CN207392412U - One kind is drained off floodwaters, drainage pumping stations structure - Google Patents

Abstract

The utility model discloses a flood and waterlogging pumping station structure, which belongs to the technical field of water conservancy engineering and includes a pumping station forecourt. The forebay partition wall (4) is set vertically, and the forebay connecting gate (8) is arranged on the forebay partition wall (4), and the forebay partition wall (4) separates the forebay of the pumping station into a flood discharge forebay (5) It is connected with the front pool for flood drainage (6), the front pool for flood drainage (5) and the front pool for drainage (6) through the front pool connecting gate (8); the flood drainage front pool (5) is provided with a flood discharge gate (1), A flood drainage gate (2) is provided on the front pond (6) for flood drainage. The utility model can simultaneously realize the two functions of lake water discharge and internal waterlogging discharge in the same forebay, and has the advantages of not affecting each other and saving land; it can also be used when the flow rate is large in a single case and the original discharge cannot meet the requirements. Auxiliary drainage scheme.

Description

A flood and waterlogging pumping station structure

technical field

The utility model relates to a flood and waterlogging pumping station structure, which belongs to the technical field of water conservancy engineering.

Background technique

At present, the ordinary pumping station has a single drainage method and a simple structure. It simply discharges the accumulated water in the river or in the field for a period of time. It is difficult to realize the function of simultaneously discharging floods and waterlogging without affecting each other. Especially for this type of pumping station that is close to both important waters and agricultural areas, it is difficult to take both aspects into consideration at the same time. Where water bodies gather, often agricultural development is also the most crucial part of the comprehensive development of the area. In the season of heavy rainfall, a large amount of property loss will often be caused because the lake water drainage and waterlogging drainage cannot be operated at the same time, or the designed flow requirements cannot be met.

Utility model content

In order to overcome the shortage that the existing pumping stations cannot simultaneously discharge floods in the water area and waterlogging in the fields, the purpose of this utility model is to provide a pumping station structure for flood and flood drainage. This type of pumping station can simultaneously realize the two functions of lake water discharge and internal waterlogging in the same forebay; when the demand for single drainage of flood or waterlogging is large, an auxiliary drainage scheme can be used.

The technical scheme adopted by the utility model to solve the technical problem is a pumping station structure for flood drainage and waterlogging, including a pumping station forebay, and a forebay partition wall is arranged in the forebay of the pumping station along the water flow direction, and the forebay partition wall is vertically The forebay connecting gate is set on the partition wall of the forebay, and the forebay partition wall divides the forebay of the pumping station into a flood discharge forebay and a flood drainage forebay, which are connected through the forebay connecting gate; There is a flood discharge sluice on the flood discharge front pond, and a flood drainage sluice on the flood discharge front pond.

Preferably, the width of the front pool partition wall is variable, and the front pool partition wall includes a first long section, a gradual change section, and a second long section arranged in sequence along the water flow direction, and the first long strip section, the gradual change section, the second long section The width of the two long strips becomes smaller gradually, and the cross-sectional shape of the gradient section is a right-angled trapezoid.

Preferably, the forebay communication gate is located at the front end of the forebay partition wall, close to the water inlet of the forebay of the pumping station.

Preferably, the forebay connecting gate is provided on the first long section of the forecourt partition wall, and the forebay communicating gate is opened and closed by a screw hoist.

Preferably, the partition wall of the forebay is biased, and the cross section of the flood drainage forebay is smaller than that of the flood drainage forebay.

Preferably, the front end of the forebay partition wall extends to the diversion section and serves as an arc-shaped diversion pier for the diversion section.

Preferably, the curved diversion pier and the partition wall of the forebay are all reinforced concrete structures.

Preferably, the pump station forebay has a trapezoidal cross section, and the diffusion angle of the flood drainage forebay is slightly larger than that of the flood drainage forebay.

Preferably, the flood discharge gate is arranged between the forebay of the pumping station and the diversion river, and the flood discharge gate is arranged on the side wall of the forebay of the pumping station.

Compared with the prior art, the beneficial effects of the utility model are:

First, a partition wall is set in the middle of the forebay to divide the forebay into a flood discharge forebay and a flood drainage forebay. The forebays on both sides are connected by a forebay connecting gate, which can be opened when auxiliary drainage is required. The water area is connected with the diversion river, followed by the flood discharge front pool of the pumping station, which is positive water inflow; the water drainage uses the lateral water intake of the flood drainage front pool, and the two do not affect each other. Its advantages are: when the flood is discharged with a small flow, the connecting gate of the forebay is closed, and the water enters the inlet pool of the pumping station from the flood discharge forebay for pumping and drainage; when the flood is discharged with a large flow, the connecting gate of the forebay is opened, the drainage gate is closed, and the water flows into the drainage Auxiliary flood drainage in the forebay; when draining water with a small flow, close the connecting gate of the forebay, and the water enters the inlet pool of the pumping station from the drainage forebay for pumping; when draining water with a large flow, open the connecting gate of the forebay, close the flood discharge gate, and the water flows into The flood discharge forebay is used for auxiliary drainage; when flood drainage and waterlogging are required to be carried out at the same time, the flood discharge gate and the flood drainage gate are opened together, and the connecting gate of the forebay in the middle of the partition wall is closed, and the drainage is carried out separately. The width of the partition wall changes, from the position of the connecting gate of the front pool to the section of the inlet pool, the width gradually narrows, and the shape of the bottom surface of the gradual change section is an isosceles trapezoid. The flood discharge forebay and flood drainage forebay are separated by a partition wall, and the front end of the partition wall is set as an arc-shaped diversion pier in the river diversion section, which can optimize and adjust the flow state to a certain extent. The connection gate of the forebay is located in the front part of the partition wall, close to the water inlet. The connecting gate of the forebay adopts a screw hoist. The front diversion piers and partition walls are reinforced concrete structures. The bottom area of the front pool is trapezoidal, and one side of the drainage inlet has a slightly larger diffusion range. The utility model divides the forebay of the pumping station into two parts by a partition wall, and the middle part is connected by a connecting gate, so that flood and waterlogging can be carried out simultaneously without affecting each other. It is guaranteed that both functions are realized at the same time.

Second, the pumping station of the utility model can drain waterlogged water and flood water at the same time, and has the advantages of not affecting each other and saving land. In a single situation where the flow rate is large and the original drainage volume cannot meet the requirements, an auxiliary drainage scheme can also be used. The utility model can improve the drainage capacity, and can ensure the basic safety of the water area and agricultural land when encountering extreme weather, or minimize the loss to a certain extent, and at the same time, the structural form can save land, be beautiful and convenient for construction.

Description of drawings

Fig. 1 is a structural schematic diagram of the pumping station for flood and flood drainage of the utility model.

In the figure, 1 flood discharge sluice, 2 waterlogging sluice, 3 diversion pier, 4 forebay partition wall, first long section 41, gradual transition section 42, second long section 43, 5 flood drainage forebay, 6 waterlogging forebay , 7 self-drainage channels, 8 forebay connecting gates, 9 water pump units.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, a flood and flood drainage pumping station structure includes a pumping station forebay, a forebay partition wall 4 is arranged in the pumping station forebay along the water flow direction, the forebay partition wall 4 is vertically arranged, and the forebay partition wall 4 is provided with a forebay connecting gate 8, and the forebay partition wall 4 divides the forebay of the pumping station into a flood discharge forebay 5 and a flood drainage forebay 6, and the flood discharge forebay 5 and the flood drainage forebay 6 are connected through the forebay connecting gate 8 pass; the flood discharge front pond 5 is provided with a flood discharge gate 1, and the flood discharge front pond 6 is provided with a flood discharge gate 2.

The width of the front pool partition wall 4 is variable, and the front pool partition wall 4 includes a first strip section 41, a gradual transition section 42, a second strip section 43 arranged in sequence along the water flow direction, a first strip section 41, a transition section 42 , The width of the second elongated section 43 becomes smaller gradually, and the cross-sectional shape of the gradual change section 42 is a right-angled trapezoid.

The forebay connecting gate 8 is located at the front end of the forebay partition wall 4, near the water inlet of the forebay for the pumping station.

The first long section 41 of the forebay partition wall 4 is provided with the forebay connecting gate 8, and the forebay communicating gate 8 is opened and closed by a screw hoist.

The pool partition wall 4 is arranged in a biased manner, and the cross section of the front pool 6 for flood drainage is smaller than the cross section of the front pool 5 for flood drainage.

The front end of the forebay partition wall 4 extends to the diversion section and serves as an arc-shaped diversion pier 3 for the diversion section.

The curved diversion pier 3 and the forebay partition wall 4 are both reinforced concrete structures.

The cross-section of the forebay of the pumping station is trapezoidal, and the diffusion angle of the flood drainage forebay 6 is slightly larger than that of the flood drainage forebay 5 .

The flood discharge gate 1 is arranged between the forebay of the pumping station and the diversion river, and the flood discharge gate 2 is arranged on the side wall of the forebay of the pumping station.

When the flow of the flood discharge forebay 5 meets the requirements for small flow discharge, close the forebay connecting gate 8, and the water enters the water inlet pool of the pumping station unit 9 from the flood discharge forebay 5 for pumping; for large flow flood discharge, the flood discharge forebay 5 When the flow rate does not meet the requirements, open the forebay connecting gate 8, close the drainage gate 2, and water flows into the drainage forebay 6 for auxiliary flood discharge; when the flow rate of the forebay 6 meets the requirements for small flow drainage, close the forebay connecting gate 8, The water enters the water inlet pool of the pump station unit 9 from the drainage forebay 6 for pumping and drainage; when the flow of the flood drainage forebay 6 cannot meet the requirements, open the forebay connecting gate 8 and close the flood discharge gate 1, and the water flows into the flood drainage forebay 5. Perform auxiliary drainage; when flood drainage and drainage are required at the same time, flood drainage gate 1 and flood drainage gate 2 are opened together, and the forebay connecting gate 8 in the middle of the partition wall is closed, and drainage is performed separately.

The flood and waterlogging pumping station structure of the utility model realizes functions such as drainage and auxiliary drainage through cooperation among the flood discharge forebay 5 , the forebay 6 , the forebay partition wall 4 and the forebay connecting gate 8 .

The width of the front pool partition wall 4 is set from thick to thin, and the thick part is provided with the front pool connecting gate 8 to ensure the stability of the opening and closing of the gate. The middle section is a gradual section, which guides the water flow and prevents bad flow patterns such as eddies.

The partition wall in the river diversion section evolves into an arc-shaped diversion pier 3, which can effectively and stably enter water.

The forebay connecting gate 8 is designed at the front of the partition wall, considering that the water flow can flow into the auxiliary drainage area as soon as possible during the auxiliary drainage, and then enter the unit smoothly.

The drainage sluice 2 is generally connected to the drainage culvert in the farmland, and the discharge flow is controlled by the opening and closing of the gate. The screw hoist can be easily installed and does not take up space.

The waters in the flood discharge gate 1 contact area, such as the inner lake, can be discharged when the water volume is too large.

The self-drainage channel 7 is when the water level of the outer river is lower than the water level of the inner lake, and the excess water in the area can be discharged directly by self-drainage.

Claims (9)

1. one kind is drained off floodwaters, drainage pumping stations structure, including Forebay of Pumping Station, it is characterized in that, it is set in the Forebay of Pumping Station along water (flow) direction There is forebay partition wall（4）, forebay partition wall（4）It is vertically arranged, forebay partition wall（4）It is equipped with forebay and connects lock（8）, forebay partition wall（4） Forebay of Pumping Station is divided into forebay of drainning off floodwaters（5）With water drainage forebay（6）, forebay of drainning off floodwaters（5）With water drainage forebay（6）It is connected by forebay Lock（8）It is connected；It drains off floodwaters forebay（5）It is equipped with the lock (1 that drains off floodwaters）, forebay of draining flooded fields（6）It is equipped with water drainage lock（2）.

2. one kind according to claim 1 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the forebay partition wall（4）Width is Variation, forebay partition wall（4）Including the first strip section set gradually along water (flow) direction（41）, transition（42）, the second strip Section（43）, the first strip section（41）, transition（42）, the second strip section（43）Width tapers into, transition（42）Cross section Shape is right-angled trapezium.

3. one kind according to claim 1 or 2 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the forebay connects lock（8） Positioned at forebay partition wall（4）Front end, close to Forebay of Pumping Station water inlet.

4. one kind according to claim 3 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the forebay partition wall（4）First Strip section（41）It is upper that the forebay connection lock is set（8）, forebay connection lock（8）It is opened and closed using worm-type open-close machine.

5. one kind according to claim 4 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the forebay partition wall（4）Deviation is set It puts, forebay of draining flooded fields（6）Cross section be less than and drain off floodwaters forebay（5）Cross section.

6. one kind according to claim 5 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the forebay partition wall（4）Prolong front end Extend irrigation channel section and as the arc diversion pier of irrigation channel section（3）.

7. one kind according to claim 6 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the arc diversion pier（3）, it is preceding Pond partition wall（4）It is reinforced concrete structure.

8. one kind according to claim 7 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the Forebay of Pumping Station cross section is It is trapezoidal, the water drainage forebay（6）Angle of flare slightly larger than the forebay of drainning off floodwaters（5）Angle of flare.

9. one kind according to claim 8 is drained off floodwaters, drainage pumping stations structure, it is characterized in that, the lock (1 that drains off floodwaters）It is arranged on pump It stands between forebay and irrigation channel, drain flooded fields lock（2）It is arranged on Forebay of Pumping Station side wall.