Steam temperature control device for steam turbine of thermal power plant

Abstract

The application provides a steam turbine water injection temperature adjusting device for a thermal power plant. The temperature adjusting device comprises a working base plate, a water storage tank, a cooling tank, a water pump device and an auxiliary cooling tank. The water storage tank is installed on the working base plate, and a refrigerator assembly is arranged in the water storage tank. The cooling tank is installed above the water storage tank, and a cooling pipe is arranged in the cooling tank. The cooling tank is provided with an air inlet and an air outlet. The water pump device is installed on the outer wall of the water storage tank and is connected with the inside of the water storage tank and the cooling pipe. The auxiliary cooling tank is installed on the working base plate, and a circulating pipe is arranged in the auxiliary cooling tank. The two ends of the circulating pipe are connected with the cooling pipe and the inside of the water storage tank respectively. The water circulation channel is formed by the water storage tank, the water pump device, the cooling pipe and the circulating pipe. Cold water is continuously delivered to the inside of the cooling tank, and the hot water discharged from the cooling tank is cooled and then flows back to the water storage tank, so that the high-temperature gas in the cooling tank can be effectively cooled.

Description

Technical Field

[0001] This application belongs to the field of thermal power plant temperature control technology, specifically, it relates to a thermal power plant steam turbine water spray temperature control device. Background Technology

[0002] The water spray temperature control system for steam turbines in thermal power plants ensures that the turbines operate under optimal conditions, preventing efficiency losses and equipment damage caused by excessive temperature fluctuations. Utilizing high-temperature and corrosion-resistant materials, it maintains stable operation in high-temperature and high-pressure environments, extending equipment lifespan. Furthermore, the water spray temperature control system reduces overheating and overcooling, lowering equipment failure rates and minimizing downtime. This plays a crucial role in improving the overall economic efficiency of thermal power plants. The system's efficient temperature control function also optimizes steam thermal energy utilization, improves fuel efficiency, reduces energy consumption, and consequently reduces environmental pollutant emissions. Due to its high reliability and durability, using this system significantly reduces maintenance frequency and costs, further lowering the operating costs of thermal power plants.

[0003] Therefore, how to further improve the cooling efficiency of temperature control devices to enhance the cooling effect is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem addressed in this application is: how to improve the cooling efficiency of a temperature control device.

[0005] This application provides a steam turbine water spray temperature control device for thermal power plants, the steam turbine water spray temperature control device comprising:

[0006] Working base plate;

[0007] A water storage tank is installed on the working base plate, and a refrigeration unit is installed inside the water storage tank;

[0008] A cooling box is installed above the water storage tank. The cooling box is equipped with cooling pipes inside and has an air inlet and an air outlet.

[0009] A water pump device is installed on the outer wall of the water storage tank and the water pump device is connected to the interior of the water storage tank and the cooling pipe;

[0010] An auxiliary cooling box is installed on the working base plate. The auxiliary cooling box is equipped with a circulation pipe inside, and the two ends of the circulation pipe are respectively connected to the cooling pipe and the interior of the water storage tank.

[0011] Optionally, the water pump device includes a working pump and a connecting pipe, with the two ends of the connecting pipe respectively connecting the working pump and the cooling pipe. The working pump is connected to the interior of the water storage tank to draw cold water from the water storage tank to the cooling pipe.

[0012] Optionally, the air inlet of the cooling box is equipped with a control valve, the air outlet is equipped with an air outlet pipe, and the side wall of the air outlet pipe is equipped with several exhaust pipes.

[0013] Optionally, the auxiliary cooling box is equipped with a multi-row fan assembly, which is used to dissipate heat from the circulation pipe.

[0014] Optionally, the auxiliary cooling box is provided with a rectangular plate, the rectangular plate having ventilation blade assemblies, and the rectangular plate and the fan assembly are respectively located on both sides of the circulation pipe.

[0015] Optionally, a protective mesh plate is provided between the fan assembly and the circulation pipe.

[0016] The water spray temperature control device for steam turbines in thermal power plants provided in this application has the following technical advantages:

[0017] A water circulation system is formed by a water storage tank, a water pump, a cooling pipe, and a circulation pipe. Cold water is continuously transported into the cooling chamber, and the hot water discharged from the cooling chamber is cooled and then returned to the water storage tank. This effectively cools the high-temperature gas in the cooling chamber. Attached Figure Description

[0018] Figure 1 This is a perspective view of a steam turbine water spray temperature control device for a thermal power plant according to one or more embodiments.

[0019] Figure 2 This is a perspective view of a steam turbine water spray temperature control device for a thermal power plant according to one or more embodiments.

[0020] Figure 3 This is a cross-sectional view of a steam turbine water spray temperature control device for a thermal power plant according to one or more embodiments.

[0021] Figure 4 This is a schematic diagram of some components of an auxiliary cooling box according to one or more embodiments. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] Before describing the various embodiments of this application in detail, the technical concept of this application is first briefly described: Current steam turbine water spray temperature control devices in thermal power plants suffer from problems such as low cooling efficiency leading to poor cooling performance. Therefore, this application provides a steam turbine water spray temperature control device for thermal power plants. The key improvement lies in utilizing a water storage tank, a water pump device, a cooling pipe, and a circulation pipe to form a water circulation path, continuously supplying cold water to the cooling tank, and cooling the hot water discharged from the cooling tank before returning it to the water storage tank. This effectively cools the high-temperature gas in the cooling tank. The specific principle of the steam turbine water spray temperature control device for thermal power plants of this application will be described below with reference to more embodiments.

[0024] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the turbine water spray temperature control device for thermal power plants in this embodiment includes a working base plate 10, a water storage tank 20, a cooling tank 30, a water pump device 40, and an auxiliary cooling tank 50. The water storage tank 20 is installed on the working base plate 10, and a cooler assembly 21 is installed inside the water storage tank 20. The cooling tank 30 is installed above the water storage tank 20, and a cooling pipe 31 is installed inside the cooling tank 30. The cooling tank 30 has an air inlet 32 ​​and an air outlet. The water pump device 40 is installed on the outer wall of the water storage tank and connects the inside of the water storage tank 20 to the cooling pipe 31. The auxiliary cooling tank 50 is installed on the working base plate 10, and a circulation pipe 51 is installed inside the auxiliary cooling tank 50. The two ends of the circulation pipe 31 are connected to the cooling pipe 31 and the inside of the water storage tank 20, respectively. The hot water output from the cooling pipe 31 is transported to the water storage tank 20 through the circulation pipe 51, and the hot water is cooled during the transportation process. The refrigeration unit 21 is used to cool the temperature inside the water storage tank 20, thereby ensuring that the water in the water storage tank 20 is at the operating temperature for subsequent operations.

[0025] In one or more embodiments, the water pump device 40 includes a working pump 41 and a connecting pipe 42. The two ends of the connecting pipe 42 are respectively connected to the working pump 41 and the cooling pipe 31. The working pump 41 is connected to the interior of the water storage tank 20 to draw cold water from the water storage tank 20 to the cooling pipe 31 to reduce the temperature of the cooling box 30. High-temperature gas enters the cooling box 30 from the air inlet 32 ​​and is discharged from the air outlet after being cooled.

[0026] For example, the air inlet 32 ​​of the cooling box 30 is provided with a control valve 33, the air outlet is provided with an air outlet pipe 34, and the side wall of the air outlet pipe 34 is provided with a plurality of exhaust pipes 35, so as to facilitate the control of the flow in the air inlet 32 ​​by using the control valve 33, and thus facilitate the connection of other components to the air inlet 32, so as to facilitate the entry of the gas generated by the operation of the steam turbine of the thermal power plant into the cooling box 30 for temperature regulation.

[0027] In one or more embodiments, such as Figure 4 As shown, the auxiliary cooling box 50 is equipped with multiple rows of fan assemblies 52, which are used to dissipate heat from the circulation pipe 51. The auxiliary cooling box 50 has a rectangular plate 53 with ventilation blades. The rectangular plate 53 and the fan assemblies 52 are located on opposite sides of the circulation pipe 51. The fan assemblies 12 drive airflow, thereby enhancing the vertical airflow around the circulation pipe 51, facilitating the cooling of the water used in the circulation pipe 51. This ensures the water used for cooling can be reused in subsequent cooling operations. After cooling, the water is circulated into the water storage tank 20 for storage, facilitating future use. The auxiliary cooling box 50 also has multiple mounting slots 55, within which the fan assemblies 52 are installed.

[0028] For example, a protective mesh plate 54 is provided between the fan assembly 52 and the circulation pipe 51. The protective mesh plate 54 separates the fan assembly 52 from the circulation pipe 51, which can avoid safety issues during operation and thus facilitate the subsequent stable operation of the components.

[0029] For example, the cooling box 30, cooling pipe 31 and circulation pipe 51 are all made of high-temperature resistant material. The high-temperature resistant material can withstand the high-temperature steam environment, ensuring that the device can operate stably for a long time without being damaged by heat, significantly extending the service life of the equipment, ensuring the stable operation of the components, and ensuring the safe production of the power plant.

[0030] The working principle of the steam turbine water spray temperature control device in this embodiment is as follows:

[0031] In the use of structural components, the circulation pipe 51 facilitates the cooling of water used in the cooling box 30, allowing it to be circulated into the storage tank 20 for later use. The circulation pipe 51 also facilitates airflow driven by the fan assembly 52, enhancing airflow around the circulation pipe 51 and further cooling the water within it. This ensures the water is readily available for cooling operations, as it is circulated back into the storage tank 20 after cooling. A protective mesh plate 54 protects the fan assembly 52, ensuring stable operation. The storage tank 20 stores the cooling water, guaranteeing stable operation. This structure facilitates water cooling during equipment operation, promoting water circulation and ensuring efficient cooling.

[0032] The specific embodiments of this application have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that modifications and improvements can be made to these embodiments without departing from the principles and spirit of this application as defined by the claims and their equivalents, and such modifications and improvements should also be within the protection scope of this application.

Claims

1. A water spray temperature control device for steam turbines in thermal power plants, characterized in that, The thermal power plant turbine water spray temperature control device includes: Working base plate; A water storage tank is installed on the working base plate, and a refrigeration unit is installed inside the water storage tank; A cooling box is installed above the water storage tank. The cooling box is equipped with cooling pipes inside and has an air inlet and an air outlet. A water pump device is installed on the outer wall of the water storage tank and the water pump device is connected to the interior of the water storage tank and the cooling pipe; An auxiliary cooling box is installed on the working base plate. The auxiliary cooling box is equipped with a circulation pipe inside, and the two ends of the circulation pipe are respectively connected to the cooling pipe and the interior of the water storage tank.

2. The steam turbine water spray temperature control device for thermal power plants according to claim 1, characterized in that, The water pump device includes a working pump and a connecting pipe. The two ends of the connecting pipe are respectively connected to the working pump and the cooling pipe. The working pump is connected to the inside of the water storage tank to draw cold water from the water storage tank to the cooling pipe.

3. The steam turbine water spray temperature control device for thermal power plants according to claim 1, characterized in that, The cooling box has an air inlet equipped with a control valve, an air outlet equipped with an air outlet pipe, and a number of exhaust pipes on the side wall of the air outlet pipe.

4. The steam turbine water spray temperature control device for thermal power plants according to claim 1, characterized in that, The auxiliary cooling box is equipped with a multi-row fan assembly, which is used to dissipate heat from the circulation pipe.

5. The steam turbine water spray temperature control device for thermal power plants according to claim 4, characterized in that, The auxiliary cooling box is equipped with a rectangular plate, and the rectangular plate has ventilation blade assemblies. The rectangular plate and the fan assembly are located on both sides of the circulation pipe, respectively.

6. The steam turbine water spray temperature control device for thermal power plants according to claim 5, characterized in that, A protective mesh plate is provided between the fan assembly and the circulation pipe.

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