Low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure

Abstract

The utility model relates to low temperature economizer technical field especially relates to corrosion -resistant enamel corrugated board structure's low temperature economizer depth waste heat recovery device, including outer frame, outer frame includes left end cover, the right side of left end cover is provided with right end cover, and the fixed connection of left end cover and right end cover has connecting rod, and the inside of outer frame is provided with enamel corrugated board, and the outside of outer frame is provided with protective baffle, and the surface of protective baffle is provided with fixed sleeve, and the side of protective baffle is provided with splicing groove, and the same limit sleeve is fixedly installed in the inside of left end cover and right end cover, and the outside of left end cover and right end cover all are provided with the insertion slot, and the left side of left end cover and the right side of right end cover all are provided with the same fixed plate, the utility model discloses protective baffle through splicing groove and right end cover, the side of connecting rod is engaged, then the mutual engagement of multiple protective baffles is followed, until the leftmost protective baffle and left end cover engage, realize the quick assembly and positioning of protective baffle.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature economizer technology, and in particular to a deep waste heat recovery device for a low-temperature economizer with a corrosion-resistant enamel corrugated plate structure. Background Technology

[0002] A low-temperature economizer is a device used to improve the thermal efficiency of a boiler system. It is mainly used to recover the waste heat of the flue gas at the tail end of the boiler, reduce the exhaust gas temperature, thereby reducing heat loss and improving the overall efficiency of the system.

[0003] For example, patent number CN119755614A relates to the field of flue gas low-temperature economizer technology, and in particular to a deep waste heat recovery device for a porcelain corrugated plate type low-temperature economizer. The device includes a frame, within which several corrugated plates for heat exchange are arranged. One end of each corrugated plate is connected to an inlet pipe box and an outlet pipe box via an upper end cover. The end of the corrugated plate away from the upper end cover is fixedly connected to a lower end cover. The several corrugated plates are arranged at equal intervals, with gaps between adjacent plates for flue gas flow. Several spacer sleeves are fixedly connected to the frame. This invention, through the corrugated plates installed within the frame, effectively reduces the resistance to flue gas flow, allowing the flue gas to flow smoothly between adjacent plates, and effectively enhances the flue gas flow field.

[0004] However, the protective structure of the existing low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure is relatively complex, making loading and unloading inconvenient and affecting assembly efficiency. Utility Model Content

[0005] To overcome the problem that the protective structure of the low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure is inconvenient to load and unload, thus affecting the assembly efficiency.

[0006] The technical solution of this utility model is as follows: a low-temperature economizer deep waste heat recovery device with a corrosion-resistant enamel corrugated plate structure, including an outer frame, the outer frame including a left end cover, a right end cover provided on the right side of the left end cover, a connecting rod fixedly connected between the left end cover and the right end cover, an enamel corrugated plate provided inside the outer frame, a protective baffle provided on the outside of the outer frame, a fixing sleeve provided on the surface of the protective baffle, a splicing groove provided on the side of the protective baffle, identical limiting sleeves fixedly installed on the inner sides of the left end cover and the right end cover, insertion grooves provided on the outer sides of both the left end cover and the right end cover, identical fixing plates provided on the left side of the left end cover and the right side of the right end cover, and a support plate provided on the inner side of the limiting sleeve.

[0007] Preferably, by setting splicing slots, the protective baffle can be quickly assembled. By setting fixing sleeves, limiting sleeves, and support plates, the protective baffle can be fixed and supported. By setting fixing plates, the splicing slots can be sealed, and the support plates can be limited, so as to achieve stable assembly of the protective baffle and the outer frame.

[0008] Preferably, multiple enamel corrugated plates are provided on the inner side of the outer frame. One end of the enamel corrugated plate is connected to the water inlet pipe box and the water outlet pipe box through the left end cover. The enamel corrugated plate is used for heat exchange.

[0009] Preferably, multiple protective baffles are arranged in a row, with adjacent protective baffles engaging with each other through splicing grooves, the sides of the protective baffles engaging with the sides of the connecting rods through splicing grooves, and the left and right end caps engaging with the protective baffles through splicing grooves.

[0010] Preferably, the fixing sleeve has a U-shaped structure design, the surface of the fixing sleeve and the protective baffle are fixedly connected, the fixing sleeve and the outer side of the support plate are slidably sleeved, and the support plate is used to support and limit the protective baffle.

[0011] Preferably, the two ends of the support plate are slidably connected to the inner side of the limiting sleeve, the insertion groove and the inner side of the limiting sleeve are connected to each other, the inner sides of the support plate and the insertion groove are adapted to each other, and the insertion groove is used for the support plate to pass through.

[0012] Preferably, the fixing plate has a square frame structure design, and fixing bolts are provided on the sides of the fixing plate. The fixing bolts are used to fix the fixing plate to the surface of the left end cover and the right end cover.

[0013] Preferably, the surfaces of the fixing plate and the left and right end caps are tightly fitted together, and the two ends of the support plate abut against the fixing plate, with the fixing plate used to limit the two ends of the support plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure uses a splicing groove to engage the protective baffle with the right end cover and the side of the connecting rod. Then, multiple protective baffles are engaged with each other in sequence until the leftmost protective baffle is engaged with the left end cover, which realizes the rapid assembly and positioning of the protective baffles and improves the assembly efficiency and stability of the device.

[0016] 2. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure has a fixed plate on one side that is fixed to the end cover with bolts. Then, the support plate is inserted into the insertion groove of the other end cover, so that it passes through the limiting sleeve and multiple fixing sleeves and is inserted into the limiting sleeve on the other side. Its end abuts against the fixed plate to support and limit the protective baffle. Finally, the fixed plate on this side is installed and fixed to seal the insertion groove and limit the support plate, while preventing the entry of impurities. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the low-temperature economizer deep waste heat recovery device with a corrosion-resistant enamel corrugated plate structure of this utility model.

[0018] Figure 2 The diagram shown is a three-dimensional representation of the outer frame structure of this utility model. Figure 1 ;

[0019] Figure 3 The diagram shown is a three-dimensional representation of the outer frame structure of this utility model. Figure 2 ;

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the protective baffle of this utility model.

[0021] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the outer frame and protective baffle of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Left end cap; 2. Right end cap; 3. Connecting rod; 4. Protective baffle; 5. Fixing sleeve; 6. Splicing groove; 7. Limiting sleeve; 8. Insertion groove; 9. Fixing plate; 10. Support plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-5 This utility model provides an embodiment of a low-temperature economizer deep waste heat recovery device with a corrosion-resistant enamel corrugated plate structure. The device includes an outer frame, a left end cover 1, a right end cover 2 on the right side of the left end cover 1, a connecting rod 3 fixedly connected between the left end cover 1 and the right end cover 2, an enamel corrugated plate inside the outer frame, a protective baffle 4 on the outer side of the outer frame, a fixing sleeve 5 on the surface of the protective baffle 4, a splicing groove 6 on the side of the protective baffle 4, identical limiting sleeves 7 fixedly installed inside the left end cover 1 and the right end cover 2, insertion grooves 8 on the outer sides of both the left end cover 1 and the right end cover 2, identical fixing plates 9 on the left side of the left end cover 1 and the right side of the right end cover 2, and a support plate 10 inside the limiting sleeve 7. The protective baffle 4 is connected to the right end cover 2 via the splicing groove 6. The side of the connecting rod 3 is engaged, and then multiple protective baffles 4 are engaged with each other in sequence until the leftmost protective baffle 4 is engaged with the left end cover 1. After fixing the fixing plate 9 on one side to the end cover with bolts, the support plate 10 is inserted into the insertion groove 8 of the other end cover, so that it passes through the limiting sleeve 7 and multiple fixing sleeves 5, and is engaged with the limiting sleeve 7 on the other side, and its end abuts against the fixing plate 9 to achieve support and limitation of the protective baffle 4. Finally, the fixing plate 9 on this side is installed and fixed to achieve sealing of the insertion groove 8 and limitation of the support plate 10. The protective baffle 4 is installed on the left side of the right end cover 2, and is engaged with the side of the right end cover 2 and connecting rod 3 through the splicing groove 6. Then multiple protective baffles 4 are engaged with each other in sequence until the leftmost protective baffle 4 is engaged with the left end cover 1 to achieve rapid assembly of the protective baffle 4.

[0025] Please see Figures 1-4 In this embodiment, multiple enamel corrugated plates are arranged inside the outer frame. One end of the enamel corrugated plate is connected to the water inlet pipe box and the drain pipe box through the left end cover 1. The enamel corrugated plate is used for heat exchange. Multiple protective baffles 4 are arranged in a row. Adjacent protective baffles 4 are engaged with each other through splicing grooves 6. The sides of the protective baffles 4 and the sides of the connecting rods 3 are engaged with each other through splicing grooves 6. The left end cover 1 and the right end cover 2 are both engaged with the protective baffles 4 through splicing grooves 6, fixing one side. After plate 9 is fixed to the end cover with bolts, support plate 10 is inserted into the insertion groove 8 of the other end cover, so that it passes through the limiting sleeve 7 and multiple fixing sleeves 5, and is inserted into the limiting sleeve 7 on the other side, and its end abuts against the fixing plate 9 to achieve support and limit of the protective baffle 4. Finally, the fixing plate 9 on this side is installed and fixed to achieve the sealing of the insertion groove 8 and the limit of the support plate 10, so as to achieve rapid assembly of the device and effectively avoid damage to the internal enamel corrugated plate caused by external impact.

[0026] Please see Figures 2-5 In this embodiment, the fixing sleeve 5 has a U-shaped structure design. The surface of the fixing sleeve 5 and the protective baffle 4 are fixedly connected. The fixing sleeve 5 and the outer side of the support plate 10 are slidably sleeved. The support plate 10 is used to support and limit the protective baffle 4. The two ends of the support plate 10 are slidably sleeved with the inner side of the limiting sleeve 7. The insertion groove 8 and the inner side of the limiting sleeve 7 are interconnected. The inner sides of the support plate 10 and the insertion groove 8 are mutually adapted. The insertion groove 8 is used for the support plate 10 to pass through. The fixing plate 9 has a square frame structure design. The side of the fixing plate 9 is provided with fixing bolts. The fixing bolts are used to fix the fixing plate 9 to the surface of the left end cover 1 and the right end cover 2. The surface of the fixing plate 9 and the left end cover 1 and the right end cover 2 are tightly fitted. The two ends of the support plate 10 abut against the fixing plate 9. The fixing plate 9 is used to limit the two ends of the support plate 10.

[0027] During operation, the protective baffle 4 is installed on the left side of the right end cover 2. It engages with the right end cover 2 and the side of the connecting rod 3 through the splicing groove 6. Then, multiple protective baffles 4 are sequentially engaged with each other until the leftmost protective baffle 4 engages with the left end cover 1. After fixing the fixing plate 9 on one side to the end cover with bolts, the support plate 10 is inserted into the insertion groove 8 of the other end cover, so that it passes through the limiting sleeve 7 and multiple fixing sleeves 5, and engages with the limiting sleeve 7 on the other side. Its end abuts against the fixing plate 9 to support and limit the protective baffle 4. Finally, the fixing plate 9 on this side is installed and fixed to seal the insertion groove 8 and limit the support plate 10, thus achieving rapid assembly of the device.

[0028] Through the above steps, the protective baffle 4 is engaged with the right end cover 2 and the side of the connecting rod 3 through the splicing groove 6. Then, multiple protective baffles 4 are engaged with each other in sequence until the leftmost protective baffle 4 is engaged with the left end cover 1. After fixing the fixing plate 9 on one side to the end cover with bolts, the support plate 10 is inserted into the insertion groove 8 of the other end cover, so that it passes through the limiting sleeve 7 and multiple fixing sleeves 5, and is engaged with the limiting sleeve 7 on the other side, and its end abuts against the fixing plate 9 to achieve support and limitation of the protective baffle 4. Finally, the fixing plate 9 on this side is installed and fixed to achieve the sealing of the insertion groove 8 and the limitation of the support plate 10, so as to solve the problem that the protective structure of the low temperature economizer deep waste heat recovery device with corrosion enamel corrugated plate structure is relatively inconvenient to install and remove, which affects the assembly efficiency.

Claims

1. A low-temperature economizer deep waste heat recovery device with a corrosion-resistant enamel corrugated plate structure, comprising an outer frame, characterized in that: The outer frame includes a left end cover (1), a right end cover (2) is provided on the right side of the left end cover (1), a connecting rod (3) is fixedly connected between the left end cover (1) and the right end cover (2), an enamel corrugated plate is provided inside the outer frame, a protective baffle (4) is provided on the outside of the outer frame, a fixing sleeve (5) is provided on the surface of the protective baffle (4), a splicing groove (6) is provided on the side of the protective baffle (4), the same limiting sleeve (7) is fixedly installed on the inside of the left end cover (1) and the right end cover (2), a plug-in groove (8) is provided on the outside of the left end cover (1) and the right end cover (2), the same fixing plate (9) is provided on the left side of the left end cover (1) and the right side of the right end cover (2), and a support plate (10) is provided on the inside of the limiting sleeve (7).

2. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure according to claim 1, characterized in that: Multiple enamel corrugated plates are located on the inner side of the outer frame. One end of the enamel corrugated plate is connected to the water inlet pipe box and the drain pipe box through the left end cover (1). The enamel corrugated plate is used for heat exchange.

3. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure according to claim 1, characterized in that: Multiple protective baffles (4) are arranged in a row. Adjacent protective baffles (4) are engaged with each other through splicing grooves (6). The sides of the protective baffles (4) and the sides of the connecting rods (3) are engaged with each other through splicing grooves (6). The left end cap (1) and the right end cap (2) are engaged with the protective baffles (4) through splicing grooves (6).

4. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure according to claim 1, characterized in that: The fixing sleeve (5) is designed in a U-shape. The surface of the fixing sleeve (5) and the protective baffle (4) are fixedly connected. The fixing sleeve (5) and the outer side of the support plate (10) are slidably connected. The support plate (10) is used to support and limit the protective baffle (4).

5. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure according to claim 1, characterized in that: The two ends of the support plate (10) and the inner side of the limiting sleeve (7) are slidably connected. The inner side of the insertion groove (8) and the limiting sleeve (7) are connected to each other. The inner side of the support plate (10) and the insertion groove (8) are adapted to each other. The insertion groove (8) is used for the support plate (10) to pass through.

6. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure according to claim 1, characterized in that: The fixing plate (9) has a square frame structure design. Fixing bolts are provided on the sides of the fixing plate (9). The fixing bolts are used to fix the fixing plate (9) to the surface of the left end cover (1) and the right end cover (2).

7. The low-temperature economizer deep waste heat recovery device with corrosion-resistant enamel corrugated plate structure according to claim 1, characterized in that: The surfaces of the fixing plate (9) and the left end cover (1) and the right end cover (2) are tightly fitted together. The two ends of the support plate (10) abut against the fixing plate (9). The fixing plate (9) is used to limit the two ends of the support plate (10).

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