阅读说明：本技术 一种由光伏驱动的可灵活调节长距离渠道流量的方法 (Photovoltaic-driven method capable of flexibly adjusting long-distance channel flow ) 是由 章勋 桂绍波 梁波 王华军 陈笙 彭志远 郑涛平 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种由光伏驱动的可灵活调节长距离渠道流量的方法。它包括如下步骤,步骤一：组件安装；轻质钢结构平台横跨输水干渠；将太阳能光伏组件安装在屋顶结构上；将新型潜水全贯流闸门泵组安装在输水干渠的闸门上；将太阳能光伏组件及配套储能蓄电装置与新型潜水全贯流闸门泵组连接；步骤二：调节新型潜水全贯流闸门泵组的启闭；当调节自流供水流速和闸门泵过流流量时,太阳能光伏组件及配套储能蓄电装置向新型潜水全贯流闸门泵组供电,新型潜水全贯流闸门泵组启动,调节前置活动导叶安放角,改变叶轮进口的速度场,进而改变自流供水流速和过流流量。本发明具有加快自流供水速度、缩短供水时间,实现水资源动态配置和最大利用的优点。(The invention discloses a photovoltaic-driven method capable of flexibly adjusting the flow of a long-distance channel. The method comprises the following steps: mounting the components; the light steel structure platform spans the water delivery main channel; mounting a solar photovoltaic module on a roof structure; installing a novel submersible full-through-flow gate pump set on a gate of a water delivery main canal; connecting the solar photovoltaic component and the matched energy storage and power storage device with a novel submersible full-through-flow gate pump set; step two: the opening and closing of a novel submersible full-through-flow gate pump set are adjusted; when the flow rate of the self-flowing water supply and the flow rate of the gate pump are adjusted, the solar photovoltaic module and the matched energy storage and power storage device supply power to the novel submersible full-through-flow gate pump set, the novel submersible full-through-flow gate pump set is started, the placement angle of the front movable guide vane is adjusted, the speed field of the inlet of the impeller is changed, and then the flow rate of the self-flowing water supply and the flow rate of the gate pump are changed. The invention has the advantages of accelerating the self-flowing water supply speed, shortening the water supply time and realizing the dynamic allocation and the maximum utilization of water resources.)

1. A method driven by photovoltaic and capable of flexibly adjusting the flow of long-distance channels is characterized in that: comprises the following steps of (a) carrying out,

the method comprises the following steps: mounting the components;

the light steel structure platform (2) spans the water delivery main channel (1) and is arranged above the water delivery main channel (1);

the upper end of the light steel structure platform (2) is provided with a roof structure (3);

mounting a solar photovoltaic module (4) on a roof structure (3);

installing a novel diving full-through-flow gate pump set (10) on an existing gate (9) of a water delivery main canal;

the solar photovoltaic component (4) supplies power to the novel diving full-through-flow gate pump set (10) through a matched energy storage and electric power storage device;

step two: the opening and closing of a novel submersible full-through-flow gate pump set are adjusted;

the direct current electric energy generated by the solar photovoltaic component (4) is stored in a matched energy storage device;

when the flow rate of the self-flowing water supply and the flow rate of the gate pump are adjusted, the solar photovoltaic module (4) and the matched energy storage and power storage device supply power to the novel submersible full-through flow gate pump set (10), the novel submersible full-through flow gate pump set (10) is started, and the speed field of the inlet of the impeller is changed by adjusting the placing angle of the front movable guide vane (10.1) of the novel submersible full-through flow gate pump set (10), so that the flow rate of the self-flowing water supply and the flow rate of the gate pump are changed;

when the channel does not need to be overflowed, the solar photovoltaic assembly (4) and the matched energy storage and power storage device stop supplying power to the novel submersible full-through-flow gate pump set (10), and the novel submersible full-through-flow gate pump set (10) stops running.

2. The method for flexibly regulating the flow of long-distance channels driven by photovoltaic power as claimed in claim 1, wherein: the roof structure (3) is in a belt-shaped structure;

the roof structure (3) is higher than the highest water level that the main water channel (1) can reach under extreme conditions.

3. The method for flexibly regulating the flow of a long-distance channel driven by a photovoltaic as claimed in claim 1 or 2, wherein: the solar photovoltaic component (4) comprises a plurality of solar photovoltaic panels; the solar photovoltaic panels are laid on the roof structure (3) to form a strip-shaped photovoltaic array.

4. The method for flexibly regulating the flow of long-distance channels driven by photovoltaic as claimed in claim 3, wherein: in the second step, the matched energy storage and power storage device comprises an inverter (5) and an energy storage battery (6);

the solar photovoltaic module (4), the inverter (5), the energy storage battery (6), the pump set power control cabinet (7) and the novel submersible full-through-flow gate pump set (10) are sequentially connected through cables;

the joint control joint adjusting device (8) receives a feedback signal of a movable guide vane placing angle of the novel diving full-through-flow gate pump set (10) and an overflowing flow signal of a channel, and simultaneously receives a flow scheduling signal given by an upper end scheduling center and feeds the flow scheduling signal back to the energy storage battery (6) and the pump set power control cabinet (7), so that the movable guide vane placing angle, the overflowing flow and the required power supply quantity of the novel diving full-through-flow gate pump set (10) are changed.

5. The method for flexibly regulating the flow of long-distance channels driven by photovoltaic as claimed in claim 4, wherein: a sealing ring is arranged at the joint of a novel submersible full-through-flow gate pump set (10) and a gate (9).

6. The method for flexibly regulating the flow of long-distance channels driven by photovoltaic as claimed in claim 5, wherein: the novel diving full-through-flow gate pump set (10) comprises a front movable guide vane (10.1), a front guide vane body (10.2), a guide cap (10.3), a micro-adjusting structure (10.9) and a pump shell;

the front movable guide vane (10.1) and the front guide vane body (10.2) are arranged in the pump shell;

the front movable guide vane (10.1) is arranged between the guide cap (10.3) and the front guide vane body (10.2),

the micro-adjusting structure (10.9) is arranged on the front guide vane body (10.2) and is connected with the front movable guide vane (10.1).

7. The method for flexibly regulating the flow of long-distance channels driven by photovoltaic as claimed in claim 6, wherein: in the second step, the micro-adjusting structure (10.9) drives the front movable guide vane (10.1) to rotate, and when the adjusting direction of the front movable guide vane (10.1) is consistent with the rotating direction of the impeller, the placing angle of the front movable guide vane (10.1) is a positive angle; when the adjusting direction of the front movable guide vane (10.1) is opposite to the rotating direction of the impeller (10.5), the mounting angle of the front movable guide vane (10.1) is a negative angle; when the front movable guide vane (10.1) is adjusted to a specified angle, the micro-adjusting structure (10.9) locks the position of the front movable guide vane (10.1).

Technical Field

The invention relates to the field of water conservancy and new energy, in particular to a photovoltaic-driven method capable of flexibly adjusting the flow of a long-distance channel. More specifically, the method is a method for adjusting the flow of the long-distance channel by additionally arranging a novel submersible full-through-flow gate pump device with movable guide vanes for flow adjustment on a gate along the long-distance water delivery main channel, using a photovoltaic power generation assembly and a matched energy storage and power storage device which are covered above the channel as a pump power supply, and realizing full-range intelligent adjustment of water delivery flow and automatic flow water supply flow rate increase through the opening and closing and operation of the novel submersible full-through-flow gate pump and the adjustment of a placement angle of the front movable guide vanes.

Background

The long distance water delivery main canal, especially the manual water delivery main canal, generally adopts the self-flowing water delivery mode, such as a central line engineering main canal, the whole course of the water delivery channel as long as 1200km adopts the self-flowing water supply, and the main canal is provided with a check gate 64 seat. The highest total head of a certain midline main canal is only 100m, so the water flow velocity in the canal is slow in a self-flowing mode and is less than 0.9m/s on average. The long-distance water delivery main canal engineering similar to a certain midline engineering has the characteristics of long water delivery line, low overflowing flow rate, large designed flow and the like, so that the problems of large water evaporation loss, long self-flowing water supply time, multi-surface source water pollution along the line and the like are inevitable.

Therefore, it is necessary to develop a method for increasing the self-flowing water supply speed and shortening the water supply time for the long distance channel flow.

Disclosure of Invention

The invention aims to provide a photovoltaic-driven method capable of flexibly adjusting the flow of a long-distance channel, which accelerates the self-flowing water supply speed, shortens the water supply time and realizes the dynamic configuration and the maximum utilization of water resources; effectively solves the series problems of slow speed, long time, prominent multi-surface source water pollution, large water evaporation capacity and the like of the existing open channel gravity flow water supply.

In order to achieve the purpose, the technical scheme of the invention is as follows: a method driven by photovoltaic and capable of flexibly adjusting the flow of long-distance channels is characterized in that: comprises the following steps of (a) carrying out,

the method comprises the following steps: mounting the components;

the light steel structure platform spans the water delivery main canal and is arranged above the water delivery main canal;

the upper end of the light steel structure platform is provided with a roof structure;

mounting a solar photovoltaic module on a roof structure;

installing a novel submersible full-through-flow gate pump set on the existing gate of a water delivery main canal;

the solar photovoltaic component supplies power to the novel diving full-through-flow gate pump set through a matched energy storage and electric power storage device;

step two: the opening and closing of a novel submersible full-through-flow gate pump set are adjusted;

the direct current electric energy generated by the solar photovoltaic component is converted into alternating current electric energy through an inverter in the matched energy storage device and is stored in a storage battery in the matched energy storage device;

when the flow rate of the self-flowing water supply and the flow rate of the gate pump are adjusted, the solar photovoltaic module and the matched energy storage and power storage device supply power to the novel submersible full-through-flow gate pump set, the novel submersible full-through-flow gate pump set is started, and the speed field of the inlet of the impeller is changed by adjusting the placing angle of the front movable guide vane of the novel submersible full-through-flow gate pump set, so that the flow rate of the self-flowing water supply and the flow rate of the gate pump are changed;

when the channel does not need to be overflown, the solar photovoltaic component and the matched energy storage and power storage device stop supplying power to the novel diving full-through-flow gate pump set, and the novel diving full-through-flow gate pump set stops running.

In the above technical solution, the roof structure is a belt structure;

the height of the roof structure is higher than the highest water level that the main water delivery canal can reach under the extreme conditions;

in the technical scheme, the solar photovoltaic assembly comprises a plurality of solar photovoltaic panels; a plurality of solar photovoltaic panels are laid on the roof structure to form a strip-shaped or band-shaped photovoltaic array;

in the above technical solution, in the second step, the matched energy storage and power storage device includes an inverter, an energy storage battery, and the like;

the solar photovoltaic module, the inverter, the energy storage battery, the pump set power control cabinet and the novel submersible full-through-flow gate pump set are sequentially connected through cables;

the joint control joint adjusting device receives a feedback signal of a movable guide vane placing angle of the novel diving full-through-flow gate pump set and an overflowing flow signal of a channel, and simultaneously receives a flow scheduling signal given by an upper end scheduling center and the like, and feeds the flow scheduling signal back to an energy storage battery and a pump set power control cabinet, so that the movable guide vane placing angle, the overflowing amount and the required power supply amount of the novel diving full-through-flow gate pump set are changed;

in the technical scheme, a sealing ring is arranged at the joint of a novel submersible full-through-flow gate pump set and a gate;

in the technical scheme, the novel submersible full-through-flow gate pump set comprises a front movable guide vane, a front guide vane body, a guide cap, a micro adjusting structure and a pump shell;

the front movable guide vane and the front guide vane body are both arranged in the pump shell;

the front movable guide vane is arranged between the guide cap and the front guide vane body, and the micro adjusting structure is arranged on the front guide vane body and connected with the front movable guide vane;

in the above technical scheme, in the second step, the micro-adjusting structure drives the front movable guide vane to rotate, and when the adjusting direction of the front movable guide vane is consistent with the rotating direction of the impeller, the setting angle of the front movable guide vane is a positive angle; when the adjusting direction of the front movable guide vane is opposite to the rotating direction of the impeller, the mounting angle of the front movable guide vane is a negative angle; when the front movable guide vane is adjusted to a specified angle, the micro adjusting structure can lock the position of the front movable guide vane, so that the installation angle of the front movable guide vane is not changed.

The invention has the following advantages:

the invention provides a novel full-through-flow submerged gate pump which is provided with movable guide vanes and can adjust the flow rate and is additionally arranged at a gate along a long-distance self-flowing water delivery main canal, a channel cover plate, a photovoltaic module and an energy-storing and electricity-storing device are additionally arranged on an open canal to serve as the driving power of the novel gate pump, the novel gate pump can replace a traditional gate, so that the accurate adjustment of the total main canal water supply flow rate is realized, meanwhile, the self-flowing water supply flow rate can be increased to about 1.0m/s-3.0m/s by accelerating the self-flowing water supply speed, so that the water supply time is shortened, the series problems of low self-flowing water supply speed, long water supply time, prominent multi-surface source water pollution problem, large water evaporation capacity and the like of the original open canal can be effectively relieved, and the dynamic configuration and the maximum utilization of water resources are realized; meanwhile, the photovoltaic panel is paved along the open channel, and the energy-storing and electricity-storing device is additionally arranged, so that power is provided for the novel full-through-flow submersible gate pump along the channel, the extra cost required by the operation of the gate pump can be effectively reduced, and the social and economic benefits are remarkable.

Drawings

Fig. 1 is a structural diagram of a submersible total cross-flow gate pump device driven by channel photovoltaic and capable of adjusting flow rate.

Fig. 2 is a schematic structural view of the lightweight steel structure platform arranged on a water delivery main canal.

FIG. 3 is a working principle diagram of the novel submersible full-through-flow gate pump set with adjustable flow driven by channel photovoltaic in the invention.

In the figure, 1-a water delivery main canal, 2-a light steel structure platform, 3-a roof structure, 4-a solar photovoltaic module, 5-an inverter, 6-an energy storage battery, 7-a pump set power control cabinet, 8-a joint control joint adjusting device, 9-a gate, 10-a novel diving full-through-flow gate pump set, 10.1-a front movable guide vane, 10.2-a front guide vane body, 10.3-a guide cap, 10.4-an impeller hub, 10.5-an impeller, 10.6-a rear guide vane, 10.7-a flap valve, 10.8-a water inlet bell mouth and 10.9-a micro adjusting structure.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.

The method for flexibly adjusting the flow of the long-distance channel driven by the channel photovoltaic module adopts the combination of a novel submersible full-through-flow gate pump set 10 capable of adjusting the flow and the existing gate 9, arranges a solar photovoltaic power generation module and a matched energy-storing and electricity-storing device on an open channel, provides electric energy for the novel submersible full-through-flow gate pump set 10, drives the novel submersible full-through-flow gate pump set 10 to open and close, and further realizes energy conservation and environmental protection; the micro-regulator is additionally arranged at the front end of the impeller to regulate the mounting angle of the movable guide vane, and the operating working condition point and the characteristic curve of the water pump are regulated through the change of the mounting angle of the movable guide vane to expand the operating efficient area range of the water pump, so that the aim of stepless regulation of the flow speed and the flow of the channel is fulfilled. The invention changes the structural style of the traditional full through-flow diving gate pump, can effectively relieve the problems of low self-flow water supply speed, long water supply time and the like of the original open channel, can effectively reduce the problems of water evaporation loss, multi-surface source water pollution and the like by accelerating the self-flow water supply speed and shortening the water supply time, thereby realizing the dynamic configuration and the maximum utilization of water resources.

With reference to the accompanying drawings: a method driven by photovoltaic and capable of flexibly adjusting the flow of long-distance channels comprises the following steps,

the method comprises the following steps: mounting the components;

the light steel structure platform 2 spans the water delivery main channel 1 and is arranged above the water delivery main channel 1; the light steel structure platform 2 is a large-span high-strength light platform, and the span and the strength of the light steel structure platform 2 change along with the span change of channels according to the channels with different conditions such as span and the like; the light steel structure platform 2 is in an arch shape or a plane support shape, a flow guide upright post for supporting the light steel structure platform 2 can be arranged in a channel, and the light steel structure platform 2 adopts an arch structure single-span (channel-free middle upright post support) or multi-span mode (channel upright post support is arranged, namely the flow guide upright post) by utilizing self prestress; the light steel structure platform 2 is combined into a strip-shaped strip structure along the water flow direction of the channel and is a capping structure arranged above the main channel; the light steel structure platform 2 is formed by assembling, welding or hinging high-strength alloy steel to form a roof with a certain bearing capacity, and the roof is erected along a channel, has safe, stable and reliable bearing capacity and is enough to bear all loads of a photovoltaic assembly, a direct-current cable, a personnel overhaul channel and overhaul equipment;

the upper end of the light steel structure platform 2 is provided with a roof structure 3;

mounting a solar photovoltaic module 4 on a roof structure 3; the upper end of the light steel structure platform 2 forms a roof structure 3 with a long strip shape, a roof arch shape or a plane structure with enough self-bearing force and strength, a photovoltaic component is laid above the roof structure 3, and the roof structure is connected through a cable to form a long strip-shaped photovoltaic power generation system;

installing a novel diving full-through-flow gate pump set 10 on an existing gate 9 of a water delivery main canal;

connecting the solar photovoltaic module 4 with a novel submersible full-through-flow gate pump set 10;

the gate 9 and a novel diving full-through-flow gate pump set 10 with a front guide vane with an adjustable placing angle form a novel diving full-through-flow gate pump device with the adjustable placing angle of the front guide vane through an opening, a sealing ring is arranged between the novel diving full-through-flow gate pump set 10 and the gate 9, and a corresponding lifting mechanism is arranged (the lifting mechanism is arranged above the gate 9 and used for lifting the gate 5 and the novel diving full-through-flow gate pump set 10, the lifting stroke meets the requirement that the gate 5 is completely dropped for water blocking/overflowing or is completely lifted (separated from the water surface/maintained), the overflowing flow velocity and the flow passing through the novel diving full-through-flow gate pump device are adjusted by adjusting the placing angle of the front movable guide vane 10.1, and the traditional working mode of realizing flow adjustment by changing the lifting amplitude of the gate is replaced.

Step two: the opening and closing of a novel submersible full-through-flow gate pump set are adjusted;

the direct current electric energy generated by the solar photovoltaic component 4 is converted into alternating current electric energy through an inverter 5 in the matched energy storage device and is stored in a storage battery 6 in the matched energy storage device;

when the flow rate of the self-flowing water supply and the overflow flow of the gate pump are adjusted, the solar photovoltaic module 4 supplies power to the novel submersible full-through flow gate pump set 10 through the matched energy storage and electricity storage device, the novel submersible full-through flow gate pump set 10 is started, the placing angle of a front movable guide vane 10.1 of the novel submersible full-through flow gate pump set 10 is adjusted through a miniature speed regulator 10.9, and then the speed field of an impeller inlet is changed, so that the flow rate of the self-flowing water supply and the overflow flow of the gate pump are changed;

when the channel does not need to be overflowed, the solar photovoltaic module 4 and the matched energy-storing and electricity-storing device stop supplying power to the novel submersible full-through-flow gate pump set 10, and the novel submersible full-through-flow gate pump set 10 stops running (as shown in fig. 1, 2 and 3).

The invention realizes the on-off of the overflowing flow through the on-off and the operation of a novel diving full-through-flow gate pump set 10 under the condition that a gate 9 completely falls down, and simultaneously, the placing angle of a front movable guide vane is specifically adjusted through a feedback signal of the placing angle of the movable guide vane fed back by a signal feedback device, an overflowing flow signal of a channel, a flow scheduling signal given by an upper end scheduling center and the like, so that the speed field of an impeller inlet is changed, a certain prerotation speed is provided for the water flow at the water pump inlet, the operating working condition point of the water pump and the characteristic curve of the water pump are further adjusted, the overflowing flow of the gate pump is changed, the flow rate of the self-flowing water supply is improved due to the operation of the impeller of the gate pump, and the aim of adjusting the flow rate and the flow of the water pump is realized without adjusting the opening degree of the gate.

The signal feedback device is the prior art.

The water delivery main canal 1 is an open water delivery open canal, the canal is generally an artificial concrete lining runner, and no cover is arranged above the canal. The lining canal is generally provided with a berm (concrete or asphalt pavement) for operation tour and transportation maintenance equipment on both sides, and is also generally provided with a buffer protection forest belt on both sides for closed management and water quality safety guarantee.

Further, the roof structure 3 is a belt-like roof structure;

the roof structure 3 is positioned above the water delivery main channel 1; the roof structure 3 is higher than the highest water level that the main water channel 1 can reach under the extreme conditions encountered; extreme conditions are those extreme climatic conditions including rainstorms, floods, and the like.

Further, the solar photovoltaic module 4 comprises a plurality of solar photovoltaic panels; a plurality of solar photovoltaic panels are laid on the roof structure 3 and form a strip-shaped or belt-shaped photovoltaic array (as shown in fig. 2).

Further, in the second step, the solar photovoltaic module 4 supplies power to the novel diving full-through-flow gate pump set 10 through the matched energy storage and electric power storage device,

the matched energy storage and power storage device comprises an inverter 5, an energy storage battery 6 and the like;

the solar photovoltaic component 4, the inverter 5, the energy storage battery 6, the pump set power control cabinet 7 and the novel diving full-through-flow gate pump set 10 are connected in sequence through cables,

the joint control joint adjusting device 8 receives feedback signals of the placement angle of the movable guide vane of the novel diving full-through-flow gate pump set 10 and flow over-flow signals of a channel, receives flow scheduling signals given by a scheduling center at an upper end and the like, and feeds the flow scheduling signals back to the energy storage battery 6 and the pump set power control cabinet 7, so that the placement angle of the movable guide vane, the flow over and the required power supply quantity of the novel diving full-through-flow gate pump set 10 are changed (as shown in fig. 3). The inverter, the energy storage battery and other matched energy storage and power storage devices are connected through alternating current and direct current cables and arranged at a proper place outside a main channel lining bank slope, and electric power generated by the main channel photovoltaic power generation system directly supplies power to the novel submersible full-through-flow gate pump through the alternating current control cabinet. The power control cabinet and the joint control joint adjusting device are both arranged near the top of the gate. Changing the mounting angle of the guide vane in the novel submersible full-through-flow gate pump set through the joint control joint adjusting device according to the fed back actually measured flow signal so as to change the over-flow; the specific schematic diagram is shown in figure 3.

The inverter 5 is preferably a string inverter, and is used for converting direct current generated by the photovoltaic module into alternating current and stabilizing voltage.

The energy storage battery 6 stores the alternating current converted by the inverter in the energy storage battery so as to provide high-quality and stable driving electric energy for the novel submersible full-through-flow gate pump set.

And the pump set power control cabinet 7 is used for supplying power to the novel submersible full-through-flow gate pump set and controlling the power of the novel submersible full-through-flow gate pump set and is connected with the pump set power control cabinet through a control cable.

The joint control joint adjusting device 8 is used for comprehensively adjusting the number of running stages, the flow speed and the flow rate of water passing of the novel submersible full-through-flow gate pump set.

Furthermore, a sealing ring is arranged at the joint of the novel submersible full-through-flow gate pump set 10 and the gate 9.

Further, the novel submersible full-through-flow gate pump set 10 comprises a front movable guide vane 10.1, a front guide vane body 10.2, a guide cap 10.3, an impeller hub 10.4, an impeller 10.5, a rear guide vane 10.6, a flap valve 10.7, a water inlet bell mouth 10.8, a micro-adjusting structure 10.9 and a pump shell;

the front movable guide vane 10.1, the front guide vane body 10.2, the flow guide cap 10.3, the impeller hub 10.4, the impeller 10.5, the rear guide vane 10.6 and the water inlet bell mouth 10.8 are all arranged in the pump shell; the front end of the pump shell is provided with a water inlet bell mouth 10.8, and the rear end is provided with a water outlet bell mouth;

the front movable guide vane 10.1 is arranged at the position of the water inlet bell mouth 10.8 and is arranged between the flow guide cap 10.3 and the front guide vane body 10.2,

the flow guide cap 10.3 is arranged at the front end of the impeller hub 10.4;

the middle part of the impeller hub 10.4 is provided with an impeller 10.5, and the rear end is provided with a rear guide vane 10.6; the rear guide vane 10.6 is arranged at the water outlet bell mouth;

the flap valve 10.7 is arranged at the rear end of the pump shell;

the micro-adjusting structure 10.9 is arranged on the front guide vane body 10.2 and connected with the front movable guide vane 10.1 (as shown in fig. 1); when the gate is closed, the setting angle of the front movable guide vane is adjusted through the micro-regulator to change the speed field of the impeller inlet, a certain prerotation speed is provided for water flow at the water pump inlet, and the operating condition point and the characteristic curve of the water pump are further adjusted, so that the overflowing flow of the gate pump is changed, meanwhile, the flowing speed of the self-flowing water supply is improved due to the operation of the impeller of the gate pump, and therefore, the purposes of adjusting the overflowing flow speed and the overflowing flow of the water pump can be achieved without adjusting the opening degree of the gate.

The invention drives the front movable guide vane 10.1 to rotate around the axis thereof through the micro adjusting structure 10.9, thereby changing the placing angle of the front movable guide vane 10.1, changing the speed field of the impeller inlet, providing a certain prewhirl speed for the inlet water flow of the novel diving full through-flow gate pump set 10, achieving the purposes of changing the performance of the water pump, adjusting the operating working point and the characteristic curve of the water pump and adjusting the flow speed and the flow rate of the water pump, and simultaneously expanding the stable operating range and the high-efficiency area range of the novel diving full through-flow gate pump device.

According to the working condition, the micro-adjusting structure 10.9 can be a manual adjusting structure or an electric adjusting structure.

Further, in the second step, the micro-adjusting structure 10.9 drives the front movable guide vane 10.1 to rotate, and when the adjusting direction of the front movable guide vane 10.1 is consistent with the rotating direction of the impeller 10.5, the setting angle of the front movable guide vane 10.1 is a positive angle;

when the adjusting direction of the front movable guide vane 10.1 is opposite to the rotating direction of the impeller 10.5, the mounting angle of the front movable guide vane 10.1 is a negative angle. When leading movable guide vane 10.1 adjusts to the appointed angle, leading movable guide vane 10.1 position is locked to miniature regulation structure 10.9, prevents to lead to leading movable guide vane angle to change because of rivers flow.

The novel diving full-through-flow gate pump set 10 is a novel diving full-through-flow gate pump set with an adjustable mounting angle of a front movable guide vane, blades of the front movable guide vane 10.1 are uniformly distributed, the specific number and shape of the blades are optimally matched with the number of blades of an impeller, the pump set can be finally determined based on a hydraulic design theory of hydraulic machinery and combined with a CFD (computational fluid dynamics) technology and a model test, and the specific structure and distribution are shown in figure 1. The inlet edge of the front movable guide vane 10.1 is inclined, and the outlet edge is horizontal. The side of the front movable guide vane 10.1 close to the front guide vane body 10.2 is parallel to the front guide vane body 10.2, and a small gap is left; the side of the front movable guide vane 10.1, which is close to the diversion cap 10.3, is parallel to the diversion cap 10.3, and a small gap is left; avoid colliding when adjusting leading movable guide vane angle of laying. The length of the side of the front movable guide vane 10.1 close to the front guide vane body 10.2 is longer, so as to better block a backflow area caused by the rotation of the impeller.

Examples

The invention will now be described in detail by taking an example of the invention applied to a central line water-conveying main channel, and the invention also has a guiding function when applied to other water-conveying open channels (and the like in the same way for other water-conveying open channels).

The main principle and flow of this embodiment are as follows:

(1) a novel submersible full-through-flow gate pump set 10 with a front movable guide vane is additionally arranged on a flat gate along a channel of a water delivery main channel with a central line (namely, a novel full-through-flow gate pump capable of adjusting flow) to form a novel submersible full-through-flow gate pump device with an adjustable front guide vane placement angle, and the front movable guide vane 10.1 in the novel submersible full-through-flow gate pump set 10 can realize stepless adjustment of the placement angle of the front movable guide vane 10.1 (as shown in figure 1) by depending on a micro-adjustment structure 10.9, so that the full-range adjustment of the channel section water flow speed and the water flow is realized;

(2) a special large-span high-strength light platform structure is arranged in a strip-shaped large-area strip-shaped open space above the channel to form a roof with a certain bearing capacity, and the roof is erected along the channel, has safe, stable and reliable bearing capacity and can bear all loads of a photovoltaic assembly, a direct-current cable, a personnel overhaul channel and overhaul equipment; meanwhile, the roof height above the channel is higher than the highest water level that the channel can reach under extreme conditions such as rainstorm, flood and the like (as shown in fig. 2);

(3) laying photovoltaic modules on the special roof type platform structure above the channel, and connecting the photovoltaic modules through cables to form a long strip-shaped photovoltaic power generation system; the inverter, the alternating current control cabinet, the energy storage and power storage device and other matched energy storage and power storage devices are connected through alternating current cables and direct current cables and are arranged at proper places outside the main canal lining bank slope; the electric power generated by the main canal photovoltaic power generation system directly supplies power to the novel submersible full-through-flow gate pump device with the adjustable front guide vane placing angle through the alternating current control cabinet (as shown in figure 3), and the overflow flow of the novel full-through-flow gate pump can be adjusted by the movable guide vane with the adjustable front placing angle in the device.

And (4) conclusion: the novel submersible full-through-flow gate pump driven by the channel photovoltaic module and capable of adjusting the flow in the embodiment changes the structural style of the traditional full-through-flow submersible gate pump, not only can completely replace the traditional working mode of changing the overflowing flow by changing the lifting amplitude of the gate, but also can accurately adjust the flow velocity and the water delivery flow of the canal by self-provided external power, effectively solve the problems of slow speed, long time and the like of the original open canal self-flowing water supply, accelerate the self-flowing water supply speed, shorten the water supply time, the water source system can effectively reduce the problems of water evaporation loss, multi-surface source water pollution and the like, realizes dynamic configuration and maximum utilization of water resources, and supplies power to the gate pump along the line by paving the photovoltaic panel along the open channel and additionally installing the energy-storing and electricity-storing device, thereby avoiding extra cost caused by supplying power to the gate pump and having remarkable social and economic benefits.

Other parts not described belong to the prior art.