Water turbine for circulating water cooling tower

Abstract

The utility model relates to the technical field of water turbines, and discloses a water turbine for a circulating water cooling tower, which comprises a casing, a rotating rod is connected to the upper side wall of the casing, a water wheel is connected to the outer side of the rotating rod, a generator set is mounted on the upper side of the casing, the rotating rod is connected with the input end of the generator set, and the water wheel comprises a connecting pipe. A connecting pipe is arranged on the outer wall of the machine shell, a wheel blade is arranged on the outer side of the connecting pipe, a concave position is arranged on the upper side of the wheel blade, a convex position is arranged on the lower side of the wheel blade, and a water outlet pipe is connected to the lower side of the machine shell. The cooling water flows in the machine shell in a spiral shape, and the cooling water is intercepted through the limiting plate in the flowing process, so that the cooling water impacts the water wheel under the limiting of the limiting plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of water turbines, in particular to a water turbine for a circulating water cooling tower. Background Art

[0002] After searching, the Chinese patent with the authorization patent number 201320641950.3 discloses a water-driven cooling tower direct-drive radial flow turbine, including a volute, a seat ring with guide vanes arranged inside the volute, a runner and a straight tapered tailwater pipe, the volute water outlet and the guide vane water inlet, the guide vane water outlet and the runner water inlet, the runner water outlet and the tailwater pipe 8 water inlet are connected in sequence, the lower end of the shaft is downwardly connected to the bearing seat, the runner and the drain cone in sequence, and the upper end of the shaft is connected to the cooling fan. The turbine is a low-speed turbine with a specific speed of less than 60m.kW, but when the guide vane enters the runner from the water inlet, the cooling water will affect the expired dynamic potential energy when it does not contact the runner at the water inlet, affecting the subsequent rotation of the runner, and the chassis and the runner are not matched, the runner is subjected to less force, which greatly wastes the dynamic potential energy of the circulating water, thereby affecting energy recovery. For this reason, we propose a circulating water cooling tower turbine. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a water turbine for a circulating water cooling tower, which effectively solves the above problem.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a water turbine for a circulating water cooling tower, comprising a casing, an upper side wall of the casing is connected to a rotating rod, the outer side of the rotating rod is connected to a water wheel, a generator set is installed on the upper side of the casing, and the rotating rod is connected to the input end of the generator set.

[0005] Preferably, the water wheel comprises a connecting pipe, a wheel blade is arranged on the outer side of the connecting pipe, a concave portion is arranged on the upper side of the wheel blade, and a convex portion is arranged on the lower side of the wheel blade.

[0006] Preferably, a water outlet pipe is connected to the lower side of the casing, and the water outlet pipe is bent, and the bending angle of the water outlet pipe is 65-85°.

[0007] Preferably, the upper and lower side walls of the casing are connected to limit arc rings, the opposite sides of the limit arc rings on the upper and lower sides are connected to limit plates, and the opposite sides of the limit arc rings on the upper and lower sides are arranged in an arc shape.

[0008] Preferably, two groups of fan blades are connected to the upper side of the rotating rod, and the fan blades are arranged in an arc shape.

[0009] Preferably, the lower side of the water wheel is arranged in an inverted cone shape.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The device guides the cooling water, so that after the cooling water enters the casing, the outer wall of the casing and the limit arc ring guide the cooling water, so that the cooling water flows in a spiral shape in the casing, and the cooling water is intercepted by the limit plate during the flow, so that the cooling water impacts the water wheel under the limit of the limit plate;

[0012] This device improves the performance of the impeller and makes the impeller and the casing more compatible. The cooling water impacts the concave part in advance under the limit of the limit plate and the casing. The concave part drives the blades to rotate after being impacted by the cooling water. The cooling water collides with the blades and then descends and is discharged through the outlet pipe. During its descent, the gravitational potential energy of the cooling water presses down the convex part of the blades, causing the blades to rotate and then driving the water wheel to rotate as a whole, thereby increasing the rotation speed of the water wheel, increasing the speed of the water wheel rotation, and improving the use of cooling water efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached picture:

[0015] Figure 1 This is a schematic diagram of the structure of a water turbine used in a circulating water cooling tower of the utility model;

[0016] Figure 2 This is a schematic diagram of the water wheel structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the limiting plate of the utility model.

[0018] In the figure: 100, casing; 110, rotating rod; 120, fan blade; 130, limiting arc ring; 131, limiting plate; 200, water wheel; 210, connecting pipe; 220, wheel blade; 230, concave part; 240, convex part; 300, generator set. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3A water turbine for a circulating water cooling tower includes a casing 100, an upper side wall of the casing 100 is rotatably connected with a rotating rod 110, an outer side of the rotating rod 110 is fixedly connected with a water wheel 200, a generator set is fixedly installed on the upper side of the casing 100, the rotating rod 110 is connected to the input end of the generator set, the upper and lower side walls of the casing 100 are connected with a limiting arc ring 130, the opposite sides of the upper and lower limiting arc rings 130 are fixedly connected with limiting plates 131, the opposite sides of the upper and lower limiting arc rings 130 are arranged in an arc shape, and cooling water enters the casing 100. 00, it impacts the water wheel 200 under the guidance of the casing 100. After the cooling water enters the casing 100, the outer wall of the casing 100 and the limiting arc ring 130 guide the cooling water, so that the cooling water flows in a spiral shape in the casing 100, and the cooling water is intercepted by the limiting plate 131 during the flow, so that the cooling water impacts the water wheel 200 under the limitation of the limiting plate 131. Two sets of fan blades 120 are fixedly connected to the upper side of the rotating rod 110, and the fan blades 120 assist in driving the rotating rod 110 to rotate.

[0021] The water wheel 200 includes a connecting pipe 210, and a blade 220 is fixedly connected to the outer side of the connecting pipe 210. A concave portion 230 is provided on the upper side of the blade 220, and a convex portion 240 is provided on the lower side of the blade 220. The blade 220 rotates driven by cooling water. The cooling water impacts the concave portion 230 in advance under the limitation of the limiting plate 131. The concave portion 230 drives the blade 220 to rotate after being impacted by the cooling water. The cooling water collides with the blade 220 and then descends and is discharged through the outlet pipe 300. During its descent, the gravitational potential energy of the cooling water presses down the convex portion 240 of the blade 220, so that the blade 220 rotates and then drives the water wheel 200 to rotate as a whole, thereby increasing the rotation speed of the water wheel 200, increasing the rotation speed of the water wheel 200, and improving the use of cooling water efficiency.

[0022] A water outlet pipe 300 is fixedly connected to the lower side of the casing 100. The water outlet pipe 300 is bent, and the bending angle of the water outlet pipe 300 is 65-85°. By setting the water outlet pipe 300 to be inclined, the cooling water can be discharged more smoothly. The fan blades 120 are arranged in an arc shape, and the lower side of the water wheel 200 is arranged in an inverted cone shape, so that the cooling water can be discharged more smoothly.

Claims

1. A water turbine for a circulating water cooling tower, characterized in that: The invention comprises a casing (100), wherein the upper side wall of the casing (100) is connected to a rotating rod (110), the outer side of the rotating rod (110) is connected to a water wheel (200), a generator set is installed on the upper side of the casing (100), and the rotating rod (110) is connected to the input end of the generator set; the upper and lower side walls of the casing (100) are both connected to a limit arc ring (130), the opposite sides of the limit arc ring (130) on the upper and lower sides are both connected to a limit plate (131), and the opposite sides of the limit arc ring (130) on the upper and lower sides are both arranged in an arc shape.

2. A water turbine for a circulating water cooling tower according to claim 1, characterized in that: The water wheel (200) comprises a connecting pipe (210), a blade (220) is arranged on the outside of the connecting pipe (210), a concave portion (230) is arranged on the upper side of the blade (220), and a convex portion (240) is arranged on the lower side of the blade (220).

3. The water turbine for a circulating water cooling tower according to claim 1, characterized in that: The lower side of the housing (100) is connected to a water outlet pipe (300), and the water outlet pipe (300) is arranged in a curved manner, with a bending angle of 65-85°.

4. The water turbine for a circulating water cooling tower according to claim 1, characterized in that: Two groups of fan blades (120) are connected to the upper side of the rotating rod (110), and the fan blades (120) are arranged in an arc shape.

5. The water turbine for a circulating water cooling tower according to claim 1, characterized in that: The lower side of the water wheel (200) is arranged in an inverted cone shape.

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