Power plant waste heat recovery device

Abstract

The utility model discloses a waste heat recovery device for a power plant, which comprises a base vertically arranged on the ground; the recycling box is horizontally arranged on the base, and an air inlet and an air outlet are formed in the two ends of the recycling box respectively; the heat exchangers are vertically arranged in the recycling box at intervals, and mounting holes allowing the heat exchangers to penetrate through are formed in the recycling box in a penetrating mode; the baffle is arranged at one end of the heat exchanger and used for abutting against the outer wall of the recycling box; the locking mechanism is arranged on the outer wall of the recycling box and used for fixing the heat exchanger. The heat exchanger has the following advantages and effects that the heat exchangers are grouped, and each group of heat exchangers can be independently disassembled, so that the heat exchangers can be disassembled and cleaned, the cleaning process of the heat exchangers is more convenient, too many impurities are prevented from being attached to the surfaces of the heat exchangers, and the working efficiency of the heat exchangers is ensured.

Description

Technical Field

[0001] This utility model relates to the field of heat energy recovery and utilization, and in particular to a waste heat recovery device for power plants. Background Technology

[0002] Waste heat recovery from power plants is an important measure to improve energy efficiency, reduce energy waste, and mitigate environmental impact. In thermal power generation, only a portion of the heat generated by fuel combustion is used for power generation, while the majority is typically discharged as waste heat through cooling water or chimneys. This underutilized heat is called "waste heat," and effective waste heat recovery can significantly improve the overall energy efficiency of power plants.

[0003] Traditional waste heat recovery devices typically use water-based heat exchangers to absorb waste heat. However, during the emission of high-temperature flue gas, impurities in the flue gas adhere to the surface of the heat exchanger, which affects the efficiency of the heat exchanger after prolonged use. Furthermore, the internal space of the waste heat recovery device is relatively narrow, making the cleaning process of the heat exchanger inconvenient and requiring improvement. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waste heat recovery device for power plants, which has the effect of facilitating the cleaning of heat exchangers.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a waste heat recovery device for power plants, comprising:

[0006] The base is set vertically on the ground;

[0007] The recycling bin is horizontally mounted on the base, and has an air inlet and an air outlet at each end.

[0008] Multiple heat exchangers are vertically and spaced apart inside the recovery tank, and the recovery tank is provided with mounting holes for the heat exchangers to pass through.

[0009] A baffle is provided at one end of the heat exchanger and is used to abut against the outer wall of the recovery tank;

[0010] A locking mechanism is provided on the outer wall of the recycling tank and is used to fix the heat exchanger.

[0011] In a preferred embodiment, the present invention can be further configured such that: the locking mechanism includes a locking block, a plug rod, and a driving member; the locking block is vertically slidably connected to the recycling bin and distributed above and below the heat exchanger; the plug rod is disposed on the locking block; the heat exchanger is provided with a plug hole for the plug rod to be inserted; and the driving member is used to control the relative sliding of a pair of locking blocks.

[0012] In a preferred embodiment, the present invention can be further configured such that: the driving component includes a bidirectional screw and a handwheel, the bidirectional screw is vertically rotatably connected to the recycling bin and threadedly connected to a pair of locking blocks, and the handwheel is disposed on the bidirectional screw.

[0013] In a preferred embodiment, the present invention can be further configured such that: a sealing ring is provided on the inner wall of the mounting hole, and sealing grooves for the sealing ring to be embedded are provided at both ends of the heat exchanger.

[0014] In a preferred embodiment, the present invention can be further configured as follows: the heat exchanger includes a frame, an inlet pipe, an outlet pipe, and multiple sets of heat exchange tubes. The frame is rectangular, the inlet pipe and the outlet pipe are respectively horizontally arranged on one side of the frame, and the heat exchange tubes are serpentine, connecting the inlet pipe and the outlet pipe.

[0015] In a preferred embodiment, the present invention can be further configured such that a pressure plate is provided on the frame to fix the corner position of the heat exchange tube.

[0016] In a preferred embodiment, the present invention can be further configured such that: a hook is provided on the frame, and a hole is provided on the pressure plate for the hook to pass through.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. By setting up grouped heat exchangers and enabling individual disassembly of each group of heat exchangers, the heat exchangers can be disassembled and cleaned, making the cleaning process more convenient, avoiding too many impurities adhering to the surface of the heat exchangers, and ensuring the working efficiency of the heat exchangers.

[0019] 2. By setting up a highly stable heat exchanger, the stability of the heat exchanger during operation is ensured, effectively improving the working efficiency of the heat exchanger. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an embodiment;

[0021] Figure 2 This is a schematic diagram of the connection relationship in the embodiment;

[0022] Figure 3 This is a schematic diagram of the heat exchanger in the embodiment.

[0023] Reference numerals: 1. Base; 2. Recycling bin; 21. Air inlet; 22. Air outlet; 23. Mounting hole; 24. Sealing ring; 25. Sealing groove; 3. Heat exchanger; 31. Frame; 32. Water inlet pipe; 33. Water outlet pipe; 34. Heat exchange tube; 35. Pressure plate; 36. Hook; 37. Locking hole; 4. Baffle; 5. Locking mechanism; 51. Locking block; 52. Insert rod; 53. Insertion hole; 54. Driving component; 55. Double-acting screw; 56. Handwheel. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 , Figure 2 As shown, a waste heat recovery device for power plants includes a base 1, a recovery box 2, multiple heat exchangers 3, a baffle 4, and a locking mechanism 5.

[0026] like Figure 1 , Figure 2 As shown, the base 1 is vertically mounted on the ground, and the recovery box 2 is horizontally mounted on the base 1, with an air inlet 21 and an air outlet 22 at each end. Multiple heat exchangers 3 are vertically and spaced apart inside the recovery box 2, and the recovery box 2 has mounting holes 23 through which the heat exchangers 3 pass.

[0027] like Figure 1 , Figure 2 As shown, the baffle 4 is located at one end of the heat exchanger 3 and is used to abut against the outer wall of the recovery tank 2. The inner wall of the mounting hole 23 is provided with a sealing ring 24, and both ends of the heat exchanger 3 are provided with sealing grooves 25 for the sealing ring 24 to be embedded in, so as to increase the sealing performance during operation.

[0028] like Figure 1 , Figure 2 As shown, the locking mechanism 5 is disposed on the outer wall of the recovery tank 2 and is used to fix the heat exchanger 3. The locking mechanism 5 includes a locking block 51, a plug rod 52, and a driving component 54. The locking block 51 is vertically slidably connected to the recovery tank 2 and is distributed above and below the heat exchanger 3. The plug rod 52 is disposed on the locking block 51, and the heat exchanger 3 is provided with a plug hole 53 for the plug rod 52 to be inserted.

[0029] like Figure 1 , Figure 2 As shown, the drive unit 54 is used to control the relative sliding of a pair of locking blocks 51. The drive unit 54 includes a bidirectional screw 55 and a handwheel 56. The bidirectional screw 55 is vertically rotatably connected to the recycling bin 2 and threadedly connected to a pair of locking blocks 51. The handwheel 56 is disposed on the bidirectional screw 55.

[0030] When it is necessary to clean the heat exchanger 3, the control handwheel 56 drives the bidirectional screw 55 to rotate. The bidirectional screw 55 drives a pair of locking blocks 51 to move away from each other. The locking blocks 51 drive the insertion rod 52 to disengage from the insertion hole 53 on the heat exchanger 3, thereby releasing the lock of the heat exchanger 3. Then, the heat exchanger 3 can be pulled outward to disassemble and clean the heat exchanger 3.

[0031] After cleaning, insert the heat exchanger 3 into the mounting hole 23, and then push the heat exchanger 3 to slide horizontally until the baffle 4 touches the side wall of the recovery box 2. Then, control the handwheel 56 to drive the bidirectional screw 55 to rotate in the opposite direction. The bidirectional screw 55 drives a pair of locking blocks 51 to move closer to each other. The locking blocks 51 drive the insertion rod 52 to insert into the insertion hole 53 on the heat exchanger 3, thereby achieving the locking installation of the heat exchanger 3.

[0032] Therefore, by setting up grouped heat exchangers 3 and enabling individual disassembly of each group of heat exchangers 3, the heat exchangers 3 can be disassembled and cleaned, making the cleaning process of the heat exchangers 3 more convenient, avoiding too many impurities adhering to the surface of the heat exchangers 3, and ensuring the working efficiency of the heat exchangers 3.

[0033] like Figure 2 , Figure 3 As shown, the heat exchanger 3 includes a frame 31, an inlet pipe 32, an outlet pipe 33, and multiple sets of heat exchange tubes 34. The frame 31 is rectangular, the inlet pipe 32 and the outlet pipe 33 are horizontally arranged on one side of the frame 31, and the heat exchange tubes 34 are serpentine, connecting the inlet pipe 32 and the outlet pipe 33.

[0034] like Figure 2 , Figure 3 As shown, the frame 31 is provided with a pressure plate 35 for fixing the corner position of the heat exchange tube 34, and the frame 31 is provided with a hook 36. The pressure plate 35 is provided with a locking hole 37 for the hook 36 to pass through. Therefore, during the installation of the heat exchange tube 34, the heat exchange tube 34 can be locked and fixed, increasing the stability of the heat exchange tube 34 during operation and effectively improving the working efficiency of the heat exchanger 3.

[0035] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A waste heat recovery device for a power plant, characterized by: The utility model provides a heat recovery device, which comprises a base (1) vertically arranged on the ground, a recycling box (2) horizontally arranged on the base (1) and provided with an air inlet (21) and an air outlet (22) at two ends respectively, a plurality of heat exchangers (3) vertically and spacedly arranged in the recycling box (2), the recycling box (2) being provided with mounting holes (23) for the heat exchangers (3) to pass through, a baffle (4) arranged at one end of the heat exchanger (3) and used for abutting against the outer wall of the recycling box (2), and a locking mechanism (5) arranged on the outer wall of the recycling box (2) and used for fixing the heat exchanger (3). The locking mechanism (5) comprises locking blocks (51), insertion rods (52) and driving members (54), the locking blocks (51) are vertically and slidingly connected to the recycling box (2) and are distributed above and below the heat exchangers (3), the insertion rods (52) are arranged on the locking blocks (51), the heat exchangers (3) are provided with insertion holes (53) for the insertion rods (52) to insert, and the driving members (54) are used for controlling the relative sliding of a pair of locking blocks (51). The driving members (54) comprise bidirectional screws (55) and hand wheels (56), the bidirectional screws (55) are vertically and rotationally connected to the recycling box (2) and are threadedly connected to a pair of locking blocks (51), and the hand wheels (56) are arranged on the bidirectional screws (55). The inner wall of the mounting hole (23) is provided with a sealing ring (24), and both ends of the heat exchanger (3) are provided with sealing grooves (25) for the sealing ring (24) to embed. The heat exchanger (3) comprises a frame (31), water inlet pipes (32), water outlet pipes (33) and a plurality of heat exchange pipes (34), the frame (31) is arranged in a rectangular shape, the water inlet pipes (32) and the water outlet pipes (33) are horizontally arranged at one side of the frame (31) respectively, and the heat exchange pipes (34) are connected to the water inlet pipes (32) and the water outlet pipes (33) in a snakelike manner. The frame (31) is provided with pressing sheets (35) for fixing the corner positions of the heat exchange pipes (34).

2. A waste heat recovery device for a power plant according to claim 1, characterized in that: The frame (31) is provided with clamping hooks (36), and the pressing sheets (35) are provided with clamping holes (37) for the clamping hooks (36) to pass through.

3. A waste heat recovery device for a power plant according to claim 2, characterized in that: ​ 4. A waste heat recovery device for a power plant according to claim 1, characterized in that: ​ 5. A waste heat recovery device for a power plant according to claim 1, characterized in that: ​ 6. A waste heat recovery device for a power plant according to claim 5, characterized in that: ​ 7. A waste heat recovery device for a power plant according to claim 6, characterized in that: ​

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