Adjustable turbine casting riser structure
Patent Information
- Application Number
- CN202522080167.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-27
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-27
AI Technical Summary
[0003]现有技术中，普通汽轮机铸件浇铸冒口结构的能量高效回收效果较差与自供电、节能功能不佳的问题
[0012]1、该可调节式汽轮机铸件浇铸冒口结构，通过设置浇铸箱、调节机构、冒口机构、管路系统、电源箱、控制机构、压电陶瓷片与温差发电片，在浇铸箱内侧较长一侧面设置的温差发电片，为碲化铋基温差发电片，工作温度范围为50℃-300℃，可将冒口机构与外界的温差转化为电能，浇铸箱内侧较长一侧面设置的压电陶瓷片，为PZT-5A型压电陶瓷，谐振频率为30-70kHz，当冒口机构受到外界振动时，压电陶瓷片产生变形并输出电能，温差发电片与压电陶瓷片协同：两者产生的电能存储于电源箱内的蓄电池，为控制机构及调节机构供电，实现冒口结构的自供电运行的条件下，使得在汽轮机铸件浇铸过程中，冒口机构会因铸件浇铸产生较高的温度，与外界环境形成显著的温差。温差发电片能够充分利用这一温差，高效地将热能转化为电能。这种能量转化不仅实现了对浇铸过程中余热的回收利用，减少了能源的浪费，还为后续的供电提供了稳定的能源来源。同时，浇铸箱内侧较长一侧面设置的压电陶瓷片为PZT-5A型压电陶瓷，谐振频率处于30-70kHz之间。当冒口机构受到外界振动时，比如浇铸过程中设备的运行振动、金属液流动产生的振动等，压电陶瓷片会因变形而输出电能。温差发电片与压电陶瓷片所产生的电能，会被存储在电源箱内的蓄电池中。这些存储的电能能够为控制机构以及调节机构提供电力支持，从而实现了冒口结构的自供电运行。这种自供电模式，一方面大大节约了对外部能源的依赖，降低了能源成本；另一方面，也显著提升了冒口结构在无外部电源供应或者外部电源不稳定场景下的续航能力，有力地保障了浇铸过程中冒口结构控制与调节的连续性，确保浇铸作业能够顺利、稳定地进行，有效的解决了普通汽轮机铸件浇铸冒口结构的能量高效回收效果较差与自供电、节能功能不佳的问题。
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Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting technology, specifically to an adjustable riser structure for steam turbine castings. Background Technology
[0002] Casting is a method of producing objects by melting gold and silver into a liquid state and casting it using a mold. It is one of the earliest methods of gold and silver processing. Casting, on the other hand, involves pouring a mixed slurry into the engine casing, where it solidifies to form the engine propellant that meets design requirements.
[0003] In existing technologies, conventional steam turbine casting riser structures suffer from poor energy recovery efficiency and inadequate self-powering and energy-saving functions. Utility Model Content
[0004] This utility model provides an adjustable riser structure for steam turbine castings to solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable steam turbine casting riser structure, comprising an integral device body, the integral device body including a casting box, a support mechanism provided at the bottom periphery of the casting box, casters provided at the bottom periphery of the support mechanism, a protective door movably installed on the longer outer side of the casting box, an adjustment mechanism provided on the longer inner side of the casting box, a riser mechanism provided at the bottom periphery of the adjustment mechanism, a piping system provided at the top periphery of the riser mechanism, a piezoelectric ceramic plate provided on the longer inner side of the casting box, a thermoelectric generator provided on the longer inner side of the casting box, a power supply box provided on the shorter outer side of the casting box, and a control mechanism provided on the shorter outer side of the power supply box.
[0006] Furthermore, the thermoelectric generator set on the longer side inside the casting box is a bismuth telluride-based thermoelectric generator with an operating temperature range of 50℃-300℃, which can convert the temperature difference between the riser mechanism and the outside into electrical energy.
[0007] Furthermore, the piezoelectric ceramic sheet disposed on the longer side of the inner side of the casting box is a PZT-5A type piezoelectric ceramic with a resonant frequency of 30-70kHz. When the riser mechanism is subjected to external vibration, the piezoelectric ceramic sheet deforms and outputs electrical energy.
[0008] Furthermore, the thermoelectric generator and the piezoelectric ceramic plate work together: the electrical energy generated by both is stored in a battery in the power supply box to power the control and adjustment mechanisms, thereby enabling the riser structure to operate under its own power.
[0009] Furthermore, the protective door, which is movably installed on the longer side of the casting box, is connected by hinges and has a sealing rating of IP54. It can protect the internal structure of the casting box and facilitate maintenance.
[0010] Furthermore, the universal wheels provided at the bottom periphery of the support mechanism are nylon universal wheels with braking function, which facilitates the movement and positioning of the casting box.
[0011] Compared with the prior art, this utility model provides an adjustable steam turbine casting riser structure, which has the following advantages:
[0012] 1. This adjustable steam turbine casting riser structure comprises a casting box, an adjustment mechanism, a riser mechanism, a piping system, a power supply box, a control mechanism, piezoelectric ceramic plates, and thermoelectric generators. The thermoelectric generator, a bismuth telluride-based thermoelectric generator with an operating temperature range of 50℃-300℃, is located on the longer side of the casting box. It converts the temperature difference between the riser mechanism and the external environment into electrical energy. The piezoelectric ceramic plate, a PZT-5A type with a resonant frequency of 30-70kHz, deforms and outputs electrical energy when the riser mechanism is subjected to external vibration. The thermoelectric generator and the piezoelectric ceramic plate work together; the electrical energy generated is stored in a battery in the power supply box, powering the control and adjustment mechanisms. This allows the riser structure to operate under self-powered conditions. During the steam turbine casting process, the riser mechanism generates a high temperature due to the casting process, creating a significant temperature difference with the external environment. Thermoelectric generators can fully utilize this temperature difference to efficiently convert heat energy into electrical energy. This energy conversion not only recovers and utilizes waste heat during the casting process, reducing energy waste, but also provides a stable energy source for subsequent power supply. Meanwhile, the piezoelectric ceramic sheet installed on the longer side inside the casting box is a PZT-5A type piezoelectric ceramic with a resonant frequency between 30-70kHz. When the riser mechanism is subjected to external vibrations, such as vibrations from equipment operation during casting or vibrations generated by the flow of molten metal, the piezoelectric ceramic sheet will deform and output electrical energy. The electrical energy generated by the thermoelectric generator and the piezoelectric ceramic sheet is stored in a battery inside the power supply box. This stored electrical energy provides power support for the control and regulation mechanisms, thus enabling the riser structure to operate under self-powered conditions. This self-powered mode significantly reduces reliance on external energy sources and lowers energy costs. Furthermore, it significantly enhances the riser structure's endurance in scenarios without external power supply or with unstable external power, effectively ensuring the continuity of riser structure control and adjustment during the casting process. This guarantees the smooth and stable progress of casting operations and effectively solves the problems of poor energy recovery and inadequate self-powered and energy-saving functions in ordinary steam turbine casting riser structures. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is an enlarged structural diagram of the present invention (A).
[0015] Figure 3 This is a schematic diagram of the enlarged structure of the present invention (B).
[0016] In the diagram: 1. Main body of the overall device; 2. Casting box; 3. Support mechanism; 4. Casters; 5. Protective door; 6. Adjustment mechanism; 7. Riser mechanism; 8. Piping system; 9. Power supply box; 10. Control mechanism; 11. Piezoelectric ceramic plate; 12. Thermoelectric generator. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-3 This utility model discloses an adjustable riser structure for steam turbine castings.
[0019] Specifically, the adjustable steam turbine casting riser structure includes an integral device body 1, which includes a casting box 2. A support mechanism 3 is provided at the bottom periphery of the casting box 2, and casters 4 are provided at the bottom periphery of the support mechanism 3. A protective door 5 is movably installed on the longer periphery of the casting box 2. An adjustment mechanism 6 is provided on the longer inner side of the casting box 2. A riser mechanism 7 is provided at the bottom periphery of the adjustment mechanism 6. A piping system 8 is provided at the top periphery of the riser mechanism 7. A piezoelectric ceramic plate 11 is provided on the longer inner side of the casting box 2. A thermoelectric generator 12 is provided on the longer inner side of the casting box 2. A power supply box 9 is provided on the shorter periphery of the casting box 2. A control mechanism 10 is provided on the shorter periphery of the power supply box 9.
[0020] In this embodiment, the thermoelectric generator 12, which is a bismuth telluride-based thermoelectric generator, is installed on the longer side of the inner side of the casting box 2. Its operating temperature range is 50℃-300℃. It can convert the temperature difference between the riser mechanism 7 and the outside into electrical energy. The piezoelectric ceramic plate 11, which is a PZT-5A type piezoelectric ceramic, is installed on the longer side of the inner side of the casting box 2. Its resonant frequency is 30-70kHz. When the riser mechanism 7 is subjected to external vibration, the piezoelectric ceramic plate 11 deforms and outputs electrical energy. The thermoelectric generator 12 and the piezoelectric ceramic plate 11 work together: the electrical energy generated by the two is stored in the battery in the power supply box 9 to power the control mechanism 10 and the adjustment mechanism 6, so as to realize the self-powered operation of the riser structure.
[0021] Specifically, during the casting process of the steam turbine casting, the riser mechanism 7 generates a high temperature due to the casting process, creating a significant temperature difference with the external environment. Thermoelectric generator 12 can fully utilize this temperature difference to efficiently convert heat energy into electrical energy. This energy conversion not only recovers and utilizes the waste heat during the casting process, reducing energy waste, but also provides a stable energy source for subsequent power supply. Meanwhile, the piezoelectric ceramic plate 11 installed on the longer side inside the casting box 2 is a PZT-5A type piezoelectric ceramic with a resonant frequency between 30-70kHz. When the riser mechanism 7 is subjected to external vibrations, such as vibrations from equipment operation during casting or vibrations generated by the flow of molten metal, the piezoelectric ceramic plate 11 will deform and output electrical energy. The electrical energy generated by the thermoelectric generator 12 and the piezoelectric ceramic plate 11 is stored in the battery inside the power supply box 9. This stored electrical energy can provide power support for the control mechanism 10 and the regulating mechanism 6, thus realizing the self-powered operation of the riser structure. This self-powered mode greatly reduces reliance on external energy and lowers energy costs. On the other hand, it also significantly improves the endurance of the riser structure in scenarios without external power supply or with unstable external power, effectively ensuring the continuity of riser structure control and adjustment during the casting process, and ensuring that the casting operation can proceed smoothly and stably.
[0022] In this embodiment, the protective door 5, which is movably installed on the longer side of the casting box 2, is connected by hinges and has a sealing rating of IP54. It can protect the internal structure of the casting box 2 and facilitate maintenance. The casters 4, which are nylon casters with brakes, are provided at the bottom of the outer perimeter of the support mechanism 3 to facilitate the movement and positioning of the casting box 2.
[0023] Specifically, the protective door 5 effectively protects the internal structure of the casting tank 2, such as the adjusting mechanism 6 and the riser mechanism 7. It prevents external contaminants like dust and moisture from entering the casting tank 2, avoiding contamination or corrosion of internal components, thus ensuring stable equipment operation and reducing downtime due to component damage. The hinged connection makes opening and closing the protective door 5 very convenient. When maintenance and repair of the internal structure of the casting tank 2 are required, operators can easily open the protective door 5 to inspect, clean, and repair components such as the adjusting mechanism 6 and the riser mechanism 7. This significantly reduces the difficulty of equipment maintenance, improves maintainability, facilitates the timely detection and resolution of potential problems, extends the equipment's service life, and ensures long-term stable service for turbine casting operations. Furthermore, in factory workshops and other operating environments, operators can easily move the casting tank 2 to a suitable working position according to the specific location requirements of the turbine casting operation. Once the casting box 2 reaches the designated position, the operator can activate the braking function of the caster wheels 4 to keep it stably stationary and prevent displacement due to external factors. This convenient movement and positioning method greatly facilitates the casting operation of turbine castings, enabling the casting box 2 to flexibly adapt to different operating scenarios, meet the casting needs of different locations, and improve the flexibility and efficiency of the operation.
[0024] In summary, the adjustable steam turbine casting riser structure requires a comprehensive and detailed equipment inspection before activating the adjustable steam turbine casting riser structure when using the main body 1 of the integrated device. First, inspect the appearance of the casting tank 2 for cracks, deformation, or other damage to ensure its structural integrity and prevent leakage during casting. Next, inspect the thermoelectric generator 12 to ensure it is securely installed, clean, and free of debris, guaranteeing its proper thermoelectric power generation. Then, inspect the piezoelectric ceramic plate 11 to check its connection to the casting tank 2 for damage or breakage, ensuring it can generate electricity under vibration. Next, inspect the casters 4 to test their braking function, ensuring smooth and flexible wheel rotation without jamming. Then, inspect the protective door 5 to check its sealing, hinge connections, and smooth opening and closing. Next, inspect the adjusting mechanism 6 and riser mechanism 7. Manually operate the adjusting mechanism 6 to check its smooth operation without jamming or sticking, and check the integrity of all components of the riser mechanism 7. Finally, check the battery in the power supply box 9 to ensure sufficient charge and that the control mechanism 10 is functioning correctly, which can be tested by simulating the operation of the control mechanism 10. Based on the specific location requirements of the turbine casting operation, the operator pushes the casting box 2 and uses the casters 4 to move it to the appropriate working position. During the movement, the operator carefully observes the surrounding environment to avoid collisions with other equipment or obstacles. After reaching the designated position, the braking function of the casters 4 is activated to fix the casting box 2, ensuring its stability during the casting process and preventing displacement, thus providing a stable foundation for subsequent casting operations. Once everything is ready, the turbine casting operation begins. Molten metal is transported through the pipeline system 8 to the riser mechanism 7 and other relevant parts, and the casting is carried out according to the predetermined casting process. During the casting process, the flow of molten metal and the casting progress are closely monitored. As the casting operation continues, the temperature of the riser mechanism 7 gradually rises, creating a significant temperature difference with the external environment. At this time, the thermoelectric generator 12 inside the casting box 2 begins to work, converting heat energy into electrical energy using the principle of thermoelectric power generation. This converted electrical energy is promptly stored in the battery in the power supply box 9, providing a reserve for subsequent power supply. During the casting process, the operation of the equipment and the flow of molten metal generate external vibrations. When these vibrations are transmitted to the riser mechanism 7, the piezoelectric ceramic sheet 11 inside the casting box 2 deforms due to the vibration, thereby generating electrical energy. The generated electrical energy is also stored in the battery in the power supply box 9, further increasing the energy reserve. The electrical energy stored in the battery in the power supply box 9 provides power to the control mechanism 10. The control mechanism 10 precisely controls the adjustment mechanism 6 according to the real-time needs of the casting operation.Under the command of the control mechanism 10, the regulating mechanism 6 adjusts the relevant parameters of the riser mechanism 7, such as the size and position of the riser, to ensure the quality of the turbine casting and to ensure that the casting meets the design requirements for dimensional accuracy, mechanical properties, and other indicators. Control and regulation are continuously performed throughout the casting process to ensure the smooth progress of the casting operation. After the turbine casting is completed, the delivery of molten metal is stopped, ending the casting operation. Then, the control mechanism 10 is shut down, stopping the operation of the regulating mechanism 6, riser mechanism 7, and other related components, ensuring the equipment is in a safe shutdown state. After shutdown, the operator opens the protective door 5 and conducts a comprehensive inspection of the regulating mechanism 6, riser mechanism 7, and other components inside the casting tank 2. The operator checks for wear or damage to the regulating mechanism 6 and for residual molten metal or impurities in the riser mechanism 7. The residual molten metal and impurities are cleaned to maintain internal cleanliness. Next, inspect the thermoelectric generator 12 and piezoelectric ceramic plate 11, cleaning their surfaces with a soft cloth or other cleaning tools to remove dust and debris, ensuring cleanliness for normal power generation next time. Then, inspect the casters 4, cleaning them to remove dust and debris, and lubricating the rotating parts to ensure smooth rotation and proper braking function. Finally, check the battery in the power box 9. If the battery is low, charge it using an external power source to ensure sufficient power for the next operation. Simultaneously, inspect the control mechanism 10 for any abnormalities to ensure normal operation next time. Through comprehensive maintenance, the equipment can operate normally and stably upon next startup, extending its service life and improving its reliability. Therefore, this invention is a very practical product worthy of widespread application.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable steam turbine casting riser structure, comprising an integral device body (1), characterized in that: The main body (1) of the overall device includes a casting box (2). A support mechanism (3) is provided at the bottom periphery of the casting box (2). A caster wheel (4) is provided at the bottom periphery of the support mechanism (3). A protective door (5) is movably installed on the longer side periphery of the casting box (2). An adjustment mechanism (6) is provided on the longer side inner periphery of the casting box (2). A riser mechanism (7) is provided at the bottom periphery of the adjustment mechanism (6). A pipeline system (8) is provided at the top periphery of the riser mechanism (7). A piezoelectric ceramic sheet (11) is provided on the longer side inner periphery of the casting box (2). A thermoelectric generator (12) is provided on the longer side inner periphery of the casting box (2). A power supply box (9) is provided on the shorter side periphery of the casting box (2). A control mechanism (10) is provided on the shorter side periphery of the power supply box (9).
2. The adjustable steam turbine casting riser structure according to claim 1, characterized in that: The thermoelectric generator (12) installed on the longer side inside the casting box (2) is a bismuth telluride-based thermoelectric generator with a working temperature range of 50℃-300℃. It can convert the temperature difference between the riser mechanism (7) and the outside into electrical energy.
3. The adjustable steam turbine casting riser structure according to claim 1, characterized in that: The piezoelectric ceramic sheet (11) arranged on the longer side of the inner side of the casting box (2) is a PZT-5A type piezoelectric ceramic with a resonant frequency of 30-70kHz. When the riser mechanism (7) is subjected to external vibration, the piezoelectric ceramic sheet (11) deforms and outputs electrical energy.
4. The adjustable steam turbine casting riser structure according to claim 1, characterized in that: The thermoelectric generator (12) and the piezoelectric ceramic plate (11) work together: the electrical energy generated by the two is stored in the battery in the power supply box (9) to power the control mechanism (10) and the adjustment mechanism (6), so as to realize the self-powered operation of the riser structure.
5. The adjustable steam turbine casting riser structure according to claim 1, characterized in that: The protective door (5) that is movably installed on the longer side of the casting box (2) is connected by hinges and has a sealing rating of IP54. It can protect the internal structure of the casting box (2) and facilitate maintenance.
6. The adjustable steam turbine casting riser structure according to claim 1, characterized in that: The universal wheels (4) provided at the bottom periphery of the support mechanism (3) are nylon universal wheels with braking function, which facilitates the movement and positioning of the casting box (2).