A rotary jet flow type water body disturbance anti-icing device

By using a rotating jet-type water disturbance anti-icing device, which utilizes the rotation and lifting of a self-rotating nozzle and spray pipe, the problem of ice cover formation in winter at pumped storage power stations has been solved, achieving anti-icing effects on the water surface and reducing operating costs.

CN117587741BActive Publication Date: 2026-05-29CHINA WATER NORTHEASTERN INVESTIGATION DESIGN & RES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA WATER NORTHEASTERN INVESTIGATION DESIGN & RES
Filing Date
2023-12-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Pumped storage power stations are prone to freezing in winter, and the formation of ice sheets affects power generation and project safety. Existing technologies are difficult to effectively prevent or mitigate ice sheet formation, leading to increased downtime and operating costs.

Method used

A rotating jet-type water disturbance anti-icing device is designed, including a base, a horizontal rotating mechanism, a vertical motion component, and a swirling jet disturbance device. By rotating and raising/lowering the self-rotating nozzle and spray pipe, the water surface is disturbed by the water flow to prevent ice cover formation.

Benefits of technology

It effectively prevents water surface freezing, reduces downtime, lowers operating costs, is suitable for water surface anti-icing at different water levels, and has a simple and compact structure that is easy to install.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of anti-icing and ice breaking, and particularly relates to a rotary jet flow type water body disturbance anti-icing device, which comprises a base, a horizontal rotating mechanism, a vertical movement assembly and a rotary spraying disturbance device, the base is fixedly installed at the bottom of a water body, the horizontal rotating mechanism is sleeved outside the base, and the vertical movement assembly and the rotary spraying disturbance device are installed on the side of the horizontal rotating mechanism or the upper part of the base. The rotary jet flow type water body disturbance anti-icing device has a reasonable structure design, can adjust the position of a spraying pipe by using a lifting mechanism, is suitable for water surface ice prevention of different water levels, and can realize automatic rotation only by the scouring action of water flow without an additional power device. In combination with the rotating spraying pipe, the disturbance area of the water surface is greatly increased. The overall device has a simple and compact structure, is convenient to install, can effectively prevent the formation of an ice cover on the surface of the water body, eliminates the influence of ice formation on hydraulic structures, improves the pumping and power generation efficiency, and reduces the operation cost.
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Description

Technical Field

[0001] This invention belongs to the field of anti-icing and ice-breaking technology, specifically relating to a rotating jet-type water disturbance anti-icing device. Background Technology

[0002] With the rapid recovery and stable growth of the economy, electricity demand has increased dramatically, leading to increasingly tight power supplies and power rationing in many areas. Strengthening power supply capacity has become an urgent priority. Vigorously developing new clean energy sources is particularly important. Pumped storage hydroelectric power stations pump water to an upper reservoir for storage during periods of low electricity demand and release it to a lower reservoir for power generation during periods of high demand, thus playing a role in peak shaving and valley filling. This method has become indispensable in the power grid, and the demand for it is increasing daily.

[0003] In winter, the upper reservoir of pumped-storage hydroelectric power stations is prone to freezing. Currently, the impact of freezing is often mitigated by scheduling pumping and drainage, but a complete ice cover can still form on the upper reservoir, affecting normal power generation and project safety. The presence of the ice cover encroaches on a portion of the reservoir's overall capacity, affecting the power station's output power and causing power loss. The ice fragments and forces generated during the ice breaking process can damage gates and other facilities. To avoid or mitigate this situation, measures such as artificial ice breaking, limiting pumping and drainage, or even shutting down the system can lead to prolonged shutdowns of the upper reservoir, significantly increasing the power station's operating costs. The most effective way to solve these problems is to fundamentally prevent ice cover formation on the water surface.

[0004] In view of this, the inventors aim to design a disturbance-based anti-icing device that can prevent the formation of ice sheets on water surfaces. This device can be flexibly placed to accommodate different water surface conditions, achieving disturbance across the entire water surface range, and providing a reliable guarantee against water freezing in pumped-storage power stations in frigid regions during winter. Summary of the Invention

[0005] The purpose of this invention is to overcome the aforementioned problems in conventional technologies and to provide a rotating jet-type water disturbance anti-icing device.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:

[0007] The present invention provides a rotating jet type water disturbance anti-icing device, including a base, a horizontal rotating mechanism, a vertical motion component and a swirling jet disturbance device. The base is fixedly installed at the bottom of the water body, the horizontal rotating mechanism is fitted on the outside of the base, and the vertical motion component and the swirling jet disturbance device are installed on the side of the horizontal rotating mechanism or on the upper part of the base.

[0008] Furthermore, in the aforementioned rotating jet-type water disturbance anti-icing device, the horizontal rotation mechanism includes a first motor, a first gear, a second gear, a rotating frame, and a first rotating bearing. The first motor is fixed to the top plate of the base by bolts, and the output end of the first motor is connected to the first gear. The rotating frame is installed on the outside of the base through the first rotating bearing, and a second gear that meshes with the first gear is fixedly installed at the upper end of the rotating frame. The first motor drives the rotating frame to rotate through gear transmission.

[0009] Furthermore, in the above-mentioned rotating jet type water disturbance anti-icing device, a vertical motion fixing frame for installing the vertical motion component is provided on one side of the rotating frame.

[0010] Furthermore, in the above-mentioned rotating jet-type water disturbance anti-icing device, the vertical motion component is divided into two parts: a first lifting mechanism and a second lifting mechanism.

[0011] Furthermore, in the aforementioned rotating jet-type water disturbance anti-icing device, the first lifting mechanism includes a second motor, a first drive shaft, a second drive shaft, a first sprocket, a second sprocket, a second bearing, a third bearing, a chain, a track plate, a chain support plate, rollers, and a first water level gauge. The second motor is fixedly mounted on a vertical motion frame on one side of the rotating frame. The output end of the second motor is connected to the first drive shaft. The first and second drive shafts are arranged vertically and are respectively mounted on the vertical motion frame via the second and third bearings. The first sprocket and the second sprocket are respectively mounted on the outside of the first and second drive shafts via keyway engagement and are connected by a chain. The chain support plate is fixedly mounted on the outside of the chain by bolts and connected to the track plate via rollers. The track plate is fixedly mounted on the side of the vertical motion frame. The first water level gauge is fixedly mounted on the chain support plate by bolts for monitoring the water level.

[0012] Furthermore, in the aforementioned rotating jet-type water disturbance anti-icing device, the second lifting mechanism includes a lift, a lifting rod, a nut frame, and a second water level gauge; the lift is fixedly installed on the upper end of the base by bolts, and the output end of the lift is connected to the lifting rod to control the up and down movement of the lifting rod; the nut frame is fixedly installed on the lifting rod, and the second water level gauge is fixedly installed on the nut frame by bolts to monitor the water level.

[0013] Furthermore, in the aforementioned rotating jet-type water disturbance anti-icing device, the rotating jet disturbance device includes a nozzle, a self-rotating nozzle head, a water pump mounting bracket, a water pump, a water delivery pipe, and a water extraction pipe. The nozzle is fixedly mounted on the vertical motion assembly by bolts. The water pump mounting bracket is welded to the rotating frame or base. The water pump is bolted to the water pump mounting bracket. The water pump's intake port is connected to the water extraction pipe, and the water pump's outlet is connected to the nozzle through the water delivery pipe for supplying water to the nozzle.

[0014] Furthermore, in the aforementioned rotating jet-type water disturbance anti-icing device, the self-rotating nozzle includes an inner nozzle tube and an outer nozzle tube. The inner nozzle tube is hollow, and its lower end is threaded onto the spray pipe. The upper end of the inner nozzle tube is designed with a water groove. The outer nozzle tube is fitted around the outer circumference of the inner nozzle tube, and a flow guide is installed on the inner side of the outer nozzle tube. The flow guide is a spiral design that allows it to rotate under the scouring action of the water flow, thereby changing the spray direction of the self-rotating nozzle and increasing the disturbance area of ​​the self-rotating nozzle.

[0015] The beneficial effects of this invention are:

[0016] The rotating jet-type water disturbance anti-icing device provided by this invention has a reasonable structural design. The position of the nozzle can be adjusted by a lifting mechanism, making it suitable for anti-icing of water surfaces at different water levels. The self-rotating nozzle only needs the flushing action of the water flow to achieve automatic rotation, without the need for an additional power device. Combined with the rotating nozzle, it greatly increases the disturbance area of ​​the water surface. The overall device has a simple and compact structure, is easy to install, and can effectively prevent the formation of ice on the water surface, saving the operating costs of pumped storage power stations.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention.

[0020] Figure 2 This is a schematic diagram of the horizontal rotation mechanism in this invention.

[0021] Figure 3 This is a schematic diagram of the structure of the first lifting mechanism in this invention.

[0022] Figure 4 This is a schematic diagram of the swirl jet disturbance device in this invention.

[0023] Figure 5 This is a schematic diagram of the self-rotating nozzle in this invention.

[0024] Figure 6 This is a schematic diagram of the structure of the nozzle outer tube in this invention.

[0025] Figure 7 This is a schematic diagram of the second embodiment of the device in the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the second lifting mechanism in this invention;

[0027] In the attached diagram, the component numbers are as follows:

[0028] 1-Horizontal rotation mechanism, 101-First motor, 102-First gear, 103-Second gear, 104-Rotating frame, 105-First rotating bearing, 2-First lifting mechanism, 201-Second motor, 202-First drive shaft, 203-Second drive shaft, 204-First sprocket, 205-Second sprocket, 206-Second bearing, 207-Third bearing, 208-Chain, 209-Railway plate, 210-Chain support plate, 211-Roller, 212-First water level gauge, 3-Swirl spray disturbance device, 301-Spray pipe, 302-Self-rotating nozzle, 303-Water pump mounting bracket, 304-Water pump, 305-Water delivery pipe, 306-Water extraction pipe, 4-Base, 5-Second lifting mechanism, 501-Lifting machine, 502-Lifting rod, 503-Nut bracket, 504-Second water level gauge. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-8 As shown, this embodiment provides a rotating jet type water disturbance anti-icing device, including a base 4, a horizontal rotating mechanism 1, a vertical motion component and a swirling jet disturbance device 3. The base 4 is fixedly installed at the bottom of the water body, the horizontal rotating mechanism 1 is fitted on the outside of the base 4, and the vertical motion component and the swirling jet disturbance device 3 are installed on the side of the horizontal rotating mechanism 1 or on the upper part of the base 4.

[0031] In this embodiment, the horizontal rotation mechanism 1 includes a first motor 101, a first gear 102, a second gear 103, a rotating frame 104, and a first rotating bearing 105. The first motor 101 is fixed to the upper top plate of the base 4 by bolts. The output end of the first motor 101 is connected to the first gear 102. The rotating frame 104 is mounted on the outside of the base through the first rotating bearing 105. The upper end of the rotating frame 104 is fixedly mounted with a second gear 103 that meshes with the first gear 102. The first motor 101 drives the rotating frame 104 to rotate through gear transmission.

[0032] In this embodiment, a vertical motion fixing bracket for mounting vertical motion components is provided on one side of the rotating frame 104.

[0033] In this embodiment, the vertical motion assembly is divided into two parts: a first lifting mechanism 2 and a second lifting mechanism 5. The first lifting mechanism includes a second motor 201, a first drive shaft 202, a second drive shaft 203, a first sprocket 204, a second sprocket 205, a second bearing 206, a third bearing 207, a chain 208, a track plate 209, a chain support plate 210, a roller 211, and a first water level gauge 212. The second motor 201 is fixedly mounted on a vertical motion fixing frame on one side of the rotating frame 104. The output end of the second motor 201 is connected to the first drive shaft 202. The first drive shaft 202 and the second drive shaft 203 are arranged vertically and respectively... The first sprocket 204 and the second sprocket 205 are mounted on the vertical motion frame via the second bearing 206 and the third bearing 207, respectively, and are mounted on the outside of the first drive shaft 202 and the second drive shaft 203 via keyway engagement. The two are connected by the chain 208. The chain support plate 210 is fixedly mounted on the outside of the chain 208 by bolts and is connected to the track plate 209 via rollers 211. The track plate 209 is fixedly mounted on the side of the vertical motion frame. The first water level gauge 212 is fixed on the chain support plate 210 by bolts for monitoring the water level.

[0034] The second lifting mechanism includes a lifting platform 501, a lifting rod 502, a nut frame 503, and a second water level gauge 504. The lifting platform 501 is fixedly installed on the upper end of the base 4 by bolts. The output end of the lifting platform 501 is connected to the lifting rod 502 to control the up and down movement of the lifting rod 502. The nut frame 503 is fixedly installed on the lifting rod 502, and the second water level gauge 504 is fixedly installed on the nut frame 503 by bolts to monitor the water level.

[0035] In this embodiment, the rotary spray disturbance device 3 includes a spray pipe 301, a self-rotating nozzle 302, a water pump mounting bracket 303, a water pump 304, a water supply pipe 305, and a water extraction pipe 306. The spray pipe 301 is fixedly mounted on the vertical motion component by bolts. The water pump mounting bracket 303 is welded to the rotating frame 104 or the base 4. The water pump 304 is bolted to the water pump mounting bracket 303. The water inlet of the water pump 304 is connected to the water extraction pipe 306. The water outlet of the water pump 304 is connected to the spray pipe 301 through the water supply pipe 305 for supplying water to the spray pipe 301.

[0036] In this embodiment, the self-rotating nozzle 302 includes an inner nozzle tube 3021 and an outer nozzle tube 3022. The inner nozzle tube 3021 has a hollow design, and its lower end is threaded onto the nozzle pipe 301. The upper end of the inner nozzle tube 3021 is designed with a water groove. The outer nozzle tube 3022 is fitted around the outer periphery of the inner nozzle tube 3021. A flow guide 3023 is installed on the inner side of the outer nozzle tube 3022. The flow guide 3023 has a spiral design that can rotate under the scouring action of the water flow, thereby changing the spray direction of the self-rotating nozzle 302 and increasing the disturbance area of ​​the self-rotating nozzle 302.

[0037] The specific application of this embodiment is as follows: Before use, the device is fixed at the bottom of the water body. Based on the detection results of the first water level gauge 212 and the second water level gauge 504, the second motor 201 is controlled to drive the first sprocket 204 to rotate through the first transmission shaft 202, which in turn drives the chain 208 to rotate. During the rotation of the chain 208, the chain support plate 210 moves up and down, thereby realizing the raising and lowering of the nozzle 301. After the nozzle 301 is raised and lowered to near the water surface, the water pump 304 is started to pump water into the nozzle 301. The water flows through the central channel of the inner tube of the self-rotating nozzle 302 and the upper water tank into the space between the inner tube 3021 and the outer tube 3022 of the nozzle. The spiral guide 3023 inside the outer tube 3022 of the nozzle rotates under the scouring action of the water flow, thereby changing the spray direction of the self-rotating nozzle 302 and increasing the disturbance area of ​​the self-rotating nozzle 302. Then, the first motor 101 drives the rotating frame 104 to rotate via gear transmission, which in turn drives the nozzle 301 to rotate, further increasing the turbulence area of ​​the water surface. The water surface moves continuously under the disturbance of the nozzle, preventing the formation of ice.

[0038] Optionally, the nozzle 301 can be raised or lowered to near the water surface using the elevator 501, and the water flow can be delivered into the nozzle 301 by the water pump 304, and then sprayed out through the self-rotating nozzle 302, thereby increasing the disturbance of the water body.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rotating jet-type water disturbance anti-icing device, characterized in that: It includes a base, a horizontal rotation mechanism, a vertical motion component, and a swirl jet disturbance device. The base is fixedly installed at the bottom of the water body, the horizontal rotation mechanism is fitted on the outside of the base, and the vertical motion component and the swirl jet disturbance device are installed on the side of the horizontal rotation mechanism or on the top of the base. The horizontal rotation mechanism includes a first motor, a first gear, a second gear, a rotating frame, and a first rotary bearing. The first motor is fixed to the top plate of the base with bolts. The output end of the first motor is connected to the first gear. The rotating frame is mounted on the outside of the base through the first rotary bearing. A second gear that meshes with the first gear is fixedly installed on the upper end of the rotating frame. The first motor drives the rotating frame to rotate through gear transmission. A vertical motion fixing frame for mounting vertical motion components is provided on one side of the rotating frame. The vertical motion component is a first lifting mechanism, specifically including a second motor, a first drive shaft, a second drive shaft, a first sprocket, a second sprocket, a second bearing, a third bearing, a chain, a track plate, a chain support plate, rollers, and a first water level gauge. The second motor is fixedly mounted on a vertical motion frame on one side of the rotating frame. The output end of the second motor is connected to the first drive shaft. The first and second drive shafts are arranged vertically and are respectively mounted on the vertical motion frame via the second and third bearings. The first and second sprockets are respectively mounted on the outside of the first and second drive shafts via keyways and are connected by a chain. The chain support plate is fixedly mounted on the outside of the chain with bolts and connected to the track plate via rollers. The track plate is fixedly mounted on the side of the vertical motion frame. The first water level gauge is fixedly mounted on the chain support plate with bolts for monitoring the water level. The rotary spray disturbance device includes a spray pipe, a self-rotating nozzle, a water pump mounting bracket, a water pump, a water delivery pipe, and a water extraction pipe. The spray pipe is fixedly mounted on the vertical motion assembly by bolts. The water pump mounting bracket is welded to the rotating frame or base. The water pump is bolted to the water pump mounting bracket. The water pump's inlet is connected to the water extraction pipe. The water pump's outlet is connected to the spray pipe through the water delivery pipe for supplying water to the spray pipe. The self-rotating nozzle includes an inner nozzle tube and an outer nozzle tube. The inner nozzle tube is hollow and its lower end is threaded onto the nozzle pipe. The upper end of the inner nozzle tube has a water groove. The outer nozzle tube is fitted around the outer circumference of the inner nozzle tube. A flow guide is installed on the inner side of the outer nozzle tube. The flow guide is a spiral design that allows it to rotate under the scouring action of the water flow, thereby changing the spray direction of the self-rotating nozzle and increasing the disturbance area of ​​the self-rotating nozzle.