CN205475442U - Water intaking structure for river course - Google Patents

Abstract

The utility model discloses a water intake structure for a river course, which comprises a siphon pipe and a filter pipe; the inlet end of the filter pipe is provided with a spherical filter cover; the outer wall of the filter pipe is provided with several water inlet holes; the outlet end of the filter pipe is provided with filter screen; the siphon includes a first siphon and a second siphon, the first siphon is connected with a suction pipe; the second siphon is connected in parallel with a water branch, the water branch is connected to a water pump, and the outlet end of the water pump is connected to the outlet end of the second siphon; The outlet end of the two siphon pipes is equipped with a filter screen; the first siphon pipe, the second siphon pipe, the suction pipe, the suction branch pipe and the suction branch pipe are equipped with electromagnetic valves. The utility model can use the water in the river channel in a siphon way, and through the parallel connection of water pumps, the efficiency of water intake can be improved when needed, so that the way is flexible and the cost is conveniently saved.

Description

A water intake structure for a river course

technical field

The utility model relates to the technical field of water supply equipment, in particular to a water intake structure for river courses.

Background technique

In mountain streams, where the slope of the riverbed is relatively steep, and there are a lot of pebbles, gravels, sand, dead wood and even boulders in the water flow, in order to prevent a large amount of sediment from entering the channels, sedimentation tanks or water intake tunnels, the bottom grille structure is often used. However, when floods or mudslides occur upstream, the bottom grid structure itself cannot adjust the upstream water level and control the water intake flow. A large amount of sediment or debris flow enters the downstream channels, sedimentation tanks or water intake tunnels through the bottom grid dam and may form silt .

In hydropower stations and water diversion projects, there are generally two ways to arrange water intake structures: one is to build a barrage on the flat terrain, and build water intakes on both sides of the barrage dam body or on both sides of the upstream bank of the barrage. This water intake method is affected by debris flow. The impact is relatively large (for example, in deep mountain and canyon areas, a debris flow along the river or ditch can silt the entire reservoir in front of the barrage); the other is not to build the barrage, but to build water intake buildings on both sides of the river bank directly according to the terrain conditions Water intake, the disadvantage of this water intake structure is that the water intake is greatly affected by the flow direction and flow of the river.

Utility model content

The purpose of the utility model is to provide a water intake structure for a river channel, which can be used to extract water in the channel through siphon or water pump, which is simple and practical.

In order to achieve the above purpose, the technical solution adopted by the utility model is: provide a water intake structure for the river, including a siphon, the water inlet of the siphon is higher than the water outlet;

The filter tube that is detachably installed on the water inlet of the siphon tube; the inlet end of the filter tube is provided with a spherical filter cover, and the tail end of the spherical filter cover is provided with external threads for connecting with the filter tube; the outer wall of the filter tube is provided with several water inlets hole; the outlet end of the filter tube is provided with a filter screen;

The siphon includes a first siphon and a second siphon, the first siphon is connected with a suction pipe, the suction pipe is connected to the suction machine, and connected to the second siphon through the suction branch;

The second siphon is connected with a water branch in parallel, the water pump is connected to the water pump, and the outlet of the water pump is connected to the outlet of the second siphon; the outlet of the second siphon is equipped with a filter; the first siphon, the second siphon, the suction pipe, Solenoid valves are installed on the gas branch pipe and the suction branch pipe.

Preferably, the filter pipe and the water inlet of the siphon are connected through a flange.

Preferably, the filter screen in the filter tube has a minimum pore size of 0.5 cm to 2 cm.

Preferably, the diameter of the water inlet on the filter cover is 1cm-3cm.

Preferably, the first siphon and the second siphon are plastic round tubes.

Preferably, a one-way valve is arranged at the outlet end of the air extractor.

In summary, the utility model has the following advantages:

The utility model can use the water in the river channel in the way of siphon, and through the parallel connection of water pumps, the efficiency of water intake can be improved when needed, so that the method is flexible, and the cost is conveniently saved.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

Among them, 1. The first siphon tube; 2. The second siphon tube; 3. Filter tube; 4. Spherical filter cover; 5. Filter screen; 6. Flange; Branch pipe; 10. Pumping branch pipe.

detailed description

Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.

In one embodiment of the present invention, as shown in FIG. 1 , a water intake structure for a river course is provided, which includes a siphon, and the water inlet of the siphon is higher than the water outlet.

The filter tube is detachably installed on the water inlet of the siphon tube; the inlet end of the filter tube 3 is provided with a spherical filter cover 4, and the tail end of the spherical filter cover is provided with an external thread for connecting with the filter tube; the outer wall of the filter tube is provided with several water inlet hole; filter screen 5 is arranged in the outlet end of the filter pipe. The spherical filter cover can filter larger debris, the water inlet hole can improve water intake efficiency, and the filter screen can further improve the filtering effect and filter out smaller debris.

The siphon includes a first siphon 1 and a second siphon 2, the first siphon is connected with a suction pipe 7, the suction pipe is connected to a suction machine 8, and connected to the second siphon through a suction branch pipe. When working, first use the air extractor to extract the air in the siphon tube to form a siphon effect, and then close the air extractor after the water flow is formed. Solenoid valve is set on the air extraction branch pipe 9, can limit air to flow back in the air extraction pipe from siphon pipe, forms negative pressure when guaranteeing air extractor work.

The second siphon is connected in parallel with a water branch pipe 10, the water pump is connected to the water pump, and the outlet end of the water pump is connected to the outlet end of the second siphon pipe; a filter screen is installed at the outlet end of the second siphon pipe. The water intake efficiency of the siphon is low. If the water intake efficiency needs to be improved, the water pump can be turned on, and the suction pipe and other related valves can be closed.

Electromagnetic valves are installed on the first siphon pipe, the second siphon pipe, the air suction pipe, the air suction branch pipe and the water suction branch pipe, and different working modes can be switched by opening different valves.

In an optimal embodiment of the utility model, the filter pipe and the water inlet of the siphon are connected through a flange 6, which is convenient for disassembly and connection.

In an optimized embodiment of the present utility model, the minimum aperture of the filter screen in the filter tube is 0.5cm-2cm; the aperture of the water inlet on the filter cover is 1cm-3cm.

In an optimized embodiment of the present utility model, the first siphon and the second siphon are plastic circular tubes.

In an optimized embodiment of the present utility model, a one-way valve is arranged at the outlet end of the air extractor.

Although the specific implementation of the utility model has been described in detail in conjunction with the accompanying drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative work still belong to the protection scope of this patent.

Claims (6)

1. A water intake structure for a river course, characterized in that: comprising A siphon, the water inlet of the siphon is higher than the water outlet; The filter tube that is detachably installed on the water inlet of the siphon tube; the inlet end of the filter tube is provided with a spherical filter cover, and the tail end of the spherical filter cover is provided with an external thread for connecting with the filter tube; the outer wall of the filter tube is provided with There are several water inlet holes; the outlet end of the filter pipe is provided with a filter screen; The siphon includes a first siphon and a second siphon, the first siphon is connected with a suction pipe, the suction pipe is connected to the suction machine, and connected to the second siphon through the suction branch pipe; The second siphon is connected in parallel with a water pump, and the water pump is connected to the water pump, and the outlet end of the water pump is connected to the outlet end of the second siphon; the outlet end of the second siphon is equipped with a filter screen; Electromagnetic valves are installed on the first siphon pipe, the second siphon pipe, the air suction pipe, the air suction branch pipe and the water suction branch pipe. 2. The water intake structure for a river course according to claim 1, characterized in that: the filter pipe and the water inlet of the siphon pipe are connected by a flange. 3. The water intake structure for a river course according to claim 1, characterized in that: the minimum aperture of the filter in the filter tube is 0.5cm~2cm. 4. The water intake structure for a river course according to claim 1, characterized in that: the diameter of the water intake hole on the filter cover is 1cm~3cm. 5. The water intake structure for a river course according to claim 1, wherein the first siphon and the second siphon are plastic round pipes. 6 . The water intake structure for a river course according to claim 1 , wherein a check valve is arranged at the outlet end of the air extractor. 6 .