Tail water discharging and filtering device of water turbine

Abstract

The utility model provides a water turbine tail water discharging and filtering device which comprises a tail water channel, a first supporting block is arranged at the left end of the inner bottom face of the tail water channel, a second supporting block is arranged at the right end of the upper surface of the tail water channel, and a filter screen is arranged between the first supporting block and the second supporting block. A filter screen is arranged in the tail water channel, a scattering part is arranged at the left end of the inner bottom surface of the tail water channel, the scattering part is arranged under the filter screen, a filter part is arranged in the tail water channel, the filter part is arranged under the filter screen, and the scattering part and the filter part are arranged left and right; tail water can be discharged and filtered after the water turbine generates electricity.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbines, in particular to a water turbine tailwater discharge filtering device. Background Art

[0002] A water turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It belongs to the category of turbine machinery in fluid machinery. Most modern water turbines are installed in hydropower stations to drive generators to generate electricity. In a hydropower station, water from an upstream reservoir is led to the water turbine through a water diversion pipe, which drives the turbine runner to rotate and drives the generator to generate electricity. The water that has done work is discharged downstream through the tailwater pipe. The higher the water head and the greater the flow rate, the greater the output power of the water turbine.

[0003] In the prior art, after the tail water is discharged, it is directly discharged downstream. Since the water contains a large amount of impurities, direct discharge will cause pollution, so the tail water needs to be filtered when it is discharged. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a turbine tailwater discharge filtering device capable of filtering tailwater after the turbine generates electricity.

[0005] The utility model is implemented by the following method: a turbine tailwater discharge filtering device comprises a tailwater channel, a first support block is arranged at the left end of the inner bottom surface of the tailwater channel, a second support block is arranged at the right end of the upper surface of the tailwater channel, a filter screen is arranged between the first support block and the second support block, a breaking piece is arranged at the left end of the inner bottom surface of the tailwater channel, and the breaking piece is arranged directly below the filter screen, a filter element is arranged in the tailwater channel, and the filter element is arranged directly below the filter screen.

[0006] Furthermore, the filter screen is arranged to be tilted upward from left to right.

[0007] Furthermore, a drainage pipe is connected to the right side of the tailwater channel.

[0008] Furthermore, the breaking up part includes a driving motor, a cavity is opened in the rear surface of the tailwater channel, the driving motor is arranged at the left end of the rear surface of the tailwater channel, the output shaft of the driving motor is arranged at the left end of the cavity, the output shaft of the driving motor is sleeved with a first gear, the lower ends between the front and rear surfaces of the tailwater channel are connected to multiple rotating shafts via bearings, the front end of the rotating shaft is arranged in the cavity, the front end of the rotating shaft is sleeved with a second gear, the first gear and the second gear are connected via a toothed belt, and the output shaft and the rotating shaft of the driving motor are sleeved with breaking up rollers.

[0009] Furthermore, the filter element includes a limiting groove, the limiting groove is opened on the inner bottom surface of the tailwater channel, activated carbon is laid in the limiting groove, and a U-shaped mesh plate for opening and closing the limiting groove is provided on the inner bottom surface of the tailwater channel via bolts.

[0010] The beneficial effects of the utility model are as follows: the utility model adds a filter element and a filter net in the device, which can realize the filtering effect of tail water discharged after the turbine generates electricity, thereby realizing the drainage filtration of the turbine and avoiding environmental pollution; the utility model has a simple structure and is easy to operate, and can effectively save manpower and material resources and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a top view of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] See also Figure 1 and Figure 2 As shown, the utility model provides an embodiment: a water turbine tailwater discharge filtering device, comprising a tailwater channel 1, a first support block 2 is provided at the left end of the inner bottom surface of the tailwater channel 1, a second support block 3 is provided at the right end of the upper surface of the tailwater channel 1, a filter screen 4 is provided between the first support block 2 and the second support block 3, a dispersing piece 5 is provided at the left end of the inner bottom surface of the tailwater channel 1, and the dispersing piece 5 is provided directly below the filter screen 4, and a filter element 6 is provided in the tailwater channel 1, and the filter element 6 is provided directly below the filter screen 4. Through the effect of the filter screen 4, the tailwater can be filtered when it is discharged, and the large particles in the tailwater can be filtered out, and then the sludge at the bottom of the tailwater channel 1 can be dispersed by the dispersing piece 5 to avoid blockage, and the tailwater can be filtered twice by the filter element 6, so that environmental pollution can be avoided and it is convenient for next use.

[0015] Please continue reading Figure 1 As shown, in one embodiment of the utility model, the filter screen 4 is arranged to tilt upward from left to right, so as to facilitate the filtering effect.

[0016] Please continue reading Figure 1 As shown, in one embodiment of the utility model, the right side of the tailwater channel 1 is connected with a drainage pipe 11, so as to facilitate the drainage of the tailwater channel 1.

[0017] Please continue reading Figure 1 and Figure 2As shown, in one embodiment of the utility model, the dispersing member 5 includes a driving motor 51, a cavity 52 is provided on the rear surface of the tailwater channel 1, the driving motor 51 is provided at the left end of the rear surface of the tailwater channel 1, the output shaft of the driving motor 51 is provided at the left end of the cavity 52, a first gear 53 is sleeved on the output shaft of the driving motor 51, a plurality of rotating shafts 54 are connected to the lower ends between the front and rear surfaces of the tailwater channel 1 through bearings, the front end of the rotating shaft 54 ​​is provided in the cavity 52, a second gear 55 is sleeved on the front end of the rotating shaft 54, the first gear 53 and the second gear 55 are connected and provided through a toothed belt 56, and a dispersing roller 57 is sleeved on the output shaft and the rotating shaft of the driving motor 51. The driving motor 51 can drive the first gear 53 to rotate, and the rotation of the first gear 53 can drive the second gear 55 to rotate through the toothed belt 56, so that the dispersing roller 57 can rotate, and the dispersing effect of the sludge can be achieved.

[0018] Please continue reading Figure 1 As shown, in one embodiment of the utility model, the filter element 6 includes a limiting groove (not shown), the limiting groove is provided on the inner bottom surface of the tailwater channel 1, activated carbon 61 is laid in the limiting groove, and a U-shaped mesh plate 63 for opening and closing the limiting groove is provided on the inner bottom surface of the tailwater channel 1 through bolts 62. The tailwater flows through the activated carbon 61, thereby achieving the filtering effect of the tailwater.

[0019] The driving motor and activated carbon in the present invention are both prior art, which can be clearly understood by those skilled in the art and will not be described in detail here.

[0020] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A turbine tailwater discharge filtering device, characterized in that: It includes a tailwater channel, wherein a first support block is arranged at the left end of the inner bottom surface of the tailwater channel, a second support block is arranged at the right end of the upper surface of the tailwater channel, a filter net is arranged between the first support block and the second support block, a breaking piece is arranged at the left end of the inner bottom surface of the tailwater channel, and the breaking piece is arranged directly below the filter net, and a filter element is arranged in the tailwater channel, and the filter element is arranged directly below the filter net.

2. A turbine tailwater discharge filtering device according to claim 1, characterized in that: The filter screen is arranged to be tilted upward from left to right.

3. The water turbine tailwater discharge filtering device according to claim 1, characterized in that: The right side of the tailwater channel is connected with a drainage pipe.

4. A turbine tailwater discharge filtering device according to claim 1, characterized in that: The dispersing part includes a driving motor, a cavity is provided on the rear surface of the tailwater channel, the driving motor is arranged on the left end of the rear surface of the tailwater channel, the output shaft of the driving motor is arranged at the left end of the cavity, a first gear is sleeved on the output shaft of the driving motor, a plurality of rotating shafts are connected to the lower ends between the front and rear surfaces of the tailwater channel via bearings, the front end of the rotating shaft is arranged in the cavity, a second gear is sleeved on the front end of the rotating shaft, the first gear and the second gear are connected via a toothed belt, and dispersing rollers are sleeved on the output shaft and the rotating shaft of the driving motor.

5. The water turbine tailwater discharge filtering device according to claim 1, characterized in that: The filter element comprises a limiting groove, the limiting groove is provided on the inner bottom surface of the tailwater channel, activated carbon is laid in the limiting groove, and a U-shaped mesh plate for opening and closing the limiting groove is provided on the inner bottom surface of the tailwater channel via bolts.

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