Heat exchanger for waste heat recovery

Abstract

The utility model discloses a heat exchanger for waste heat recovery, which belongs to the field of heat exchangers and comprises a stand column and a fixing plate, the stand column and the fixing plate are both vertically fixed on the ground and are arranged in parallel, an upper connecting beam is arranged above the position between the stand column and the fixing plate, and a lower connecting beam is arranged above the position between the stand column and the fixing plate. A lower connecting beam is arranged below the position between the stand column and the fixing plate, a movable clamping plate is slidably installed between the upper connecting beam and the lower connecting beam and is parallel to the fixing plate, heat exchange plates are evenly installed between the fixing plate and the movable clamping plate, and connecting pipes are symmetrically arranged on the front side of the fixing plate. I-shaped thickening plates are arranged on the surfaces of the sides, away from the heat exchange plates, of the movable clamping plates, the distance between the movable clamping plates and the fixed plates can be controlled through rotation of the double threaded rods, then the heat exchange plates on the inner side are clamped or loosened, the convenience during mounting or dismounting is improved, meanwhile, the movable rods on the two sides can increase the extrusion force of the side faces of the heat exchanger, and the heat exchange efficiency is improved. And the stability and the sealing performance of the equipment are further improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, and more specifically, to a heat exchanger for waste heat recovery. Background Art

[0002] Data center waste heat recovery involves extracting heat from the data center to heat buildings and provide domestic hot water. During the winter heating season, heat pump technology is used to heat surrounding buildings using the data center's waste heat as the primary heat source, achieving energy savings. Existing waste heat recovery systems require plate heat exchangers to achieve heat transfer. Plate heat exchangers are constructed by pressing thin metal sheets into corrugated heat exchange plates, which are then stacked and secured with plywood and bolts. Thin rectangular channels are formed between the plates, through which heat exchange occurs. The working fluid flows through the narrow, tortuous channels formed between the two plates, with the hot and cold fluids passing through the channels in sequence. A separate interlayer separates the fluids, allowing heat exchange to proceed through these plates. Existing plate heat exchangers, however, are often installed using multiple bolts, requiring direct bolt fixation. This is time-consuming and labor-intensive, and disassembly and maintenance are cumbersome, reducing work efficiency. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a heat exchanger for waste heat recovery, which can achieve rapid installation or disassembly and improve the convenience during inspection and maintenance.

[0005] 2. Technical solution

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] A heat exchanger for waste heat recovery, comprising a column and a fixed plate, wherein the column and the fixed plate are both fixed vertically to the ground, and the column and the fixed plate are arranged in parallel, an upper connecting beam is arranged above the column and the fixed plate, and a lower connecting beam is arranged below the column and the fixed plate, a movable clamping plate is slidably installed between the upper connecting beam and the lower connecting beam, the movable clamping plate is parallel to the fixed plate, heat exchange plates are evenly installed between the fixed plate and the movable clamping plate, connecting pipes are symmetrically arranged on the front side of the fixed plate, and the movable clamping plate is away from the heat exchange plate. An I-shaped thickened plate is provided on the side surface, and a docking seat is symmetrically provided on the surface of the I-shaped thickened plate. A double-threaded rod is vertically rotatably installed on the side close to the column between the upper connecting beam and the lower connecting beam. A control wheel is provided on the top of the double-threaded rod, and the control wheel is placed above the upper connecting beam. Moving blocks are symmetrically screwed on the surface of the double-threaded rod, and the two moving blocks are respectively screwed on different threaded surfaces. A connecting rod is hinged between the two moving blocks and the two docking seats, and the fixed plate is symmetrically provided with bosses, and a movable rod is rotatably installed on the outside of the boss.

[0008] Furthermore, a limit plate is symmetrically installed on the surface of the movable clamping plate facing away from the heat exchange plate by bolts, and a docking groove is provided at one end of the upper surface of the two limit plates facing away from each other. The docking groove is suspended on the outside of the movable clamping plate, and the top of the docking groove is open.

[0009] Furthermore, a screw is provided at one end of the movable rod facing away from the fixed plate, and the screw is adapted to the inner dimensions of the docking groove.

[0010] Furthermore, a locking nut is screwed onto the surface of the screw, and the locking nut is placed on the side of the limiting plate away from the fixing plate.

[0011] Furthermore, a mounting hole is provided on the inner surface of the movable rod, and a limit head slides through the inside of the mounting hole. A pull rod is provided at one end of the limit head, and the pull rod passes through the outer surface of the movable rod. A spring is sleeved on the surface of the pull rod, and the spring is placed inside the mounting hole. One end of the spring is in contact with the end surface of the limit head.

[0012] Furthermore, limiting ear plates adapted to the limiting heads are symmetrically arranged above both sides of the fixed plate, the limiting ear plates are placed above the boss, and the surface of one side of the fixed plate close to the heat exchange plate is symmetrically provided with guiding cone surfaces, and the guiding cone surfaces correspond to the limiting ear plates.

[0013] 3. Beneficial effects

[0014] Compared with the existing technology, the advantages of the present invention are: the present invention provides a heat exchanger for waste heat recovery, and the distance between the movable clamping plate and the fixed plate can be controlled by rotating the double-threaded rod, thereby achieving the clamping or loosening of the inner heat exchange plate, thereby improving the convenience during installation or disassembly. At the same time, the movable rods on both sides can increase the extrusion force on the side of the heat exchanger, further improving the stability and sealing of the equipment.

[0015] During disassembly, the movable rod on the side can be rotated upward through the rotating shaft on the front after being loosened and kept vertically fixed. At this time, the side of the heat exchanger is open to facilitate the removal of the inner heat exchange plate, thereby improving the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the mounting ring of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the mounting hole of the present invention;

[0018] Figure 3 For the utility model Figure 1 Schematic diagram of the enlarged structure of area A.

[0019] Explanation of the numbers in the figure: 1. Column; 2. Fixed plate; 21. Connecting pipe; 22. Boss; 23. Guide cone; 24. Limiting ear plate; 3. Upper connecting beam; 4. Lower connecting beam; 5. Movable rod; 51. Mounting hole; 52. Screw; 53. Locking nut; 6. Limiting plate; 61. Docking groove; 7. Limiting head; 71. Pull rod; 8. Spring; 9. Heat exchange plate; 10. Moving splint; 101. I-beam thickening plate; 102. Docking seat; 11. Double-threaded rod; 12. Control wheel; 13. Moving block; 14. Connecting rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example:

[0022] See also Figure 1As shown, a heat exchanger for waste heat recovery includes a column 1 and a fixed plate 2. The column 1 and the fixed plate 2 are both fixed vertically to the ground, and the column 1 and the fixed plate 2 are arranged in parallel. An upper connecting beam 3 is arranged above the column 1 and the fixed plate 2, and a lower connecting beam 4 is arranged below the column 1 and the fixed plate 2 to ensure the stability of the heat exchanger as a whole. A movable splint 10 is slidably installed between the upper connecting beam 3 and the lower connecting beam 4. The movable splint 10 can only slide along the connecting beam to control the distance between it and the fixed plate 2. The movable splint 10 is parallel to the fixed plate 2. Heat exchange plates 9 are evenly installed between the fixed plate 2 and the movable splint 10. The movement of the movable splint 10 can achieve the squeezing or relaxation of multiple inner heat exchange plates 9. Connecting pipes 21 are symmetrically arranged on the front side of the fixed plate 2 to facilitate the docking of external pipelines. The movable splint 10 is provided with an I-shaped thickened plate 101 on the surface of the side facing away from the heat exchange plate 9, and a docking seat 102 is symmetrically provided on the surface of the I-shaped thickened plate 101. A double-threaded rod 11 is vertically rotatably installed on the side close to the column 1 between the upper connecting beam 3 and the lower connecting beam 4. A control wheel 12 is provided on the top of the double-threaded rod 11, which is convenient for rotating and controlling the double-threaded rod 11 through the top. The control wheel 12 is placed above the upper connecting beam 3. Moving blocks 13 are symmetrically screwed on the surface of the double-threaded rod 11. The two moving blocks 13 are screwed on different threaded surfaces respectively. The rotation of the double-threaded rod 11 can control the two moving blocks 13 to separate from or approach each other. A connecting rod 14 is hinged between the two moving blocks 13 and the two docking seats 102. The connection direction of the connecting rod 14 is to ensure that the movable splint 10 can be driven to move when the two moving blocks 13 move.

[0023] Please refer to Figure 1 and Figure 3 As shown, the fixed plate 2 is symmetrically provided with a boss 22, and a movable rod 5 is rotatably installed on the outer side of the boss 22. When in use, the movable rod 5 is set horizontally, and the surface of the movable splint 10 facing away from the heat exchange plate 9 is symmetrically installed with a limit plate 6 by bolts. The limit plate 6 is at the same height as the boss 22. A docking groove 61 is provided at one end of the upper surface of the two limit plates 6 facing away from each other. The docking groove 61 is suspended on the outer side of the movable splint 10, and the top of the docking groove 61 is open. A screw 52 is provided at the end of the movable rod 5 facing away from the fixed plate 2. When installed, the movable rod 5 is rotated to a horizontal state, and enters the interior of the docking groove 61 through the opening at the top, and passes through the limit plate 6. The internal dimensions of the screw 52 and the docking groove 61 are adapted to each other.

[0024] A locking nut 53 is screwed onto the surface of the screw 52 . The locking nut 53 is placed on the side of the limiting plate 6 facing away from the fixed plate 2 . Tightening the locking nut 53 can increase the squeezing force on both sides of the movable splint 10 .

[0025] Please refer to Figure 1 and Figure 2As shown, a mounting hole 51 is provided on the inner surface of the movable rod 5, and a limit head 7 is slidably passed through the inside of the mounting hole 51. A pull rod 71 is provided at one end of the limit head 7, and the pull rod 71 passes through the outer surface of the movable rod 5. The pull rod 71 is a T-shaped structure, so that the limit head 7 can be pulled from the outside. A spring 8 is sleeved on the surface of the pull rod 71, and the spring 8 is placed inside the mounting hole 51. One end of the spring 8 contacts the end surface of the limit head 7. The elastic force of the spring 8 is used to make the limit head 7 always have an outward force, so that when the movable rod 5 is vertical, the limit head 7 can enter the inside of the limit ear plate 24 to achieve fixation.

[0026] Among them, limiting ear plates 24 adapted to the limiting head 7 are symmetrically arranged above both sides of the fixed plate 2 to ensure that the movable rod 5 remains vertically fixed. The limiting ear plates 24 are placed above the boss 22. The surface of the fixed plate 2 on one side close to the heat exchange plate 9 is symmetrically provided with guide cone surfaces 23. The guide cone surfaces 23 and the limiting ear plates 24 correspond to each other. When the movable rod 5 rotates, the limiting head 7 can be squeezed by the guide cone surface 23 to prevent the front fixed plate 2 from obstructing the rotation of the movable rod 5.

[0027] Working principle: Install the column 1 and the fixed plate 2 vertically on the ground, then evenly place the heat exchange plate 9 between the fixed plate 2 and the movable clamping plate 10, and supported by the lower connecting beam 4. Rotate the control wheel 12 to control the rotation of the double-threaded rod 11, and then control the two movable blocks 13 to move closer to or away from each other through different threads. During the movement of the movable block 13, the movable clamping plate 10 can be driven to move horizontally through the cooperation of the connecting rod 14 and the docking seat 102 to squeeze the inner heat exchange plate 9 to ensure sealing. The waste heat recovery work is realized through the connecting pipe 21 and the corresponding pipeline. At the same time, the movable rod 5 is rotated to make it horizontal, so that the screw 52 enters the docking groove 61, and the locking nut 53 is screwed in to increase the extrusion force on both sides to further ensure the sealing. When it needs to be inspected and maintained, the locking nut 53 can be rotated to loosen it, and the movable rod 5 is rotated. When it is in a vertical state, the internal limit head 7 can cooperate with the limit ear plate 24 to maintain a vertical state. At this time, the side of the heat exchange plate 9 is open. At this time, the rotating control wheel 12 controls the movable splint 10 to loosen the heat exchange plate 9, and then the heat exchange plate 9 can be taken out from the side for inspection and maintenance.

[0028] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A heat exchanger for waste heat recovery, comprising a column (1) and a fixing plate (2), characterized in that: The columns (1) and the fixed plate (2) are both fixed vertically on the ground, and the columns (1) and the fixed plate (2) are arranged in parallel. An upper connecting beam (3) is arranged above the columns (1) and the fixed plate (2), and a lower connecting beam (4) is arranged below the columns (1) and the fixed plate (2). A movable clamping plate (10) is slidably installed between the upper connecting beam (3) and the lower connecting beam (4). The movable clamping plate (10) is parallel to the fixed plate (2). A heat exchange plate (9) is evenly installed between the fixed plate (2) and the movable clamping plate (10). A connecting pipe (21) is symmetrically arranged on the front side of the fixed plate (2). An I-shaped thickened plate (101) is arranged on the surface of the movable clamping plate (10) facing away from the heat exchange plate (9). The surface of the I-shaped thickened plate (101) is symmetrically provided with a docking seat (102), a double-threaded rod (11) is vertically rotatably installed on one side close to the column (1) between the upper connecting beam (3) and the lower connecting beam (4), a control wheel (12) is provided on the top of the double-threaded rod (11), and the control wheel (12) is placed above the upper connecting beam (3), and a moving block (13) is symmetrically screwed on the surface of the double-threaded rod (11), and the two moving blocks (13) are respectively screwed on different threaded surfaces, and a connecting rod (14) is hinged between the two moving blocks (13) and the two docking seats (102), and the fixed plate (2) is symmetrically provided with a boss (22), and a movable rod (5) is rotatably installed on the outer side of the boss (22).

2. The waste heat recovery heat exchanger according to claim 1, characterized in that: A limiting plate (6) is symmetrically mounted on the surface of the movable clamping plate (10) facing away from the heat exchange plate (9) through bolts, and a docking groove (61) is provided on one end of the upper surface of the two limiting plates (6) facing away from each other. The docking groove (61) is suspended outside the movable clamping plate (10), and the top of the docking groove (61) is open.

3. The waste heat recovery heat exchanger according to claim 2, characterized in that: A screw rod (52) is provided at one end of the movable rod (5) facing away from the fixed plate (2), and the internal dimensions of the screw rod (52) and the docking groove (61) are adapted to each other.

4. The waste heat recovery heat exchanger according to claim 3, characterized in that: A locking nut (53) is screwed onto the surface of the screw rod (52), and the locking nut (53) is placed on the side of the limiting plate (6) facing away from the fixing plate (2).

5. The waste heat recovery heat exchanger according to claim 4, characterized in that: The inner surface of the movable rod (5) is provided with a mounting hole (51), and the interior of the mounting hole (51) slides through a limit head (7), and one end of the limit head (7) is provided with a pull rod (71), and the pull rod (71) passes through the outer surface of the movable rod (5). A spring (8) is sleeved on the surface of the pull rod (71), and the spring (8) is placed in the mounting hole (51), and one end of the spring (8) contacts the end surface of the limit head (7).

6. The waste heat recovery heat exchanger according to claim 5, characterized in that: Limiting ear plates (24) adapted to the limiting heads (7) are symmetrically arranged above both sides of the fixing plate (2), and the limiting ear plates (24) are placed above the bosses (22). A guide cone surface (23) is symmetrically provided on one side of the fixing plate (2) close to the heat exchange plate (9), and the guide cone surface (23) corresponds to the limiting ear plates (24).

Images