Anti-freezing device for water conservancy and hydropower equipment

Abstract

The utility model discloses a water conservancy and hydropower equipment anti-freezing device, and belongs to the technical field of water conservancy and hydropower equipment anti-freezing. An anti-freezing device for water conservancy and hydropower equipment comprises a dam body, drainage pipes, a heat preservation cover, a transmission mechanism and an access cover, and the multiple drainage pipes are fixedly connected to the dam body in a penetrating mode; the multiple heat preservation covers are fixedly connected to the dam body. The two transmission mechanisms are rotationally connected to the heat preservation cover. By arranging the heat preservation cover and the access cover, the exposed end of the water drainage pipe and the valve can be protected inside, the situation that water cannot be drained and the valve and a pipeline are frozen to crack due to freezing at low temperature is effectively avoided, and the practicability of the device is improved; and meanwhile, the openable access cover can drive the side plate to be opened through the transmission mechanism, so that the valve can be conveniently overhauled.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water conservancy and hydropower equipment anti-freezing, in particular to a water conservancy and hydropower equipment anti-freezing device. BACKGROUND

[0002] The anti-freezing device of water conservancy and hydropower equipment is usually used to prevent the water and electricity equipment from freezing, damaging or affecting the normal operation in cold seasons. The anti-freezing device not only protects the equipment from freezing damage, but also improves the safety and reliability of the hydropower station. The following are several common water conservancy and hydropower equipment anti-freezing measures and devices:

[0003] 1. Electric heating device

[0004] The electric heating device is a common method of anti-freezing, which is suitable for some key equipment in the hydropower station, such as water pumps, valves, pipes, etc. Common electric heating devices include:

[0005] Electric heating tape (heating tape): The electric heating tape is wrapped around the surface of the pipe or equipment, which is heated by electric current to ensure that the temperature of the equipment is maintained within the anti-freezing range. The electric heating tape is usually made of high-temperature resistant materials, which can prevent the water pipes and other equipment from freezing due to cold weather.

[0006] Electric heating pipe: It is suitable for larger equipment or pipes, which generates heat through electric current to uniformly heat the surface of the equipment.

[0007] 2. Circulating heating device

[0008] This device uses circulating water flow for heating to prevent water from freezing. The common method is to introduce warm water into the pipes or equipment that may be frozen through the water pump and heat source circulation system to maintain the temperature of the equipment within a safe range. For example, in some water pipes, the constant water flow and warm water circulation effectively prevent the water from freezing.

[0009] 3. Hot air heating system

[0010] In some water conservancy and hydropower equipment anti-freezing, the hot air heating system is also a common solution. This system blows warm air to increase the temperature of the equipment or environment to avoid freezing. It is suitable for control rooms, machine rooms and other areas, and can also be used for water pumps, valves and other equipment anti-freezing.

[0011] 4. Insulation materials and outer cover

[0012] Installing insulation or insulation cover on the outside of the equipment or pipe is also one of the common anti-freezing measures. Insulation materials (such as polyurethane, foam, rock wool, etc.) can effectively insulate the outside low temperature and reduce the loss of internal heat. By insulation, the risk of equipment freezing is reduced, which is commonly used in pipes, valves, pump stations and other equipment.

[0013] 5. Hot water circulation system

[0014] For some key water conservancy and hydropower equipment, especially the water pipes and valves, a hot water circulation system can be installed. This system circulates heated water through pipes to maintain the temperature of the equipment and prevent freezing. This method is generally applicable to water supply pipe networks, valve wells, and some equipment with water flow.

[0015] The anti-freezing device of water conservancy and hydropower equipment mainly maintains the normal operation of the equipment through heating, insulation, and automatic temperature control to avoid damage caused by low temperature. According to different types of equipment and operating environments, different anti-freezing methods can be used, including electric heating devices, hot air systems, insulation materials, and circulating heating systems. According to specific needs, reasonable combination of these anti-freezing measures can effectively ensure the safe operation of the hydropower station in cold seasons.

[0016] The existing dam has a drain pipe installed on the lower side of the dam body and a valve. When the weather is cold, due to the lack of protective mechanisms, the end exposed outside the dam body will freeze the internal water at low temperatures, making the pipe unable to drain water and easily causing damage to the valve, which has poor practicality.

[0017] In view of this, we propose an anti-freezing device for water conservancy and hydropower equipment. Content of the utility model

[0018] 1. Technical problem to be solved

[0019] The purpose of the present application is to provide an anti-freezing device for water conservancy and hydropower equipment to solve the problem of poor practicality caused by the lack of protective mechanisms, which causes the end exposed outside the dam body to freeze the internal water at low temperatures, making the pipe unable to drain water and easily causing damage to the valve when the weather is cold.

[0020] 2. Technical solution

[0021] An anti-freezing device for water conservancy and hydropower equipment, comprising a dam body, a drain pipe, an insulation cover, a transmission mechanism, and an inspection cover, wherein the dam body is fixedly connected with a plurality of drain pipes;

[0022] A plurality of insulation covers are fixedly connected to the dam body;

[0023] Two transmission mechanisms are rotatably connected to the insulation cover;

[0024] The inspection cover is slidably connected to the insulation cover.

[0025] Preferably, the outer end of the drain pipe is fixedly connected with a valve.

[0026] Preferably, the heat preservation cover and the maintenance cover are both provided with a heat preservation layer, and the heat preservation cover is rotatably connected with a side plate on both sides.

[0027] Preferably, the transmission mechanism comprises a threaded rod rotatably connected with the heat preservation cover, a moving block threadedly connected with the threaded rod, a connecting rod rotatably connected with the moving block, and a side plate rotatably connected with the other end of the connecting rod.

[0028] Preferably, the maintenance cover is fixedly connected with an electric push rod, the other end of the electric push rod is fixedly connected with the heat preservation cover, and the maintenance cover is fixedly connected with a rack on both sides, and the rack is in meshing transmission with the gear.

[0029] 3. Beneficial effects

[0030] Compared with the prior art, the advantages of the present application are that the exposed end of the drain pipe and the valve are protected in the heat preservation cover and the maintenance cover, the freezing of the valve and the pipe caused by the low temperature is effectively avoided, the practicability of the device is improved, and the maintenance cover can be opened to facilitate the maintenance of the valve. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0032] Figure 2 It is a schematic diagram of the partial structure of the present application;

[0033] Figure 3 It is a schematic diagram of the maintenance cover structure of the present application;

[0034] Figure 4 It is a schematic diagram of the heat preservation cover structure of the present application;

[0035] Explanation of reference numerals in the drawings: 1, dam body; 2, drain pipe; 3, heat preservation cover; 4, transmission mechanism; 5, maintenance cover; 201, valve; 301, side plate; 401, threaded rod; 402, moving block; 403, connecting rod; 404, universal joint; 405, gear; 501, electric push rod; 502, rack. DETAILED DESCRIPTION

[0036] Please refer to FIGS. 1-4, the present application provides a technical solution:

[0037] A frost-proof device for water conservancy and hydropower equipment, comprising a dam body 1, a drain pipe 2, a heat preservation cover 3, a transmission mechanism 4, and a maintenance cover 5, a plurality of drain pipes 2 are fixedly and penetratingly connected on the dam body 1;

[0038] A plurality of heat preservation covers 3 are fixedly connected on the dam body 1;

[0039] Two transmission mechanisms 4 are rotatably connected on the heat preservation cover 3;

[0040] The maintenance cover 5 is slidingly fitted on the heat preservation cover 3.

[0041] Specifically, the outer end of the drain pipe 2 is fixedly connected with a valve 201.

[0042] Further, the heat preservation cover 3 and the maintenance cover 5 are both provided with a heat preservation layer, and both sides of the heat preservation cover 3 are rotatably connected with side plates 301.

[0043] Further, the transmission mechanism 4 comprises a threaded rod 401 rotatably connected with the heat preservation cover 3, a moving block 402 threadedly connected on the threaded rod 401, a connecting rod 403 rotatably connected on the moving block 402, the other end of the connecting rod 403 rotatably connected with the side plate 301, a universal joint 404 fixedly connected on the threaded rod 401, and a gear 405 fixedly connected on the other end of the universal joint 404.

[0044] In addition, an electric push rod 501 is fixedly connected on the maintenance cover 5, the other end of the electric push rod 501 is fixedly connected with the heat preservation cover 3, a rack 502 is fixedly connected on both sides of the maintenance cover 5, and the rack 502 is in meshing transmission with the gear 405.

[0045] The implementation principle of the water conservancy and hydropower equipment anti-freezing device is that, in low temperature, the heat preservation layer in the heat preservation cover 3 and the maintenance cover 5 can protect the valve 201 and the outer end of the drain pipe 2, so as to avoid freezing, when the valve 201 needs to be maintained, the electric push rod 501 drives the maintenance cover 5 to move upward and open, at this time, the rack 502 connected with the maintenance cover 5 drives the gear 405 to rotate, the gear 405 drives the threaded rod 401 connected with the universal joint 404 to rotate, the threaded rod 401 drives the moving block 402 to move downward, and the connecting rod 403 drives the side plate 301 to open, so as to facilitate the maintenance.

Claims

1. A kind of water conservancy and hydropower equipment anti-freezing device, including dam body (1), drain pipe (2), heat preservation cover (3), transmission mechanism (4), maintenance cover (5), it is characterized by: A plurality of drainage pipes (2) are fixedly arranged on the dam body (1) in penetrating connection; A plurality of heat preservation covers (3) are fixedly arranged on the dam body (1); Two transmission mechanisms (4) are rotatably arranged on the heat preservation cover (3); An inspection cover (5) is slidingly arranged on the heat preservation cover (3).

2. The anti-freezing device for water conservancy and hydropower equipment according to claim 1, characterized in that: The outer end of the drainage pipe (2) is fixedly connected with a valve (201).

3. The anti-freezing device for water conservancy and hydropower equipment according to claim 1, characterized in that: The heat preservation cover (3) and the inspection cover (5) are both provided with a heat preservation layer, and both sides of the heat preservation cover (3) are rotatably provided with side plates (301).

4. The anti-freezing device for water conservancy and hydropower equipment according to claim 1, characterized in that: The transmission mechanism (4) comprises a threaded rod (401), the threaded rod (401) is rotatably arranged on the heat preservation cover (3), a moving block (402) is threadedly arranged on the threaded rod (401), a connecting rod (403) is rotatably arranged on the moving block (402), the other end of the connecting rod (403) is rotatably arranged on the side plate (301), a universal joint (404) is fixedly arranged on the threaded rod (401), and the other end of the universal joint (404) is fixedly arranged with a gear (405).

5. The anti-freezing device for water conservancy and hydropower equipment according to claim 1, characterized in that: The inspection cover (5) is fixedly provided with an electric push rod (501), the other end of the electric push rod (501) is fixedly arranged on the heat preservation cover (3), the two sides of the inspection cover (5) are fixedly provided with a gear rack (502), and the gear rack (502) is in meshing transmission with the gear (405).

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