Power plant area high temperature condensate water waste heat efficient recycling equipment

Abstract

This utility model relates to the field of high-temperature condensate waste heat recovery and utilization technology, and discloses a high-efficiency waste heat recovery and utilization device for high-temperature condensate waste heat in power plant areas. The device includes a tank, with a water pipe three fixedly connected inside the tank. A water pump one is installed on the outer wall of the tank. The water pipe three is fixedly connected to the output end of the water pump one. A valve one is fixedly connected to the input end of the water pump one, and the valve one is fixedly connected to the water pipe one. A vent pipe one is fixedly connected inside the tank, with a vent pipe two fixedly connected to one end of the vent pipe one, and a heat exchange pipe fixedly connected to one end of the vent pipe two. In this utility model, hot air inside the tank travels through vent pipe one to vent pipe two, and then flows through vent pipe two into a hot air block, preheating the cold water inside the heat exchange pipe. This simultaneously recovers and utilizes the hot air from the high-temperature condensate, thereby improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature condensate waste heat recovery and utilization technology, and in particular to a high-efficiency equipment for the recovery and utilization of high-temperature condensate waste heat in power plant areas. Background Technology

[0002] High-temperature condensate waste heat recovery equipment in power plants is one of the core pieces of equipment for improving the energy utilization rate of power plants. In coal-fired, gas-fired, and nuclear power generation systems, the high-temperature condensate discharged from steam turbines contains a large amount of unused waste heat, and its heat recovery rate directly affects the overall thermal efficiency and economy of the power plant. Traditional technologies mostly focus on the direct recovery of condensate waste heat, but lack a systematic design for the coordinated treatment of accompanying flash steam and water purification processes, resulting in a break in the energy recovery chain. Therefore, it is necessary to develop integrated, high-efficiency condensate waste heat recovery technology to achieve the dual recycling of heat energy and water resources. In existing technologies, high-temperature condensate waste heat recovery in power plants is mainly achieved through shell-and-tube heat exchangers or plate heat exchangers. Condensate is pumped into the heat exchanger by a centrifugal pump and undergoes indirect heat exchange with a low-temperature medium. The cooled condensate is then returned to the boiler system. This type of technology relies on a single heat exchange path, with the heat from the condensate transferred only through the liquid medium. However, the gaseous waste heat generated by flash evaporation is often directly discharged through an exhaust valve. Therefore, a high-efficiency waste heat recovery and utilization device for high-temperature condensate in power plants is proposed to solve the above problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a high-efficiency recovery and utilization device for high-temperature condensate waste heat in power plant areas. It aims to improve the problem that this type of technology relies on a single heat exchange path, and the heat of condensate is transferred only through the liquid medium, while the gaseous waste heat generated by flash evaporation is often directly discharged through the exhaust valve.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency waste heat recovery and utilization device for high-temperature condensate in power plant areas, comprising a tank, a water pipe three fixedly connected inside the tank, a water pump one installed on the outer wall of the tank, the water pipe three fixedly connected to the output end of the water pump one, a valve one fixedly connected to the input end of the water pump one, the valve one fixedly connected to the water pipe one, an air pipe one fixedly connected inside the tank, an air pipe two fixedly connected to one end of the air pipe one, a heat exchange pipe fixedly connected to one end of the air pipe two, and a heating component installed inside the heat exchange pipe; The heating assembly includes a hot air block and a hot water pipe. One side of the outer wall of the hot air block is fixedly connected to the inner wall of the heat exchange pipe. The outer wall of the hot water pipe is fixedly connected to the inside of the heat exchange pipe. A water pipe is fixedly connected inside the heat exchange pipe. A water storage tank is fixedly connected to one end of the water pipe.

[0005] Furthermore, one end of the second ventilation pipe is fixedly connected to the inside of the hot gas block, a second water pump is installed on the outer wall of the tank, and a second valve is fixedly connected to the outer wall of the first water pipe.

[0006] Furthermore, one end of the valve is fixedly connected to the input end of the water pump, and the output end of the water pump is fixedly connected to the water pipe.

[0007] Furthermore, one end of the water pipe is fixedly connected to the inside of the tank, and one end of the water pipe is fixedly connected to a second water pipe.

[0008] Furthermore, a filter pipe is fixedly connected to one end of the water pipe, and a filter pad is fixedly connected inside the filter pipe.

[0009] Furthermore, a filter basket is fixedly connected inside the filter tube, and a magnetic rod is fixedly connected to the inner wall of the filter basket.

[0010] Furthermore, one end of the filter tube is fixedly connected to one end of the heat exchange tube, and a cold water inlet is fixedly connected inside the heat exchange tube. The outer wall of the cold water inlet is fixedly connected to the inside of the hot air block.

[0011] Furthermore, an air outlet is fixedly connected inside the hot gas block, and the outer wall of the air outlet is fixedly connected inside the heat exchange tube.

[0012] This utility model has the following beneficial effects: In this invention, by activating water pump one, high-temperature condensate is pumped into the tank through water pipe three. In the tank, hot air will travel through air pipe one to air pipe two, and then flow through air pipe two into the hot air block, preheating the cold water inside the heat exchange tube. At the same time, the hot air in the high-temperature condensate is recovered and utilized, thereby improving the practicality of the device.

[0013] In this invention, high-temperature condensate is drawn from water pipe four into water pipe one, then flows through water pipe two, and finally enters the filter tube for filtration. The filter pad performs initial filtration of the high-temperature condensate, and the filter basket performs secondary filtration. The magnetic rod inside the filter basket is used to remove metal impurities from the high-temperature condensate, thereby improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the high-efficiency recovery and utilization equipment for high-temperature condensate waste heat in power plants proposed in this utility model. Figure 2 This is a schematic diagram of the heat exchange tube section of the high-temperature condensate waste heat recovery and utilization equipment for power plant areas proposed in this utility model. Figure 3 for Figure 2Enlarged view of point A in the image; Figure 4 for Figure 2 Enlarged view of point B in the image.

[0015] Legend: 1. Tank body; 2. Ventilation pipe 1; 3. Water pipe 1; 4. Valve 1; 5. Water pump 1; 6. Water pump 2; 7. Valve 2; 8. Water pipe 2; 9. Filter pipe; 10. Water storage tank; 11. Cold water inlet; 12. Ventilation pipe 2; 13. Heat exchange pipe; 14. Water pipe 3; 15. Water pipe 4; 16. Filter pad; 17. Filter basket; 18. Magnetic rod; 19. Hot air block; 20. Hot water pipe; 21. Water pipe 5; 22. Vent. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-4 This utility model provides an embodiment of a high-efficiency waste heat recovery and utilization device for high-temperature condensate wastewater in power plants, including a tank 1. The tank 1 serves as the main structure, separating hot air and high-temperature condensate inside. A water pipe 3 14 is fixedly connected inside the tank 1, which guides the water flow and connects other components, providing a basic framework for the entire device. A water pump 5 is installed on the outer wall of the tank 1, which pumps the high-temperature condensate into the tank 1. The water pipe 3 14 is fixedly connected to the output end of the water pump 5, and a valve 4 is fixedly connected to the input end of the water pump 5. A water pipe 3 is fixedly connected to the valve 4. An air pipe 2 is fixedly connected inside the tank 1, which guides the gas and connects other components. An air pipe 2 12 is fixedly connected to one end of the air pipe 2, and a heat exchange pipe 13 is fixedly connected to one end of the air pipe 2. The heat exchange pipe 13 provides space for the hot air and high-temperature condensate to heat cold water, and a heating component is installed inside the heat exchange pipe 13. The heating assembly includes a hot air block 19 and a hot water pipe 20. The outer wall of the hot air block 19 is fixedly connected to the inner wall of the heat exchange tube 13. The hot air block 19 has a space inside to accommodate hot air, which facilitates heating the cold water in the heat exchange tube 13. The outer wall of the hot water pipe 20 is fixedly connected to the inside of the heat exchange tube 13. Filtered high-temperature condensate flows into the hot water pipe 20 to heat the cold water in the heat exchange tube 13. A water pipe 21 is fixedly connected inside the heat exchange tube 13. The water pipe 21 discharges the heated cold water into the water storage tank 10 for convenient storage. One end of the water pipe 21 is fixedly connected to the water storage tank 10. The water storage tank 10 has a space inside to store the heated cold water for subsequent processing. One end of the ventilation pipe 12 is fixedly connected to the inside of the hot air block 19. A water pump 6 is installed on the outer wall of the tank 1. The water pump 6 carries the high-temperature condensate to the water pipe 8 and flows into the filter tube 9. A valve 7 is fixedly connected to the outer wall of the water pipe 3.

[0018] Reference Figures 1-4 One end of valve 27 is fixedly connected to the input end of water pump 26. Water pump 26 has a fixedly connected water pipe 415 at its output end. Water pipe 415 guides the high-temperature condensate and connects to other components. One end of water pipe 415 is fixedly connected inside tank 1. One end of water pipe 13 is fixedly connected to water pipe 28. One end of water pipe 28 is fixedly connected to filter pipe 9. Filter pipe 9 contains multi-layer filtration components for fine filtration of metallic impurities in the high-temperature condensate. Filter pad 16 is fixedly connected inside filter pipe 9 for preliminary filtration. Filter basket 17 is fixedly connected inside filter pipe 9. 7. Secondary filtration of metal impurities in high-temperature condensate: A magnetic rod 18 is fixedly connected to the inner wall of the filter basket 17. The magnetic rod 18 adsorbs the metal impurities in the high-temperature condensate. One end of the filter tube 9 is fixedly connected to one end of the heat exchange tube 13. A cold water inlet 11 is fixedly connected inside the heat exchange tube 13. The cold water inlet 11 guides the cold water to be heated into the heat exchange tube 13. The outer wall of the cold water inlet 11 is fixedly connected to the inside of the hot air block 19. An outlet 22 is fixedly connected inside the hot air block 19. The outlet 22 discharges the cooled hot air, controlling the hot air block 19 to be constantly heated. The outer wall of the outlet 22 is fixedly connected to the inside of the heat exchange tube 13.

[0019] Working Principle: When using the high-temperature condensate waste heat recovery equipment in the power plant area, the high-temperature condensate flows through water pipe 13. Valve 14 is opened, and water pump 15 is activated, drawing the high-temperature condensate into tank 1 through water pipe 3. Inside tank 1, hot air travels through venting pipe 12 to venting pipe 2, then through venting pipe 2 to the hot air block 19, preheating the cold water inside heat exchange tube 13. Finally, the high-temperature condensate in tank 1 is drawn through water pipe 4 15 to the water pipe by water pump 26 and valve 27. The water flows through pipe 13 and then through pipe 28 to filter pipe 9. Filter pad 16 performs initial filtration of the high-temperature condensate, and filter basket 17 performs secondary filtration. Magnetic rod 18 inside filter basket 17 is used to remove metal impurities from the high-temperature condensate. The filtered high-temperature condensate is discharged into hot water pipe 20 to heat the cold water inside heat exchange pipe 13. The cold water flows into heat exchange pipe 13 from cold water inlet 11, and the cooled hot air is discharged through outlet 22. The heated cold water flows into water tank 10 through pipe 5 21 for storage.

[0020] 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 high-efficiency waste heat recovery and utilization device for high-temperature condensate in power plant areas, comprising a tank (1), characterized in that: The tank (1) is fixedly connected to a water pipe three (14) inside. A water pump one (5) is installed on the outer wall of the tank (1). The water pipe three (14) is fixedly connected to the output end of the water pump one (5). A valve one (4) is fixedly connected to the input end of the water pump one (5). A water pipe one (3) is fixedly connected to the valve one (4). A ventilation pipe one (2) is fixedly connected inside the tank (1). A ventilation pipe two (12) is fixedly connected to one end of the ventilation pipe one (2). A heat exchange pipe (13) is fixedly connected to one end of the ventilation pipe two (12). A heating component is installed inside the heat exchange pipe (13). The heating assembly includes a hot air block (19) and a hot water pipe (20). The outer wall of the hot air block (19) is fixedly connected to the inner wall of the heat exchange pipe (13). The outer wall of the hot water pipe (20) is fixedly connected to the inside of the heat exchange pipe (13). A water pipe (21) is fixedly connected inside the heat exchange pipe (13). A water storage tank (10) is fixedly connected to one end of the water pipe (21).

2. The high-efficiency waste heat recovery and utilization equipment for high-temperature condensate in power plant areas according to claim 1, characterized in that: One end of the second ventilation pipe (12) is fixedly connected to the inside of the hot air block (19). The outer wall of the tank (1) is equipped with a second water pump (6). The outer wall of the first water pipe (3) is fixedly connected with a second valve (7).

3. The high-efficiency waste heat recovery and utilization equipment for high-temperature condensate in power plant areas according to claim 2, characterized in that: One end of the valve 2 (7) is fixedly connected to the input end of the water pump 2 (6), and the output end of the water pump 2 (6) is fixedly connected to the water pipe 4 (15).

4. The high-efficiency waste heat recovery and utilization equipment for high-temperature condensate in power plant areas according to claim 3, characterized in that: One end of the water pipe four (15) is fixedly connected to the inside of the tank (1), and one end of the water pipe one (3) is fixedly connected to the water pipe two (8).

5. The high-efficiency waste heat recovery and utilization equipment for high-temperature condensate in power plant areas according to claim 4, characterized in that: One end of the water pipe (8) is fixedly connected to a filter pipe (9), and a filter pad (16) is fixedly connected inside the filter pipe (9).

6. The high-efficiency waste heat recovery and utilization equipment for high-temperature condensate in power plant areas according to claim 5, characterized in that: A filter basket (17) is fixedly connected inside the filter tube (9), and a magnetic rod (18) is fixedly connected to the inner wall of the filter basket (17).

7. The high-efficiency recovery and utilization equipment for high-temperature condensate waste heat in power plant areas according to claim 6, characterized in that: One end of the filter tube (9) is fixedly connected to one end of the heat exchange tube (13), and a cold water inlet (11) is fixedly connected inside the heat exchange tube (13). The outer wall of the cold water inlet (11) is fixedly connected inside the hot air block (19).

8. The high-efficiency waste heat recovery and utilization equipment for high-temperature condensate in power plant areas according to claim 7, characterized in that: The hot air block (19) has an air outlet (22) fixedly connected inside, and the outer wall of the air outlet (22) is fixedly connected inside the heat exchange tube (13).

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