Boiler drain water recovery device capable of assisting in cleaning ash

Abstract

The invention relates to the technical field of thermal power plant boilers, in particular to a boiler drain water recovery device capable of assisting in deashing, which comprises a storage assembly, and a stirring assembly is arranged in the storage assembly; the storage assembly comprises a tank body, a liquid inlet pipe is fixed at the upper end of the tank body, a bottom plate is fixed at the bottom of the tank body, the stirring assembly comprises a stirring motor, the bottom of the stirring motor is connected with an upper bevel gear, the surface of the upper bevel gear is in toothed connection with a middle bevel gear, and the middle bevel gear is in toothed connection with the middle bevel gear. The stirring motor enables the inner stirring rod and the outer stirring rod to rotate reversely through transmission of a gear in the transmission box, the reversely-rotating inner stirring rod and the reversely-rotating outer stirring rod can mix hydrophobic water and a treating agent, the salt content of the hydrophobic water is reduced, and a scraper on the surface of the stirring frame can scrape scale on the surface of the tank body. And meanwhile, the treated hydrophobic water is subjected to bubble removal through the bubble removal assembly, so that subsequent discharge is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power plant boilers, in particular to a boiler drain recovery device capable of assisting in ash cleaning. Background Art

[0002] During the startup of a thermal power plant, the boiler drain expansion tank will recycle water from the boiler cold water wash and the boiler hot water top discharge. When the water quality test is qualified, it will be recycled to the condenser. The recovery temperature of the cold water wash will not be too high, so the condenser temperature will not be high after recycling. As the temperature and pressure of the boiler rise, a large amount of hot water enters the condenser, causing the condenser temperature to rise, which is not conducive to the cold startup of the unit. Therefore, the water balance of the boiler hot water top discharge is often maintained by discharging it to the unit drain tank.

[0003] The existing boiler drain recovery device has a high salt content. No matter where it is discharged, it may cause scaling and corrosion. The impurities and undesirable components inside it will adhere to the inner wall if they are stored in the recovery device for a long time, which is inconvenient for staff to clean, thus affecting work efficiency and work quality. At the same time, during the long-term stirring and fusion treatment process of the existing boiler drain recovery device, bubbles will appear due to the stirring operation of the machine, affecting subsequent treatment. Therefore, a boiler drain recovery device that can assist in cleaning is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a boiler drain recovery device that can assist in cleaning, and its purpose is to solve the problem that the boiler drain has high salt content and is prone to scale formation and adhesion to the pipe wall of the gas outlet equipment. At the same time, the drain will produce bubbles during the stirring process and affect subsequent processing.

[0005] The above technical problem is solved by the following technical solution: The present invention proposes the following technical solution: a boiler drain recovery device capable of assisting ash removal, comprising:

[0006] A storage component, wherein a stirring component is disposed inside the storage component; and

[0007] Defoaming kit for removing foam.

[0008] As a preferred embodiment of the boiler drain recovery device capable of assisting in dust cleaning of the present invention: the storage assembly comprises a tank body, a liquid inlet pipe is fixed to the upper end of the tank body, and a bottom plate is fixed to the bottom of the tank body.

[0009] In a preferred embodiment of the boiler drain recovery device capable of assisting in ash cleaning of the present invention: the stirring assembly comprises a stirring motor, the bottom of the stirring motor is connected with an upper conical tooth, and the surface teeth of the upper conical tooth are connected with a middle conical tooth.

[0010] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: the surface of the middle bevel gear is tooth-connected with a lower bevel gear, and a transmission box is arranged outside the upper bevel gear, the middle bevel gear and the lower bevel gear.

[0011] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: a sleeve is fixed at the bottom of the lower bevel gear, and the inside of the lower bevel gear and the sleeve is hollow.

[0012] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: a middle shaft is fixed at the bottom of the upper bevel gear, and the middle shaft is arranged inside the lower bevel gear and the sleeve.

[0013] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: an inner stirring rod is fixed on the surface of the middle shaft, a stirring frame is fixed on the surface of the sleeve, an outer stirring rod is fixed on the surface of the stirring frame, the inner stirring rod and the outer stirring rod are arranged alternately, and a scraping plate is fixed outside the stirring frame.

[0014] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: the defoaming assembly includes a defoaming box, an inner layer plate is fixed inside the defoaming box, a rotating disk is arranged inside the inner layer plate, the rotating disk is rotatably connected with the defoaming box, a power shaft is fixed at the upper end of the rotating disk, the upper end of the power shaft is connected with the middle shaft, and a liquid outlet pipe is arranged outside the defoaming box.

[0015] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: a limiting frame is fixed on the surface of the bottom plate, and the power shaft is rotatably connected with the limiting frame.

[0016] In a preferred embodiment of the boiler drain water recovery device capable of assisting in ash cleaning according to the present invention: grooves are arranged on the surface of the rotating disk, a lower collision plate is fixed on the inner surface of the inner layer plate, and an upper collision plate is fixed at the bottom of the bottom plate.

[0017] The beneficial effects of the present invention are as follows: the stirring motor drives the inner stirring rod and the outer stirring rod to rotate in opposite directions through the transmission of the gears inside the transmission box. The reversed inner stirring rod and outer stirring rod can mix the drain water and the treatment agent with each other, reducing the salt content of the drain water. The scraping plate on the surface of the stirring frame can scrape off the scale on the surface of the tank body. At the same time, the treated drain water is defoamed by the defoaming assembly, thus facilitating subsequent discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the sectional structure of the tank body in the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the tank body in the present invention.

[0022] Figure 4 It is a schematic diagram of the sectional structure of the transmission box in the present invention.

[0023] Figure 5 It is a schematic diagram of the internal structure of the transmission box in the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the defoaming component in the present invention.

[0025] Figure 7 It is a schematic diagram of the sectional structure of the defoaming box in the present invention.

[0026] Figure 8 It is a schematic diagram of the sectional structure of the inner layer plate in the present invention.

[0027] Figure 9 It is a schematic diagram of the internal structure of the defoaming box in the present invention. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the detailed implementation manners and the accompanying drawings.

[0029] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0030] Example 1, referring to Figures 1 to 9 , this example provides a boiler drain recovery device capable of assisting in ash cleaning, including

[0031] A boiler drain recovery device capable of assisting in ash cleaning, including,

[0032] A storage component 1, in which a stirring component 3 is arranged; and,

[0033] A defoaming component 2 for removing foam.

[0034] Put the hydrophobic substance and the treatment agent into the storage component 1. The stirring component 3 inside the storage component 1 stirs the hydrophobic substance and the treatment agent to ensure complete mixing of the hydrophobic substance and the treatment agent. At the same time, since foam is generated during stirring, the water continues to enter the defoaming component 2, and the defoaming component 2 drives the water to impact on the inner surface, thereby removing the foam in the water. The treated water is discharged to reduce the salt content in the hydrophobic substance, thus facilitating subsequent discharge.

[0035] Furthermore, the storage component 1 includes a tank body 11. A liquid inlet pipe 14 is fixed at the upper end of the tank body 11, and a bottom plate 12 is fixed at the bottom of the tank body 11.

[0036] There is a lower liquid hole in the middle of the bottom plate 12 for connecting the tank body 11 and the defoaming box 21. The water stirred inside the tank body 11 will enter the defoaming box 21 for defoaming. At the same time, the surface of the bottom plate 12 is an inclined surface with a lower middle and higher edges to avoid water accumulation and ensure that the water can directly enter the defoaming box 21.

[0037] The stirring component 3 includes a stirring motor 31. A upper bevel gear 39 is connected to the bottom of the stirring motor 31, and a middle bevel gear 40 is tooth-connected to the surface of the upper bevel gear 39.

[0038] The stirring motor 31 can directly drive the upper bevel gear 39 to rotate. The rotating upper bevel gear 39 drives the middle bevel gear 40 and the lower bevel gear 41 to rotate, thereby driving the middle shaft 33 and the stirring frame 35 to rotate.

[0039] The middle bevel gear 40 is tooth-connected to the surface of the lower bevel gear 41. A transmission box 32 is arranged outside the upper bevel gear 39, the middle bevel gear 40 and the lower bevel gear 41.

[0040] The transmission box 32 is a square box. Openings are arranged on the surface of the transmission box 32 to facilitate the power shaft of the stirring motor 31, the middle shaft 33 and the sleeve 38 to pass through the transmission box 32. At the same time, the middle bevel gear 40 is rotationally connected to the transmission box 32 to ensure the stable transmission between the middle bevel gear 40 and the upper bevel gear 39 and the lower bevel gear 41.

[0041] A sleeve 38 is fixed to the bottom of the lower bevel gear 41, and the inside of the lower bevel gear 41 and the sleeve 38 is hollow.

[0042] A middle shaft 33 is fixed to the bottom of the upper bevel gear 39, and the middle shaft 33 is arranged inside the lower bevel gear 41 and the sleeve 38.

[0043] The hollow space inside the lower bevel gear 41 and the sleeve 38 is used for the middle shaft 33 to pass through. Since both the upper bevel gear 39 and the lower bevel gear 41 are tooth-connected to the middle bevel gear 40, and the upper bevel gear 39 and the lower bevel gear 41 are arranged at both ends of the middle bevel gear 40, the rotation directions of the upper bevel gear 39 and the lower bevel gear 41 are opposite, so that the inner stirring rod 34 on the surface of the middle shaft 33 and the outer stirring rod 36 on the surface of the stirring frame 35 rotate in opposite directions, driving the water to move in different directions, thereby mixing the hydrophobic substance and the treatment agent with each other.

[0044] The surface of the central shaft 33 is fixed with an inner stirring rod 34.

[0045] The inner stirring rod 34 and the outer stirring rod 36 are arranged in an alternating manner, and at the same time, the rotation directions of the inner stirring rod 34 and the outer stirring rod 36 are opposite, so as to increase the agitation of the liquid and make the hydrophobic agent and the treatment agent mix completely.

[0046] Usage process: Pour the boiler hydrophobic into the liquid inlet pipe 14, pour the treatment agent into the inside of the liquid inlet pipe 14, start the stirring motor 31, the stirring motor 31 drives the upper bevel gear 39 to rotate, when the upper bevel gear 39 rotates, it drives the central shaft 33 to rotate, the rotating central shaft 33 drives the inner stirring rod 34 on the surface to rotate, and the rotating inner stirring rod 34 drives the water and the treatment agent to be stirred. After the stirring is completed, the water flows into the defoaming box 21 along the bottom plate 12.

[0047] Example 2, refer to Figures 1 to 9 , this is the second embodiment of the present invention. Different from the previous embodiment, it further includes

[0048] The defoaming assembly 2 includes a defoaming box 21. An inner layer plate 23 is fixed inside the defoaming box 21. A rotating disk 25 is arranged inside the inner layer plate 23. The rotating disk 25 is rotatably connected to the defoaming box 21. A power shaft 24 is fixed at the upper end of the rotating disk 25. The upper end of the power shaft 24 is connected to the central shaft 33. A liquid outlet pipe 22 is arranged outside the defoaming box 21.

[0049] If the power shaft 24 is directly fixedly connected to the central shaft 33, when the central shaft 33 rotates, it drives the power shaft 24 to rotate, thereby driving the rotating disk 25 to rotate. The rotating rotating disk 25 drives the water to impact on the inner surface of the inner layer plate 23, and the bubbles in the water are removed by extrusion.

[0050] A limiting frame 13 is fixed on the surface of the bottom plate 12. The power shaft 24 is rotatably connected to the limiting frame 13.

[0051] The power shaft 24 is limited by the limiting frame 13 to ensure the stable rotation of the power shaft 24. At the same time, the other end of the power shaft 24 is connected to the rotating disk 25, and the bottom of the rotating disk 25 is rotatably connected to the defoaming box 21, so as to ensure the stable rotation of the rotating disk 25.

[0052] Grooves are arranged on the surface of the rotating disk 25. A lower collision plate 26 is fixed on the inner surface of the inner layer plate 23. An upper collision plate 27 is fixed on the bottom of the bottom plate 12.

[0053] By means of the grooves, the lower collision plate 26 and the upper collision plate 27, the flatness of the surfaces of the rotating disk 25, the inner layer plate 23 and the bottom plate 12 is reduced, and the impact force on the water is increased, so as to burst the bubbles.

[0054] Usage process: The central shaft 33 is fixedly connected to the power shaft 24. When the central shaft 33 rotates, it directly drives the power shaft 24 to rotate. The rotating power shaft 24 drives the rotating disk 25 to rotate. The rotating disk 25 rotates inside the defoaming box 21. Water enters from the middle position of the bottom plate 12 and encounters the rotating rotating disk 25. Driven by the rotating disk 25, the water impacts on the surfaces of the inner layer plate 23 and the bottom plate 12. Due to the grooves on the surface of the rotating disk 25, the lower collision plate 26 and the upper collision plate 27, the collision force of the water is increased, thereby eliminating the foam in the water. The water after impact crosses the inner layer plate 23 and is discharged from the liquid outlet pipe 22.

[0055] Example 3, referring to Figures 1 to 9 , which is the third embodiment of the present invention. Different from the previous embodiment, it further includes

[0056] The surface of the sleeve 38 is fixed with a stirring frame 35. The surface of the stirring frame 35 is fixed with an outer stirring rod 36. The inner stirring rod 34 and the outer stirring rod 36 are arranged alternately. The outside of the stirring frame 35 is fixed with a scraper 37.

[0057] The outer stirring rod 36 and the inner stirring rod 34 are arranged alternately, which can stir the hydrophobic back and forth, making the hydrophobic and the treatment agent mix evenly. When the stirring frame 35 rotates, it can also drive the outer scraper 37 to rotate, scraping off the scale on the inner surface of the tank body 11 and ensuring the cleanliness of the inner surface of the tank body 11.

[0058] Usage process: When the upper bevel gear 39 rotates, it drives the middle bevel gear 40 to rotate. The rotation of the middle bevel gear 40 drives the lower bevel gear 41 to rotate. The upper bevel gear 39, the middle bevel gear 40 and the lower bevel gear 41 rotate inside the transmission box 32. When the lower bevel gear 41 rotates, it drives the sleeve 38 to rotate. The rotating sleeve 38 drives the stirring frame 35 to rotate. The rotating stirring frame 35 drives the outer stirring rod 36 to rotate. The outer stirring rod 36 and the inner stirring rod 34 are arranged alternately, which can stir the hydrophobic back and forth, making the hydrophobic and the treatment agent mix evenly. When the stirring frame 35 rotates, it can also drive the outer scraper 37 to rotate, scraping off the scale on the inner surface of the tank body 11 and ensuring the cleanliness of the inner surface of the tank body 11.

[0059] Working principle: Pour the boiler drain water into the liquid inlet pipe 14, pour the treatment agent into the inside of the liquid inlet pipe 14, start the stirring motor 31, the stirring motor 31 drives the upper bevel gear 39 to rotate, when the upper bevel gear 39 rotates, it drives the middle shaft 33 to rotate, the rotating middle shaft 33 drives the inner stirring rod 34 on the surface to rotate, when the upper bevel gear 39 rotates, it drives the middle bevel gear 40 to rotate, the rotation of the middle bevel gear 40 drives the lower bevel gear 41 to rotate, the upper bevel gear 39, the middle bevel gear 40 and the lower bevel gear 41 rotate inside the transmission box 32, when the lower bevel gear 41 rotates, it drives the sleeve 38 to rotate, the rotating sleeve 38 drives the stirring frame 35 to rotate, the rotation of the stirring frame 35 drives the outer stirring rod 36 to rotate, the outer stirring rod 36 and the inner stirring rod 34 are arranged in a staggered manner, which can stir the drain water back and forth, so that the drain water and the treatment agent are evenly mixed. When the stirring frame 35 rotates, it can also drive the scraper 37 on the outside to rotate, scraping off the scale on the inner surface of the tank body 11 to ensure the cleanliness of the inner surface of the tank body 11; the middle shaft 33 is fixedly connected to the power shaft 24, then when the middle shaft 33 rotates, it directly drives the power shaft 24 to rotate, the rotating power shaft 24 drives the rotating disk 25 to rotate, the rotating disk 25 rotates inside the defoaming box 21, water enters from the middle position of the bottom plate 12, encounters the rotating rotating disk 25, and is driven by the rotating disk 25 to impact on the surfaces of the inner layer plate 23 and the bottom plate 12. Due to the grooves on the surface of the rotating disk 25, the lower collision plate 26 and the upper collision plate 27, the collision force of the water is increased, thereby eliminating the foam in the water. The water after impact crosses the inner layer plate 23 and is discharged from the liquid outlet pipe 22.

[0060] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A boiler drain recovery device capable of assisting in ash cleaning, characterized in that: including, a storage component (1) with a stirring component (3) arranged inside; and, a defoaming component (2) for removing foam.

2. The boiler drain recovery device capable of assisting in ash cleaning according to claim 1, wherein: The storage component (1) includes a tank body (11), with a liquid inlet pipe (14) fixed to the upper end of the tank body (11), and a bottom plate (12) fixed to the bottom of the tank body (11).

3. The boiler condensate recovery device capable of assisting in ash cleaning according to claim 2, wherein: The stirring component (3) includes a stirring motor (31), with an upper bevel gear (39) connected to the bottom of the stirring motor (31), and a middle bevel gear (40) meshed with the surface of the upper bevel gear (39).

4. The boiler drain water recovery device capable of assisting in ash cleaning according to claim 3, characterized in that: A lower bevel gear (41) is meshed with the surface of the middle bevel gear (40), and a transmission box (32) is arranged outside the upper bevel gear (39), middle bevel gear (40) and lower bevel gear (41).

5. The boiler drain water recovery device capable of assisting in ash cleaning according to claim 4, characterized in that: A sleeve (38) is fixed to the bottom of the lower bevel gear (41), and the interior of the lower bevel gear (41) and the sleeve (38) is hollow.

6. The boiler drain water recovery device capable of assisting in ash cleaning according to claim 5, wherein: A middle shaft (33) is fixed to the bottom of the upper bevel gear (39), and the middle shaft (33) is arranged inside the lower bevel gear (41) and the sleeve (38).

7. The boiler drain water recovery device capable of assisting in ash cleaning according to claim 6, wherein: Inner stirring rods (34) are fixed to the surface of the middle shaft (33), stirring frames (35) are fixed to the surface of the sleeve (38), outer stirring rods (36) are fixed to the surface of the stirring frames (35), the inner stirring rods (34) and the outer stirring rods (36) are arranged alternately, and scraping plates (37) are fixed to the outside of the stirring frames (35).

8. The boiler drain water recovery device capable of assisting in ash cleaning according to claim 7, wherein: The defoaming component (2) includes a defoaming box (21), with an inner layer plate (23) fixed inside the defoaming box (21), a rotating disk (25) arranged inside the inner layer plate (23), the rotating disk (25) being rotatably connected to the defoaming box (21), a power shaft (24) fixed to the upper end of the rotating disk (25), the upper end of the power shaft (24) being connected to the middle shaft (33), and a liquid outlet pipe (22) arranged outside the defoaming box (21).

9. The boiler drain water recovery device capable of assisting in ash cleaning according to claim 8, characterized in that: A limiting frame (13) is fixed to the surface of the bottom plate (12), and the power shaft (24) is rotatably connected to the limiting frame (13).

10. The boiler drain recovery device capable of assisting in ash cleaning according to claim 9, characterized in that: Grooves are arranged on the surface of the rotating disk (25), a lower collision plate (26) is fixed to the inner surface of the inner layer plate (23), and an upper collision plate (27) is fixed to the bottom of the bottom plate (12).

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