Water turbine cooling protection device for hydropower station

Abstract

The utility model discloses a water turbine cooling protection device for a hydropower station, which comprises a water-cooling protection assembly, a water-cooling protection assembly and a water-cooling protection assembly, and the water-cooling protection assembly comprises water-cooling boxes which are symmetrically arranged; the emergency conversion assembly comprises a communicating pipe, a first conversion pipe, a second conversion pipe and a conversion electromagnetic valve; one end of the communicating pipe communicates with the upper portion of the outer surface of the water cooling box, the first conversion pipe communicates with the inner side of the outer surface of the communicating pipe, the second conversion pipe communicates with the outer side of the outer surface of the communicating pipe, and the conversion electromagnetic valve penetrates through the upper portion of the outer surface of the communicating pipe. According to an existing cooling protection device for the water turbine, a water cooling box is attached to the surface of the water turbine, the water turbine is cooled and protected through transfer between cold water and heat, however, when water cooling protection is used, if cold water with a certain temperature is replaced in use, emergency temporary cooling measures are lacked, and the water turbine is not damaged. And the actual use effect is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine cooling protection, in particular to a water turbine cooling protection device for a hydropower station. Background Art

[0002] A water turbine is a power machine that converts water flow energy into rotational mechanical energy. It belongs to the category of turbine machinery among fluid machinery and is a commonly used equipment in hydropower stations. A cooling protection device is a device that provides temperature protection for water turbines.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing cooling protection device for turbines achieves the purpose of cooling the turbine by attaching a water cooling box to the surface of the turbine and utilizing the transfer between cold water and heat. However, when using water cooling protection, if the water is replaced with cold water with a certain temperature during use, the actual use effect is affected due to the lack of emergency temporary cooling measures. Utility Model Content

[0005] The utility model aims to provide a cooling protection device for a water turbine in a hydropower station, so as to solve the problem raised in the above-mentioned background technology that the existing cooling protection device for a water turbine achieves the purpose of cooling and protecting the water turbine by attaching a water cooling box to the surface of the water turbine and utilizing the transfer between cold water and heat. However, when using water cooling and cooling protection, if the water is replaced with cold water with a certain temperature during use, the actual use effect is affected due to the lack of emergency temporary cooling measures.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a cooling protection device for a water turbine in a hydropower station, comprising:

[0008] A water-cooling protection assembly, the water-cooling protection assembly comprising symmetrically arranged water-cooling boxes;

[0009] An emergency conversion assembly, the emergency conversion assembly comprising a connecting pipe, a first conversion pipe, a second conversion pipe, and a conversion solenoid valve;

[0010] One end of the connecting pipe is connected to the upper part of the outer surface of the water cooling box, and the first conversion pipe is connected to the inner side of the outer surface of the connecting pipe, the second conversion pipe is connected to the outer side of the outer surface of the connecting pipe, and the conversion solenoid valve passes through the upper part of the outer surface of the connecting pipe.

[0011] Furthermore, the connecting pipe is configured to be L-shaped, and a thread is arranged on the outer surface of one end of the connecting pipe, and a first connecting flange is fixed to the other end and the outer sides of the first conversion pipe and the second conversion pipe.

[0012] Furthermore, the conversion solenoid valve is a three-way setting, and the first conversion tube is connected to the external cold air pipeline, and the second conversion tube is connected to the external cold water pipeline.

[0013] Furthermore, the water-cooling protection assembly also includes a sealing cover, a control frame, and a sealing ring;

[0014] The sealing cover is threadedly connected to the middle of the front of the water cooling box, and the control frame is equidistantly fixed to the front of the sealing cover, and the sealing ring is filled in the connection gap between the sealing cover and the water cooling box.

[0015] Furthermore, it also includes a pumping and adjusting component, which includes a pumping and adjusting pipe, a pumping and adjusting solenoid valve, and a heat preservation sleeve;

[0016] The pumping pipe is connected to the lower part of the outer surface of the water cooling box, and the pumping solenoid valve runs through the lower part of the outer surface of the pumping pipe. The insulation sleeve is segmentedly sleeved on the front and rear of the outer surface of the pumping pipe.

[0017] Furthermore, the withdrawal tube is configured to be L-shaped, and threads are equidistantly arranged on the surface of one end of the withdrawal tube, and a second connecting flange is fixed to the other end.

[0018] Furthermore, it also includes a mounting assembly, which includes a mounting ring, a locking column, and a locking nut;

[0019] The mounting ring is fixed to the inner side of the outer surface of the water cooling box, and the locking columns are equidistantly penetrated through the middle of the mounting ring, and the locking nuts are threadedly connected to the front and rear ends of the locking columns.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The utility model adds a first conversion tube and a second conversion tube on the outer surface of the connecting tube, which are respectively connected to the external cold air pipeline and the cold water pipeline, and are converted and controlled by a conversion solenoid valve. When the turbine is quickly cooled and protected, when the cold water with a certain temperature in use is replaced, the cold air can be temporarily transported through the first conversion tube in an emergency, ensuring that the turbine is still in a cooling state during the cold water replacement. The uninterrupted cooling treatment helps to achieve the purpose of rapid cooling and improve the use effect.

[0022] Based on the above beneficial effects, an insulation sleeve is added to the process of extracting and replacing the cold water in the system to perform insulation treatment to avoid damage from residual heat and save resources. At the same time, the central cavity of the insulation sleeve is set to store cold water in advance and utilize residual heat for exchange, which saves energy and protects the environment and improves the applicability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is the appearance diagram of the utility model;

[0025] Figure 2 This is a diagram showing the installation position of the water cooling protection assembly of the utility model;

[0026] Figure 3 This is a schematic diagram of the emergency conversion assembly of the utility model;

[0027] Figure 4 It is a schematic diagram of the extraction and adjustment component of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 11. Water cooling box; 12. Sealing cover; 13. Control frame; 14. Sealing ring; 21. Connecting pipe; 22. First conversion pipe; 23. Second conversion pipe; 24. Conversion solenoid valve; 25. First connecting flange; 31. Pumping pipe; 32. Pumping solenoid valve; 33. Insulation sleeve; 34. Second connecting flange; 41. Mounting ring; 42. Locking column; 43. Locking nut. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1-4 As shown, this embodiment is a cooling protection device for a water turbine in a hydropower station, comprising:

[0034] A water cooling protection component, the water cooling protection component comprises a symmetrically arranged water cooling box 11;

[0035] After cold water is input into the water cooling box 11, heat is exchanged by contacting the surface of the turbine to cool the turbine;

[0036] The water cooling protection assembly also includes a sealing cover 12, a control frame 13, and a sealing ring 14;

[0037] The sealing cover 12 is threadedly connected to the middle of the front of the water cooling box 11, and the control frame 13 is equidistantly fixed to the front of the sealing cover 12, and the sealing ring 14 is filled in the connection gap between the sealing cover 12 and the water cooling box 11;

[0038] The sealing cover 12 is used in conjunction with the sealing ring 14 to perform a sealing and anti-seepage treatment on the front of the water cooling box 11. After the sealing cover 12 is opened, the inner wall of the water cooling box 11 is cleaned, and the control frame 13 applies a disassembly force to the sealing cover 12;

[0039] The emergency conversion assembly includes a connecting pipe 21, a first conversion pipe 22, a second conversion pipe 23, and a conversion solenoid valve 24;

[0040] One end of the connecting pipe 21 is connected to the upper part of the outer surface of the water cooling box 11, and the first conversion pipe 22 is connected to the inner side of the outer surface of the connecting pipe 21, the second conversion pipe 23 is connected to the outer side of the outer surface of the connecting pipe 21, and the conversion solenoid valve 24 runs through the upper part of the outer surface of the connecting pipe 21;

[0041] The connecting pipe 21 is connected to the water cooling box 11 to transport cold water or cold air to the inside of the water cooling box 21. The first conversion pipe 22 and the second conversion pipe 23 supply cold water and cold air to the inside of the water cooling box 21. The conversion solenoid valve 24 switches the first conversion pipe 22 and the second conversion pipe 23 on and off.

[0042] The connecting pipe 21 is L-shaped, and a thread is arranged on the outer surface of one end of the connecting pipe 21, and a first connecting flange 25 is fixed to the other end and the outer sides of the first conversion pipe 22 and the second conversion pipe 23;

[0043] The thread arrangement satisfies the installation between the connecting pipe 21 and the water cooling box 11. The first connecting flange 25 can also be connected to an external cold water pipeline, and cooperate with the second conversion pipe 23 to quickly transport cold water to the inside of the water cooling box 11.

[0044] The conversion solenoid valve 24 is a three-way setting, and the first conversion tube 22 is connected to the external cold air pipeline, and the second conversion tube 23 is connected to the external cold water pipeline;

[0045] The three-way setting of the conversion solenoid valve 24 meets the conversion requirements between the first conversion tube 22 and the second conversion tube 23;

[0046] Also included is a mounting assembly, which includes a mounting ring 41, a locking column 42, and a locking nut 43;

[0047] The mounting ring 41 is fixed to the inner side of the outer surface of the water cooling box 11, and the locking column 42 is equidistantly extended through the middle of the mounting ring 41, and the locking nut 43 is threadedly connected to the front and rear ends of the locking column 42;

[0048] The mounting ring 41 cooperates with the locking column 42 and the locking nut 43 to fix the water cooling box 11 on the surface of the turbine;

[0049] Working principle: After a set of water cooling boxes 11 are attached to the surface of the turbine, a plurality of locking columns 42 are sequentially inserted into the middle of the connected mounting ring 41, and locking nuts 43 are sequentially inserted into the ends of the locking columns 42 and tightened;

[0050] Next, the sealing cover 12 is tightened on the front of the water cooling box 11 through the control frame 13, and the sealing ring 14 is filled in the connection gap;

[0051] At this time, the first connecting flange 25 and the second conversion pipe 23 can be connected to the external cold water pipeline to supply cold water to the inside of the water cooling box 11, and the turbine can be cooled and protected by heat exchange;

[0052] When the cold water in the cold water tank 11 is replaced after use, the first conversion tube 22 and the second conversion tube 23 can be switched on and off through the controlled conversion solenoid valve 24, and the first conversion tube 22 is connected to the external cold air pipeline to temporarily deliver cold air to the inside of the water cooling box 11 to ensure that the turbine is in a continuous cooling state;

[0053] This solution can ensure that the turbine is always in a cooling state during the replacement of cold water, which is convenient for use and improves the use effect.

[0054] See also Figure 1-4 As shown, this embodiment is based on the above embodiment 1 and further includes a pumping and adjusting component, which includes a pumping and adjusting pipe 31, a pumping and adjusting solenoid valve 32, and a heat preservation sleeve 33;

[0055] The pumping pipe 31 is connected to the lower part of the outer surface of the water cooling box 11, and the pumping solenoid valve 32 penetrates the lower part of the outer surface of the pumping pipe 31, and the insulation sleeve 33 is sleeved on the front and rear of the outer surface of the pumping pipe 31 in sections;

[0056] The pumping pipe 31 pumps out the cold water with a certain temperature in the water inside the water cooling box 11, the pumping solenoid valve 32 is used for opening and closing control, and the insulation sleeve 33 keeps the residual heat of the cold water being pumped out to avoid heat loss;

[0057] The pumping pipe 31 is L-shaped, and threads are arranged evenly on the surface of one end of the pumping pipe 31, and a second connecting flange 34 is fixed on the other end;

[0058] The thread ensures the tightness of the connection of the pumping pipe 31, and the second connecting flange 34 is connected to the external drainage pipe to guide the discharge of the pumped cold water;

[0059] Working principle: After one end of the pumping pipe 31 is connected and installed with the water cooling box 11 by matching the thread, the insulation sleeve 33 is sleeved on the front and rear of the outer surface of the pumping pipe 31, and the plug on one side of the outer surface of the insulation sleeve 33 is opened to inject cold water;

[0060] Next, when the cold water is not replaced, the pumping solenoid valve 32 is in a closed state, and vice versa;

[0061] This solution can avoid damage caused by waste heat and save resources. At the same time, the central cavity setting of the insulation sleeve 33 can store cold water in advance and use waste heat exchange, which is energy-saving and environmentally friendly and improves the applicability of the structure.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cooling and protection device for a water turbine in a hydropower station, characterized in that: include: A water cooling protection component, the water cooling protection component comprising symmetrically arranged water cooling boxes (11); An emergency conversion assembly, the emergency conversion assembly comprising a connecting pipe (21), a first conversion pipe (22), a second conversion pipe (23), and a conversion solenoid valve (24); One end of the connecting pipe (21) is connected to the upper part of the outer surface of the water cooling box (11), and the first conversion pipe (22) is connected to the inner side of the outer surface of the connecting pipe (21), the second conversion pipe (23) is connected to the outer side of the outer surface of the connecting pipe (21), and the conversion solenoid valve (24) passes through the upper part of the outer surface of the connecting pipe (21).

2. A cooling and protecting device for a water turbine in a hydropower station according to claim 1, characterized in that: The connecting pipe (21) is L-shaped, and a thread is arranged on the outer surface of one end of the connecting pipe (21), and a first connecting flange (25) is fixed to the other end and the outer sides of the first conversion pipe (22) and the second conversion pipe (23).

3. A cooling and protecting device for a water turbine in a hydropower station according to claim 1, characterized in that: The conversion solenoid valve (24) is a three-way arrangement, and the first conversion tube (22) is connected to an external cold air pipeline, and the second conversion tube (23) is connected to an external cold water pipeline.

4. A cooling and protecting device for a water turbine in a hydropower station according to claim 1, characterized in that: The water-cooling protection assembly also includes a sealing cover (12), a control frame (13), and a sealing ring (14); The sealing cover (12) is threadedly connected to the middle of the front of the water cooling box (11), and the control frame (13) is equidistantly fixed to the front of the sealing cover (12), and the sealing ring (14) is filled in the connection gap between the sealing cover (12) and the water cooling box (11).

5. A cooling and protecting device for a water turbine in a hydropower station according to claim 1, characterized in that: It also includes a pumping and adjusting component, which includes a pumping and adjusting pipe (31), a pumping and adjusting solenoid valve (32), and a heat insulation sleeve (33); The pumping pipe (31) is connected to the lower part of the outer surface of the water cooling box (11), and the pumping solenoid valve (32) passes through the lower part of the outer surface of the pumping pipe (31), and the insulation sleeve (33) is segmentedly sleeved on the front and rear of the outer surface of the pumping pipe (31).

6. A cooling and protecting device for a water turbine in a hydropower station according to claim 5, characterized in that: The pumping pipe (31) is configured to be L-shaped, and threads are arranged equidistantly on the surface of one end of the pumping pipe (31), while a second connecting flange (34) is fixed to the other end.

7. A cooling and protecting device for a water turbine in a hydropower station according to claim 1, characterized in that: Also included is a mounting assembly, the mounting assembly comprising a mounting ring (41), a locking column (42), and a locking nut (43); The mounting ring (41) is fixed to the inner side of the outer surface of the water cooling box (11), and the locking columns (42) extend through the middle of the mounting ring (41) at equal distances, and the locking nuts (43) are threadedly connected to the front and rear ends of the locking columns (42).

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