Anti-icing device for dam gate

By using air-guiding and heating components on the dam gates, air bubbles are used to disrupt the calm water layer and hot water melts ice crystals, solving the problem of the impact of traditional anti-icing agents on fish and achieving an environmentally friendly and efficient anti-icing effect.

CN224395502UActive Publication Date: 2026-06-23CHANGCHUN HUAPU DATONG ANTI ICING ENG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN HUAPU DATONG ANTI ICING ENG TECH CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional anti-icing agents such as ethylene glycol used for de-icing dam gates may affect fish and are not in line with environmental protection principles.

Method used

An air-guiding component is used to conduct gas to form bubbles in the river, disrupting the calm layer on the water surface. Combined with a heating component, the surface temperature of the gate is increased, delaying freezing. A filter cover prevents impurities from entering the air pipe, reducing the impact on fish.

Benefits of technology

It effectively slows down the freezing rate of the gate, reduces the impact on fish, meets environmental protection requirements, and does not affect the normal opening and closing function of the gate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of dam gate ice prevention device, the ice prevention device includes: air guide component, the air guide component appears bubble in river by conduction gas, bubble rises and destroys water surface calm layer, delays freezing;Temperature rising component, the temperature rising component is used to promote the surface temperature of gate, to melt the ice crystal on the gate surface, the utility model relates to ice prevention device technical field, gas generated by gas generating component is conducted to gas collector, gas is shunted into branch bronchus in gas collector, gas is guided from the water surface of gate along branch bronchus, bubble is formed under water when gas is discharged, bubble rises and destroys water surface calm layer, and then delays the freezing speed of gate and water contact surface, compared with traditional deicing agent deicing, reduce the influence to fish, more in line with environmental protection concept.
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Description

Technical Field

[0001] This utility model relates to the field of anti-icing devices, and in particular to an anti-icing device for dam gates. Background Technology

[0002] Dam gates are movable water-blocking structures installed on dams, sluices, or spillway water passages. They are used to regulate water flow, water level, or intercept debris by controlling their opening and closing status.

[0003] When ice forms on the surface of the dam gate plate in contact with the water, it may cause the gate to deform, malfunction in opening and closing, or fail to seal. Therefore, anti-icing devices are needed to prevent the formation of ice on the gate surface. Traditional anti-icing agents (such as ethylene glycol) may affect fish and are not in line with environmental protection principles. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-icing device for dam gates, which solves the problem that traditional anti-icing agents (such as ethylene glycol) may affect fish and are not in line with environmental protection principles.

[0005] This utility model provides an anti-icing device for dam gates, the anti-icing device comprising:

[0006] A gas guiding component, which causes bubbles to appear in the river by conducting gas. The rising bubbles disrupt the calm layer on the water surface and delay freezing.

[0007] A heating component is used to increase the surface temperature of the gate in order to melt the ice crystals on the surface of the gate;

[0008] The air guiding assembly includes:

[0009] A gas collecting pipe, which is located on the backwater side of the gate;

[0010] Multiple bronchi, one end of each of the multiple bronchi is connected to the gas collecting pipe, and the other end of each of the multiple bronchi extends to the water-facing side of the gate. Each of the multiple bronchi is equipped with a filter cover at its outlet.

[0011] A gas generating assembly for transmitting external gas into the gas collecting pipe.

[0012] Preferably, the gas generating assembly includes:

[0013] A blower, wherein a mounting shell is disposed on the outer periphery of the blower, and the mounting shell is connected to the backwater surface of the gate;

[0014] An air guide hose, one end of which is connected to the air outlet of the blower, and the other end of which is connected to the air inlet of the air collecting pipe.

[0015] Preferably, the heating component includes:

[0016] A circulation pipe is inserted into the inner cavity of the gate. The circulation pipe is used to conduct external warm water, and a filter element is provided at the outlet end of the circulation pipe.

[0017] A cap is located at the top of the circulation pipe and is used to seal the inner cavity of the gate.

[0018] Preferably, the filter element includes:

[0019] A filter cartridge, one end of which is connected to the outlet end of the circulation pipe, and the other end of which is equipped with a flange;

[0020] A filter screen, which is located inside the filter cartridge.

[0021] Preferably, the circulation pipe is composed of a 180-degree U-shaped bend that winds back and forth on a plane.

[0022] Preferably, a baffle is provided on the side of the mounting housing away from the gate, and a sliding plate is machined at the bottom end of the baffle, the sliding plate being slidably connected to the mounting housing;

[0023] The top of the baffle is connected to the mounting shell by bolts;

[0024] The baffle and the mounting shell form a cavity structure.

[0025] Preferably, each of the plurality of bronchial pipes is equipped with a valve on the water-facing side of the gate.

[0026] Preferably, the top of the filter cover is hemispherical, and the surface is uniformly distributed with through holes.

[0027] This utility model provides an anti-icing device for dam gates:

[0028] By using a combination of gas collecting pipes, branch pipes, filter covers, valves, and gas generating components, the gas generated by the gas generating components is conducted to the gas collecting pipe. The gas is then diverted in the gas collecting pipe and enters the branch pipe. The gas is then discharged from the water-facing side of the gate along the branch pipe. When the gas is discharged, it forms bubbles underwater. The rising bubbles disrupt the calm layer on the water surface, thereby slowing down the freezing rate of the gate and the water contact surface. Compared with traditional antifreeze de-icing, this method reduces the impact on fish and is more in line with environmental protection principles. The filter cover installed at the gas outlet of the branch pipe prevents impurities in the water from entering the branch pipe, thus preventing blockage. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the gas collecting pipe, branch pipe, filter cover, and valve in this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the gate, circulation pipe, and cover in this utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the mounting shell, baffle, slide plate, and bolts in this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the circulation pipe, the cap, and the filter element in this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Gate, 2-Gas guiding assembly, 21-Gas collecting pipe, 22-Branch pipe, 221-Filter cover, 222-Valve, 23-Gas generating assembly, 231-Blower, 232-Gas guiding hose, 233-Mounting housing, 233a-Baffle, 233b-Slide plate, 233c-Bolt, 3-Heating assembly, 31-Circulation pipe, 32-Cap, 33-Filter element, 331-Filter cartridge, 332-Flange, 333-Filter screen. Detailed Implementation

[0037] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this embodiment, as Figure 1 and Figure 2 As shown, an anti-icing device for a dam gate includes: an air guiding component 2, which conducts gas to create bubbles in the river, which rise and disrupt the calm layer on the water surface, thus delaying freezing; and a heating component 3, which raises the surface temperature of the gate 1 to melt the ice crystals on the surface of the gate 1.

[0041] The air guiding assembly 2 includes: an air collecting pipe 21, which is located on the backwater side of the gate 1; multiple branch pipes 22, one end of which is connected to the air collecting pipe 21, and the other end of which extends to the water-facing side of the gate 1, and the outlet end of which is equipped with a filter cover 221; and a gas generating assembly 23, which is used to conduct external gas into the air collecting pipe 21.

[0042] Thus, the gas generated by the gas generating component 23 is conducted to the gas collecting pipe 21, and the gas is diverted in the gas collecting pipe 21 into the branch pipe 22. The gas is discharged from the water-facing side of the gate 1 along the branch pipe 22. When the gas is discharged, bubbles are formed underwater. The bubbles rise and disrupt the calm layer on the water surface, thereby slowing down the freezing speed of the gate 1 in contact with the water. The filter cover 221 set at the gas outlet of the branch pipe 22 prevents impurities in the water from entering the branch pipe 22.

[0043] Specifically, the air inlet of the air collecting pipe 21 is located in the middle and is T-shaped. Four branch pipes 22 are designed to be evenly distributed along the air collecting pipe 21. The air outlet of the branch pipes 22 faces the water surface. The branch pipes 22 are fixedly connected to the gate 1. The filter cover 221 is made of stainless steel to prevent impurities from entering the branch pipes 22. The filter cover 221 and the branch pipes 22 are designed to be detachable to facilitate cleaning of the filter cover 221.

[0044] In some embodiments, such as Figure 4 As shown, the gas generating assembly 23 includes: a blower 231, with a mounting shell 233 disposed on the outer periphery of the blower 231, the mounting shell 233 being connected to the backwater surface of the gate 1; and a gas guide hose 232, one end of which is connected to the air outlet of the blower 231, and the other end of which is connected to the air inlet of the gas collecting pipe 21.

[0045] Specifically, the blower 231 generates airflow when it operates. The airflow enters the air guide hose 232 through the air outlet of the blower 231. The mounting housing 233 is used to install the blower 231. The air guide hose 232 is made of rubber material. The air outlet of the air guide hose 232 is connected to the air collection pipe 21 by a flange.

[0046] It should be noted that the gas collection pipe 21 can also be directly connected to an external compressed air pipe, thereby using compressed air to replace the gas generating component 23.

[0047] In some embodiments, such as Figure 3 As shown, the heating component 3 includes: a circulation pipe 31, which is inserted into the inner cavity of the gate 1 and is used to conduct external warm water. A filter element 33 is provided at the outlet end of the circulation pipe 31; and a cover 32, which is located at the top of the circulation pipe 31 and is used to seal the inner cavity of the gate 1.

[0048] Specifically, a cavity adapted to the circulation pipe 31 is machined in the gate 1. The cover 32 is used to seal the cavity of the gate 1. The cover 32 and the gate 1 can be welded together. The inlet and outlet of the circulation pipe 31 are connected to an external waste heat recovery device through pipes. The circulation pipe 31 is used to conduct hot water to raise the surface temperature of the gate 1.

[0049] In some embodiments, such as Figure 5 As shown, the filter element 33 includes: a filter cartridge 331, one end of which is connected to the outlet end of the circulation pipe 31, and a flange 332 is provided at the other end of the filter cartridge 331; and a filter screen 333, which is located in the inner cavity of the filter cartridge 331.

[0050] Specifically, the filter cartridge 331 and the circulation pipe 31 are connected in a detachable manner (e.g., internal or external threaded connection, or snap-fit). The flange 332 is designed to connect to external pipes for circulating hot water. The filter screen 333 is used to block scale and other impurities in the hot water.

[0051] In some embodiments, such as Figure 5 As shown, the circulation pipe 31 is composed of a 180-degree U-shaped bend that winds back and forth on the plane.

[0052] Specifically, the design of the reciprocating coil of the circulation pipe 31 is used to increase the contact area between it and the gate 1 to facilitate heat exchange. In addition, the circulation pipe 31 can also be designed in a disc shape.

[0053] In some embodiments, such as Figure 4 As shown, a baffle 233a is provided on the side of the mounting shell 233 away from the gate 1. A sliding plate 233b is machined at the bottom end of the baffle 233a, and the sliding plate 233b is slidably connected to the mounting shell 233. The top end of the baffle 233a is connected to the mounting shell 233 by bolts 233c. The baffle 233a and the mounting shell 233 form a cavity structure.

[0054] Specifically, the baffle 233a is right-angled and can close the front of the mounting shell 233 and the side away from the air guide hose 232. The baffle 233a and the mounting shell 233 form a cavity to house the blower 231 and the air guide hose 232. Multiple threaded holes that match the bolts 233c are machined on the top surface of the baffle 233a. The slide plate 233b is designed to constrain the travel direction of the baffle 233a.

[0055] In some embodiments, such as Figure 2 As shown, multiple bronchial pipes 22 are equipped with valves 222 on one side of the gate 1 facing the water.

[0056] Specifically, valve 222 is designed to control the opening and closing of bronchus 22 to prevent water from entering the gas collecting pipe 21 along bronchus 22 when bubbles are not needed. In addition, valve 222 can also be designed at the air inlet end of gas collecting pipe 21.

[0057] In some embodiments, such as Figure 2 As shown, the top of the filter cover 221 is hemispherical, and the surface is evenly distributed with through holes.

[0058] Specifically, the top of the filter cover 221 is designed in a hemispherical shape to prevent impurities from adhering.

[0059] The working principle of this application is illustrated below with a preferred embodiment:

[0060] When the lower gate 1 closes or partially closes the water passage, the blower 231 is started. The air force generated by the blower 231 is transmitted to the gas collection pipe 21 through the air guide hose 232. The gas is diverted in the gas collection pipe 21 and enters the branch pipe 22. The gas is discharged from the water-facing side of the gate 1 along the branch pipe 22. When the gas is discharged, bubbles are formed underwater. The bubbles rise and disrupt the calm layer on the water surface, thereby slowing down the freezing speed of the surface of the gate 1 in contact with the water.

[0061] When it is not necessary to use gas to disrupt the calm layer of the water surface, the slide plate 233b moves in the mounting shell 233 to drive the baffle 233a to close the mounting shell 233. The position of the baffle 233a in the mounting shell 233 is fixed by bolts 233c, so that the baffle 233a and the mounting shell 233 form a cavity structure. Then the air guide hose 232 is separated from the air collection pipe 21, and the air guide hose 232 and the blower 231 are collected in the cavity of the baffle 233a and the mounting shell 233 for storage.

[0062] When bubbles are generated, the inlet end of the circulation pipe 31 is connected to the external waste heat recovery pipe. The external hot water enters the circulation pipe 31 through the waste heat recovery pipe. As the hot water flows along the circulation pipe 31, it raises the temperature of the gate 1 surface, thereby melting the ice crystals on the gate 1 surface. After heat exchange, the hot water enters the filter cartridge 331. Under the action of the filter screen 333, impurities in the hot water are blocked. The filtered hot water flows back to the external waste heat recovery device through the external pipe for recycling.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An anti-icing device for dam gates, characterized in that, The anti-icing device includes: The gas guiding component (2) causes bubbles to appear in the river by conducting gas. The bubbles rise and disrupt the calm layer on the water surface, thus delaying freezing. Heating component (3), the heating component (3) is used to increase the surface temperature of the gate (1) to melt the ice crystals on the surface of the gate (1); The air guiding assembly (2) includes: Gas collecting pipe (21), the gas collecting pipe (21) is located on the back side of the gate (1); Multiple bronchial tubes (22) are provided, one end of which is connected to the gas collecting tube (21), and the other end of which extends to the water-facing side of the gate (1). Each of the multiple bronchial tubes (22) is equipped with a filter cover (221) at its outlet. Gas generating assembly (23) is used to conduct external gas into the gas collecting pipe (21).

2. The anti-icing device according to claim 1, characterized in that, The gas generating assembly (23) includes: A blower (231) is provided with a mounting shell (233) on its outer periphery, and the mounting shell (233) is connected to the backwater surface of the gate (1); The air guide hose (232) is connected at one end to the air outlet of the blower (231) and at the other end to the air inlet of the air collection pipe (21).

3. The anti-icing device according to claim 1, characterized in that, The heating component (3) includes: A circulation pipe (31) is inserted into the inner cavity of the gate (1). The circulation pipe (31) is used to conduct external warm water. A filter element (33) is provided at the outlet end of the circulation pipe (31). A cover (32) is located at the top of the circulation pipe (31) and is used to seal the inner cavity of the gate (1).

4. The anti-icing device according to claim 3, characterized in that, The filter element (33) includes: A filter cartridge (331) is provided with a flange (332) at one end and the outlet end of the circulation pipe (31) at the other end. A filter screen (333) is located in the inner cavity of the filter cartridge (331).

5. The anti-icing device according to claim 3, characterized in that, The circulation pipe (31) is composed of a 180-degree U-shaped bend that winds back and forth on a plane.

6. The anti-icing device according to claim 2, characterized in that, A baffle (233a) is provided on the side of the mounting shell (233) away from the gate (1), and a sliding plate (233b) is machined at the bottom end of the baffle (233a). The sliding plate (233b) is slidably connected to the mounting shell (233). The top end of the baffle (233a) is connected to the mounting shell (233) by bolts (233c); The baffle (233a) and the mounting shell (233) form a cavity structure.

7. The anti-icing device according to claim 1, characterized in that, Each of the multiple branch pipes (22) located on the water-facing side of the gate (1) is equipped with a valve (222).

8. The anti-icing device according to claim 1, characterized in that, The top of the filter cover (221) is hemispherical, and the surface is evenly distributed with through holes.