A recirculating tailrace canal cooler

Abstract

The application belongs to the technical field of tail water coolers, and particularly relates to a circulating tail water channel cooler, which comprises a cooler body mainly used for cooling water in a tail water channel, a protection mechanism, side plates fixed on both sides of the cooler body through bolts, back-shaped plates fixedly installed on the top end faces of the two side plates close to one side of the cooler body, first sliding blocks slidingly connected in the back-shaped plates, first rotating rods arranged on the opposite sides of the two back-shaped plates, second rotating rods arranged on the opposite sides of the two side plates, and a conveying belt arranged on the first rotating rods and the second rotating rods. The application is mainly used for solving the problem that when garbage, branches or leaves and other sundries pass through the cooler, part of the sundries will block the cooler, thereby reducing the cooling effect of the cooler on water flow.

Description

Technical Field

[0001] This invention belongs to the technical field of tailwater coolers, specifically a circulating tailwater channel cooler. Background Technology

[0002] After passing through the turbine, the water carried by the flow is absorbed and utilized by the turbine, becoming tailwater. The channel through which the tailwater is discharged from the power plant to the downstream riverbed is called the tailrace canal. In order to reduce the temperature of the tailwater, a tailwater cooler needs to be installed in the tailrace canal to cool it down.

[0003] Its working principle is as follows: when water passes through the unit's cooler, it carries away the heat generated by the unit's operation and is discharged into the circulating water pool through the drainage pipe; the water pump draws water from the circulating water pool to the unit's cooler, and then through the tailwater cooler located in the tailwater, it exchanges heat with the river water, reducing its temperature, and then returns to the circulating water pool. The unit's cooling water is in a reciprocating circulation system, carrying away the heat generated by the unit's operation through the flowing, cooler natural river water.

[0004] However, when the cooler is in use, debris such as garbage, branches, or leaves floating on the water surface will flow through the cooler with the water flow. When these debris passes through the cooler, some of them will clog it, thus reducing the cooler's cooling effect on the water flow.

[0005] In view of this, the present invention provides a circulating tailwater cooler to solve the above-mentioned technical problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a circulating tailwater channel cooler.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a circulating tailwater channel cooler according to the present invention, comprising a cooler body; the cooler body is installed in the tailwater channel and is mainly used to cool the water in the tailwater channel;

[0008] It also includes a protective mechanism; the protective mechanism includes,

[0009] Two side plates are fixed to both sides of the cooler body with bolts.

[0010] A U-shaped plate is fixedly installed on the top end face of both side plates, on the side closest to the cooler body;

[0011] The first slider is slidably connected inside each of the herringbone plates, and the first slider is initially located at the lowest end of the inner cavity of the herringbone plate.

[0012] The first rotating rod is provided on one side of the two spiral plates opposite each other; the rotating shafts inside the first rotating rods extend into the first sliders on both sides and are rotatably connected to the first sliders.

[0013] The second rotating rod is provided on one side opposite to the two side plates; the rotating shafts inside the second rotating rods extend into the side plates on both sides and are rotatably connected to the side plates;

[0014] A conveyor belt is provided on the first and second rotating rods, and the conveyor belt is inclined under the limitation of the first and second rotating rods; the conveyor belt is made of a filter screen;

[0015] The first gear is fixedly connected to the outer surface of the first rotating rod extending into the first slider, and the first gear is also fixedly connected to the outer surface of the rotating shaft on the first rotating rod.

[0016] A drive rod is rotatably connected to the inner wall of the first slider below the first gear, and the drive rod extends out of the first slider;

[0017] The second gear is fixedly connected to the outer surface of the drive rod, and the second gear meshes with the first gear.

[0018] Rotating blade, the driving rod is fixedly connected to the side away from the spiral plate;

[0019] The collection chamber is mounted on the top of the cooler body via a support frame, and filter holes are provided in the inner wall of the collection chamber; the highest point of the conveyor belt in its initial state is higher than the collection chamber; a filter plate is fixedly connected to the rear of the collection chamber.

[0020] On opposite sides of the two blades, floats are fixedly connected to the outer surface of the drive rod; slides are provided in the inner walls of the two side plates; a second slider is slidably connected in the slide; the rotating shaft in the second rotating rod extends into the second slider and is rotatably connected to the second slider; the second slider is fixedly connected to the end face of the slide away from the cooler body by an elastic rope;

[0021] Triangular blocks are fixedly connected to both end faces of the second slider;

[0022] The outer surface of the conveyor belt is fixed with evenly arranged baffles;

[0023] The cooler body and the bottom end face of the side plate are fixedly connected to a base; a flow channel is opened in the base and the flow channel penetrates the upper surface of the base; a guide plate is fixedly connected to the upper surface of the base.

[0024] The surface of the flow channel is a smooth surface;

[0025] A filter cloth layer is fixedly connected inside the flow channel;

[0026] A cleaning plate is rotatably connected between the filter cloth layer and the surface of the flow channel.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. The circulating tailwater cooler of the present invention, since the conveyor belt is made of a filter screen, the water passing through the conveyor belt can flow through the conveyor belt to one side of the cooler body. However, the garbage, branches or leaves carried by the water flow will be blocked on the conveyor belt, thereby preventing too much garbage, branches or leaves from entering the cooler body and causing blockage. During the counterclockwise rotation of the conveyor belt, the garbage, branches or leaves blocked by the conveyor belt can be rotated, and then the garbage, branches or leaves will fall into the collection bin for storage.

[0029] 2. The circulating tailwater cooler of the present invention, by setting a float on the drive rod, allows the float to adjust its position at different liquid levels, thereby adjusting the tilt angle of the conveyor belt. This ensures that the conveyor belt is positioned above the liquid level at its highest point, preventing debris such as garbage, branches, or leaves carried by the water flow from flowing over the conveyor belt when the liquid level rises. This would prevent the collection of such debris and increase the risk of clogging the cooler body. Since a filter plate is fixedly connected to the rear of the collection chamber, the filter plate can block the flowing debris such as garbage, branches, or leaves, preventing them from flowing out of the collection chamber. At the same time, the filter plate can surround the collection chamber, further preventing debris such as garbage, branches, or leaves from flowing out of the collection chamber.

[0030] 3. The circulating tailwater cooler of the present invention has a guide plate fixedly connected to the base. When impurities carried in the water flow approach the bottom of the conveyor belt, the guide plate will block the impurities. Then, under the guidance of the guide plate, the impurities are guided into the flow channel. Since the surface of the flow channel is designed to be smooth, when the water flow carries impurities through the flow channel, the amount of impurities accumulated in the flow channel can be reduced, thereby preventing the impurities carried by the water flow from accumulating in front of the cooler body, so that the accumulated impurities will slowly flow into the cooler body. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a perspective view of the present invention;

[0033] Figure 2 This is the present invention. Figure 1 Enlarged view of a portion of point A in the middle;

[0034] Figure 3 This is a perspective view of the invention from another angle;

[0035] Figure 4 This is a schematic diagram of the overall structure of the present invention;

[0036] Figure 5 This is the present invention. Figure 4 Enlarged view of a section at point B in the middle;

[0037] Figure 6 This is the present invention. Figure 4 Enlarged view of a section at point C;

[0038] Figure 7 This is a cross-sectional view of the present invention;

[0039] Figure 8 This is the present invention. Figure 7 Enlarged view of a section at point D;

[0040] In the picture:

[0041] 1. Cooler body; 11. Collection chamber; 2. Side plate; 21. U-shaped plate; 22. First slider; 23. First rotating rod; 24. Second rotating rod; 25. Conveyor belt; 251. Stop block; 26. First gear; 27. Drive rod; 28. Second gear; 29. ​​Rotary blade; 3. Float; 31. Slide rail; 32. Second slider; 33. Elastic rope; 34. Triangular block; 4. Base; 41. Flow channel; 42. Guide plate; 43. Filter cloth layer; 44. Cleaning plate. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0043] like Figures 1 to 8 As shown, this invention provides a circulating tailwater channel cooler;

[0044] Includes a cooler body 1; the cooler body 1 is installed in the tailrace channel and is mainly used to cool the water in the tailrace channel.

[0045] It also includes a protective mechanism; the protective mechanism includes,

[0046] Side plate 2, there are two side plates 2, and they are fixed to both sides of the cooler body 1 by bolts;

[0047] The U-shaped plate 21 is fixedly installed on the top end face of the two side plates 2, on the side close to the cooler body 1.

[0048] First slider 22, each of the herringbone plates 21 is slidably connected to the first slider 22, and the first slider 22 is initially located at the lowest end of the inner cavity of the herringbone plate 21;

[0049] The first rotating rod 23 is provided on one side of the two spiral plates 21; the rotating shafts in the first rotating rod 23 extend into the first sliders 22 on both sides and are rotatably connected to the first sliders 22.

[0050] The second rotating rod 24 is provided on one side opposite to the two side plates 2; the rotating shafts inside the second rotating rod 24 extend into the side plates 2 on both sides and are rotatably connected to the side plates 2.

[0051] The conveyor belt 25 is provided on the first rotating rod 23 and the second rotating rod 24, and the conveyor belt 25 is in an inclined state under the limitation of the first rotating rod 23 and the second rotating rod 24; the conveyor belt 25 is made of filter screen;

[0052] The first gear 26 is provided, and the first slider 22 has a cavity; the first gear 26 is fixedly connected to the outer surface of the rotating shaft extending from the first rotating rod 23 into the first slider 22.

[0053] A drive rod 27 is rotatably connected to the inner wall of the first slider 22 below the first gear 26, and the drive rod 27 extends out of the first slider 22.

[0054] The second gear 28 is fixedly connected to the outer surface of the drive rod 27, and the second gear 28 meshes with the first gear 26.

[0055] Rotating blade 29, the driving rod 27 is fixedly connected to the side away from the spiral plate 21;

[0056] The collection chamber 11 is mounted on the top of the cooler body 1 via a support frame, and filter holes are provided in the inner wall of the collection chamber 11; the highest point of the conveyor belt 25 in its initial state is higher than the collection chamber 11; a filter plate is fixedly connected to the rear of the collection chamber 11.

[0057] On opposite sides of the two rotating blades 29, floats 3 are fixedly connected to the outer surface of the drive rod 27; slide rails 31 are provided in the inner walls of the two side plates 2; a second slider 32 is slidably connected in the slide rails 31; the rotating shaft in the second rotating rod 24 extends into the second slider 32 and is rotatably connected to the second slider 32; the second slider 32 is fixedly connected to the end face of the slide rail 31 away from the cooler body 1 by an elastic rope 33;

[0058] Triangular blocks 34 are fixedly connected to both end faces of the second slider 32;

[0059] The outer surface of the conveyor belt 25 is fixed with evenly arranged baffles 251;

[0060] The cooler body 1 and the side plate 2 are fixedly connected to the bottom end face of the base 4; the base 4 is provided with a flow channel 41, and the flow channel 41 penetrates the upper surface of the base 4; a guide plate 42 is fixedly connected to the upper surface of the base 4.

[0061] The surface of the flow channel 41 is a smooth surface;

[0062] A filter cloth layer 43 is fixedly connected inside the flow channel 41;

[0063] A cleaning plate 44 is rotatably connected between the filter cloth layer 43 and the surface of the flow channel 41.

[0064] Specific implementation process

[0065] First, the workers install the cooler into the tailrace channel, then control the cooler body 1 to operate. During operation, the cooler body 1 cools the flowing water. When the water flows through the protective mechanism, because the conveyor belt 25 is made of a filter screen, the water passing through the conveyor belt 25 can flow through the conveyor belt 25 to one side of the cooler body 1. However, debris such as garbage, branches, or leaves carried by the water flow are blocked on the conveyor belt 25, thus preventing excessive garbage, branches, or leaves from entering the cooler body 1 and causing blockage. At the same time, the flowing water can drive the vane 29 to rotate clockwise, thereby driving the drive rod 27 to rotate clockwise within the first slider 22. Since the second gear 28 is fixedly connected to the outer surface of the drive rod 27 within the first slider 22, when the drive rod 27 rotates clockwise, it can drive the second gear 28 to rotate within the first slider 22. And because the first gear 26 and the second gear 28 mesh with each other, The first gear 26 is driven to rotate. Since the shaft of the first gear 26, which is fixed to the first rotating rod 23, extends to one side of the first slider 22, the first rotating rod 23 can be driven to rotate counterclockwise. During the counterclockwise rotation of the first rotating rod 23, the conveyor belt 25 can be driven to rotate counterclockwise. During the counterclockwise rotation of the conveyor belt 25, the garbage, branches, leaves and other debris blocked by the conveyor belt 25 can be rotated. Subsequently, the garbage, branches, leaves and other debris will fall into the collection bin 11 for storage. The water flowing into the collection bin 11 will flow out through the filter holes in the collection bin 11. At the same time, since the conveyor belt 25 is fixed with evenly arranged baffles 251, during the rotation of the conveyor belt 25, the baffles 251 can block the garbage, branches, leaves and other debris, preventing them from rolling on the conveyor belt 25, thereby transferring the garbage, branches, leaves and other debris into the collection bin 11 for collection. Then, the staff can clean the collection bin 11 regularly.

[0066] Specifically, since a float 3 is fixedly connected to the outer surface of the drive rod 27, when the water level flowing through the cooler body 1 increases, the height of the float 3 will rise accordingly. During this rise, the float 3 will drive the first slider 22 to move upward within the U-shaped plate 21. As the first slider 22 moves upward, it will pull the second slider 32 along the slide rail 31 towards the side closer to the cooler body 1 via the conveyor belt 25. Simultaneously, since the second slider 32 is connected to the slide rail 31 via an elastic rope 33, the elastic rope 33 is gradually stretched during the movement of the second slider 32. This ensures that the conveyor belt 25 remains taut. By setting the float 3 on the drive rod 27, the float 3 can adjust its position at different water levels, thereby adjusting the tilt angle of the conveyor belt 25 and ensuring that the conveyor belt 25 is at its highest position. The point is located above the liquid surface, thus preventing debris such as garbage, branches, or leaves carried by the water flow from flowing over the conveyor belt 25 when the liquid level rises. This would prevent the collection of such debris and increase the risk of clogging the cooler body 1. Since a filter plate is fixedly connected to the rear of the collection chamber 11, the filter plate can block the flowing debris such as garbage, branches, or leaves, preventing them from flowing out of the collection chamber 11. At the same time, the filter plate can surround the collection chamber 11, further preventing debris such as garbage, branches, or leaves from flowing out of the collection chamber 11. Meanwhile, since the rotating shaft on the second rotating rod 24 is rotatably connected to the second slider 32, the rotation of the second rotating rod 24 will not be affected. When the liquid level of the water flow returns to normal, the float 3 returns to its initial position through the drive rod 27, and the second slider 32 returns to its original position under the elastic force of the elastic rope 33.

[0067] Meanwhile, since the two end faces of the second slider 32 are fixedly connected to the triangular blocks 34, the triangular blocks 34 will be pushed to move during the movement of the second slider 32. During the movement of the triangular blocks 34, the impurities accumulated in the slide 31 can be pushed out of the slide 31, thereby preventing the impurities accumulated in the slide 31 from affecting the sliding process of the second slider 32 too much.

[0068] More specifically, since the base 4 is fixedly connected to the guide plate 42, when the impurities carried in the water flow approach the bottom of the conveyor belt 25, the guide plate 42 will block the impurities, and then guide them into the flow channel 41 under the guidance of the guide plate 42. Since the surface of the flow channel 41 is designed to be smooth, when the water flow carries impurities through the flow channel 41, the amount of impurities accumulated in the flow channel 41 can be reduced, thereby preventing the impurities carried by the water flow from accumulating in front of the cooler body 1, so that the accumulated impurities will slowly flow into the cooler body 1.

[0069] Meanwhile, since a filter cloth layer 43 is fixedly connected inside the flow channel 41, when water carrying impurities passes through the flow channel 41, the filter cloth layer 43 can prevent excessive impurities carried in the water from passing through the filter cloth layer 43 and flowing into the cooler body 1. In this process, impurities entering the cooler body 1 can be further reduced, thereby increasing the service life of the cooler itself. At the same time, when the water flows through the flow channel 41, it will drive the evenly arranged cleaning plates 44 to rotate. During the rotation of the cleaning plates 44, the impurities accumulated in the flow channel 41 can be pushed to the rear of the cooler, thereby further reducing the amount of impurities accumulated in the flow channel 41. At the same time, during the rotation of the cleaning plates 44, they can impact the filter cloth layer 43, thereby shaking off the impurities on the filter cloth layer 43 and letting them flow out of the flow channel 41 with the water flow.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating tailwater channel cooler, characterized in that, Includes a cooler body (1); the cooler body (1) is installed in the tailrace channel for cooling the water in the tailrace channel; It also includes a protective mechanism; the protective mechanism includes, Side plates (2), there are two side plates (2), and they are fixed to both sides of the cooler body (1) by bolts; A U-shaped plate (21) is fixedly installed on the top end face of the two side plates (2) near the cooler body (1); The first slider (22) is slidably connected inside the herringbone plate (21), and the first slider (22) is initially located at the lowest end of the inner cavity of the herringbone plate (21); The first rotating rod (23) is provided on one side of the two spiral plates (21); the rotating shafts inside the first rotating rod (23) extend into the first sliders (22) on both sides and are rotatably connected to the first sliders (22); The second rotating rod (24) is provided on one side opposite to the two side plates (2); the rotating shafts inside the second rotating rod (24) extend into the side plates (2) on both sides and are rotatably connected to the side plates (2); The conveyor belt (25) is provided on the first rotating rod (23) and the second rotating rod (24), and the conveyor belt (25) is in an inclined state under the limitation of the first rotating rod (23) and the second rotating rod (24); the conveyor belt (25) is made of filter screen; The first gear (26) is provided in the first slider (22), and the first gear (26) is fixedly connected to the outer surface of the rotating shaft extending from the first rotating rod (23) into the first slider (22). A drive rod (27) is rotatably connected to the inner wall of the first slider (22) below the first gear (26), and the drive rod (27) extends out of the first slider (22); The second gear (28) is fixedly connected to the outer surface of the drive rod (27), and the second gear (28) meshes with the first gear (26); Rotating blade (29), the driving rod (27) is fixedly connected to the side away from the spiral plate (21) with the rotating blade (29); The collection chamber (11) is mounted on the top of the cooler body (1) via a support frame, and filter holes are provided in the inner wall of the collection chamber (11); the highest point of the conveyor belt (25) in its initial state is higher than the collection chamber (11); a filter plate is fixedly connected to the rear of the collection chamber (11); On opposite sides of the two blades (29), floats (3) are fixedly connected to the outer surface of the drive rod (27); slides (31) are provided in the inner walls of the two side plates (2); a second slider (32) is slidably connected in the slide (31); the shaft in the second rotating rod (24) extends into the second slider (32) and is rotatably connected to the second slider (32); the second slider (32) is fixedly connected to the end face of the slide (31) away from the cooler body (1) by an elastic rope (33); Triangular blocks (34) are fixedly connected to both end faces of the second slider (32).

2. A circulating tailwater channel cooler according to claim 1, characterized in that: The outer surface of the conveyor belt (25) is fixed with uniformly arranged baffles (251).

3. A circulating tailwater channel cooler according to claim 1, characterized in that: The cooler body (1) and the side plate (2) are fixedly connected to the bottom end face of the base (4); the base (4) is provided with a flow channel (41) and the flow channel (41) penetrates the upper surface of the base (4); the upper surface of the base (4) is fixedly connected to a guide plate (42).

4. A circulating tailwater channel cooler according to claim 3, characterized in that: The surface of the flow channel (41) is smooth.

5. A circulating tailwater channel cooler according to claim 4, characterized in that: A filter cloth layer (43) is fixedly connected inside the flow channel (41).

6. A circulating tailwater channel cooler according to claim 5, characterized in that: A cleaning plate (44) is rotatably connected between the filter cloth layer (43) and the surface of the flow channel (41).

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