A turbine cold end treatment optimization device

Abstract

This utility model relates to the field of thermal power generation system optimization technology, and discloses a turbine cold-end treatment optimization device, including a treatment box. A preheating box is fixedly connected to the inner wall of the treatment box. A conveying assembly is installed inside the preheating box. A positioning box is fixedly connected to the top of the treatment box. A blower is installed on the inner wall of the positioning box. A heat exchange tube is fixedly connected to the inner wall of the positioning box. The other end of the heat exchange tube is fixedly connected to the outside of the conveying assembly. A collection box is fixedly connected to the inner wall of the treatment box. The conveying assembly includes a collection pipe. In this utility model, water introduced into the heat exchange tube through the water supply pipe is heated and falls into the collection box. It is then introduced into the preheating box through the collection pipe. At this time, the water inside the preheating box is heated. The waste heat recovery unit can improve the structural thermal efficiency by using the exhaust steam waste heat to preheat the condensate.

Description

Technical Field

[0001] This utility model relates to the field of thermal power generation system optimization technology, and in particular to a steam turbine cold end treatment optimization device. Background Technology

[0002] The cold end of a steam turbine consists of a condenser and a cooling system. Its core function is to condense exhaust steam into water and maintain a vacuum, thereby reducing the back pressure of the unit. The optimization of the cold end of the steam turbine is achieved by improving the heat exchange of the condenser, reducing leakage in the vacuum system, and optimizing the cooling path, so as to ensure the economic efficiency and environmental friendliness of power generation.

[0003] Existing turbine cold-end treatment optimization devices mainly include a high-efficiency condenser structure, an intelligent cooling system, and a vacuum optimization module. By using titanium tubes or spiral tubes as heat exchange surfaces, the heat exchange efficiency of the condenser is improved, the exhaust pressure is reduced, air cooling reduces water consumption, and the vacuum system is sealed and linked with the air extraction device to suppress air leakage and maintain low back pressure.

[0004] In existing technologies, the dissipation of steam heat energy during cold-end treatment of steam turbines leads to energy waste, increased fuel costs, and unrecovered waste heat, resulting in low structural efficiency, increased emissions, accelerated equipment aging, and reduced economic and environmental benefits. To address these issues, a steam turbine cold-end treatment optimization device is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a turbine cold end treatment optimization device, which aims to improve the problems of energy waste, increased fuel costs, and decreased structural efficiency caused by the dispersion of steam heat energy and lack of waste heat recovery at the cold end of the turbine in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A turbine cold-end treatment and optimization device includes a treatment box, a preheating box fixedly connected to the inner wall of the treatment box, a conveying assembly installed inside the preheating box, a positioning box fixedly connected to the top of the treatment box, a blower installed on the inner wall of the positioning box, a heat exchange tube fixedly connected to the inner wall of the positioning box, the other end of the heat exchange tube fixedly connected to the outside of the conveying assembly, and a collection box fixedly connected to the inner wall of the treatment box.

[0008] As a further description of the above technical solution:

[0009] The conveying assembly includes a collection pipe, one end of which is fixedly connected to the outside of the preheating box, and the other end of which is fixedly connected to the inner wall of the collection box. A water pump is installed on the outside of the preheating box.

[0010] As a further description of the above technical solution:

[0011] A water delivery pipe is installed on the outside of the water pump, and the other end of the water delivery pipe is fixedly connected to the outside of the heat exchange tube.

[0012] As a further description of the above technical solution:

[0013] A motor is installed on the outside of the treatment box, and a disc is fixedly connected to the drive end of the motor.

[0014] As a further description of the above technical solution:

[0015] A rotating block is fixedly connected to the bottom of the disc, and two fixing blocks are fixedly connected to the inner wall of the treatment box.

[0016] As a further description of the above technical solution:

[0017] A telescopic rod is fixedly connected to one end of each of the two fixed blocks, and a movable rod is fixedly connected to the inner wall of the telescopic rod.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the moving rod is provided with a sliding groove, and the external part of the rotating block is movably connected to the inner wall of the sliding groove.

[0020] As a further description of the above technical solution:

[0021] A filter plate is fixedly connected to the inner wall of the treatment box, and a cleaning rod is fixedly connected to the outside of the moving rod. The cleaning rod is slidably connected to the bottom of the filter plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, water dripping from the outside of the heat exchange tube onto the inner wall of the collection box is collected and introduced into the preheating box through the collection pipe. Water with residual heat and water introduced into the heat exchange tube through the water supply pipe under the action of the water pump are heated and also fall into the collection box, and are introduced into the preheating box through the collection pipe. At this time, the water inside the preheating box is heated. The waste heat recovery unit can improve the structural thermal efficiency and reduce fuel consumption and operating costs by using the waste heat of exhaust steam to preheat the condensate.

[0024] 2. In this utility model, the rotating block slides along the inner wall of the sliding groove, indirectly pushing the position of the moving rod to move. The movement trajectory of the moving rod is restricted by the telescopic rod, so that the moving rod drives the sliding groove to slide and clean along the bottom of the filter plate. Cleaning the condensate filter plate can effectively remove metal particles, impurities and sediments in the water, prevent pipe blockage and improve the flow efficiency of the structure. Attached Figure Description

[0025] Figure 1 This is a perspective view of a steam turbine cold end treatment optimization device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the heat exchange tube structure of a steam turbine cold end treatment optimization device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the moving rod of a turbine cold end treatment optimization device proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Treatment box; 2. Preheating box; 3. Positioning box; 4. Blower; 5. Heat exchange tube; 6. Collection box; 7. Collection pipe; 8. Water supply pipe; 9. Filter plate; 10. Water pump; 11. Motor; 12. Disc; 13. Fixing block; 14. Telescopic rod; 15. Rotating block; 16. Moving rod; 17. Sliding groove; 18. Cleaning rod. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a turbine cold-end treatment optimization device, comprising a treatment box 1, a preheating box 2 fixedly connected to the inner wall of the treatment box 1 for circulating water utilizing waste heat. A conveying assembly is installed inside the preheating box 2, and a positioning box 3 is fixedly connected to the top of the treatment box 1 for fixing the circulation structure. A blower 4 is installed on the inner wall of the positioning box 3 to increase the rising speed of water vapor. A heat exchange tube 5 is fixedly connected to the inner wall of the positioning box 3, and the other end of the heat exchange tube 5 is fixedly connected to the outside of the conveying assembly, which processes the hot air through the heat exchange tube 5. A collection box 6 is fixedly connected to the inner wall of the treatment box 1 for collecting heated condensate and circulating water.

[0033] The conveying assembly includes a collection pipe 7, one end of which is fixedly connected to the outside of the preheating box 2, and the other end of which is fixedly connected to the inner wall of the collection box 6, for recycling the heated water inside the collection box 6 back to the inside of the preheating box 2. A water pump 10 is installed outside the preheating box 2, and a water delivery pipe 8 is installed outside the water pump 10. Starting the water pump 10 can deliver the cooler water inside the preheating box 2 to the heat exchange structure. The other end of the water delivery pipe 8 is fixedly connected to the outside of the heat exchange pipe 5 to deliver the water for heat exchange.

[0034] Reference Figure 1 , Figure 3 and Figure 4 A motor 11 is mounted externally on the treatment box 1, which serves to fix the motor 11 in a fixed position. The motor 11 is mounted externally to prevent it from being damaged by liquid. A disc 12 is fixedly connected to the drive end of the motor 11. When the motor 11 is started, the rotation of the drive end of the motor 11 drives the disc 12 to rotate. A rotating block 15 is fixedly connected to the bottom of the disc 12, and the rotation of the disc 12 causes the rotating block 15 to rotate around the center of the disc 12. Two fixing blocks 13 are fixedly connected to the inner wall of the treatment box 1. A telescopic rod 14 is fixedly connected to the adjacent end of the two fixing blocks 13, thus fixing the position of the telescopic rod 14 to the treatment box 1.

[0035] A movable rod 16 is fixedly connected to the inner wall of the telescopic rod 14, allowing the movable rod 16 to move in position along the telescopic direction of the telescopic rod 14. A sliding groove 17 is formed on the inner wall of the movable rod 16, and the outer side of the rotating block 15 is movably connected to the inner wall of the sliding groove 17, allowing the rotating block 15 to indirectly drive the movable rod 16 to move in position by sliding along the inner wall of the sliding groove 17. A filter plate 9 is fixedly connected to the inner wall of the treatment box 1 for filtering condensate. A cleaning rod 18 is fixedly connected to the outer side of the movable rod 16, and the positional change of the movable rod 16 can drive the positional change of the cleaning rod 18. The outer side of the cleaning rod 18 is slidably connected to the bottom of the filter plate 9, allowing the cleaning rod 18 to move along the bottom of the filter plate 9 during movement.

[0036] Working principle: Starting the blower 4 draws the hot air inside the treatment box 1 to the upper part. The hot air is filtered by the filter plate 9 and then comes into contact with the outside of the heat exchange tube 5. It cools down and drips down the outside of the heat exchange tube 5 to the inner wall of the collection box 6 and is collected. It is then introduced into the preheating box 2 through the collection pipe 7. Water with waste heat and water introduced into the heat exchange tube 5 through the water supply pipe 8 under the action of the water pump 10 are heated and fall into the collection box 6. They are then introduced into the preheating box 2 through the collection pipe 7. At this time, the water inside the preheating box 2 is heated and the condensate is preheated. The waste heat recovery unit can improve the thermal efficiency of the structure, reduce fuel consumption and operating costs by using the waste heat of exhaust steam to preheat the condensate. At the same time, it promotes energy recycling and reduces carbon emissions, achieving both economic and environmental benefits.

[0037] When the motor 11 is started, the rotation of the drive end of the motor 11 drives the disc 12 to rotate. The rotation of the disc 12 drives the rotating block 15 to slide along the inner wall of the sliding groove 17, indirectly pushing the position of the moving rod 16 to move. The movement trajectory of the moving rod 16 is restricted by the telescopic rod 14, so that the moving rod 16 drives the sliding groove 17 to slide and clean along the bottom of the filter plate 9. Cleaning the condensate filter plate 9 can effectively remove metal particles, impurities and sediments in the water, prevent pipeline blockage and improve the flow efficiency of the structure, reduce pump power consumption and energy loss, prevent impurities from entering the downstream equipment, reduce the risk of scale and corrosion of the heat exchanger, ensure the safe and stable operation of the equipment, extend the maintenance cycle, thereby reducing the operation and maintenance cost and improving the overall thermal structure economy.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A turbine cold-end treatment and optimization device, comprising a treatment box (1), characterized in that: The treatment box (1) is fixedly connected to the inner wall of a preheating box (2), and a conveying assembly is installed inside the preheating box (2). The top of the treatment box (1) is fixedly connected to a positioning box (3), and a blower (4) is installed on the inner wall of the positioning box (3). A heat exchange tube (5) is fixedly connected to the inner wall of the positioning box (3), and the other end of the heat exchange tube (5) is fixedly connected to the outside of the conveying assembly. A collection box (6) is fixedly connected to the inner wall of the treatment box (1).

2. The turbine cold-end treatment optimization device according to claim 1, characterized in that: The conveying assembly includes a collection pipe (7), one end of which is fixedly connected to the outside of the preheating box (2), and the other end of which is fixedly connected to the inner wall of the collection box (6). A water pump (10) is installed on the outside of the preheating box (2).

3. The turbine cold-end treatment optimization device according to claim 2, characterized in that: The water pump (10) is equipped with a water delivery pipe (8) on its exterior, and the other end of the water delivery pipe (8) is fixedly connected to the exterior of the heat exchange pipe (5).

4. The turbine cold end treatment optimization device according to claim 1, characterized in that: A motor (11) is installed on the outside of the treatment box (1), and a disc (12) is fixedly connected to the drive end of the motor (11).

5. The turbine cold-end treatment optimization device according to claim 4, characterized in that: A rotating block (15) is fixedly connected to the bottom of the disc (12), and two fixing blocks (13) are fixedly connected to the inner wall of the treatment box (1).

6. The turbine cold-end treatment optimization device according to claim 5, characterized in that: A telescopic rod (14) is fixedly connected to one end of each of the two fixed blocks (13), and a movable rod (16) is fixedly connected to the inner wall of the telescopic rod (14).

7. The turbine cold-end treatment optimization device according to claim 6, characterized in that: The inner wall of the moving rod (16) is provided with a sliding groove (17), and the external part of the rotating block (15) is movably connected to the inner wall of the sliding groove (17).

8. The turbine cold end treatment optimization device according to claim 7, characterized in that: The inner wall of the treatment box (1) is fixedly connected to a filter plate (9), and the outside of the moving rod (16) is fixedly connected to a cleaning rod (18). The outside of the cleaning rod (18) is slidably connected to the bottom of the filter plate (9).

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