom plate of the pump station, so as to avoid the chaotic water flow at the bottom of the flow channel outlet, improve the water outlet efficiency of the flow channel, and reduce energy loss during the water outlet process. Before the water pump needs to be shut down, the rotating mechanism rotates 180 degrees, and the flap panel rotates upward to return to the original position. After the water outlet is stable, the water backflow will not occur when the water pump is shut down, thereby protecting the pump station unit.

[0018] 2. The rotating mechanism of the present invention is directly realized by two sleeves connected together. One side of the inner sleeve is connected to the flow channel, and the other side of the outer sleeve is connected to the water pump outlet pipe. The two can be connected and rotated at the same time. The inlet and outlet connection sleeve has a simple structure, high reliability and low investment. In addition, the present invention is provided with a limiting mechanism. The inner and outer sleeves are limited by a step structure. During installation, the flange is used for limiting. The flange is directly set vertically and fixed with bolts to the outer sleeve ring. The inner and outer sleeves will not deviate during the rotation process under the limit of the flange.

[0019] 3. In order to realize the rotation between the sleeves, the present invention drives the belt to rotate the gear by driving the transmission wheel through the motor, and the gear rotation drives the gear ring meshing with the inner sleeve to rotate, thereby realizing the rotation of the entire flow channel. Because the water outlet flow channel is located underwater, it is not necessary to consider the waterproof work of the inner and outer sleeves, and a rubber strip can be set between the two to play a certain waterproof role.

[0020] 4. The flap door side frame designed in the present invention is inclined, so that when starting to work, the flap door panel is pushed open by the water flow, overcoming the gravity of the flap door to do work. If the flap door panel is stopped, it can be completely attached to the flap door side frame under the action of gravity, so as to achieve rapid water cut-off.

[0021] 5. During the rotation of the flow channel, a flap door support assembly is arranged under the flap door side frame to support the entire flap door structure. The designed slip ring and the slip ring groove are in sliding matching contact to play a sliding and limiting role. During the support process, the friction between the two is reduced by the ball structure.

[0022] 6. The present invention is designed with a flap door panel limit plate. When the machine is turned on and starts working, the flap door panel will not be flipped upward due to a large water flow. When the rotating mechanism rotates the flap door panel downward, the flap door panel limit plate limits the flap door panel. The flap door panel will also be limited by the flap door panel limit plate to prevent the flap door panel from being tilted downward too much as a whole. If the flap door panel is tilted downward too much, when the machine is stopped and rotated to its original position, the flap door panel is easy to fold backward, which is not conducive to quickly cutting off the water flow when the machine is stopped.

[0023] 7. A plurality of sliding ring fixing ribs are arranged at intervals between the sliding ring and the flap door side frame. The sliding ring fixing ribs are used to connect the flap door side frame and the sliding ring, so as to increase the connection strength between the sliding ring and the flap door side frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the energy-saving tubular water outlet flow channel of the present invention when it is not working; Figure 2 This is a structural diagram of the door panel at the top when the energy-saving tubular water outlet channel of the present invention starts to work; Figure 3 This is a structural diagram of the energy-saving tubular water outlet flow channel of the present invention, after the door plate rotates to the bottom after working stably; Figure 4 It is a structural diagram of a flap door of the energy-saving tubular water outlet flow channel of the present invention; Figure 5 This is a structural diagram of the energy-saving tubular water outlet flow channel rotating mechanism of the present invention; Figure 6 This is a disassembled structural diagram of the energy-saving tubular water outlet flow channel rotating mechanism of the present invention; Figure 7 It is a cross-sectional view of the energy-saving tubular water outlet flow channel rotating mechanism of the present invention; Figure 8 It is a structural diagram of the energy-saving tubular water outlet flow channel flap door support assembly of the present invention.

[0025] Among them, 1-flow channel, 2-water pump gate valve, 3-flap door structure, 301-flap door side frame, 302-flap door panel, 303-flap door support base, 304-slip ring groove, 305-ball structure, 306-slip ring, 307-flap door panel limit plate, 308-slip ring fixing rib, 309-flap door rotating pin, 4-water pump outlet pipe, 5-rotating mechanism, 501-inner sleeve, 502-outer sleeve, 503-gear ring, 504-gear, 505-output shaft, 506-first transmission wheel, 507-second transmission wheel, 508-linkage belt, 509-reduction motor, 510-guide column, 511-rubber strip, 512-rubber strip groove, 513-step, 514-groove ring, 515-flange, 6-pump station bottom plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] The present invention discloses an energy-saving straight pipe water outlet flow channel device, see Figures 1 to 8 , including a flow channel 1, a water pump gate valve 2 and a flap door structure 3, the flap door structure 3 is arranged at the water outlet end of the flow channel 1, and the water pump gate valve 2 is connected to the water pump outlet pipe 4, the water pump outlet pipe 4 and the flow channel 1 are connected through a rotating mechanism 5, the rotating mechanism 5 drives the flow channel 1 and drives the flap door structure 3 arranged thereon to rotate.

[0028] The rotating mechanism 5 includes an inner sleeve 501, an outer sleeve 502 and a driving mechanism. The inner sleeve 501 is fixedly connected to the flow channel 1, and the outer sleeve 502 is fixedly connected to the water pump outlet pipe 4. The inner sleeve 501 is rotatably connected to the outer sleeve 502 and the two are in rotational contact. A rubber strip 511 is further provided between the inner sleeve 501 and the outer sleeve 502. A rubber strip groove 512 is provided on the inner wall of the outer sleeve 502, and the rubber strip 511 is provided in the rubber strip groove 512. The driving mechanism drives the inner sleeve 501 to rotate in the outer sleeve 502.

[0029] The driving mechanism includes a gear ring 503 arranged on the circumference of the outer wall of the inner sleeve 501, a gear 504 meshing with the gear ring 503, an output shaft 505 of the gear 504 is connected to a linkage belt through a first transmission wheel 506, the other end of the linkage belt 508 is driven through a second transmission wheel 507, and the second transmission wheel 507 is connected to a reduction motor 509. A guide column 510 is arranged on the outer sleeve 502, and the output shaft 505 penetrates the guide column 510 and is rotatably connected.

[0030] A limiting mechanism is also provided between the inner sleeve 501 and the outer sleeve 502. The limiting mechanism includes a raised step 513 provided along the outer edge of the inner sleeve 501 and a groove ring 514 provided along the inner ring of the outer sleeve 502 and matching with the step 513. The step 513 and the groove ring 514 are matched and plugged together and fixed by a flange 515. Figure 7 The flange 515 is vertically arranged and fixedly connected to the ring edge of the outer sleeve 502 by bolts. A space matching the step 513 is formed between the flange 515 and the groove ring 514. The step 513 of the inner sleeve 501 is directly limited by the flange 515 and the groove ring 514 and can only be rotated but not detached, which plays a limiting role. When disassembling and repairing, you only need to remove the flange 515.

[0031] The flap door structure 3 includes a flap door side frame 301 fixed to the flow channel, and the flap door panel 302 is rotatably connected to the upper end of the flap door side frame 301. In this embodiment, the flap door panel 302 is rotatably connected to the flap door side frame 301 through a flap door rotating pin 309. The side of the flap door side frame 301 away from the flow channel 1 is an inclined surface, and the upper end is inclined toward the flow channel 1, and the inclination angle is 5 to 30 degrees.

[0032] The flap door structure 3 also includes a flap door support assembly, which is arranged below the flap door structure 3, including a flap door support base 303, and an arc-shaped slip ring groove 304 arranged on the flap door support base 303. The flap door support base 303 is arranged on the water pump bottom plate 6. The slip ring groove 304 is concave inward, and a plurality of ball structures 305 are arranged in intervals in the slip ring groove 304. A slip ring 306 is arranged on the outer side of the flap door side frame 301, and a plurality of slip ring fixing ribs 308 are arranged between the slip ring 306 and the flap door side frame 301. In this embodiment, the slip ring 306 is circular. The slip ring 306 and the slip ring groove 304 are in sliding matching contact, and the slip ring 306 is embedded in the slip ring groove 304 to restrict the axial displacement of the flow channel 1 and the flap door structure 3. A flap door panel limiter 307 is also arranged on the flap door side frame 301, and the flap door panel limiter 307 limits the opening angle of the flap door panel 302.

[0033] Working principle: 1. When the water pump is shut down, see Figure 1 , prepare to start, open the water pump gate valve 2.

[0034] 2. The water pump is turned on to discharge water, and the flap door panel 302 is pushed open by the water flow, overcoming the gravity of the flap door panel 302 to perform work.

[0035] 3. After the water pump runs stably, the water outlet channel 1 is rotated, the reduction motor 509 is turned on, the flap door panel 302 is inverted, and water is freely discharged from the outlet of the channel 1.

[0036] 4. When the water pump is ready to stop, the flap panel 302 is returned to its original position and the flap panel 302 is placed upright.

[0037] 5. Wait for the water output from the pump to stabilize and then turn off the pump.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving straight pipe water outlet flow channel device, comprising a flow channel (1), a water pump gate valve (2) and a flap door structure (3), wherein the flap door structure (3) is arranged at the water outlet end of the flow channel (1), and the water pump gate valve (2) is connected to the water pump outlet pipe (4), characterized in that: The water pump outlet pipe (4) is connected to the flow channel (1) via a rotating mechanism (5), and the rotating mechanism (5) drives the flow channel (1) and drives the flap door structure (3) thereon to rotate.

2. The energy-saving straight pipe water outlet channel device according to claim 1, characterized in that: The rotating mechanism (5) comprises an inner sleeve (501), an outer sleeve (502) and a driving mechanism; the inner sleeve (501) is fixedly connected to the flow channel (1); the outer sleeve (502) is fixedly connected to the water pump outlet pipe (4); the inner sleeve (501) is rotatably connected to the outer sleeve (502) and the two are in rotational contact; a rubber strip is provided between the inner sleeve and the outer sleeve; and the driving mechanism drives the inner sleeve (501) to rotate inside the outer sleeve (502).

3. The energy-saving straight pipe water outlet channel device according to claim 2, characterized in that: The driving mechanism comprises a gear ring (503) arranged on the circumference of the outer wall of the inner sleeve (501), and a gear (504) meshing with the gear ring (503); an output shaft (505) of the gear (504) is connected to a linkage belt via a first transmission wheel (506); the other end of the linkage belt (508) is driven via a second transmission wheel (507); and the second transmission wheel (507) is connected to a reduction motor (509).

4. The energy-saving straight pipe water outlet channel device according to claim 3, characterized in that: A guide column (510) is provided on the outer sleeve (502), and the output shaft (505) passes through the guide column (510) for rotational connection.

5. The energy-saving straight pipe water outlet channel device according to claim 2, characterized in that: A limiting mechanism is also provided between the inner sleeve (501) and the outer sleeve (502), the limiting mechanism comprising a raised step (513) provided along the outer edge of the inner sleeve (501), and a groove ring (514) provided along the inner ring of the outer sleeve (502) and matching with the step (513); the step (513) and the groove ring (514) are matched and plugged together and fixed in position by a flange (515).

6. The energy-saving straight pipe water outlet channel device according to claim 1, characterized in that: The flap door structure (3) comprises a flap door side frame (301) fixed to the flow channel, and the upper end of the flap door side frame (301) is rotatably connected to a flap door panel (302).

7. An energy-saving straight pipe water outlet channel device according to claim 6, characterized in that: The side surface of the flap door side frame (301) away from the flow channel (1) is an inclined surface, and the upper end is inclined in a direction close to the flow channel (1), with an inclination angle of 5 to 30 degrees.

8. The energy-saving straight pipe water outlet channel device according to claim 6, characterized in that: It also includes a flap door support assembly, which is arranged below the flap door structure (3) and includes a flap door support base (303), an arc-shaped slip ring groove (304) arranged on the flap door support base (303), a plurality of ball structures (305) are arranged at intervals in the slip ring groove (304), a slip ring (306) is arranged on the outside of the flap door side frame (301), the slip ring (306) and the slip ring groove (304) are in sliding matching contact, and the slip ring (306) is embedded in the slip ring groove (304).

9. The energy-saving straight pipe water outlet channel device according to claim 6, characterized in that: The flap door side frame (301) is also provided with a flap door panel limiting piece (307), and the flap door panel limiting piece (307) limits the opening angle of the flap door panel (302).

10. The energy-saving straight pipe water outlet channel device according to claim 8, characterized in that: A plurality of sliding ring fixing ribs (308) are also arranged at intervals between the sliding ring (306) and the flap door side frame (301).

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