A device for recovering steam from a deaerator discharge

Abstract

The utility model discloses a kind of deaerator outer exhaust steam recovery devices, including base, the top of the base is fixedly connected with water storage tank, the top of the water storage tank is fixedly connected with jar, the top of the jar is fixedly connected with motor, the output end of the motor is rotatably connected with driving rod, the bottom of the driving rod is fixedly connected with first gear, the outside of the first gear is engagedly connected with second gear, the inside of the second gear is fixedly connected with second rotating rod. Through the above structure, some gases in the inside of jar can be adsorbed by the first activated carbon fixed in the inside, and then the valve is opened to let the steam enter the inside of the box along the connecting pipe. In this way, the local temperature difference of the medium can be eliminated by stirring, and the "hot spot" or "cold zone" caused by uneven heating can be avoided, so that the steam heat is more efficiently transferred to the medium, the heating time is shortened, and the functional groups on the surface of activated carbon can remove heavy metals in water through ion exchange or complexation.

Description

Technical Field

[0001] This utility model relates to the field of copper smelting technology, and in particular to a deaerator exhaust steam recovery device. Background Technology

[0002] A deaerator exhaust steam recovery device is a device or system used to recover the steam discharged from the deaerator in a thermal system, along with the heat and working fluid (such as condensate) it carries. Its core function is to collect, cool, and reuse the steam that would otherwise be directly discharged into the atmosphere, thereby improving energy efficiency, reducing working fluid loss, and lowering environmental pollution. In industries such as thermal power generation, chemical engineering, and metallurgy, deaerators are key equipment in thermal systems. Their main function is to remove dissolved oxygen and other gases (such as carbon dioxide) from feedwater by heating, thus preventing equipment corrosion.

[0003] In the prior art, such as patent CN218209529U, a deaerator exhaust steam recovery device is proposed, including a main exhaust steam pipe connected to the deaerator and its tower head. The end of the main exhaust steam pipe is provided with a first branch pipe and a second branch pipe. The first branch pipe is connected to a plate heat exchanger, and the plate heat exchanger is connected to a first steam-water separator. The exhaust port of the first steam-water separator is connected to the second branch pipe. This invention reduces steam emissions, fully recovers and utilizes the heat energy and most of the liquid water in the exhaust steam, improves resource recovery efficiency, and reduces water waste.

[0004] However, uneven water temperature in some units can affect the efficiency of dissolved oxygen release (dissolved oxygen content is negatively correlated with water temperature), resulting in incomplete deoxygenation, causing the oxygen content of the recovered water to exceed the standard, affecting subsequent processes, and causing local high or low temperature zones to form in the steam condensate within the recovery unit. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a deaerator exhaust steam recovery device. This device avoids "hot spots" or "cold spots" caused by uneven heating, enabling more efficient heat transfer from steam to the medium and shortening heating time. The functional groups on the activated carbon surface can remove heavy metals from the water through ion exchange or complexation, increasing the heat transfer coefficient by 30%–50% and reducing steam consumption. Furthermore, if oil, organic matter, or microbial slime adheres to the inner wall of the tank, it can hinder sufficient contact between the gas and liquid phases. Cleaning ensures uniform steam condensation.

[0006] To achieve the above objectives, a deaerator exhaust steam recovery device is provided, comprising a base, a water storage tank fixedly connected to the top of the base, a tank body fixedly connected to the top of the water storage tank, a motor fixedly connected to the top of the tank body, a drive rod rotatably connected to the output end of the motor, a first gear fixedly connected to the bottom of the drive rod, a second gear meshing with the outside of the first gear, a second rotating rod fixedly connected inside the second gear, and multiple stirring rods fixedly connected to the outside of the second rotating rod.

[0007] According to the deaerator exhaust steam recovery device, a first activated carbon is fixedly connected to the outside of the second rotating rod, and a purifier is fixedly connected to the outside of the second rotating rod.

[0008] According to the deaerator exhaust steam recovery device, the top of the water tank is fixedly connected to a water inlet pipe, and a water pump is fixedly connected to the outside of the water inlet pipe.

[0009] According to the deaerator exhaust steam recovery device, one end of the water inlet pipe is rotatably connected to the top of the second rotating rod, and multiple connecting rods are fixedly connected to the outside of the second rotating rod, and an annular water pipe is fixedly connected to the outside of the connecting rods.

[0010] According to the deaerator exhaust steam recovery device, a first discharge pipe is fixedly connected to the outside of the tank, and a first rotating rod is rotatably connected to the top of the first discharge pipe.

[0011] According to the aforementioned deaerator exhaust steam recovery device, the top of the water storage tank is fixedly connected to a port, and the top of the tank body is fixedly connected to a feed inlet.

[0012] According to the aforementioned deaerator exhaust steam recovery device, a connecting pipe is fixedly connected to the outside of the tank, a valve is rotatably connected to the top of the connecting pipe, a box is fixedly connected to one end of the connecting pipe, a fixing block is fixedly connected inside the box, and a third rotating rod is rotatably connected inside the fixing block.

[0013] According to the aforementioned deaerator exhaust steam recovery device, a limiting circular block is rotatably connected to the outside of the third rotating rod, a filter screen is fixedly connected inside the housing, a second activated carbon is fixedly connected inside the housing, a second discharge pipe is fixedly connected to the outside of the housing, and a fourth rotating rod is rotatably connected to the top of the second discharge pipe.

[0014] Beneficial effects:

[0015] 1. Driven by a motor and a drive rod, the first gear at the bottom rotates, which in turn drives the second gear on the outside to rotate. This second gear then drives the second rotating rod inside to rotate, which in turn drives the external stirring rod to rotate, thus heating and stirring the water. Activated carbon is fixed inside the tank to adsorb some gases. Then, the valve is opened to allow steam to enter the tank through the connecting pipe. This stirring eliminates localized temperature differences in the medium, avoiding "hot spots" or "cold spots" caused by uneven heating. This allows for more efficient heat transfer from the steam to the medium, shortening the heating time. The functional groups on the surface of the activated carbon can remove heavy metals from the water through ion exchange or complexation.

[0016] 2. Over time, impurities may accumulate on the inner wall of the tank. Water from the storage tank is pumped through the inlet pipe into the annular water pipe inside the tank, and then sprayed through the nozzle at the bottom to clean the inner wall. During steam condensation, scale or metal oxide deposits may form on the inner wall due to water quality issues. The thermal conductivity of the scale layer is much lower than that of the metal body, resulting in a significant decrease in heat transfer efficiency. Cleaning can restore the smoothness of the inner wall, increasing the heat transfer coefficient by 30%–50%, reducing steam consumption. Furthermore, if oil, organic matter, or microbial slime adheres to the inner wall, it will hinder sufficient contact between the gas and liquid phases. Cleaning ensures a uniform steam condensation process.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a deaerator exhaust steam recovery device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a water pump for a deaerator exhaust steam recovery device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the annular water pipe of the deaerator exhaust steam recovery device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting circular block of a deaerator exhaust steam recovery device proposed in this utility model.

[0023] Legend:

[0024] 1. Base; 2. Water storage tank; 3. Port; 4. Tank body; 5. First discharge pipe; 6. First rotating rod; 7. Connecting pipe; 8. Valve; 9. Box body; 10. Water pump; 11. Water inlet pipe; 12. Feed inlet; 13. Motor; 14. Driving rod; 15. First gear; 16. Second gear; 17. Second rotating rod; 18. Stirring rod; 19. Connecting rod; 20. Annular water pipe; 21. First activated carbon; 22. Purifier; 23. Third rotating rod; 24. Fixed block; 25. Limiting circular block; 26. Filter screen; 27. Second activated carbon; 28. Second discharge pipe; 29. Fourth rotating rod. Detailed implementation manners

[0025] This part will describe the specific embodiments of the present utility model in detail. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0026] Refer to Figure 1-4 , an exhaust steam recovery device for a deaerator according to an embodiment of the present utility model, which includes a base 1. A water storage tank 2 is fixedly connected to the top of the base 1. A tank body 4 is fixedly connected to the top of the water storage tank 2. A motor 13 is fixedly connected to the top of the tank body 4. The output end of the motor 13 is rotationally connected to a driving rod 14. A first gear 15 is fixedly connected to the bottom of the driving rod 14. A second gear 16 is externally meshed with the first gear 15. A second rotating rod 17 is fixedly connected to the inside of the second gear 16. A plurality of stirring rods 18 are fixedly connected to the outside of the second rotating rod 17.

[0027] Specifically: Under the drive of the motor 13, the driving rod 14 is used to drive the first gear 15 at the bottom to rotate. The first gear 15 drives the second gear 16 outside to rotate. Thus, the second gear 16 drives the second rotating rod 17 inside to rotate, so that the second rotating rod 17 drives the stirring rods 18 outside to rotate, heating and stirring the water at the same time.

[0028] A first activated carbon 21 is fixedly connected to the outside of the second rotating rod 17. A purifier 22 is fixedly connected to the outside of the second rotating rod 17.

[0029] A water inlet pipe 11 is fixedly connected to the top of the water storage tank 2. A water pump 10 is fixedly connected to the outside of the water inlet pipe 11.

[0030] Specifically: The water in the water storage tank 2 is pumped by the water pump 10 into the connecting rod 19 inside the tank body 4 along the water inlet pipe 11 and then into the annular water pipe 20 along the connecting rod 19.

[0031] One end of the water inlet pipe 11 is rotatably connected to the top of the second rotating rod 17. Multiple connecting rods 19 are fixedly connected to the outside of the second rotating rod 17, and an annular water pipe 20 is fixedly connected to the outside of the connecting rods 19.

[0032] A first discharge pipe 5 is fixedly connected to the outside of the tank body 4, and a first rotating rod 6 is rotatably connected to the top of the first discharge pipe 5.

[0033] The top of the water storage tank 2 is fixedly connected to a port 3, and the top of the tank body 4 is fixedly connected to a feed inlet 12.

[0034] A connecting pipe 7 is fixedly connected to the outside of the tank body 4. A valve 8 is installed at the top of the connecting pipe 7. A box body 9 is fixedly connected to one end of the connecting pipe 7. A fixing block 24 is fixedly connected inside the box body 9. A third rotating rod 23 is rotatably connected inside the fixing block 24. The outside of the third rotating rod 23 is rotatably connected to the inside of the box body 9.

[0035] The third rotating rod 23 is externally rotatably connected to a limiting round block 25. The outside of the limiting round block 25 is rotatably connected to the inside of the fixed block 24. The inside of the box 9 is fixedly connected to a filter screen 26. The inside of the box 9 is fixedly connected to a second activated carbon 27. The outside of the box 9 is fixedly connected to a second discharge pipe 28. The top of the second discharge pipe 28 is rotatably connected to a fourth rotating rod 29.

[0036] Working principle: Water is poured into the tank 4 through the inlet 12 and then heated. Driven by the motor 13 and the drive rod 14, the first gear 15 at the bottom rotates. The first gear 15 drives the external second gear 16, which in turn drives the internal second rotating rod 17, which in turn drives the external stirring rod 18. This process heats and stirs the water simultaneously. Activated carbon 21 is fixed inside the tank 4 to adsorb some gases. Then, the valve 8 is opened to allow steam to enter the tank 9 through the connecting pipe. This stirring process eliminates localized pollution of the medium. Temperature differences prevent uneven heating that could create "hot spots" or "cold spots," allowing for more efficient heat transfer from the steam to the medium and shortening heating time. The functional groups on the activated carbon surface can remove heavy metals from the water through ion exchange or complexation, meeting stringent environmental or process requirements for water quality. Over time, impurities may accumulate on the inner wall of tank 4. Water from storage tank 2 is pumped through inlet pipe 11 into the annular water pipe 20 inside tank 4, and then cleaned through nozzles at the bottom. During steam condensation, scale or metal oxide deposits may form on the inner wall of tank 4 due to water quality issues. The thermal conductivity of scale is much lower than that of the metal body, leading to a significant decrease in heat transfer efficiency. Cleaning restores the smoothness of the inner wall, increasing the heat transfer coefficient by 30%–50%, reducing steam consumption. Furthermore, oil, organic matter, or microbial slime adhering to the inner wall of the tank can hinder sufficient contact between the gas and liquid phases. Cleaning ensures uniform steam condensation and improves deoxygenation or heat recovery efficiency.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A deaerator exhaust steam recovery device, comprising a base (1), characterized in that: A water storage tank (2) is fixedly connected to the top of the base (1), a tank body (4) is fixedly connected to the top of the water storage tank (2), a motor (13) is fixedly connected to the top of the tank body (4), a drive rod (14) is rotatably connected to the output end of the motor (13), a first gear (15) is fixedly connected to the bottom of the drive rod (14), a second gear (16) is meshed with the outside of the first gear (15), a second rotating rod (17) is fixedly connected inside the second gear (16), and multiple stirring rods (18) are fixedly connected to the outside of the second rotating rod (17).

2. The deaerator exhaust steam recovery device according to claim 1, characterized in that, The second rotating rod (17) is externally fixedly connected to a first activated carbon (21) and an air purifier (22).

3. The deaerator exhaust steam recovery device according to claim 1, characterized in that, The top of the water storage tank (2) is fixedly connected to a water inlet pipe (11), and a water pump (10) is fixedly connected to the outside of the water inlet pipe (11).

4. The deaerator exhaust steam recovery device according to claim 3, characterized in that, One end of the water inlet pipe (11) is rotatably connected to the top of the second rotating rod (17). Multiple connecting rods (19) are fixedly connected to the outside of the second rotating rod (17), and an annular water pipe (20) is fixedly connected to the outside of the connecting rod (19).

5. The deaerator exhaust steam recovery device according to claim 1, characterized in that, The tank body (4) is fixedly connected to the outside of a first discharge pipe (5), and the top of the first discharge pipe (5) is rotatably connected to a first rotating rod (6).

6. The deaerator exhaust steam recovery device according to claim 1, characterized in that, The top of the water storage tank (2) is fixedly connected to a port (3), and the top of the tank body (4) is fixedly connected to a feed inlet (12).

7. The deaerator exhaust steam recovery device according to claim 1, characterized in that, The tank (4) is fixedly connected to the outside of a connecting pipe (7), and a valve (8) is rotatably connected to the top of the connecting pipe (7). One end of the connecting pipe (7) is fixedly connected to a box (9), and a fixing block (24) is fixedly connected inside the box (9). A third rotating rod (23) is rotatably connected inside the fixing block (24).

8. The deaerator exhaust steam recovery device according to claim 7, characterized in that, The third rotating rod (23) is externally rotatably connected to a limiting circular block (25), the inside of the box (9) is fixedly connected to a filter screen (26), the inside of the box (9) is fixedly connected to a second activated carbon (27), the outside of the box (9) is fixedly connected to a second discharge pipe (28), and the top of the second discharge pipe (28) is rotatably connected to a fourth rotating rod (29).

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