Device for regulating and controlling urban and rural water supply flow of irrigation channel

Abstract

The utility model discloses an irrigation channel urban and rural water supply flow regulation and control device which comprises a channel confluence section, a water taking channel is installed at a water outlet of the channel confluence section, and a confluence section wing wall is installed at the connecting position of the water taking channel and the channel confluence section. And a flow regulation and control valve well is mounted on one side of the wing wall of the confluence section in the water taking channel. The utility model has the beneficial effects that the flow regulation and control valve well is arranged at the downstream of the channel confluence section, and the butterfly valve for regulating and controlling the water taking quantity is arranged between the valve front water inlet steel pipe and the valve rear water outlet steel pipe in the flow regulation and control valve well, so that the water taking quantity can be regulated and controlled according to the actual water level height in the irrigation channel when the urban and rural water supply pipeline takes water; the opening degree of the butterfly valve is adjusted and controlled, so that accurate adjustment and control of water taking flow of urban and rural water supply pipelines are achieved, and the phenomena that water taking is insufficient or water is abandoned frequently and the service life of water taking equipment is shortened are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of taking water from irrigation channels for urban and rural water supply projects, and in particular to a control device for taking urban and rural water supply flow from irrigation channels. Background Art

[0002] In urban and rural water supply projects, water is taken from irrigation channels mainly by a combined arrangement of regulating gates and diversion gates, that is, a regulating gate is set on the main line, and the diversion gate is located at the front end of the water intake pipeline confluence pool; during the irrigation season, the regulating gate is partially opened to ensure the irrigation water volume and the water head of the water intake pipeline; in the non-irrigation season, the main line regulating gate is closed to ensure the water intake flow of the water supply pipeline.

[0003] Although the current water intake method of jointly arranging regulating gates and diversion gates can realize water intake from irrigation channels for urban and rural water supply, the gate opening and water intake volume are nonlinearly related during the water intake process. Under normal circumstances, the channel irrigation flow has a certain fluctuation range within the design range, especially for irrigation main canals, the flow fluctuation range is relatively large, so the gate opening is frequently regulated and the water intake flow is difficult to control, resulting in insufficient water intake or frequent water abandonment in the water supply pipeline. In addition, under normal circumstances, the irrigation flow is much larger than the water supply intake flow, resulting in small gate size, small operating opening, and high noise, which affects the stability of the gate screw and reduces the service life of the gate. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a control device for the flow rate of urban and rural water supply for irrigation channels, which can accurately draw water according to the water volume in the irrigation channel, avoid the phenomenon of frequent water abandonment when the water is insufficient, and at the same time extend the service life of the water-drawing facilities.

[0005] The utility model is achieved through the following technical scheme: the utility model proposes a regulating device for irrigation channel to take urban and rural water supply flow, including a channel confluence section, a water intake channel is installed at the water outlet of the channel confluence section, a confluence section wing wall is installed at the connection between the water intake channel and the channel confluence section, a flow regulating valve well is installed in the water intake channel on one side of the confluence section wing wall, a trash grille is installed in the water intake channel on one side of the water inlet of the flow regulating valve well, a stilling pool is installed in the water intake channel on one side of the water outlet of the flow regulating valve well, a pre-valve water inlet steel pipe is installed at the water inlet of the flow regulating valve well, a post-valve water outlet steel pipe is installed at the water outlet of the flow regulating valve well, and a butterfly valve is installed between the pre-valve water inlet steel pipe and the post-valve water outlet steel pipe.

[0006] Furthermore, a diversion port is provided at the inlet of the energy dissipation basin, and the diversion port is a flared structure.

[0007] By adopting the above technical solution, the diversion port can smoothly guide the water flowing through the butterfly valve into the stilling pool.

[0008] Furthermore, the small end of the diversion port faces the flow control valve well, and the large end of the diversion port faces the energy dissipation pool.

[0009] By adopting the above technical solution, it is ensured that when the water discharged from the water outlet steel pipe behind the valve flows through the diversion port, the water pressure is released by increasing the area of ​​the water flow channel, thereby making the water flowing into the energy dissipation pool smoother.

[0010] Furthermore, a pre-valve water level marker is installed at the water inlet of the flow control valve well in the water intake channel, and a channel water level marker is also installed at the channel confluence section.

[0011] By adopting the above technical solution, the water level rod before the valve can assist the workers to control the water level in front of the flow control valve well, and the channel water level rod can assist the workers to control the water level in the confluence section of the channel.

[0012] Furthermore, the water level in the water intake channel in front of the flow control valve well is 1 to 1.5 times the diameter of the water intake pipe, and the water level in the water intake channel in front of the flow control valve well is not less than 0.5 m.

[0013] By adopting the above technical solution, it can be ensured that the water flowing through the butterfly valve has sufficient water pressure when taking water, thereby realizing automatic drainage of water.

[0014] Furthermore, a valve well inlet is installed at the top of the flow control valve well, and a ladder is provided on the inner wall of the flow control valve well.

[0015] By adopting the above technical solution, the staff can easily enter the flow control valve well with the help of the valve well inlet to control the butterfly valve.

[0016] Furthermore, the water inlet steel pipe before the valve and the water outlet steel pipe after the valve are both plugged into the flow control valve well, and the butterfly valve and the water inlet steel pipe before the valve and the water outlet steel pipe after the valve are both flange-connected.

[0017] By adopting the above technical solution, it can be ensured that the butterfly valve is reliably installed and fixed in the flow control valve well.

[0018] Furthermore, the trash grille is plugged into the water intake channel, and the corners of the wing walls of the confluence section are arc-shaped structures.

[0019] By adopting the above technical solution, the dirt screen can filter the debris in the water to ensure the cleanliness of the water entering the butterfly valve after drainage.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] At present, the water intake method of combining control gates and water diversion gates can realize water intake from irrigation channels for urban and rural water supply. However, the gate opening and water intake are nonlinearly related during the water intake process. Under normal circumstances, the irrigation flow of the channel has a certain amplitude within the design range. Especially for the main irrigation canal, the flow amplitude is relatively large, so the gate opening is frequently regulated and the water intake flow is difficult to control, resulting in insufficient water intake or frequent water abandonment in the water supply pipeline. In addition, under normal circumstances, the irrigation flow is much larger than the water supply intake flow, resulting in a small gate size and a large operating opening degree. The problem of too small a size and high noise affecting the stability of the gate screw and reducing the service life of the gate is that the utility model arranges a flow control valve well downstream of the channel confluence section, and installs a butterfly valve for regulating the water intake volume between the water inlet steel pipe before the valve and the water outlet steel pipe after the valve in the flow control valve well. When taking water, the urban and rural water supply pipelines can adjust the opening of the butterfly valve according to the actual water level in the irrigation channel, so as to achieve accurate regulation of the water intake flow of the urban and rural water supply pipelines, avoid insufficient water intake or frequent water abandonment, and extend the service life of the water intake equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a plan view of the control device for taking urban and rural water supply flow through the irrigation channel of the utility model;

[0023] Figure 2 It is a vertical view of the regulating device for taking urban and rural water supply flow into the irrigation channel described in the utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Trash screen; 2. Channel confluence section; 3. Confluence section wing wall; 4. Water inlet steel pipe before valve; 5. Butterfly valve; 6. Energy dissipation basin; 7. Water outlet steel pipe after valve; 8. Flow control valve well; 9. Valve well inlet; 10. Diversion port; 11. Channel water level benchmark; 12. Water level benchmark before valve; 13. Water intake channel. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] like Figure 1-Figure 2As shown, the control device for the irrigation channel to take urban and rural water supply flow in this embodiment includes a channel confluence section 2, a water intake channel 13 is installed at the water outlet of the channel confluence section 2, a confluence section wing wall 3 is installed at the connection between the water intake channel 13 and the channel confluence section 2, a flow control valve well 8 is installed on one side of the confluence section wing wall 3 in the water intake channel 13, a trash screen 1 is installed on the water inlet side of the flow control valve well 8 in the water intake channel 13, a stilling pool 6 is installed on the water outlet side of the flow control valve well 8 in the water intake channel 13, and a valve forward is installed at the water inlet of the flow control valve well 8. A water steel pipe 4 and a water outlet steel pipe 7 are installed at the water outlet of the flow control valve well 8, and a butterfly valve 5 is installed between the water inlet steel pipe 4 before the valve and the water outlet steel pipe 7 after the valve. By controlling the opening of the butterfly valve 5, accurate water intake can be achieved according to the water level in the channel confluence section 2. The water level in the water intake channel 13 in front of the flow control valve well 8 is 1 to 1.5 times the diameter of the water intake pipe, and the water level in the water intake channel 13 in front of the flow control valve well 8 is not less than 0.5m. It can always ensure that the water flowing through the butterfly valve 5 has sufficient water pressure when taking water, thereby realizing automatic drainage of water.

[0028] like Figure 1-Figure 2 As shown, in this embodiment, a diversion port 10 is opened at the inlet of the energy dissipation pool 6. The diversion port 10 is a flared structure. The diversion port 10 can smoothly guide the water flowing through the butterfly valve 5 into the energy dissipation pool 6. The small end of the diversion port 10 faces the flow control valve well 8, and the large end of the diversion port 10 faces the energy dissipation pool 6, ensuring that the water discharged from the water outlet steel pipe 7 behind the valve is released by increasing the area of ​​the water flow channel when flowing through the diversion port 10, so that the water entering the energy dissipation pool 6 flows more smoothly.

[0029] like Figure 1-Figure 2 As shown, in this embodiment, a pre-valve water level mark rod 12 is also installed at the water inlet of the flow control valve well 8 in the water intake channel 13, and a channel water level mark rod 11 is also installed at the channel confluence section 2. The pre-valve water level mark rod 12 can assist the workers to control the water level in front of the flow control valve well 8, and the channel water level mark rod 11 can assist the workers to control the water level of the channel confluence section 2.

[0030] like Figure 1-Figure 2As shown, in this embodiment, a valve well inlet 9 is also installed on the top of the flow control valve well 8, and the flow control valve well 8 is also equipped with a ladder on the inner wall. With the help of the valve well inlet, the staff can easily enter the flow control valve well 8 to control the butterfly valve 5. The water inlet steel pipe 4 before the valve and the water outlet steel pipe 7 after the valve are both plugged into the flow control valve well 8, and the butterfly valve 5 and the water inlet steel pipe 4 before the valve and the water outlet steel pipe 7 after the valve are flange-connected, which can ensure that the butterfly valve 5 is reliably installed and fixed in the flow control valve well 8, the trash grille 1 is plugged into the water intake channel 13, and the corner of the confluence section wing wall 3 is an arc structure. The trash grille 1 can filter debris in the water to ensure the cleanliness of the water after drainage.

[0031] The specific implementation process of this embodiment is as follows: when it is necessary to divert water in the irrigation channel to the urban water supply pipeline for use, first install a flow control valve well 8 on one side of the channel confluence section 2, and install a butterfly valve 5 between the pre-valve water supply steel pipe 4 and the post-valve water outlet steel pipe 7 in the flow control valve well 8, and then only connect the post-valve water outlet steel pipe 7 of the flow control valve well 8 to the energy dissipation pool 6 to take the water in the channel confluence section 2. When taking water in the channel confluence section 2 into the urban water intake pipeline, a flow control valve well 8 is arranged downstream of the channel confluence section 2, and a butterfly valve 5 for water intake volume control is installed between the pre-valve water supply steel pipe 4 and the post-valve water outlet steel pipe 7 in the flow control valve well 8, so that the urban and rural water supply pipeline can adjust the opening of the butterfly valve 5 according to the actual water level in the irrigation channel when taking water, so as to realize the precise control of the water intake flow of the urban and rural water supply pipeline, avoid the phenomenon of insufficient water intake or frequent water abandonment, and extend the service life of the water intake equipment.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control device for the flow rate of urban and rural water supply taken by irrigation channels, characterized in that: The invention comprises a channel confluence section (2), wherein a water intake channel (13) is installed at the water outlet of the channel confluence section (2), a confluence section wing wall (3) is installed at the connection portion between the water intake channel (13) and the channel confluence section (2), a flow control valve well (8) is installed in the water intake channel (13) on one side of the confluence section wing wall (3), a trash screen (1) is installed in the water intake channel (13) on the water inlet side of the flow control valve well (8), a stilling pool (6) is installed in the water intake channel (13) on the water outlet side of the flow control valve well (8), a pre-valve water inlet steel pipe (4) is installed at the water inlet of the flow control valve well (8), a post-valve water outlet steel pipe (7) is installed at the water outlet of the flow control valve well (8), and a butterfly valve (5) is installed between the pre-valve water inlet steel pipe (4) and the post-valve water outlet steel pipe (7).

2. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 1, characterized in that: A diversion port (10) is provided at the inlet of the stilling basin (6), and the diversion port (10) is a flared structure.

3. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 2, characterized in that: The small end of the diversion port (10) faces the flow control valve well (8), and the large end of the diversion port (10) faces the energy dissipation pool (6).

4. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 1, characterized in that: A pre-valve water level marker (12) is also installed at the water inlet of the flow control valve well (8) in the water intake channel (13), and a channel water level marker (11) is also installed at the channel confluence section (2).

5. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 1, characterized in that: The water level in the water intake channel (13) in front of the flow control valve well (8) is 1 to 1.5 times the diameter of the water intake pipe, and the water level in the water intake channel (13) in front of the flow control valve well (8) is not less than 0.5 m at the lowest.

6. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 1, characterized in that: A valve well inlet (9) is also installed at the top of the flow control valve well (8), and a ladder is also provided on the inner wall of the flow control valve well (8).

7. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 1, characterized in that: The water inlet steel pipe (4) before the valve and the water outlet steel pipe (7) after the valve are both plugged into the flow control valve well (8), and the butterfly valve (5) is flange-connected to the water inlet steel pipe (4) before the valve and the water outlet steel pipe (7) after the valve.

8. The device for regulating the flow rate of urban and rural water supply taken by irrigation channels according to claim 1, characterized in that: The trash screen (1) is plugged into the water intake channel (13), and the corners of the confluence section wing wall (3) are arc-shaped structures.

Images