Multistage heat exchange condensate water waste heat recovery system

Abstract

The utility model relates to the technical field of waste heat recovery, and discloses a multistage heat exchange condensate water waste heat recovery system which comprises a bottom plate, a filter box is fixedly connected to the left side of the top of the bottom plate, a fixing frame is fixedly connected to the front face of the filter box, and a first motor is fixedly installed on the front face of the fixing frame. And the other end of the output shaft of the first motor is fixedly sleeved with a rotating shaft. Through the arrangement of the rotating shaft, the rotating rod, the connecting rod, the clamping plate and the sliding groove, when the first motor starts to operate, the rotating shaft drives the rotating rod to rotate, the connecting rod moves, the clamping plate vertically moves upwards under the limiting action of the sliding groove, the fixing effect on the filter screen is relieved at the moment, and therefore the filter screen can be conveniently fixed. And an operator can take out the filter screen by pulling the sealing ring outwards, so that the purpose of conveniently replacing the filter screen is achieved, the efficiency of replacing the filter screen by the operator is improved, and the labor intensity of the operator is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, and more specifically, to a multi-stage heat exchange condensate waste heat recovery system. Background Technology

[0002] Condensate waste heat recovery refers to the technology of collecting and reusing the heat energy released by steam during the condensation process. Through heat exchangers, the heat in the condensate is transferred to other media, such as preheating boiler feedwater or heating systems, thereby improving energy utilization efficiency and reducing energy consumption. It is widely used in steam-using applications such as power plants and chemical plants and is one of the effective means to achieve energy conservation and consumption reduction.

[0003] During the condensate recovery process, operators often use corresponding waste heat recovery systems to recover waste heat from the condensate. While the existing filter boxes in these systems have basic filtration and purification functions, the filter screens are usually fixed in place. When the filter screens are damaged during the filtration of high-temperature, high-pressure condensate, this fixed installation method makes it inconvenient for operators to quickly replace them. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a multi-stage heat exchange condensate waste heat recovery system, which has the advantage of easy filter replacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage heat exchange condensate waste heat recovery system, comprising a base plate, a filter box fixedly connected to the left side of the top of the base plate, a fixing frame fixedly connected to the front of the filter box, a first motor fixedly mounted on the front of the fixing frame, a rotating shaft fixedly sleeved at the other end of the output shaft of the first motor, the other end of the rotating shaft passing through the fixing frame and the filter box in sequence and extending to the inner cavity of the filter box and fixedly sleeved with a rotating rod, a connecting rod hinged to the bottom end of the rotating rod, a clamping plate hinged to the other end of the connecting rod, a sliding groove provided below the inner cavity of the filter box, the outer surface of the clamping plate movably connected to the inside of the sliding groove, a fixing ring fixedly mounted below the clamping plate in the inner cavity of the filter box, a filter screen movably connected between the clamping plate and the fixing ring, and the outer surface of the filter screen movably connected to the inner surface of the filter box.

[0006] As a preferred embodiment of this utility model, a sealing ring is fixedly connected to the front side of the filter screen, and the outer surface of the sealing ring is movably connected to the inner surface of the filter box.

[0007] As a preferred technical solution of this utility model, a fixing tube is fixedly sleeved inside the back of the filter box, a cover plate is movably connected to the top of the filter box, and locking screws are threadedly sleeved inside the left and right sides of the cover plate. Rectangular blocks are fixedly installed on the top of the left and right sides of the outer surface of the filter box. The bottom end of the locking screw passes through the cover plate and the rectangular block in sequence and extends into the interior of the rectangular block and is threadedly sleeved with the interior of the rectangular block.

[0008] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to both the front and rear sides of the top of the cover plate, a second motor is fixedly connected to the front side of the fixing plate, and a threaded rod is fixedly sleeved on the other end of the output shaft of the second motor.

[0009] As a preferred embodiment of this utility model, the other end of the threaded rod passes through the fixed plate and extends into the interior of the fixed plate, and is threadedly sleeved with a toothed plate. The bottom of the toothed plate is movably connected to the interior of the top of the cover plate. A gear is meshed with the left side of the toothed plate. A rotating rod is fixedly sleeved inside the gear. The bottom end of the rotating rod passes through the cover plate and extends into the inner cavity of the filter box, and is fixedly sleeved with a connecting plate. A scraping plate is fixedly connected to the bottom of the connecting plate. The outer surfaces of the connecting plate and the scraping plate are movably connected to the bottom of the cover plate and the inner surface of the filter box, respectively.

[0010] As a preferred embodiment of this utility model, a water pump is fixedly installed on the top of the base plate, and an installation pipe and a connecting pipe are fixedly installed on the left side and top of the water pump, respectively. The other end of the installation pipe passes through the filter box and extends into the interior of the filter box, and the other end of the connecting pipe is fixedly sleeved with a multi-stage heat exchange box, which is fixedly installed on the right side of the top of the base plate.

[0011] As a preferred technical solution of this utility model, a vertical pipe and an air inlet pipe are fixedly sleeved on the left and right sides of the top of the multi-stage heat exchange box, respectively. The bottom end of the air inlet pipe passes through the multi-stage heat exchange box and extends into the inner cavity of the multi-stage heat exchange box.

[0012] As a preferred embodiment of this utility model, an air inlet pipe is fixedly sleeved on the right side of the multi-stage heat exchange box, and a heat exchange water pipe is fixedly sleeved at the bottom of the inner cavity of the multi-stage heat exchange box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up a rotating shaft, a rotating rod, a connecting rod, a clamping plate, and a sliding groove, will cause the rotating shaft to rotate when the first motor starts running, and the connecting rod to move. This will cause the clamping plate to move vertically upward under the limiting effect of the sliding groove, thus releasing the fixing effect on the filter screen. The operator can then remove the filter screen by pulling the sealing ring outward, achieving the purpose of facilitating filter screen replacement, improving the efficiency of filter screen replacement, and reducing the labor intensity of the operator.

[0015] 2. This utility model, by setting up a toothed plate, gears, a rotating rod, a connecting plate, and a scraping plate, allows the threaded rod to rotate when the second motor starts running. This causes the toothed plate to move horizontally backward under the limiting action of the cover plate, which in turn causes the gears to drive the rotating rod to rotate. Consequently, the connecting plate drives the scraping plate to rotate along the inner surface of the filter box, thus achieving a cleaning effect on the top of the inner surface of the filter box at the bottom of the cover plate. This prevents condensate vapor from accumulating in large quantities at the top of the filter box cavity, which would corrode the surface of the filter box and the cover plate, thereby improving the service life of the filter box and the cover plate, and also improving the collection effect of condensate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the front of the present invention;

[0018] Figure 3 This is a schematic diagram of the top structure of the present invention;

[0019] Figure 4 This is a cross-sectional structural schematic diagram of the first motor of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the scraping plate of this utility model.

[0021] In the diagram: 1. Base plate; 2. Filter box; 3. Fixing frame; 4. First motor; 5. Rotating shaft; 6. Rotating rod; 7. Connecting rod; 8. Clamping plate; 9. Slide groove; 10. Fixing ring; 11. Filter screen; 12. Sealing ring; 13. Fixing pipe; 14. Locking screw; 15. Rectangular block; 16. Cover plate; 17. Fixing plate; 18. Second motor; 19. Threaded rod; 20. Toothed plate; 21. Gear; 22. Rotating rod; 23. Connecting plate; 24. Scraper; 25. Water pump; 26. Installation pipe; 27. Connecting pipe; 28. Multi-stage heat exchanger; 29. ​​Vertical pipe; 30. Air inlet pipe; 31. Connecting pipe; 32. Heat exchange water pipe. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 5 As shown, this utility model provides a multi-stage heat exchange condensate waste heat recovery system, including a base plate 1. A filter box 2 is fixedly connected to the left side of the top of the base plate 1. A fixing frame 3 is fixedly connected to the front of the filter box 2. A first motor 4 is fixedly installed on the front of the fixing frame 3. A rotating shaft 5 is fixedly sleeved at the other end of the output shaft of the first motor 4. The other end of the rotating shaft 5 passes through the fixing frame 3 and the filter box 2 in sequence and extends into the inner cavity of the filter box 2 and is fixedly sleeved with a rotating rod 6. A connecting rod 7 is hinged to the bottom end of the rotating rod 6. A clamping plate 8 is hinged to the other end of the connecting rod 7. A sliding groove 9 is opened at the bottom of the inner cavity of the filter box 2. The outer surface of the clamping plate 8 is movably connected to the inside of the sliding groove 9. A fixing ring 10 located below the clamping plate 8 is fixedly installed in the inner cavity of the filter box 2. A filter screen 11 is movably connected between the clamping plate 8 and the fixing ring 10. The outer surface of the filter screen 11 is movably connected to the inner surface of the filter box 2.

[0024] When the first motor 4 starts running, it will cause the rotating shaft 5 to drive the rotating rod 6 to rotate, and cause the connecting rod 7 to move. As a result, the clamping plate 8 moves vertically upward under the limiting action of the sliding groove 9, and finally releases the fixing effect on the filter screen 11.

[0025] The filter screen 11 is fixedly connected to the front side with a sealing ring 12, and the outer surface of the sealing ring 12 is movably connected to the inner surface of the filter box 2.

[0026] The design of the sealing ring 12 prevents condensate from leaking out of the filter box 2, thus improving the sealing effect of the device.

[0027] The filter box 2 has a fixed tube 13 fixedly connected to the inside of the back side, and a cover plate 16 is movably connected to the top of the filter box 2. Locking screws 14 are threadedly connected to the inside of the left and right sides of the cover plate 16. Rectangular blocks 15 are fixedly installed on the top of the left and right sides of the outer surface of the filter box 2. The bottom end of the locking screw 14 passes through the cover plate 16 and the rectangular block 15 in sequence and extends into the inside of the rectangular block 15 and is threadedly connected to the inside of the rectangular block 15.

[0028] When the operator rotates the locking screw 14, causing the locking screw 14 to disengage from the interior of the rectangular block 15, the fixing effect on the cover plate 16 will be released.

[0029] Among them, a fixing plate 17 is fixedly connected to the front and rear sides of the top of the cover plate 16, a second motor 18 is fixedly connected to the front side of the fixing plate 17, and a threaded rod 19 is fixedly sleeved on the other end of the output shaft of the second motor 18.

[0030] When the second motor 18 starts running, it will cause the threaded rod 19 to rotate.

[0031] The other end of the threaded rod 19 passes through the fixed plate 17 and extends into the interior of the fixed plate 17, and is threadedly fitted with a toothed plate 20. The bottom of the toothed plate 20 is movably connected to the interior of the top of the cover plate 16. A gear 21 is meshed with the left side of the toothed plate 20. A rotating rod 22 is fixedly fitted inside the gear 21. The bottom end of the rotating rod 22 passes through the cover plate 16 and extends into the inner cavity of the filter box 2, and is fixedly fitted with a connecting plate 23. A scraping plate 24 is fixedly connected to the bottom of the connecting plate 23. The outer surfaces of the connecting plate 23 and the scraping plate 24 are movably connected to the bottom of the cover plate 16 and the inner surface of the filter box 2, respectively.

[0032] When the threaded rod 19 starts to rotate, the toothed plate 20 will move horizontally backward under the limiting action of the cover plate 16, and the gear 21 will drive the rotating rod 22 to rotate, thereby causing the connecting plate 23 to drive the scraping plate 24 to start rotating along the inner surface of the filter box 2.

[0033] A water pump 25 is fixedly installed on the top of the base plate 1. An installation pipe 26 and a connecting pipe 27 are fixedly installed on the left side and top of the water pump 25, respectively. The other end of the installation pipe 26 passes through the filter box 2 and extends into the interior of the filter box 2. The other end of the connecting pipe 27 is fixedly sleeved with a multi-stage heat exchange box 28. The multi-stage heat exchange box 28 is fixedly installed on the right side of the top of the base plate 1.

[0034] When the water pump 25 starts running, it will draw condensate from the inside of the filter box 2 through the installation pipe 26 and discharge it into the inside of the multi-stage heat exchange box 28 through the connecting pipe 27.

[0035] Among them, the top left and right sides of the multi-stage heat exchange box 28 are respectively fixedly sleeved with vertical pipe 29 and air inlet pipe 30. The bottom end of the air inlet pipe 30 passes through the multi-stage heat exchange box 28 and extends into the inner cavity of the multi-stage heat exchange box 28.

[0036] Cold air is introduced into the inner cavity of the multi-stage heat exchanger 28 through the air inlet pipe 30, and after exchanging heat with the condensate, it is discharged from the device through the vertical pipe 29.

[0037] Among them, an air inlet pipe 30 is fixedly sleeved on the right side of the multi-stage heat exchange box 28, and a heat exchange water pipe 32 is fixedly sleeved on the bottom of the inner cavity of the multi-stage heat exchange box 28.

[0038] After the condensate exchanges heat with the cold air discharged through the air inlet pipe 30, it enters the inner cavity at the bottom of the multi-stage heat exchange box 28 through the connecting pipe 31, and undergoes secondary heat exchange with the heat exchange water pipe 32 to heat the water inside the heat exchange water pipe 32.

[0039] Working principle and usage process of this utility model:

[0040] Condensate is introduced into the filter box 2 through the fixed pipe 13. After being filtered by the filter screen 11, the condensate falls to the bottom of the filter box 2. Then, the water pump 25 is started, which draws the filtered condensate through the installation pipe 26 and discharges it into the multi-stage heat exchange box 28 through the connecting pipe 27. At this time, cold air is introduced into the inner cavity at the top of the multi-stage heat exchange box 28 through the air inlet pipe 30. The condensate exchanges heat with the cold air and then enters the inner cavity at the bottom of the multi-stage heat exchange box 28 through the connecting pipe 31. The condensate then exchanges heat with the heat exchange water pipe 32 and heats the water inside the heat exchange water pipe 32, thereby realizing the waste heat recovery function of the multi-stage heat exchange.

[0041] When filter screen 11 becomes damaged and needs replacement after long-term use, closing the fixing pipe 13 and starting the first motor 4 will cause the rotating shaft 5 to drive the rotating rod 6 to rotate, which in turn causes the connecting rod 7 to move. This causes the clamping plate 8 to move vertically upward under the limiting action of the sliding groove 9, ultimately releasing the fixing effect on filter screen 11. At this time, the operator can pull the sealing ring 12 outward to remove filter screen 11, thus facilitating filter screen replacement, improving the efficiency of filter screen replacement, and reducing the operator's labor intensity. When a large amount of condensed water vapor accumulates in the inner cavity of the filter box 2... When the filter reaches the top, the second motor 18 is started. At this time, the threaded rod 19 begins to rotate, causing the toothed plate 20 to move horizontally backward under the limiting action of the cover plate 16. This causes the gear 21 to drive the rotating rod 22 to rotate, thereby causing the connecting plate 23 to drive the scraping plate 24 to rotate along the inner surface of the filter box 2. This achieves a cleaning effect on the top of the inner surface of the filter box 2 at the bottom of the cover plate 16, preventing a large amount of condensate vapor from accumulating at the top of the inner cavity of the filter box 2, which would corrode the surface of the filter box 2 and the cover plate 16. This improves the service life of the filter box 2 and the cover plate 16, and also improves the collection effect of condensate.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage heat exchange condensate waste heat recovery system comprising a base plate (1), characterized in that: The left side of the top of the bottom plate (1) is fixedly connected with a filter box (2), the front of the filter box (2) is fixedly connected with a fixing frame (3), the front of the fixing frame (3) is fixedly installed with a first motor (4), the other end of the output shaft of the first motor (4) is fixedly sleeved with a rotating shaft (5), the other end of the rotating shaft (5) penetrates the fixing frame (3) and the filter box (2) in sequence and extends to the inner cavity of the filter box (2) and is fixedly sleeved with a rotating rod (6), the bottom end of the rotating rod (6) is hingedly connected with a connecting rod (7), the other end of the connecting rod (7) is hingedly connected with a clamping plate (8), the lower portion of the inner cavity of the filter box (2) is provided with a sliding groove (9), the outer surface of the clamping plate (8) is movably connected with the inner portion of the sliding groove (9), the inner cavity of the filter box (2) is fixedly installed with a fixed ring (10) below the clamping plate (8), the clamping plate (8) and the fixed ring (10) are movably connected with a filter screen (11), and the outer surface of the filter screen (11) is movably connected with the inner surface of the filter box (2).

2. The multi-stage heat exchange condensate waste heat recovery system according to claim 1, characterized in that: The front of the filter screen (11) is fixedly connected with a sealing ring (12), and the outer surface of the sealing ring (12) is movably connected with the inner surface of the filter box (2).

3. The multi-stage heat exchange condensate waste heat recovery system according to claim 1, characterized in that: The inner portion of the back of the filter box (2) is fixedly sleeved with a fixed pipe (13), the top of the filter box (2) is movably connected with a cover plate (16), the inner portions of the left and right sides of the cover plate (16) are threadedly sleeved with locking screws (14), the top of the outer surface of the filter box (2) is fixedly installed with rectangular blocks (15) on the left and right sides, and the bottom end of the locking screw (14) penetrates the cover plate (16) and the rectangular block (15) in sequence, extends to the inner portion of the rectangular block (15), and is threadedly sleeved with the inner portion of the rectangular block (15).

4. The multi-stage heat exchange condensate waste heat recovery system according to claim 3, characterized in that: The front and rear of the top of the cover plate (16) are fixedly connected with fixed plates (17), the front of the fixed plate (17) is fixedly connected with a second motor (18), and the other end of the output shaft of the second motor (18) is fixedly sleeved with a threaded rod (19).

5. The multi-stage heat exchange condensate waste heat recovery system according to claim 4, characterized in that: The other end of the threaded rod (19) penetrates the fixed plate (17), extends to the inner portion of the fixed plate (17), and is threadedly sleeved with a toothed plate (20), the bottom of the toothed plate (20) is movably connected with the inner portion of the top of the cover plate (16), the left side of the toothed plate (20) is engagedly connected with a gear (21), the inner portion of the gear (21) is fixedly sleeved with a rotating rod (22), the bottom end of the rotating rod (22) penetrates the cover plate (16), extends to the inner cavity of the filter box (2), and is fixedly sleeved with a connecting plate (23), the bottom of the connecting plate (23) is fixedly connected with a scraping plate (24), and the outer surfaces of the connecting plate (23) and the scraping plate (24) are movably connected with the bottom of the cover plate (16) and the inner surface of the filter box (2), respectively.

6. The multi-stage heat exchange condensate waste heat recovery system according to claim 1, characterized in that: The top of the bottom plate (1) is fixedly installed with a water pump (25), the left side and the top of the water pump (25) are fixedly installed with a mounting pipe (26) and a connecting pipe (27) respectively, the other end of the mounting pipe (26) penetrates through the filter box (2) and extends to the inside of the filter box (2), the other end of the connecting pipe (27) is fixedly sleeved with a multi-stage heat exchange box (28), and the multi-stage heat exchange box (28) is fixedly installed on the right side of the top of the bottom plate (1).

7. The multi-stage heat exchange condensate waste heat recovery system according to claim 6, characterized in that: The left side and the right side of the top of the multi-stage heat exchange box (28) are fixedly sleeved with a vertical pipe (29) and an air inlet pipe (30) respectively, and the bottom end of the air inlet pipe (30) penetrates through the multi-stage heat exchange box (28) and extends to the inner cavity of the multi-stage heat exchange box (28).

8. The multi-stage heat exchange condensate waste heat recovery system according to claim 6, characterized in that: The right side of the multi-stage heat exchange box (28) is fixedly sleeved with an air inlet pipe (30), and the bottom of the inner cavity of the multi-stage heat exchange box (28) is fixedly sleeved with a heat exchange water pipe (32).

Images