阅读说明：本技术 一种用于过河的节能一体化污水泵站及运行控制方法 (Energy-saving integrated sewage pump station for river crossing and operation control method ) 是由 王晓明 黄荣敏 张�浩 廖少波 余太平 于 2021-07-28 设计创作，主要内容包括：本发明公开了一种用于过河的节能一体化污水泵站及运行控制方法,进水井的底部倾斜布置有泵站底座过流通道,所述进水井的一侧与污水进水管道相连通；所述进水井的内部布置有水泵排水系统；所述泵站底座过流通道竖直连通有竖向出水管道；所述竖向出水管道上连通有用于形成倒虹过河的凹字形倒虹出水管道,所述凹字形倒虹出水管道铺设在河床的底部；所述水泵排水系统与凹字形倒虹出水管道相连通；所述凹字形倒虹出水管道的另一端与出水井相连。通过将泵站与倒虹过河两种方式结合,进而优化污水泵站设计,创造性的提出泵站底部防淤方式并结合一系列运行控制方法。(The invention discloses an energy-saving integrated sewage pump station for crossing a river and an operation control method thereof.A pump station base overflowing channel is obliquely arranged at the bottom of a water inlet well, and one side of the water inlet well is communicated with a sewage inlet pipeline; a water pump drainage system is arranged in the water inlet well; the pump station base overflowing channel is vertically communicated with a vertical water outlet pipeline; the vertical water outlet pipeline is communicated with a concave inverted rainbow water outlet pipeline used for forming an inverted rainbow river, and the concave inverted rainbow water outlet pipeline is laid at the bottom of a river bed; the water pump drainage system is communicated with the inverted siphon water outlet pipeline in the shape of a Chinese character 'ao'; the other end of the concave inverted siphon water outlet pipeline is connected with the water outlet well. The pump station is combined with the inverted siphon river-crossing mode, so that the design of the sewage pump station is optimized, the anti-silting mode at the bottom of the pump station is creatively provided, and a series of operation control methods are combined.)

1. The utility model provides an energy-conserving integration sewage pump station for crossing a river which characterized in that: the sewage treatment device comprises a water inlet well (22), wherein a pump station base overflowing channel (1) is obliquely arranged at the bottom of the water inlet well (22), and one side of the water inlet well (22) is communicated with a sewage inlet pipeline (16); a water pump drainage system is arranged inside the water inlet well (22); the pump station base overflowing channel (1) is vertically communicated with a vertical water outlet pipeline (2); the vertical water outlet pipeline (2) is communicated with a concave inverted rainbow water outlet pipeline (4) used for forming an inverted rainbow river, and the concave inverted rainbow water outlet pipeline (4) is laid at the bottom of a river bed (25); the water pump drainage system is communicated with the inverted rainbow water outlet pipeline (4) in the shape of a Chinese character 'ao'; the other end of the concave inverted siphon water outlet pipeline (4) is connected with a water outlet well (24).

2. The energy-saving integrated sewage pump station for river crossing according to claim 1, characterized in that: the pump station base overflowing channel (1) is embedded and arranged by adopting a blind hole; the water inlet well (22) and the water outlet well (24) are respectively arranged on two sides of a river bank (26); an operation platform (20) is arranged at the inner upper part of the water inlet well (22).

3. The energy-saving integrated sewage pump station for river crossing according to claim 1, characterized in that: the bottom end of the water inlet well (22) is provided with a pump station base sludge discharge channel (7) which is arranged in an open manner, and the pump station base sludge discharge channel (7) is communicated with the pump station base overflowing channel (1); and the bottom of the water inlet well (22) adopts a slope structure, and all slopes incline to the central part of the bottom of the pump station.

4. The energy-saving integrated sewage pump station for river crossing according to claim 1, characterized in that: a basket grizzly screen (17) for preliminary filtration is arranged at the position inside the water inlet well (22) and communicated with the sewage inlet pipeline (16), and the basket grizzly screen (17) is fixed on the inner side wall of the water inlet well (22) through a triangular grid support (18); a grid guide rail (19) is fixedly arranged on the triangular grid support (18); the basket grating (17) and the grating guide rail (19) form sliding fit.

5. The energy-saving integrated sewage pump station for river crossing according to claim 1, characterized in that: the water pump drainage system comprises a water pump foundation (9) arranged at the bottom of the water inlet well (22), and a water pump (8) is fixedly arranged on the water pump foundation (9) through a water pump self-coupling base (10); a pressure water outlet pipe (27) of the vertical water pump is arranged at a pressure water outlet of the water pump (8), the pressure water outlet pipe (27) of the vertical water pump is connected with an L-shaped pressure water outlet pipe (11) of the water pump through a check valve (12) and a gate valve (13), and the other end of the L-shaped pressure water outlet pipe (11) of the water pump is communicated with the horizontal section of the inverted rainbow water outlet pipe (4) shaped like a Chinese character 'ao'.

6. The energy-saving integrated sewage pump station for river crossing according to claim 5, characterized in that: the water pump (8) is installed in a self-coupling mode, a water pump hanging chain (15) is connected to the water pump (8), and the water pump (8) and the water pump guide rail (14) form sliding fit.

7. The energy-saving integrated sewage pump station for river crossing according to claim 1, characterized in that: the concave inverted siphon water outlet pipeline (4) is connected with the vertical water outlet pipeline (2) through a pipeline soft connection joint (5), and an electric valve (6) is installed at the horizontal section of the concave inverted siphon water outlet pipeline (4); the electric valve (6) is positioned in front of a connector of an L-shaped water pump pressure water outlet pipeline (11) of a water pump drainage system; the electric valve (6) is arranged in the electric valve maintenance well (21).

8. The energy-saving integrated sewage pump station for river crossing according to claim 1, characterized in that: the top of the vertical water outlet pipeline (2) is provided with an overflow port (3); an energy dissipation device is arranged in the water outlet well (24), and a downstream sewage pipeline (23) is communicated with the water outlet well (24).

9. The energy-saving integrated sewage pump station for river crossing according to claim 5, characterized in that: according to the design scale of sewage, selecting a pump station base overflowing channel (1), a vertical water outlet pipeline (2) and a concave inverted siphon water outlet pipeline (4) with proper diameters, and calculating total head loss H through hydraulic calculation, wherein the pipe bottom elevation of an upstream sewage inlet pipeline (16) is at least higher than that of a downstream sewage pipeline;

the power of the water pump (8) is selected according to the diameter of the concave inverted siphon water outlet pipeline (4), so that the flow speed of sewage in the concave inverted siphon water outlet pipeline (4) is ensured to reach 2-2.5 m/s;

the volume of the water inlet well (22) is determined according to the flow of the water pump (8) in 5 minutes.

10. The method for controlling the operation of the energy-saving integrated sewage pumping station for river crossing according to any one of claims 1 to 9, characterized by comprising the following steps:

the method has three different operation conditions of a normal working condition, a desilting working condition and an emergency working condition:

normal working conditions are as follows:

the normal operation belongs to normal inverted siphon operation, the electric valve (6) is opened, power is provided by upstream and downstream water levels at the moment to form inverted siphon, upstream sewage enters the basket grid (17) through the sewage inlet pipeline (16), then enters the water inlet well (22), sequentially passes through the pump station base overflowing channel (1), the vertical water outlet pipeline (2), the concave inverted siphon water outlet pipeline (4) and the water outlet well, and finally enters the downstream sewage pipeline (23);

a small amount of impurities in the sewage are intercepted by a basket grid (17), and grid slag is periodically cleaned; most sludge is settled to the bottom of the water inlet well (22), passes through the pump station base overflowing channel (1), the vertical water outlet pipeline (2) and the concave inverted siphon water outlet pipeline (4) along with sewage, and finally enters a downstream sewage pipeline (23) along with sewage through the inverted siphon system; but a small amount of sludge is deposited to the bottom of the pump station and the bottom of the inverted rainbow water outlet pipeline (4);

and (3) dredging working condition:

the control system firstly automatically closes the electric valve (6), then starts the water pump (8), and after being lifted by the water pump (8), sewage is pumped to the inverted siphon water outlet pipeline (4) in the shape of a Chinese character 'ao' through the vertical water pump pressure water outlet pipeline (27) and the L-shaped water pump pressure water outlet pipeline (11) and enters the water outlet well (24), and finally enters the downstream sewage pipeline (23);

sludge at the bottom of the pump station is sucked into the water pump (8) along with water absorption of the water pump (8), and is discharged to a water outlet well through a vertical water pump pressure water outlet pipeline (27), an L-shaped water pump pressure water outlet pipeline (11) and a concave inverted siphon water outlet pipeline (4); meanwhile, sewage in a vertical water outlet pipeline (2) in the original pump station flows reversely to wash a base overflowing channel (1) of the pump station to wash sludge, and the sludge in the pump station can be discharged in such a way;

at the moment, the sewage flow speed in the concave inverted siphon water outlet pipeline (4) is high, deposited sludge is washed, and finally enters a downstream sewage pipeline (23) along with sewage along with the taking away of water flow, and through the mode, the sludge in the concave inverted siphon water outlet pipeline (4) can be discharged;

when the sewage in the pump station water inlet well (22) is lower than the lowest water level, the pump (8) is stopped, the electric valve (6) is opened, and the normal working condition is switched;

emergency working condition:

in special conditions, sewage passes through an overflow port (3) at the middle upper part of the pump station, and finally forms an inverted siphon through a vertical water outlet pipeline (2) and a concave inverted siphon water outlet pipeline (4), so that the operation safety of the pump station is further ensured;

the control method comprises the following steps:

step one, when the pump station normally operates, the whole pump station operates under a normal working condition;

step two, when the water level in the pump station is higher than the pipe top elevation of the sewage inlet pipeline (16), the pump station is switched to the dredging working condition to operate through a control system; after the operation of the dredging working condition is finished, the operation is automatically switched to the normal working condition, and the dredging of a pump station and a pipeline is finished;

step three, in the morning every day, the pump station is switched to a desilting working condition at regular time, and after the operation of the desilting working condition is finished, the pump station is automatically switched to a normal working condition to finish daily desilting of the pump station and the pipeline;

and step four, under a special emergency condition, the water level in the pump station reaches the overflow port (3), the pump station automatically enters an emergency working condition at the moment and sends alarm information, and after receiving the information, operation and maintenance management personnel immediately find out the reason on site and get rid of the fault, so that the pump station enters a normal operation working condition.

Technical Field

The invention relates to the technical field of sewage pipes, in particular to an energy-saving integrated sewage pump station for river crossing and an operation control method.

Background

With the gradual development of water environment remediation in cities, towns and rural areas, more and more projects are difficult to pass rivers through sewage pipelines. The existing sewage river crossing has three modes of pumping station lifting river crossing, inverted siphon river crossing and increased burial depth river crossing from the river bottom downslope.

The pump station is lifted to cross the river: the pump station design is considered according to the most unfavorable condition, and the cost is high, and the energy consumption of operation is high.

And (3) inverted rainbow river crossing: at present, the mainstream is divided into 2 modes, namely a concave river-crossing mode and a straight river-crossing mode. The concave inverted rainbow has the advantages of easy sedimentation at the bottom and difficult desilting. The river is crossed in a straight line shape, although the dredging is convenient, the burial depth is increased, and the manufacturing cost is higher. There are also projects that consider dredging by raising the upstream water level, but that cause higher pressures on the upstream pipeline maintenance.

Increasing the burial depth to cross the river from the river bottom downslope: this is an ideal river crossing, but the application conditions are narrow. Under normal conditions, the burial depth of the downstream of the pipeline can be increased, and the manufacturing cost of the whole sewage pipeline system is increased by times.

Disclosure of Invention

The invention mainly aims to provide an energy-saving integrated sewage pump station for river crossing and an operation control method thereof.

In order to achieve the technical features, the invention is realized as follows: an energy-saving integrated sewage pump station for crossing a river comprises a water inlet well, wherein a pump station base overflowing channel is obliquely arranged at the bottom of the water inlet well, and one side of the water inlet well is communicated with a sewage inlet pipeline; a water pump drainage system is arranged in the water inlet well; the pump station base overflowing channel is vertically communicated with a vertical water outlet pipeline; the vertical water outlet pipeline is communicated with a concave inverted rainbow water outlet pipeline used for forming an inverted rainbow river, and the concave inverted rainbow water outlet pipeline is laid at the bottom of a river bed; the water pump drainage system is communicated with the inverted siphon water outlet pipeline in the shape of a Chinese character 'ao'; the other end of the concave inverted siphon water outlet pipeline is connected with the water outlet well.

The pump station base overflowing channel is embedded and arranged by adopting a blind hole; the water inlet well and the water outlet well are respectively arranged on two sides of a river bank; and an operation platform is arranged at the inner upper part of the water inlet well.

The bottom end of the water inlet well is provided with a pump station base sludge discharge channel which is arranged in an open manner, and the pump station base sludge discharge channel is communicated with a pump station base overflowing channel; and the bottom of the water inlet well adopts a slope structure, and the slopes are all inclined to the central part of the bottom of the pump station.

A basket grid for primary filtration is arranged in the water inlet well and communicated with the sewage inlet pipeline, and the basket grid is fixed on the inner side wall of the water inlet well through a triangular grid support; the triangular grating bracket is fixedly provided with a grating guide rail; the basket grid and the grid guide rail form sliding fit.

The water pump drainage system comprises a water pump foundation arranged at the bottom of the water inlet well, and a water pump is fixedly arranged on the water pump foundation through a water pump self-coupling base; and a pressure water outlet pipeline of the vertical water pump is arranged at a pressure water outlet of the water pump, the pressure water outlet pipeline of the vertical water pump is connected with a pressure water outlet pipeline of the L-shaped water pump through a check valve and a gate valve, and the other end of the pressure water outlet pipeline of the L-shaped water pump is communicated with the horizontal section of the inverted rainbow water outlet pipeline in the shape of a Chinese character 'ao'.

The water pump adopts the self coupling installation, be connected with the water pump sling chain on the water pump, and water pump guide rail constitute sliding fit.

The concave inverted siphon water outlet pipeline is connected with the vertical water outlet pipeline through a pipeline soft connecting joint, and an electric valve is installed at the horizontal section of the concave inverted siphon water outlet pipeline; the electric valve is positioned in front of a connector of an L-shaped water pump pressure water outlet pipeline of the water pump drainage system; the electric valve is arranged inside the electric valve maintenance well.

The top of the vertical water outlet pipeline is provided with an overflow port; an energy dissipation device is arranged in the water outlet well, and a downstream sewage pipeline is communicated with the water outlet well.

Selecting a pump station base overflowing channel with a proper diameter, a vertical water outlet pipeline and a concave inverted siphon water outlet pipeline according to the design scale of sewage, and calculating total head loss H through hydraulic calculation, wherein the elevation of the pipe bottom of the upstream sewage inlet pipeline is at least higher than that of the pipe bottom H of the downstream sewage inlet pipeline;

the power of the water pump is selected according to the diameter of the concave inverted siphon water outlet pipeline, so that the flow speed of sewage in the concave inverted siphon water outlet pipeline is ensured to reach 2-2.5 m/s;

the volume of the water inlet well is determined according to the flow of the water pump for 5 minutes.

The control operation method of the energy-saving integrated sewage pump station for crossing the river comprises the following steps:

the method has three different operation conditions of a normal working condition, a desilting working condition and an emergency working condition:

normal working conditions are as follows:

the device belongs to normal inverted siphon operation during normal operation, an electric valve is opened, power is provided by upstream and downstream water levels at the moment to form an inverted siphon, upstream sewage enters a basket grid through a sewage inlet pipeline, then enters an inlet well, sequentially passes through a pump station base overflowing channel, a vertical water outlet pipeline, a concave inverted siphon water outlet pipeline and an outlet well, and finally enters a downstream sewage pipeline;

a small amount of impurities in the sewage are intercepted by the basket grid, and grid slag is periodically cleaned; most of sludge is settled to the bottom of the water inlet well, passes through the pump station base overflowing channel, the vertical water outlet pipeline and the concave inverted siphon water outlet pipeline along with sewage, and finally enters a downstream sewage pipeline along with the sewage through the inverted siphon system; but a small amount of sludge is deposited to the bottom of the pump station and the bottom of the inverted siphon water outlet pipeline;

and (3) dredging working condition:

the control system firstly automatically closes the electric valve, then starts the water pump, and after being lifted by the water pump, sewage is pumped to a concave inverted siphon water outlet pipeline through a vertical water pump pressure water outlet pipeline and an L-shaped water pump pressure water outlet pipeline, enters the water outlet well, and finally enters a downstream sewage pipeline;

sludge at the bottom of the pump station is sucked into the water pump along with water absorption of the water pump, and is discharged to a water outlet well through a vertical water pump pressure water outlet pipeline, an L-shaped water pump pressure water outlet pipeline and a concave inverted siphon water outlet pipeline; meanwhile, sewage in a vertical water outlet pipeline inside the original pump station flows reversely to wash an overflow channel of a base of the pump station and wash sludge, and the sludge inside the pump station can be discharged in such a way;

at the moment, the sewage flow speed in the concave inverted siphon water outlet pipeline is higher, the deposited sludge is washed, and finally enters a downstream sewage pipeline along with the sewage after being taken away by the water flow, so that the sludge in the concave inverted siphon water outlet pipeline can be discharged;

when the sewage in the pump station water inlet well is lower than the lowest water level, the pump is stopped by the water pump, the electric valve is opened, and the normal working condition is switched;

emergency working condition:

in special cases, sewage passes through the overflow port at the middle upper part of the pump station, and finally forms an inverted siphon through the vertical water outlet pipeline and the inverted siphon water outlet pipeline in the shape of a Chinese character 'ao', so that the operation safety of the pump station is further ensured.

The control method comprises the following steps:

step one, when the pump station normally operates, the whole pump station operates under a normal working condition;

step two, when the water level in the pump station is higher than the pipe top elevation of the sewage inlet pipeline, the pump station is switched to the dredging working condition to operate through a control system; after the operation of the dredging working condition is finished, the operation is automatically switched to the normal working condition, and the dredging of a pump station and a pipeline is finished;

and step three, in the morning every day, the pump station is switched to a desilting working condition at regular time, and after the operation of the desilting working condition is finished, the pump station is automatically switched to a normal working condition to finish the daily desilting of the pump station and the pipeline.

And step four, under a special emergency condition, the water level in the pump station reaches an overflow port, the pump station automatically enters an emergency working condition at the moment and sends alarm information, and after receiving the information, operation and maintenance management personnel immediately find out the reason on site and get rid of the fault, so that the pump station enters a normal operation working condition.

The invention has the following beneficial effects:

1. the invention combines the two modes of the pump station and the inverted siphon river crossing, optimizes the design of the sewage pump station, creatively provides a pump station bottom silt prevention mode and combines a series of operation control methods, successfully realizes the energy-saving river crossing of the sewage, can effectively prevent siltation and has lower manufacturing cost.

2. The conventional pump station system needs to be provided with a large pump and a small pump, the system and the inverted siphon system are mutually standby, and only one pump is arranged. The diameter of the pump station is greatly reduced, and corresponding accessory facilities are reduced, so that the manufacturing cost is reduced; and need not standby power supply and set up, only need a power all the way, reduce external electricity and insert the expense.

3. Compared with the existing common straight-line inverted siphon river crossing, the system greatly reduces the river crossing burial depth. The cost of civil engineering just reduced just exceeds the expense of newly-built this system pump station, and this system later stage fortune dimension cost is less than the river of crossing of falling the rainbow.

4. The pump station system provided by the invention is provided with three operation modes, and the daily operation cost is extremely low.

5. When the sewage system of the invention passes through a river, the cost is low, the construction is convenient, the operation is energy-saving, the operation and maintenance in the later period are simple, and the invention is worth popularizing.

Drawings

Fig. 1 is a river crossing floor arrangement diagram of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a top view of the water pump drainage system of the present invention.

Fig. 4 is a view a-a of fig. 3 of the present invention.

Fig. 5 is a view B-B of fig. 3 of the present invention.

In the figure: 1 pump station base overflowing channel, 2 vertical outlet pipe, 3 overflow ports, 4 inverted-rainbow outlet pipe, 5 pipeline flexible connection joints, 6 electric valves, 7 pump station base mud discharge channels, 8 water pumps, 9 water pump bases, 10 water pump self-coupling bases, 11L-shaped water pump pressure outlet pipe, 12 check valves, 13 gate valves, 14 water pump guide rails, 15 water pump hanging chains, 16 sewage inlet pipes, 17 basket lifting grids, 18 triangular grid supports, 19 grid guide rails, 20 operating platforms, 21 electric valve maintenance wells, 22 inlet wells, 23 downstream sewage pipes, 24 outlet wells, 25 riverbeds, 26 riverbanks and 27 vertical water pump pressure outlet pipes.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Example 1:

referring to fig. 1-5, an energy-saving integrated sewage pump station for river crossing comprises a water inlet well 22, wherein a pump station base overflowing channel 1 is obliquely arranged at the bottom of the water inlet well 22, and one side of the water inlet well 22 is communicated with a sewage inlet pipeline 16; a water pump drainage system is arranged in the water inlet well 22; the pump station base overflowing channel 1 is vertically communicated with a vertical water outlet pipeline 2; the vertical water outlet pipeline 2 is communicated with a concave inverted rainbow water outlet pipeline 4 for forming an inverted rainbow river, and the concave inverted rainbow water outlet pipeline 4 is laid at the bottom of a river bed 25; the water pump drainage system is communicated with the inverted rainbow water outlet pipeline 4 in the shape of a Chinese character 'ao'; the other end of the concave inverted siphon water outlet pipeline 4 is connected with a water outlet well 24. The invention combines the two modes of the pump station and the inverted siphon river crossing, further optimizes the design of the sewage pump station, creatively provides a pump station bottom silt prevention mode and combines a series of operation control methods, successfully realizes the energy-saving river crossing of the sewage, can effectively prevent the silt and has lower manufacturing cost.

Furthermore, the pump station base overflow channel 1 is embedded and arranged by adopting a blind hole; the water inlet well 22 and the water outlet well 24 are respectively arranged at two sides of a river bank 26; an operation platform 20 is arranged at the inner upper part of the water inlet well 22. By adopting the arrangement mode, the sewage pump station can effectively pass through the river. Compared with the existing common straight-line inverted siphon river crossing, the system greatly reduces the river crossing burial depth. The cost of civil engineering just reduced just exceeds the expense of newly-built this system pump station, and this system later stage fortune dimension cost is less than the river of crossing of falling the rainbow.

Further, a pump station base sludge discharge channel 7 which is arranged in an open manner is arranged at the bottom end of the water inlet well 22, and the pump station base sludge discharge channel 7 is communicated with the pump station base overflowing channel 1; and the bottom of the water inlet well 22 adopts a slope structure, and the slope is totally inclined to the central part of the bottom of the pump station. Through adopting foretell slope arrangement mode, can play the effectual purpose of collecting silt.

Furthermore, a basket grid 17 for primary filtration is arranged in the water inlet well 22 and communicated with the sewage inlet pipeline 16, and the basket grid 17 is fixed on the inner side wall of the water inlet well 22 through a triangular grid support 18; a grid guide rail 19 is fixedly arranged on the triangular grid support 18; the basket grid 17 forms a sliding fit with the grid guide 19. The basket grid 17 described above can be used for the purpose of preliminary filtering of the sewage.

Further, the water pump drainage system comprises a water pump foundation 9 arranged at the bottom of the water inlet well 22, and a water pump 8 is fixedly arranged on the water pump foundation 9 through a water pump self-coupling base 10; the pressure water outlet of the water pump 8 is provided with a vertical water pump pressure water outlet pipeline 27, the vertical water pump pressure water outlet pipeline 27 is connected with the L-shaped water pump pressure water outlet pipeline 11 through a check valve 12 and a gate valve 13, and the other end of the L-shaped water pump pressure water outlet pipeline 11 is communicated with the horizontal section of the inverted siphon water outlet pipeline 4. The water pump drainage system can realize drainage in an electric mode and can achieve the purpose of flushing silt. In the working process, the control system firstly automatically closes the electric valve 6, then starts the water pump 8, and after being lifted by the water pump 8, sewage is pumped to the inverted siphon water outlet pipeline 4 in the shape of a Chinese character 'ao' through the vertical water pump pressure water outlet pipeline 27 and the L-shaped water pump pressure water outlet pipeline 11, enters the water outlet well 24, and finally enters the downstream sewage pipeline 23.

Further, the water pump 8 is installed in a self-coupling mode, a water pump hanging chain 15 is connected to the water pump 8, and the water pump 8 and the water pump guide rail 14 form sliding fit. By adopting the installation mode, the water pump is convenient to overhaul and install subsequently.

Further, the concave inverted siphon water outlet pipeline 4 is connected with the vertical water outlet pipeline 2 through a pipeline soft connection joint 5, and an electric valve 6 is installed at the horizontal section of the concave inverted siphon water outlet pipeline 4; the electric valve 6 is positioned in front of a connector of an L-shaped water pump pressure water outlet pipeline 11 of a water pump drainage system; the electric valve 6 is arranged inside the electric valve maintenance well 21. Through the installation arrangement mode of foretell electric valve 6, guaranteed that whole pump station can carry out the function switch between siphon and electronic the two.

Further, an overflow port 3 is arranged at the top of the vertical water outlet pipeline 2; an energy dissipation device is arranged inside the water outlet well 24, and a downstream sewage pipeline 23 is communicated with the water outlet well 24. The overflow port 3 described above can ensure drainage work in an emergency.

Further, according to the design scale of sewage, selecting a pump station base overflowing channel 1 with a proper diameter, a vertical water outlet pipeline 2 and a concave inverted siphon water outlet pipeline 4, and calculating the total head loss H through hydraulic calculation, wherein the pipe bottom elevation of an upstream sewage inlet pipeline 16 is at least higher than that of a downstream sewage pipeline; through the arrangement mode, the siphon can be formed.

Further, the power of the water pump 8 is selected according to the diameter of the concave inverted siphon water outlet pipeline 4, so that the flow speed of sewage in the concave inverted siphon water outlet pipeline 4 reaches 2-2.5 m/s; the flow velocity control ensures the effect of flushing silt.

Further, the volume of the inlet well 22 is determined according to the flow rate of the water pump in 85 minutes. The water collecting effect is ensured by the volume.

Example 2:

the control operation method of the energy-saving integrated sewage pump station for crossing the river comprises the following steps:

the method has three different operation conditions of a normal working condition, a desilting working condition and an emergency working condition:

normal working conditions are as follows:

the normal operation belongs to normal inverted siphon operation, the electric valve 6 is opened, power is provided by upstream and downstream water levels at the moment to form inverted siphon, upstream sewage enters the basket grid 17 through the sewage inlet pipeline 16, then enters the water inlet well 22, sequentially passes through the pump station base overflowing channel 1, the vertical water outlet pipeline 2, the concave inverted siphon water outlet pipeline 4 and the water outlet well, and finally enters the downstream sewage pipeline 23;

a small amount of impurities in the sewage are intercepted by the basket grid 17, and grid slag is cleaned regularly; most of sludge is settled to the bottom of the water inlet well 22, passes through the pump station base overflowing channel 1, the vertical water outlet pipeline 2 and the concave inverted siphon water outlet pipeline 4 together with sewage, and finally enters the downstream sewage pipeline 23 along with the sewage through the inverted siphon system; but a small amount of sludge is deposited to the bottom of the pump station and the bottom of the inverted rainbow water outlet pipeline 4 in the shape of a Chinese character 'ao';

and (3) dredging working condition:

the control system firstly automatically closes the electric valve 6, then starts the water pump 8, the sewage is lifted by the water pump 8, then is pumped to the inverted-rainbow water outlet pipeline 4 in the shape of Chinese character 'ao' through the vertical water pump pressure water outlet pipeline 27 and the L-shaped water pump pressure water outlet pipeline 11, enters the water outlet well 24, and finally enters the downstream sewage pipeline 23;

sludge at the bottom of the pump station is sucked into the water pump 8 along with water suction of the water pump 8, and is discharged to a water outlet well through a vertical water pump pressure water outlet pipeline 27, an L-shaped water pump pressure water outlet pipeline 11 and a concave inverted siphon water outlet pipeline 4; meanwhile, sewage in a vertical water outlet pipeline 2 in the original pump station reversely flows to wash a base overflowing channel 1 of the pump station and wash sludge, and the sludge in the pump station can be discharged in such a way;

at the moment, the sewage flow speed in the concave inverted siphon water outlet pipeline 4 is high, the deposited sludge is washed, and the sludge finally enters the downstream sewage pipeline 23 along with the sewage after being taken away by the water flow, so that the sludge in the concave inverted siphon water outlet pipeline 4 can be discharged;

when the sewage in the pump station water inlet well 22 is lower than the lowest water level, the pump 8 is stopped, the electric valve 6 is opened, and the normal working condition is switched;

emergency working condition:

in special cases, sewage passes through the overflow port 3 at the middle upper part of the pump station, and finally forms an inverted siphon through the vertical water outlet pipeline 2 and the inverted siphon water outlet pipeline 4, so that the operation safety of the pump station is further ensured.

The control method comprises the following steps:

step one, when the pump station normally operates, the whole pump station operates under a normal working condition;

step two, when the water level in the pump station is higher than the pipe top elevation of the sewage inlet pipeline 16, the pump station is switched to the dredging working condition to operate through a control system; after the operation of the dredging working condition is finished, the operation is automatically switched to the normal working condition, and the dredging of a pump station and a pipeline is finished;

and step three, in the morning every day, the pump station is switched to a desilting working condition at regular time, and after the operation of the desilting working condition is finished, the pump station is automatically switched to a normal working condition to finish the daily desilting of the pump station and the pipeline.

And step four, under a special emergency condition, the water level in the pump station reaches the overflow port 3, the pump station automatically enters an emergency working condition at the moment and sends alarm information, and after receiving the information, operation and maintenance management personnel immediately find out the reason on site and get rid of the fault, so that the pump station enters a normal operation working condition.