Waste heat utilization high-temperature superheater

Abstract

The utility model discloses a waste heat utilization high temperature superheater which comprises a heat exchange bin and a heat insulation cover arranged on the outer side of the heat exchange bin, a mounting plate is arranged at the position, close to the top, of an inner cavity of the heat exchange bin in an attached mode, and the bottom of the mounting plate is fixedly connected with a water distribution box. The first lifting plate can be pushed to ascend and descend through the first electric-hydraulic push rod, the flow dividing pipe is driven to ascend and descend in the inner cavity of the heat exchange cavity, and therefore the water containing amount in the flow dividing pipe and the heat exchange cavity is adjusted, the water containing amount can be effectively adjusted according to the heat supply temperature of the hot air pipe, and the heat exchange rate of the heat exchange bin can be adjusted; and through the arrangement of a second electric-hydraulic push rod, a second lifting plate, a second water pipe, a concentric-square-shaped plate and a sealing ring, the water containing amount of an inner cavity of the heat insulation cover can be adjusted, then the heat exchange rate of the heat insulation cover can be adjusted, and therefore the heat exchange efficiency of the high-temperature superheater can be adjusted while stable heat exchange can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a high-temperature superheater for waste heat utilization. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy in fuel and electric energy. The boiler outputs steam, high-temperature water or organic heat carriers with a certain amount of heat energy. After the boiler is heated, hot air will be discharged. In the prior art, a high-temperature superheater is often used to recover and utilize the waste heat of the boiler.

[0003] After the high-temperature gas is injected into the heat exchange chamber, although it can come into contact with the heat exchange tubes in the heat exchange chamber, the inner wall of the heat exchange chamber will also come into contact with the high-temperature gas, resulting in heat exchange, which will cause the outer wall of the heat exchange chamber to heat up. However, the heat on the outer wall of the heat exchange chamber cannot be recovered and utilized, thus reducing the utilization rate of waste heat recovery. Content of the Utility Model

[0004] One of the purposes of the utility model is realized by adopting the following technical scheme:

[0005] A high-temperature superheater for waste heat utilization includes a heat exchange chamber and a heat insulation cover arranged outside the heat exchange chamber. An installation plate is attached to the inner cavity of the heat exchange chamber near the top, and a water distribution box is fixedly connected to the bottom of the installation plate. A plurality of shunt tubes are inserted and fixed near the left and right sides of the bottom of the water distribution box. Cross plates are fixedly connected to the left and right sides of the inner cavity of the heat exchange chamber near the bottom, and a plurality of heat exchange plates are fixedly connected to the cross plates at equal intervals. Heat exchange cavities adapted to the shunt tubes are opened at the front and rear sides of the tops of the plurality of heat exchange plates, and a diversion groove is commonly opened at the bottom between two adjacent heat exchange cavities. A grid-shaped heat exchange tube communicating with the inner cavity of the heat insulation cover is arranged at the bottom of the heat exchange chamber. A support is fixedly connected to the top of the heat insulation cover, and two first electro-hydraulic push rods distributed left and right are fixedly installed at the bottom of the support. The power ends of the two first electro-hydraulic push rods are fixedly connected to the same first lifting plate, and first water pipes are fixedly penetrated near the left and right sides of the first lifting plate. Two first round holes distributed left and right are opened at the top of the heat insulation cover. Two second round holes distributed left and right are opened at the top of the heat exchange chamber. The bottom ends of the two first water pipes respectively penetrate through the adjacent first round holes, second round holes and the installation plate, and are fixedly communicated with the water distribution box. A water collection box is fixedly connected to the bottom of the heat exchange chamber, and a hot air pipe communicating with the inner cavity of the water collection box is inserted and fixed at the left top of the water collection box. A drain pipe communicating with the inner cavity of the water collection box is inserted and fixed at the right bottom of the water collection box. A water wiping mechanism is arranged in the inner cavity of the water collection box.

[0006] Further, support columns are fixedly connected to the four corners of the bottom of the heat insulation cover, and the bottoms of the four support columns are fixedly connected to the same bottom plate.

[0007] Further, a sealing ring is sleeved on the outer wall of the heat exchange chamber in a fitting manner, and a retaining plate is fixedly connected to the outer ring of the sealing ring. Second water pipes are fixedly penetrated through the left and right sides of the retaining plate. Third circular holes are respectively opened at the left and right sides near the top of the heat insulation cover. The top ends of the second water pipes penetrate through the inner cavities of the third circular holes and are fixedly connected to second lifting plates. Second electro-hydraulic push rods are fixedly installed at the left and right sides of the bottom of the support frame, and the power ends of the second electro-hydraulic push rods are fixedly connected to the tops of the adjacent second lifting plates.

[0008] Further, the water wiping mechanism includes a water absorbent cotton, and the water absorbent cotton is arranged in a fitting manner at the bottom of the inner cavity of the water collecting box near the right side. A connecting plate is fixedly connected to the top of the water absorbent cotton, and linkage telescopic rods are fixedly connected to the front and rear sides near the top of the connecting plate. The top ends of the two linkage telescopic rods are fixedly connected to movable blocks. A threaded hole is opened in the movable block at the front side, and a threaded rod is screwed in the inner cavity of the threaded hole. A servo motor is arranged on the right side of the water collecting box, and a through hole is opened on the right side of the water collecting box. The right end of the threaded rod penetrates through the through hole and is fixedly connected to the power output end of the servo motor. The left end of the threaded rod is rotatably connected to the left side wall of the inner cavity of the water collecting box. A first through hole is opened in the movable block at the rear side, and a cross bar is slidably connected in the inner cavity of the first through hole. The two ends of the cross bar are respectively fixedly connected to the left and right sides of the inner cavity of the water collecting box.

[0009] Further, a water squeezing plate is arranged in a fitting manner on the right side wall of the inner cavity of the water collecting box, and two opening grooves distributed front and rear are opened on the left side of the water squeezing plate. The water squeezing plate is sleeved on the outer sides of the two linkage telescopic rods through the two opening grooves. Two electric telescopic rods distributed front and rear are fixedly installed at the right side near the top of the bottom plate. Second through holes adapted to the power ends of the two electric telescopic rods are opened at the bottom of the water collecting box, and the power ends of the two electric telescopic rods respectively penetrate through the inner cavities of the adjacent second through holes and are fixedly connected to the bottom of the water squeezing plate.

[0010] Further, the length of the water absorbent cotton is the same as the width of the inner cavity of the water collecting box, and the length of the water absorbent cotton is the same as the length of the water squeezing plate.

[0011] Further, the second water pipe is arranged in an L-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. Through the settings of the first electro-hydraulic push rod, the first lifting plate, the first water pipe, the mounting plate, the water distribution box, the shunt pipe, the heat exchange plate, the heat exchange cavity and the diversion groove, the first electro-hydraulic push rod can be used to push the first lifting plate up and down, and drive the shunt pipe to move up and down in the inner cavity of the heat exchange cavity, so as to adjust the water capacity in the shunt pipe and the heat exchange cavity. Furthermore, the water capacity can be effectively adjusted according to the heat supply temperature of the hot gas pipe, and then the heat exchange rate of the heat exchange bin can be adjusted. In addition, through the settings of the second electro-hydraulic push rod, the second lifting plate, the second water pipe, the return plate and the sealing ring, the water capacity in the inner cavity of the heat insulation cover can be regulated, and then the heat exchange rate of the heat insulation cover can be adjusted. Thus, while ensuring stable heat exchange, the heat exchange efficiency of this high-temperature superheater can be adjusted;

[0014] 2. By driving the threaded rod to rotate forward and backward by the servo motor, the movable block can be driven to move left and right reciprocally under the limit of the cross bar, and the connecting plate can be driven to move left and right reciprocally through the linkage telescopic rod. The movement of the connecting plate drives the absorbent cotton to move left and right reciprocally to wipe and adsorb the residual condensed water and water stains at the bottom of the inner cavity of the water collection box, thus avoiding the influence of the heat exchange of the condensed water on the heat exchange effect of the high-temperature superheater. And when the absorbent cotton moves to the right side of the inner cavity of the water collection box, two electric telescopic rods can be started to jointly pull the water squeezing plate downwards, so that the water on the absorbent cotton can be squeezed out, and the condensed water can be quickly discharged through the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of this embodiment;

[0016] Figure 2 is a front view structural schematic diagram of this embodiment;

[0017] Figure 3 is a structural schematic diagram of the water collection box of this embodiment;

[0018] Figure 4 is a structural schematic diagram of the heat exchange plate of this embodiment;

[0019] Figure 5 is a left view cross-sectional view of the heat exchange plate of this embodiment;

[0020] Figure 6 is Figure 2 an enlarged structural view of part A in

[0021] In the figure: 1, heat exchange bin; 2, heat insulation cover; 3, support column; 4, bottom plate; 5, water collection box; 6, hot air pipe; 7, grid-shaped heat exchange pipe; 8, horizontal plate; 9, heat exchange plate; 10, heat exchange cavity; 11, diversion groove; 12, mounting plate; 13, water distribution box; 14, shunt pipe; 15, bracket; 16, first electro-hydraulic push rod; 17, first lifting plate; 18, first water pipe; 19, return-shaped plate; 20, sealing ring; 21, second water pipe; 22, second lifting plate; 23, second electro-hydraulic push rod; 24, drain pipe; 25, absorbent cotton; 26, connecting plate; 27, linkage telescopic rod; 28, movable block; 29, threaded rod; 30, servo motor; 31, cross bar; 32, water squeezing plate; 33, opening groove; 34, electric telescopic rod. Detailed implementation mode

[0022] Please refer to Figures 1 to 6 , the present utility model provides the following technical solutions:

[0023] Embodiment 1:

[0024] A waste heat utilization high-temperature superheater, comprising a heat exchange bin 1 and a heat insulation cover 2 arranged outside the heat exchange bin 1. A mounting plate 12 is attached to the inner cavity of the heat exchange bin 1 near the top, and a water distribution box 13 is fixedly connected to the bottom of the mounting plate 12. A plurality of shunt pipes 14 are inserted and fixed near the left and right sides of the bottom of the water distribution box 13. Horizontal plates 8 are fixedly connected to both the left and right sides of the inner cavity of the heat exchange bin 1 near the bottom, and a plurality of heat exchange plates 9 are fixedly connected equidistantly on the horizontal plates 8. Heat exchange cavities 10 adapted to the shunt pipes 14 are opened at the front and rear sides of the tops of the plurality of heat exchange plates 9, and a diversion groove 11 is commonly opened at the bottom between two adjacent heat exchange cavities 10. A grid-shaped heat exchange pipe 7 communicating with the inner cavity of the heat insulation cover 2 is arranged at the bottom of the heat exchange bin 1. A bracket 15 is fixedly connected to the top of the heat insulation cover 2, and two first electro-hydraulic push rods 16 distributed left and right are fixedly installed at the bottom of the bracket 15. The power ends of the two first electro-hydraulic push rods 16 are fixedly connected to the same first lifting plate 17, and first water pipes 18 are fixedly penetrated near the left and right sides of the first lifting plate 17. Two first circular holes distributed left and right are opened at the top of the heat insulation cover 2, and two second circular holes distributed left and right are opened at the top of the heat exchange bin 1. The bottom ends of the two first water pipes 18 respectively penetrate through the adjacent first circular holes, second circular holes and the mounting plate 12, and are both fixedly communicated with the water distribution box 13. A water collection box 5 is fixedly connected to the bottom of the heat exchange bin 1, and a hot air pipe 6 communicating with its inner cavity is inserted and fixed at the top left side of the water collection box 5. A drain pipe 24 communicating with its inner cavity is inserted and fixed at the bottom right side of the water collection box 5. Support columns 3 are fixedly connected to the four corners of the bottom of the heat insulation cover 2, and the bottom ends of the four support columns 3 are fixedly connected to the same bottom plate 4.

[0025] The outer wall of the heat exchange bin 1 is fitted with a sealing ring 20, and a return plate 19 is fixedly connected to the outer ring of the sealing ring 20. The left and right sides of the return plate 19 are both fixedly penetrated with a second water pipe 21. Third round holes are opened at the top of the heat insulation cover 2 near the left and right sides. The top end of the second water pipe 21 penetrates the inner cavity of the third round hole and is fixedly connected to a second lifting plate 22. The second water pipe 21 is arranged in an L-shaped structure. Second electro-hydraulic push rods 23 are fixedly installed at the left and right sides of the bottom of the support 15, and the power end of the second electro-hydraulic push rod 23 is fixedly connected to the top of the adjacent second lifting plate 22.

[0026] Working principle: When the utility model is in use, hot air is conveyed into the heat exchange bin 1 through the hot air pipe 6, and water can be injected into the inner cavities of the water distribution box 13 and the heat insulation cover 2 through the first water pipe 18 and the second water pipe 21 on one side. The heat exchange plate 9 can be used to exchange heat for the water in the water distribution box 13. In addition, through the arrangement of the grid-shaped heat exchange pipe 7, the water in the inner cavity of the heat insulation cover 2 can be exchanged for heat, and the heat can be recycled through the first water pipe 18 and the second water pipe 21 on the other side. The first electro-hydraulic push rod 16 is used to push the first lifting plate 17 to lift and drive the flow dividing pipe 14 to lift and move in the inner cavity of the heat exchange chamber 10, so as to adjust the water capacity in the flow dividing pipe 14 and the heat exchange chamber 10, and further effectively adjust the water capacity according to the heat supply temperature of the hot air pipe 6, and then adjust the heat exchange rate of the heat exchange bin 1. In addition, the second electro-hydraulic push rod 23 is used to push the second lifting plate 22 to lift and drive the second water pipe 21 to lift. The lifting of the second water pipe 21 can drive the return plate 19 and the sealing ring 20 to lift and move, so as to control the water capacity in the inner cavity of the heat insulation cover 2, and then adjust the heat exchange rate of the heat insulation cover 2, so as to ensure stable heat exchange while adjusting the heat exchange efficiency of the high-temperature superheater.

[0027] Embodiment 2:

[0028] A water wiping mechanism is arranged in the inner cavity of the water collecting box 5. The water wiping mechanism includes a water absorbing cotton 25, and the water absorbing cotton 25 is attached to the bottom of the inner cavity of the water collecting box 5 near the right side. A connecting plate 26 is fixedly connected to the top of the water absorbing cotton 25, and linkage telescopic rods 27 are fixedly connected to the top of the connecting plate 26 near the front and rear sides. The top ends of the two linkage telescopic rods 27 are both fixedly connected to a movable block 28. A threaded hole is opened on the front movable block 28, and a threaded rod 29 is screwed in the inner cavity of the threaded hole. A servo motor 30 is arranged on the right side of the water collecting box 5, and a through hole is opened on the right side of the water collecting box 5. The right end of the threaded rod 29 penetrates the through hole and is fixedly connected to the power output end of the servo motor 30. The left end of the threaded rod 29 is rotatably connected to the left side wall of the inner cavity of the water collecting box 5. A first through hole is opened on the rear movable block 28, and a cross bar 31 is slidably connected in the inner cavity of the first through hole. The two ends of the cross bar 31 are respectively fixedly connected to the left and right sides of the inner cavity of the water collecting box 5.

[0029] The right inner wall of the water collecting box 5 is closely attached with a water squeezing plate 32, and two opening grooves 33 distributed front and back are formed on the left side of the water squeezing plate 32. The water squeezing plate 32 is sleeved on the outer sides of two linkage telescopic rods 27 through the two opening grooves 33. Two electric telescopic rods 34 distributed front and back are fixedly installed at the top of the bottom plate 4 near the right side. Two second through holes adapted to the power ends of the two electric telescopic rods 34 are formed in the bottom of the water collecting box 5. The power ends of the two electric telescopic rods 34 respectively penetrate through the inner cavities of the adjacent second through holes and are fixedly connected to the bottom of the water squeezing plate 32. The length of the water absorbent cotton 25 is the same as the inner cavity width of the water collecting box 5, and the length of the water absorbent cotton 25 is the same as the length of the water squeezing plate 32.

[0030] Working principle: When the utility model is in use, the servo motor 30 is started through an external power supply. The servo motor 30 works to drive the threaded rod 29 to rotate forward and backward, so as to drive the movable block 28 to move left and right reciprocally under the limit of the cross bar 31, and drive the connecting plate 26 to move left and right reciprocally through the linkage telescopic rod 27. The movement of the connecting plate 26 drives the water absorbent cotton 25 to move left and right reciprocally to wipe and adsorb the residual condensed water and water stains at the bottom of the inner cavity of the water collecting box 5, thereby avoiding the influence of the condensed water heat exchange on the heat exchange effect of the high-temperature superheater. And when the water absorbent cotton 25 moves to the right side of the inner cavity of the water collecting box 5, the two electric telescopic rods 34 can be started to jointly pull the water squeezing plate 32 to move downward, so as to squeeze out the water on the water absorbent cotton 25, and the condensed water can be quickly discharged through the drain pipe 24.

Claims

1. A high-temperature superheater for waste heat utilization, comprising a heat exchange chamber (1) and a heat insulation cover (2) arranged outside the heat exchange chamber (1), characterized in that: An installation plate (12) is fitted and arranged close to the top inside the inner cavity of the heat exchange bin (1), and a water distribution box (13) is fixedly connected to the bottom of the installation plate (12). A plurality of shunt pipes (14) are inserted and fixed at the bottom of the water distribution box (13) near the left and right sides. Cross plates (8) are fixedly connected to the left and right sides of the inner cavity of the heat exchange bin (1) near the bottom, and a plurality of heat exchange plates (9) are fixedly connected to the cross plates (8) at equal intervals. Heat exchange cavities (10) adapted to the shunt pipes (14) are formed at the front and rear sides of the tops of the plurality of heat exchange plates (9), and a diversion groove (11) is formed at the bottom between two adjacent heat exchange cavities (10). A grid-shaped heat exchange pipe (7) communicating with the inner cavity of the heat insulation cover (2) is arranged at the bottom of the heat exchange bin (1). A support (15) is fixedly connected to the top of the heat insulation cover (2), and two first electro-hydraulic push rods (16) distributed left and right are fixedly installed at the bottom of the support (15). A same first lifting plate (17) is fixedly connected to the power ends of the two first electro-hydraulic push rods (16), and first water pipes (18) are fixedly penetrated through the first lifting plate (17) near the left and right sides. Two first round holes distributed left and right are formed in the top of the heat insulation cover (2), and two second round holes distributed left and right are formed in the top of the heat exchange bin (1). The bottom ends of the two first water pipes (18) respectively penetrate through the adjacent first round holes, second round holes and the installation plate (12), and are fixedly communicated with the water distribution box (13). A water collection box (5) is fixedly connected to the bottom of the heat exchange bin (1), and a hot air pipe (6) communicating with the inner cavity thereof is inserted and fixed at the top left side of the water collection box (5), and a drain pipe (24) communicating with the inner cavity thereof is inserted and fixed at the bottom right side of the water collection box (5). A water wiping mechanism is arranged in the inner cavity of the water collection box (5).

2. The high-temperature superheater for waste heat utilization according to claim 1, characterized in that: Support columns (3) are fixedly connected to the four corners of the bottom of the heat insulation cover (2), and a same bottom plate (4) is fixedly connected to the bottom ends of the four support columns (3).

3. The high-temperature superheater for waste heat utilization according to claim 1, characterized in that: A sealing ring (20) is sleeved on the outer wall of the heat exchange bin (1) in a fitting manner, and a return plate (19) is fixedly connected to the outer ring of the sealing ring (20). Second water pipes (21) are fixedly penetrated through the left and right sides of the return plate (19). Third round holes are formed in the top of the heat insulation cover (2) near the left and right sides, and the top ends of the second water pipes (21) penetrate through the inner cavities of the third round holes and are fixedly connected to a second lifting plate (22). Second electro-hydraulic push rods (23) are fixedly installed at the left and right sides of the bottom of the support (15), and the power ends of the second electro-hydraulic push rods (23) are fixedly connected to the top of the adjacent second lifting plate (22).

4. The high-temperature superheater for waste heat utilization according to claim 2, wherein: The water wiping mechanism includes a water-absorbing cotton (25), and the water-absorbing cotton (25) is attached to the bottom of the inner cavity of the water collecting box (5) near the right side. A connecting plate (26) is fixedly connected to the top of the water-absorbing cotton (25), and linkage telescopic rods (27) are fixedly connected to both front and rear sides near the top of the connecting plate (26). The tops of the two linkage telescopic rods (27) are fixedly connected with movable blocks (28). A threaded hole is formed in the movable block (28) on the front side, and a threaded rod (29) is screwed in the inner cavity of the threaded hole. A servo motor (30) is arranged on the right side of the water collecting box (5), and a through hole is formed in the right side of the water collecting box (5). The right end of the threaded rod (29) penetrates through the through hole and is fixedly connected to the power output end of the servo motor (30). The left end of the threaded rod (29) is rotatably connected to the left inner wall of the water collecting box (5). A first through hole is formed in the movable block (28) on the rear side, and a cross bar (31) is slidably connected in the inner cavity of the first through hole. The two ends of the cross bar (31) are respectively fixedly connected to the left and right sides of the inner cavity of the water collecting box (5).

5. The high-temperature superheater for waste heat utilization according to claim 4, wherein: A water squeezing plate (32) is attached to the right inner wall of the inner cavity of the water collecting box (5), and two opening grooves (33) distributed front and rear are formed on the left side of the water squeezing plate (32). The water squeezing plate (32) is sleeved outside the two linkage telescopic rods (27) through the two opening grooves (33). Two electric telescopic rods (34) distributed front and rear are fixedly installed on the top of the bottom plate (4) near the right side. Two second through holes adapted to the power ends of the electric telescopic rods (34) are formed in the bottom of the water collecting box (5), and the power ends of the two electric telescopic rods (34) respectively penetrate through the inner cavities of the adjacent second through holes and are fixedly connected to the bottom of the water squeezing plate (32).

6. The high-temperature superheater for waste heat utilization according to claim 5, wherein: The length of the water-absorbing cotton (25) is the same as the width of the inner cavity of the water collecting box (5), and the length of the water-absorbing cotton (25) is the same as the length of the water squeezing plate (32).

7. The high-temperature superheater for waste heat utilization according to claim 3, characterized in that: The second water pipe (21) is arranged in an L-shaped structure.

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