Multi-dimension adjustable hydroelectric generator pit heater control device

Abstract

The utility model discloses a kind of multi-dimension adjustable water turbine generator set machine pit heater control device, including the support box body for installing heater, the support box body is connected with the subsection lifting rod top by universal joint, subsection lifting rod bottom is fixedly connected with base top, base is installed fixed on machine pit wind tunnel inner wall, heat insulation plate is equipped in the support box body, heater is arranged on the side of heat insulation plate, and the other side is arranged with cooling fan, and heater control end is connected with controller control signal output end;The utility model is optimized by structure and function integration, realize the flexible adjustment of height, angle, heating area, improve cooling performance, operation safety and intelligent level simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment control technology for hydro-generator sets, and in particular to a multi-dimensional adjustable control device for a hydro-generator set pit heater. Background Technology

[0002] A pit heater is an air heating device used in the pit of a hydro-generator unit to achieve dehumidification, anti-condensation, and heat preservation. Its core function is to maintain the pit temperature when the unit is shut down or in low-temperature environments, preventing condensation on equipment surfaces and avoiding problems such as insulation dampness, metal corrosion, and pipe freezing. It also reduces thermal stress during unit startup, ensuring safe operation and extending the service life of the equipment. Existing pit heater control devices have the following shortcomings: (1) Traditional heating devices have a single adjustment dimension, supporting only temperature adjustment, and cannot meet the needs of adjusting height, angle and heating area under complex working conditions.

[0003] (2) Traditional heating devices are installed on the inner wall of the wind tunnel in the machine pit. The installation is inflexible, the fixed structure lacks multiple positioning functions, it is difficult to adapt to different machine pit sizes and layouts, and the whole device needs to be disassembled for maintenance, which is inconvenient to operate.

[0004] (3) Traditional heating devices have insufficient heat dissipation. They only have heating function and lack effective heat dissipation performance. Long-term operation at high temperature can easily lead to aging of electrical components, overheating and damage.

[0005] (4) Traditional heating devices have poor human-machine interaction, lack real-time temperature display and status indication functions, and are inefficient and prone to misoperation.

[0006] Therefore, there is an urgent need for a pit heater control device that can achieve multi-dimensional adjustment, efficient heat dissipation, safety and stability, and intelligent control functions. Summary of the Invention

[0007] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a multi-dimensional adjustable control device for the generator pit heater of a hydro-generator unit. Through structural optimization and functional integration, it realizes flexible adjustment of height, angle and heating area, while improving heat dissipation performance, operational safety and intelligence level.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a multi-dimensional adjustable hydro-generator pit heater control device, including a support box for installing the heater, the support box being connected to the top of the segmented lifting rod via a universal joint, the bottom of the segmented lifting rod being fixedly connected to the top of the base, the base being installed and fixed on the inner wall of the pit wind tunnel, the support box being provided with a heat insulation plate, a heater being provided on one side of the heat insulation plate, and a cooling fan being provided on the other side, the heater control terminal being connected to the controller control signal output terminal.

[0009] Preferably, the controller is installed inside the support box, near the side where the heater is located, and the support box is also provided with heat dissipation holes on one side.

[0010] Preferably, a counterweight is also provided on one side of the support box.

[0011] Preferably, the bottom of the support box is connected to the top of the two segmented lifting rods via a universal joint, and the universal joint is a damped ball joint structure.

[0012] Preferably, the segmented lifting rod is a multi-stage pneumatic telescopic rod structure.

[0013] Preferably, the segmented lifting rod is a multi-stage hydraulic telescopic rod structure.

[0014] Preferably, the segmented lifting rod is a multi-stage electric telescopic rod structure.

[0015] Preferably, the segmented lifting rod includes a fixed cylinder, a first-stage movable cylinder, a second-stage movable cylinder, and a third-stage movable cylinder that are slidably fitted together in sequence; the bottom of the fixed cylinder is connected to the bottom of the telescopic drive rod, and a first pulley is hinged to the top of the telescopic drive rod. A first traction rope is wound around the surface of the first pulley, the lower end of the first traction rope is fixedly connected to the bottom of the fixed cylinder, and the upper end passes over the first pulley and is fixedly connected to the bottom of the second movable cylinder; a second pulley is hinged to the bottom of the first-stage movable cylinder, and a second traction rope is wound around the surface of the second pulley, one end of the second traction rope passing over the first... Two pulleys are fixedly connected to the top of the fixed cylinder, and the other end is fixedly connected to the bottom of the second movable cylinder. The bottom of the second movable cylinder is also provided with a third pulley. A third traction rope is wound around the surface of the third pulley. One end of the third traction rope passes around the third pulley and is fixedly connected to the top of the telescopic drive rod, and the other end is fixedly connected to the bottom of the fixed column. The side of the fixed column is fixed to the bottom of the third movable cylinder. The top of the fixed column is connected to one end of a fourth traction rope. The other end of the fourth traction rope passes around the fourth pulley and is fixedly connected to the bottom of the first movable cylinder. The fourth pulley is hinged to the top of the second pulley.

[0016] Preferably, the telescopic drive rod is an electric push rod structure, with its cylinder bottom fixedly connected to the bottom of the first-stage movable cylinder via a mounting plate, and its telescopic rod bottom connected to the bottom of the fixed cylinder.

[0017] Preferably, the inner side of the fixed cylinder is slidably connected to the outer side of the first-stage movable cylinder, the inner side of the first-stage movable cylinder is slidably connected to the outer side of the second-stage movable cylinder, the inner side of the second-stage movable cylinder is slidably connected to the outer side of the third-stage movable cylinder, the upper end of the third-stage movable cylinder is connected to the bottom of the support box through a universal joint, and the bottom of the fixed cylinder is fixedly connected to the top of the base.

[0018] The beneficial effects of this utility model are: 1. This utility model achieves flexible adjustment of height, angle, and heating area through multi-dimensional adjustment, efficient heat dissipation, intelligent control, and stable design. It also improves heat dissipation performance, operational safety, and intelligence level by optimizing the structure and integrating functions. It solves the problems of insufficient flexibility, low safety, and complex operation of traditional pit heater control devices, and has significant technical advantages and practical value.

[0019] 2. This utility model achieves three-dimensional adjustment of vertical height, horizontal angle and tilt angle by combining segmented lifting rods with universal joints, adapting to different pit structures and heating requirements; the heat insulation plate can reduce the transfer of heat to non-target areas, avoiding the risk of local overheating in the pit or equipment burns. Attached Figure Description

[0020] Figure 1 A schematic diagram of a multi-dimensional adjustable control device for a turbine generator pit heater. Figure 2 This is a schematic diagram of the internal structure of the segmented lifting rod corresponding to Example 4; Figure 3 This is a schematic diagram of the left-side structure supporting the box. Figure 4 This is a top view of the supporting structure of the box. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-4 As shown, a multi-dimensional adjustable hydro-generator pit heater control device includes a support box 2 for installing a heater 1. The support box 2 is connected to the top of a segmented lifting rod 4 via a universal joint 3. The bottom of the segmented lifting rod 4 is fixedly connected to the top of a base 5. The base 5 is installed and fixed on the inner wall of the pit air tunnel. A heat insulation plate 6 is provided inside the support box 2. The heater 1 is installed on one side of the heat insulation plate 6, and a cooling fan 7 is installed on the other side. The control terminal of the heater 1 is connected to the control signal output terminal of a controller 8.

[0023] Preferably, the controller 8 is installed inside the support housing 2, near the heater 1. A heat dissipation hole 2.1 is also provided on one side of the support housing 2. The heat dissipation hole 2.1 and the cooling fan 7 can form a forced air cooling system, effectively reducing the temperature of internal components and extending the equipment's lifespan.

[0024] Preferably, a counterweight 9 is also provided on one side of the support box 2. The counterweight 9 can ensure the stability of the device in a vibration environment.

[0025] Preferably, the bottom of the support housing 2 is connected to the top of the two segmented lifting rods 4 via a universal joint 3, where the universal joint 3 is a damped ball joint structure. This design allows for adjustment of the height of the support housing 2 when the two segmented lifting rods 4 rise and fall synchronously, and for adjustment of the tilt angle of the support housing 2 when the two lifting rods 4 rise and fall asynchronously or when one rises while the other falls. Furthermore, because the universal joint 3 is a damped ball joint structure, the angle of the support housing 2 can be manually adjusted in other directions, and it can be suspended at any position.

[0026] More preferably, the controller 8 is also equipped with a display screen, indicator lights, and DIP switches. The display screen can show the temperature, humidity, fault information and operating status in real time. The indicator lights provide intuitive feedback on the working mode and fault indication, reducing the difficulty of operation and the probability of misoperation. The DIP switches support extended functions such as timing and mode switching to meet diverse working conditions.

[0027] In addition, the controller 8 surface is equipped with a temperature adjustment knob for manually setting the target temperature, with an adjustment range covering -30℃ to +120℃. A humidity adjustment knob is also provided for manually adjusting the target humidity, with an adjustment range covering 0~100%. Control buttons are provided for operating the segmented lifting rod's "up / down" position and controlling the support box's "left / right rotation," thus achieving angle control of the support box.

[0028] In addition, the base can be standardized to be compatible with various models and can be detachably connected to the inner wall of the wind tunnel pit via fixing bolts. This modular structure supports partial disassembly and replacement without requiring a complete shutdown, reducing maintenance costs.

[0029] More preferably, the power switch is located on the right side of the support housing and is used to control the power switch of the device. The power socket is located on the right side of the support housing and is used to provide operating power to the device for connection to mains power. The sensor socket is located on the right side of the support housing and is used to connect the wiring of the temperature sensor and humidity sensor.

[0030] The segmented lifting rod 4 of this utility model can adopt the following commonly used telescopic rod structures: Example 1: The segmented lifting rod 4 is a multi-stage pneumatic telescopic rod structure.

[0031] Example 2: The segmented lifting rod 4 is a multi-stage hydraulic telescopic rod structure.

[0032] Example 3: The segmented lifting rod 4 is a multi-stage electric telescopic rod structure.

[0033] Alternatively, the following new telescopic rod structure can be used: Example 4: The segmented lifting rod 4 includes a fixed cylinder 4.1, a first-stage movable cylinder 4.2, a second-stage movable cylinder 4.3, and a third-stage movable cylinder 4.4 that are slidably fitted together in sequence. The bottom of the fixed cylinder 4.1 is connected to the bottom of the telescopic drive rod 4.5. The top of the telescopic drive rod 4.5 is hinged with a first pulley 4.6. A first traction rope 4.7 is wound around the surface of the first pulley 4.6. The lower end of the first traction rope 4.7 is fixedly connected to the bottom of the fixed cylinder 4.1, and the upper end passes over the first pulley 4.6 and is fixedly connected to the bottom of the second movable cylinder 4.3. The bottom of the first-stage movable cylinder 4.2 is hinged with a second pulley 4.8. A second traction rope 4.9 is wound around the surface of the second pulley 4.8. One end of the second traction rope 4.9 passes over the second pulley 4.8 and... The top of the fixed cylinder 4.1 is fixedly connected, and the other end is fixedly connected to the bottom of the second movable cylinder 4.3. The bottom of the second movable cylinder 4.3 is also provided with a third pulley 4.10. A third traction rope 4.11 is wound around the surface of the third pulley 4.10. One end of the third traction rope 4.11 passes over the third pulley 4.10 and is fixedly connected to the top of the telescopic drive rod 4.5. The other end is fixedly connected to the bottom of the fixed column 4.12. The side of the fixed column 4.12 is fixed to the bottom of the third-stage movable cylinder 4.4. The top of the fixed column 4.12 is connected to one end of the fourth traction rope 4.13. The other end of the fourth traction rope 4.13 passes over the fourth pulley 4.14 and is fixedly connected to the bottom of the first-stage movable cylinder 4.2. The fourth pulley 4.14 is hinged to the top of the second pulley 4.8.

[0034] The telescopic drive rod 4.5 is an electric push rod structure. Its cylinder bottom is fixedly connected to the bottom of the first-stage movable cylinder 4.2 through the mounting plate 4.5.1, and its telescopic rod bottom is connected to the bottom of the fixed cylinder 4.1.

[0035] The inner side of the fixed cylinder 4.1 is slidably connected to the outer side of the first-stage movable cylinder 4.2. The inner side of the first-stage movable cylinder 4.2 is slidably connected to the outer side of the second-stage movable cylinder 4.3. The inner side of the second-stage movable cylinder 4.3 is slidably connected to the outer side of the third-stage movable cylinder 4.4. The upper end of the third-stage movable cylinder 4.4 is connected to the bottom of the support box 2 through a universal joint 3. The bottom of the fixed cylinder 4.1 is fixedly connected to the top of the base 5.

[0036] The working process of the above embodiment 4 is as follows: When the telescopic drive rod 4.5 extends, it drives the first-stage movable cylinder 4.2 upward. The extension of the telescopic drive rod 4.5 causes the first pulley 4.6 to move upward, thereby generating tension on the bottom of the second movable cylinder 4.3 through the first traction rope 4.7. This causes the second movable cylinder 4.3 to also move upward. At this time, the first pulley 4.6 is equivalent to a movable pulley structure, characterized by: "The movable pulley is a double-efficiency mechanism, requiring twice the distance; when the movable pulley moves a distance of diameter D, the free end of the traction rope will move a distance of 2D." Therefore, the second movable cylinder 4.3 moves a greater distance upward relative to the first-stage movable cylinder 4.2. This makes the second movable cylinder 4.3, relative to the first-stage movable cylinder 4.2, move a greater distance upward. The first-stage movable cylinder 4.2 extends upwards; at this time, the distance between the fourth pulley 4.14 and the bottom of the first-stage movable cylinder 4.2 increases, thereby causing one end of the fourth traction rope 4.13 to pull the fixed column 4.12 and the third traction rope 4.11 to move upwards synchronously; similarly, since the fourth pulley 4.14 is equivalent to a movable pulley structure, the fixed column 4.12 moves upward a greater distance relative to the second movable cylinder 4.3, ultimately causing the third-stage movable cylinder 4.4 to extend upwards relative to the second movable cylinder 4.3; therefore, through the cooperation between the above-mentioned multi-stage movable cylinders, traction ropes and pulleys, the purpose of multi-stage extension and retraction can be achieved; conversely, when the extension drive rod 4.5 retracts, the working process is the opposite of the above-mentioned extension process.

[0037] The working principle of this utility model is explained as follows: The device controls the extension and retraction of two segmented lifting rods 4 via a controller, enabling vertical height adjustment of the support box to accommodate different pit depths. When the two lifting rods 4 move asynchronously or one rises while the other falls, the tilt angle of the support box 2 can be adjusted. Furthermore, because the universal joint 3 is a damped ball joint structure, the angle of the support box 2 can be manually adjusted in other directions, and it can be suspended at any position to ensure precise alignment of the heater 1 with the target area.

[0038] After setting the target temperature and humidity using the temperature and humidity adjustment knobs, the heating element and cooling fan will start and stop according to the real-time temperature difference and humidity setting values. The display screen will simultaneously display the pit temperature, humidity, fault information and working status. The DIP switch can preset the heating mode.

[0039] In addition, turning on the cooling fan creates forced convection through the heat dissipation holes, forming a forced air cooling system that effectively reduces the temperature of internal components and extends the equipment's lifespan.

[0040] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A multi-dimensionally adjustable hydroelectric generator pit heater control device, comprising a support box (2) for mounting a heater (1), characterized in that: The support box (2) is connected to the top of the segmented lifting rod (4) via a universal joint (3). The bottom of the segmented lifting rod (4) is fixedly connected to the top of the base (5). The base (5) is installed and fixed on the inner wall of the machine pit wind tunnel. The support box (2) is provided with a heat insulation plate (6). A heater (1) is provided on one side of the heat insulation plate (6), and a cooling fan (7) is provided on the other side. The control end of the heater (1) is connected to the control signal output end of the controller (8).

2. The multi-dimension adjustable hydro-turbine generator pit heater control device according to claim 1, wherein: The controller (8) is installed inside the support box (2), near the side where the heater (1) is located. The support box (2) also has a heat dissipation hole (2.1) on one side.

3. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: A counterweight (9) is also provided on one side of the support box (2).

4. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The bottom of the support box (2) is connected to the top of the two segmented lifting rods (4) through a universal joint (3), and the universal joint (3) is a damped ball joint structure.

5. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The segmented lifting rod (4) is a multi-stage pneumatic telescopic rod structure.

6. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The segmented lifting rod (4) is a multi-stage hydraulic telescopic rod structure.

7. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The segmented lifting pole (4) is a multi-stage electric telescopic pole structure.

8. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The segmented lifting rod (4) includes a fixed cylinder (4.1), a first-stage movable cylinder (4.2), a second-stage movable cylinder (4.3), and a third-stage movable cylinder (4.4) that slide in sequence. The bottom of the fixed cylinder (4.1) is connected to the bottom of the telescopic drive rod (4.5). The top of the telescopic drive rod (4.5) is hinged with a first pulley (4.6). A first traction rope (4.7) is wound around the surface of the first pulley (4.6). The lower end of the first traction rope (4.7) is fixedly connected to the bottom of the fixed cylinder (4.1), and the upper end passes over the first pulley (4.6) and is fixedly connected to the bottom of the second movable cylinder (4.3). The bottom of the first-stage movable cylinder (4.2) is hinged with a second pulley (4.8). A second traction rope (4.9) is wound around the surface of the second pulley (4.8). One end of the second traction rope (4.9) passes over the second pulley (4.8) and... The top of the fixed cylinder (4.1) is fixedly connected, and the other end is fixedly connected to the bottom of the second movable cylinder (4.3); the bottom of the second movable cylinder (4.3) is also provided with a third pulley (4.10), and a third traction rope (4.11) is wound around the surface of the third pulley (4.10). One end of the third traction rope (4.11) passes around the third pulley (4.10) and is fixedly connected to the top of the telescopic drive rod (4.5), and the other end is fixedly connected to the bottom of the fixed column (4.12); the side of the fixed column (4.12) is fixed to the bottom of the third movable cylinder (4.4), and the top of the fixed column (4.12) is connected to one end of the fourth traction rope (4.13). The other end of the fourth traction rope (4.13) passes around the fourth pulley (4.14) and is fixedly connected to the bottom of the first movable cylinder (4.2), wherein the fourth pulley (4.14) is hinged to the top of the second pulley (4.8).

9. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The telescopic drive rod (4.5) is an electric push rod structure. Its cylinder bottom is fixedly connected to the bottom of the first-stage movable cylinder (4.2) through the mounting plate (4.5.1), and its telescopic rod bottom is connected to the bottom of the fixed cylinder (4.1).

10. The multi-dimension adjustable hydro-turbine generator pit heater control device of claim 1, wherein: The inner side of the fixed cylinder (4.1) is slidably connected to the outer side of the first-stage movable cylinder (4.2), the inner side of the first-stage movable cylinder (4.2) is slidably connected to the outer side of the second-stage movable cylinder (4.3), the inner side of the second-stage movable cylinder (4.3) is slidably connected to the outer side of the third-stage movable cylinder (4.4), the upper end of the third-stage movable cylinder (4.4) is connected to the bottom of the support box (2) through a universal joint (3), and the bottom of the fixed cylinder (4.1) is fixedly connected to the top of the base (5).

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