A heating energy-saving structure for boiler blowdown

Abstract

This utility model discloses a heating and energy-saving structure for boiler blowdown, relating to the field of energy-saving structure technology. It includes an insulated tank and a heat exchanger. The inner wall of the heat exchanger is equipped with a water supply coil. A discharge pipe is connected below the flow-concentrating hood. A slide frame is slidably connected to the inner wall of the slide rail. A scraper and a brush are connected below the mounting plate. A pull rod is connected to one side of the slide frame, and the outer surface of the pull rod is slidably connected to the inner wall of the heat exchanger. A cover plate is detachably installed on one side of the sealing cover. This utility model has a reasonable design structure. Through the cooperation between the pull rod, brush, and scraper, pulling the pull rod provides power for the movement of the brush and scraper. Simultaneously, the scraper and brush move, cleaning away the dirt deposited at the bottom of the heat exchanger, thus achieving the purpose of cleaning the heat exchanger, solving the problem of dirt accumulation at the bottom of the heat exchanger, and improving the cleanliness of the inside of the heat exchanger.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving structure technology, specifically a heating energy-saving structure for boiler blowdown. Background Technology

[0002] A boiler heats water to boiling point by burning fuels (such as coal, oil, and gas), generating steam. This steam then powers a turbine or other equipment. Boilers are also used to heat hot water to meet heating and domestic hot water needs. Hot water boilers circulate hot water in insulated tanks via hot water circulation pumps for bathing purposes, or circulate hot water in heating pipes for indoor heating. Steam also provides essential power for various industrial equipment and systems. In industries such as papermaking, food processing, chemicals, and rubber, steam is used for processes like cooking, drying, sterilization, and reactions. In some industrial production, such as automobile manufacturing and machining, steam boilers drive various mechanical devices to automate and mechanize production processes.

[0003] After prolonged use, calcium and magnesium ions in the water will form carbonates and sulfates during the heating process, which will adhere to the inner walls of the boiler and pipes, forming scale. During boiler operation, the water is continuously heated and evaporated, and the concentration of impurities and salts in the water will gradually increase. When it reaches a certain level, scale will precipitate and deposit inside the boiler. It is necessary to regularly drain the scale from the inside of the boiler to maintain its cleanliness. The water inside the boiler is at a high temperature, and directly draining the water when cleaning the scale would be wasteful.

[0004] Most existing energy-saving heating structures recover energy from hot water through boiler blowdown. These structures typically utilize heat exchangers and heat exchange tubes to reuse the high-temperature water. While this method can recover heat from the water, scale inside the heat exchanger may settle at the bottom after the wastewater enters. This scale is difficult to remove from the heat exchanger, leading to scale buildup inside the tank. To address this issue, we provide a boiler blowdown energy-saving heating structure that solves these problems. Utility Model Content

[0005] Technical problems to be solved:

[0006] This utility model proposes a heating energy-saving structure for boiler blowdown. Through the cooperation between the tie rod, brush and scraper, it solves the problem that dirt is not easy to be discharged from the inside of the heat exchange box, causing dirt to accumulate inside the heat exchange box.

[0007] Technical solution:

[0008] To achieve the above objectives, this utility model provides the following technical solution: a heating energy-saving structure for boiler blowdown, comprising an insulation tank and a heat exchange box, wherein a connecting pipe is connected to the outer surface of the insulation tank, the other end of the connecting pipe is connected to the outer surface of the heat exchange box, a water supply coil is provided on the inner wall of the heat exchange box, a flow-concentrating hood is connected to one side of the heat exchange box, and a discharge pipe is connected to the bottom of the flow-concentrating hood;

[0009] The inner wall of the heat exchange box is connected to a slide rail, the inner wall of the slide rail is slidably connected to a carriage, the lower part of the carriage is connected to a mounting plate, and the lower part of the mounting plate is connected to a scraper and a brush.

[0010] A pull rod is connected to one side of the slide, the outer surface of the pull rod is slidably connected to the inner wall of the heat exchange box, and a pull ring is connected to the end of the pull rod located outside the heat exchange box;

[0011] The outer surface of the heat exchange box is connected to a sealing cover, and the pull ring is located inside the sealing cover. A cover plate is detachably installed on one side of the sealing cover.

[0012] Furthermore, a sealing groove is provided on the inner side of the sealing cover, and a sealing gasket is installed inside the sealing groove. The sealing gasket is made of rubber material, and the outer surface of the sealing gasket is in contact with one side of the cover plate.

[0013] Furthermore, the insulation tank and the heat exchange box are connected internally via a connecting pipe, and a booster pump is installed on the outside of the connecting pipe.

[0014] Furthermore, a sludge inlet pipe is installed on the top of the insulated tank, and the sludge inlet pipe is connected to the inside of the insulated tank.

[0015] Furthermore, a cover is installed on the top of the heat exchange box, and support legs are installed on the bottom of the heat exchange box.

[0016] Furthermore, a support frame is connected to the outer surface of the water supply coil, and both ends of the support frame are connected to the inner wall of the heat exchange box.

[0017] Furthermore, there are multiple water supply coils, which are arranged at equal intervals. One end of each water supply coil is connected to a water supply pipe, and the other end is connected to a drain pipe.

[0018] Beneficial effects:

[0019] Compared with existing technologies, this heating energy-saving structure for boiler blowdown has the following beneficial effects:

[0020] I. This heating energy-saving structure for boiler blowdown, through the cooperation of the pull rod, brush and scraper, provides power for the movement of the brush and scraper by pulling the pull rod. As the scraper and brush move, the dirt deposited at the bottom of the heat exchanger is swept away, thus achieving the purpose of cleaning the heat exchanger, solving the problem of dirt deposited at the bottom of the heat exchanger and improving the cleanliness of the inside of the heat exchanger.

[0021] II. This heating energy-saving structure for boiler blowdown, through the cooperation between the sealing cover, sealing gasket and cover plate, the sealing cover and cover plate wrap the pull ring and pull rod inside, preventing sewage inside the heat exchange box from leaking to the outside from the pull rod position, and the sealing gasket further increases the sealing between the cover plate and the sealing cover, thus improving the sealing effect of the heat exchange box. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall planar structure of this utility model;

[0025] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the heat exchange box of this utility model;

[0026] Figure 4 This is a schematic diagram of the carriage structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the brush and scraper structure of this utility model;

[0028] Figure 6 This is an exploded structural diagram of the sealing cover, sealing gasket, and cover plate of this utility model.

[0029] In the diagram: 1. Insulated tank; 2. Heat exchanger box; 3. Connecting pipe; 4. Water supply coil; 5. Concentrator; 6. Discharge pipe; 7. Slide rail; 8. Slide frame; 9. Mounting plate; 10. Scraper; 11. Brush; 12. Tie rod; 13. Pull ring; 14. Sealing cover; 15. Cover plate; 16. Sealing groove; 17. Sealing gasket; 18. Booster pump; 19. Sewage inlet pipe; 20. Tank cover; 21. Support leg; 22. Support frame; 23. Water supply pipe; 24. Drain pipe. Detailed Implementation

[0030] 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.

[0031] like Figure 1-6 As shown, this utility model provides a technical solution: a heating and energy-saving structure for boiler blowdown, including an insulation tank 1 and a heat exchange box 2. The outer surface of the insulation tank 1 is connected to a connecting pipe 3, and the other end of the connecting pipe 3 is connected to the outer surface of the heat exchange box 2. The insulation tank 1 has a heat preservation function, and the wastewater is stored in the insulation tank 1. The wastewater is collected inside the heat exchange box 2 to heat the water supply coil 4. The inner wall of the heat exchange box 2 is provided with the water supply coil 4. A flow-concentrating hood 5 is connected to one side of the heat exchange box 2. A discharge pipe 6 is connected below the flow-concentrating hood 5. The flow-concentrating hood 5 gathers the wastewater and dirt to the discharge pipe 6, making it easier to discharge the wastewater and dirt. A valve is installed on the outside of the discharge pipe 6, and the valve controls the opening and closing of the discharge pipe 6.

[0032] The inner wall of the heat exchanger 2 is connected to a slide rail 7, and a carriage 8 is slidably connected to the inner wall of the slide rail 7. A mounting plate 9 is connected to the bottom of the carriage 8, and a scraper 10 and a brush 11 are connected to the bottom of the mounting plate 9. There are two slide rails 7. The two slide rails 7 provide support at both ends of the carriage 8 to maintain the stability of the carriage 8. At the same time, the slide rails 7 provide guidance for the carriage 8 to move. The brush 11 moves to clean the dirt at the bottom of the heat exchanger 2. The scraper 10 scrapes away the dirt behind the brush 11 and scrapes the dirt towards the flow hood 5.

[0033] A pull rod 12 is connected to one side of the slide 8. The outer surface of the pull rod 12 is slidably connected to the inner wall of the heat exchange box 2. A pull ring 13 is connected to the end of the pull rod 12 located outside the heat exchange box 2. The pull ring 13 facilitates the movement of the pull rod 12. When the pull rod 12 moves, it drives the slide 8 to move at the same time. When the slide 8 moves, it drives the scraper 10 and the brush 11 to move at the same time.

[0034] A sealing cover 14 is connected to the outer surface of the heat exchange box 2, and the pull ring 13 is located inside the sealing cover 14. A cover plate 15 is detachably installed on one side of the sealing cover 14. The pull ring 13 and the pull rod 12 are wrapped inside by the sealing cover 14 and the cover plate 15 to prevent the sewage inside the heat exchange box 2 from leaking to the outside.

[0035] A sealing groove 16 is provided on the inner side of the sealing cover 14. A sealing gasket 17 is installed inside the sealing groove 16. The sealing gasket 17 fills the gap between the sealing cover 14 and the cover plate 15, thereby increasing the sealing performance between the sealing cover 14 and the cover plate 15. The sealing gasket 17 is made of rubber, and the outer surface of the sealing gasket 17 is in contact with one side of the cover plate 15. The sealing groove 16 maintains the stability of the sealing gasket 17 and prevents the sealing gasket 17 from being squeezed and deformed, thus losing its sealing function.

[0036] The heat exchange tank 1 and the heat exchange box 2 are connected internally by a connecting pipe 3. A booster pump 18 is installed on the outside of the connecting pipe 3, which provides power to the sewage through the booster plate, so that the sewage can enter the interior of the heat exchange box 2.

[0037] A wastewater inlet pipe 19 is installed on the top of the heat preservation tank 1, and the wastewater inlet pipe 19 is connected to the inside of the heat preservation tank 1. The wastewater inlet pipe 19 is connected to the boiler, and the wastewater inside the boiler is introduced into the heat preservation tank 1.

[0038] A cover 20 is installed on the top of the heat exchange box 2, and support legs 21 are installed on the bottom of the heat exchange box 2. The top of the heat exchange box 2 is closed by the cover 20, and there are multiple support legs 21 to provide support for the heat exchange box 2.

[0039] A support frame 22 is connected to the outer surface of the water supply coil 4. The two ends of the support frame 22 are connected to the inner wall of the heat exchange box 2. The support frame 22 provides support for the water supply coil 4 and maintains the stability of the water supply coil 4.

[0040] There are multiple water supply coils 4, and the multiple water supply coils 4 are arranged at equal distances. One end of the water supply coil 4 is connected to a water supply pipe 23, and the other end of the water supply coil 4 is connected to a drain pipe 24. The multiple water supply coils 4 are connected in series through the water supply pipe 23 and the drain pipe 24. The external water source is input into the water supply coil 4 through the water supply pipe 23, and the heated water inside the water supply coil 4 is discharged through the drain pipe 24.

[0041] Working principle: During operation, wastewater from the boiler is first introduced into the insulation tank 1 through the wastewater inlet pipe 19. Then, the wastewater from the insulation tank 1 is pumped closer to the heat exchanger 2 via the booster pump 18. Simultaneously, external water is supplied to the water supply coil 4 through the water supply pipe 23. After the wastewater heats the water in the water supply coil 4, the wastewater temperature decreases. Then, the discharge pipe 6 is opened to discharge the wastewater from the heat exchanger 2. After the wastewater is discharged through the discharge pipe 6, dirt accumulates at the bottom of the heat exchanger 2. Finally, the cover plate 15 outside the sealing cover 14 is opened, allowing the wastewater to pass through... Pulling the pull ring 13 moves the pull rod 12 to a new position. At the same time, the pull rod 12 moves the slide 8 to a new position. Simultaneously, the slide 8 moves the brush 11 and scraper 10 to a new position via the mounting plate 9. The brush 11 moves to clean away the dirt deposited at the bottom of the heat exchanger 2. Then the scraper 10 scrapes away the cleaned dirt. The brush 11 and scraper 10 move continuously towards the flow hood 5. The dirt that moves to the flow hood 5 is then gathered by the flow hood 5 and directed to the discharge pipe 6. The dirt is then discharged through the discharge pipe 6.

[0042] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A heating energy-saving structure for boiler blowdown, comprising an insulated tank (1) and a heat exchange box (2), characterized in that: The outer surface of the heat exchange tank (1) is connected to a connecting pipe (3), the other end of the connecting pipe (3) is connected to the outer surface of the heat exchange box (2), the inner wall of the heat exchange box (2) is provided with a water supply coil (4), a flow hood (5) is connected to one side of the heat exchange box (2), and a discharge pipe (6) is connected to the bottom of the flow hood (5). The inner wall of the heat exchange box (2) is connected to a slide rail (7), and the inner wall of the slide rail (7) is slidably connected to a slide frame (8). A mounting plate (9) is connected below the slide frame (8), and a scraper (10) and a brush (11) are connected below the mounting plate (9). A pull rod (12) is connected to one side of the slide (8). The outer surface of the pull rod (12) is slidably connected to the inner wall of the heat exchange box (2). A pull ring (13) is connected to one end of the pull rod (12) located outside the heat exchange box (2). The outer surface of the heat exchange box (2) is connected to a sealing cover (14), and the pull ring (13) is located inside the sealing cover (14). A cover plate (15) is detachably installed on one side of the sealing cover (14).

2. The heating energy-saving structure for boiler blowdown according to claim 1, characterized in that: The inner side of the sealing cover (14) is provided with a sealing groove (16), and a sealing gasket (17) is installed inside the sealing groove (16). The sealing gasket (17) is made of rubber material, and the outer surface of the sealing gasket (17) is in contact with one side of the cover plate (15).

3. The heating energy-saving structure for boiler blowdown according to claim 1, characterized in that: The heat exchange tank (1) and the heat exchange box (2) are connected internally by a connecting pipe (3), and a booster pump (18) is installed on the outside of the connecting pipe (3).

4. The heating energy-saving structure for boiler blowdown according to claim 1, characterized in that: A sewage inlet pipe (19) is installed on the top of the heat preservation tank (1), and the sewage inlet pipe (19) is connected to the inside of the heat preservation tank (1).

5. A heating energy-saving structure for boiler blowdown according to claim 1, characterized in that: A cover (20) is installed on the top of the heat exchange box (2), and a support leg (21) is installed on the bottom of the heat exchange box (2).

6. A heating energy-saving structure for boiler blowdown according to claim 1, characterized in that: The water supply coil (4) is connected to a support frame (22) on its outer surface, and the two ends of the support frame (22) are connected to the inner wall of the heat exchange box (2).

7. A heating energy-saving structure for boiler blowdown according to claim 1, characterized in that: There are multiple water supply coils (4), and the multiple water supply coils (4) are arranged at equal distances. One end of the water supply coil (4) is connected to a water supply pipe (23), and the other end of the water supply coil (4) is connected to a drain pipe (24).

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