Waste heat utilization device for condensing and recycling high-temperature steam

Abstract

The waste heat utilization device comprises a heat exchange water tank and a condensation water tank, the heat exchange water tank is fixedly installed at the top of the condensation water tank, and a heat exchange coil pipe is fixedly installed in the heat exchange water tank; used condensate water is introduced through the water inlet pipe, enters the heat exchange coil pipe and exchanges heat with cold water in the heat exchange water tank, so that the temperature of the cold water in the heat exchange water tank is increased, the temperature of the condensate water discharged by the drying equipment is reduced, and heat exchange is achieved; the cooled condensate water is discharged into the condensate water tank through a water outlet pipe, then the condensate water in the condensate water tank is pumped into a boiler room softened water tank through a first water suction pump, and cold water subjected to heat exchange in the heat exchange water tank is pumped into a hot water tank of the ash melting machine through a second water suction pump, so that the heating energy of the ash melting water is greatly saved; the effect of recycling heat is achieved, and resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology, specifically a waste heat utilization device for high-temperature steam condensation and recovery. Background Technology

[0002] Drying equipment refers to a combination of mechanical devices that use certain technical means to dry the surface of objects of moisture or other liquids. During the use of drying equipment, condensate water is needed to cool the entire drying equipment.

[0003] Steam is generated in the condensate coming out of the drying equipment, resulting in significant heat loss. The temperature of the steam-condensate is above 95℃, sometimes reaching 98℃. After entering the condensate tank, it needs to reach a certain liquid level before it can be pumped to the boiler soft water tank by a hot water pump. During this process, a large amount of heat is wasted, resulting in a waste of resources, manpower, and materials. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat recovery device for high-temperature steam condensation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery device for high-temperature steam condensation, comprising a hot water exchange tank and a condensate tank, wherein the hot water exchange tank is fixedly installed on the top of the condensate tank, a heat exchange coil is fixedly installed inside the hot water exchange tank, one end of the heat exchange coil is connected to an inlet pipe, the end of the heat exchange coil away from the inlet pipe is connected to an outlet pipe, a second water pump is connected to the bottom of one side of the hot water exchange tank, and a first water pump is connected to the bottom of one side of the condensate tank.

[0006] Preferably, the end of the water outlet pipe away from the heat exchange coil is located directly above the condensate tank.

[0007] Preferably, a mounting ear plate is fixedly installed on the side of the hot water tank away from the second water pump, a drive motor is fixedly installed on one side of the mounting ear plate, a threaded rod is fixedly installed on the output end of the drive motor, a frame block is fixedly installed on the side of the hot water tank where the mounting ear plate is fixedly installed, and the end of the threaded rod away from the drive motor is rotatably installed on the inner side of the frame block.

[0008] Preferably, the hot water exchange tank has a rectangular sliding groove inside one side of the mounting ear plate, a movable plate is slidably installed inside the rectangular sliding groove, a toggle plate is fixedly installed at the bottom of the movable plate, the toggle plate has a rectangular through groove inside, and the toggle plate is located inside the hot water exchange tank.

[0009] Preferably, a movable block is fixedly installed at one end of the movable plate, and a threaded hole is opened inside the movable block. The specification and size of the internal thread of the threaded hole match the specification and size of the external thread of the threaded rod. The movable block is threadedly connected to the outside of the threaded rod through the threaded hole.

[0010] Preferably, the bottom of the hot water tank has two symmetrically fixed support legs 1, and the bottom of the condensate tank has two symmetrically fixed support legs 2. The end of the support leg 1 away from the hot water tank and the end of the support leg 2 away from the condensate tank are on the same horizontal plane.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Condensate after use is introduced through the inlet pipe and enters the heat exchange coil, where it exchanges heat with the cold water inside the hot water tank. This raises the temperature of the cold water inside the hot water tank and lowers the temperature of the condensate discharged from the drying equipment, thus achieving heat exchange. The cooled condensate is then discharged into the condensate tank through the outlet pipe. A water pump then pumps the condensate from the condensate tank to the boiler room's soft water tank. Meanwhile, the cooled water inside the hot water tank is pumped to the hot water tank of the ash-making machine by a second water pump. This significantly saves the heating energy for ash-making water, achieves heat recovery and utilization, and conserves resources.

[0012] The drive motor can be started, and the output end of the drive motor can drive the threaded rod to rotate. Under the limit of the rectangular slide and the moving plate, the moving block can move on the outside of the threaded rod, thereby driving the actuating plate to move inside the hot water tank through the moving plate, thus pushing and mixing the water inside the hot water tank, avoiding local high temperature and local low temperature, and improving the heat exchange effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present utility model.

[0014] Figure 2 This is a side view of the three-dimensional structure of the present invention.

[0015] Figure 3 This is a three-dimensional structural diagram of the heat exchange coil of this utility model.

[0016] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0017] In the diagram: 1. Hot water tank; 2. Condensate tank; 3. Outlet pipe; 4. Inlet pipe; 5. Water pump one; 6. Water pump two; 7. Support leg one; 8. Moving plate; 9. Mounting ear plate; 10. Drive motor; 11. Moving block; 12. Heat exchange coil; 13. Threaded rod; 14. Rectangular slide; 15. Frame block; 16. Actuating plate; 17. Rectangular through slot; 18. Threaded hole; 19. Support leg two. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-Figure 4 This utility model provides a technical solution: a waste heat recovery device for high-temperature steam condensation, including a hot water tank 1 and a condensate tank 2. The hot water tank 1 is fixedly installed on the top of the condensate tank 2. A heat exchange coil 12 is fixedly installed inside the hot water tank 1. One end of the heat exchange coil 12 is connected to an inlet pipe 4, and the end of the heat exchange coil 12 away from the inlet pipe 4 is connected to an outlet pipe 3. A second water pump 6 is connected to the bottom of one side of the hot water tank 1, and a first water pump 5 is connected to the bottom of one side of the condensate tank 2. The end of the outlet pipe 3 away from the heat exchange coil 12 is located directly above the condensate tank 2.

[0020] The working principle of the above technical solution is as follows: First, the condensate discharge pipe of the drying equipment is connected to the inlet pipe 4, and the end of the second water pump 6 away from the heat exchange tank 1 is connected to the hot water tank of the ash-making machine. The end of the first water pump 5 away from the condensate tank 2 is connected to the soft water tank of the boiler room. Then, the used condensate is introduced through the inlet pipe 4. The used condensate enters the interior of the heat exchange coil 12 and exchanges heat with the cold water inside the heat exchange tank 1, raising the temperature of the cold water inside the heat exchange tank 1 and lowering the temperature of the condensate discharged from the drying equipment, thus achieving heat exchange. The cooled condensate is discharged into the condensate tank 2 through the outlet pipe 3. Then, the condensate inside the condensate tank 2 is pumped to the soft water tank of the boiler room by the first water pump 5. Meanwhile, the cold water inside the heat exchange tank 1, after heat exchange, is pumped to the hot water tank of the ash-making machine by the second water pump 6. This greatly saves the heating energy of the ash-making water, achieves the effect of heat recovery and utilization, and saves resources.

[0021] In another implementation scheme, such as Figure 1-Figure 4As shown, a mounting ear plate 9 is fixedly installed on the side of the hot water tank 1 away from the water pump 6. A drive motor 10 is fixedly installed on the side of the mounting ear plate 9. A threaded rod 13 is fixedly installed at the output end of the drive motor 10. A bracket block 15 is fixedly installed on the side of the hot water tank 1 where the mounting ear plate 9 is fixedly installed. The end of the threaded rod 13 away from the drive motor 10 is rotatably installed inside the bracket block 15. A rectangular slide groove 14 is opened inside the side of the hot water tank 1 where the mounting ear plate 9 is fixedly installed. A movable plate 8 is slidably installed inside the rectangular slide groove 14. A toggle plate 16 is fixedly installed at the bottom of the movable plate 8. A rectangular through groove 17 is opened inside the toggle plate 16. The toggle plate 16 is located inside the hot water tank 1. A movable block 11 is fixedly installed at one end of the movable plate 8. A threaded hole 18 is opened inside the movable block 11. The specifications of the internal thread of the threaded hole 18 match the specifications of the external thread of the threaded rod 13. The movable block 11 is threadedly connected to the outside of the threaded rod 13 through the threaded hole 18.

[0022] The drive motor 10 can be started, and the output end of the drive motor 10 can drive the threaded rod 13 to rotate. Under the limitation of the rectangular slide 14 and the moving plate 8, the moving block 11 can move outside the threaded rod 13, thereby driving the actuating plate 16 to move inside the hot water tank 1 through the moving plate 8, thereby pushing and mixing the water inside the hot water tank 1, avoiding local high temperature and local low temperature, and improving the heat exchange effect.

[0023] In another implementation scheme, such as Figure 1-Figure 4 As shown, the bottom of the hot water tank 1 has two symmetrically fixed support legs 7, and the bottom of the condensate tank 2 has two symmetrically fixed support legs 19. The end of the support leg 7 away from the hot water tank 1 and the end of the support leg 19 away from the condensate tank 2 are on the same horizontal plane.

[0024] The support legs 19 and 7 provide overall support for the device, maintaining its stability and ensuring its normal operation.

[0025] Working principle: The condensate drain pipe of the drying equipment is connected to the inlet pipe 4. The end of the second water pump 6 away from the heat exchange tank 1 is connected to the hot water tank of the ash-making machine, and the end of the first water pump 5 away from the condensate tank 2 is connected to the soft water tank of the boiler room. Then, the used condensate is introduced through the inlet pipe 4. The used condensate enters the heat exchange coil 12 and exchanges heat with the cold water inside the heat exchange tank 1, raising the temperature of the cold water inside the heat exchange tank 1 and lowering the temperature of the condensate discharged from the drying equipment. After cooling, the condensate is discharged into the condensate tank 2 through the outlet pipe 3. Then, the condensate in the condensate tank 2 is pumped to the boiler room soft water tank by the water pump 5. The cold water in the heat exchange tank 1, after heat exchange, is pumped to the hot water tank of the ash-making machine by the water pump 6. In addition, the drive motor 10 can be started. The output end of the drive motor 10 can drive the threaded rod 13 to rotate. Under the limit of the rectangular slide 14 and the moving plate 8, the moving block 11 can move outside the threaded rod 13. Thus, the moving plate 8 drives the actuating plate 16 to move inside the heat exchange tank 1, thereby pushing and mixing the water inside the heat exchange tank 1, avoiding local high temperature and local low temperature, and improving the heat exchange effect.

[0026] 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 waste heat recovery device for high-temperature steam condensation, comprising a hot water tank (1) and a condensate tank (2), characterized in that: The hot water tank (1) is fixedly installed on the top of the condensate tank (2). A heat exchange coil (12) is fixedly installed inside the hot water tank (1). One end of the heat exchange coil (12) is connected to an inlet pipe (4). The end of the heat exchange coil (12) away from the inlet pipe (4) is connected to an outlet pipe (3). A second water pump (6) is connected to the bottom of one side of the hot water tank (1). A first water pump (5) is connected to the bottom of one side of the condensate tank (2).

2. The waste heat recovery device for high-temperature steam condensation according to claim 1, characterized in that: The end of the outlet pipe (3) away from the heat exchange coil (12) is located directly above the condensate tank (2).

3. The waste heat recovery device for high-temperature steam condensation according to claim 2, characterized in that: The hot water tank (1) is fixedly mounted with an mounting ear plate (9) on the side away from the second water pump (6). A drive motor (10) is fixedly mounted on one side of the mounting ear plate (9). A threaded rod (13) is fixedly mounted on the output end of the drive motor (10). A frame block (15) is fixedly mounted on the side of the hot water tank (1) where the mounting ear plate (9) is fixedly mounted. The end of the threaded rod (13) away from the drive motor (10) is rotatably mounted on the inside of the frame block (15).

4. The waste heat recovery device for high-temperature steam condensation according to claim 3, characterized in that: The hot water exchange tank (1) is fixedly installed with a mounting ear plate (9) and has a rectangular sliding groove (14) inside. A movable plate (8) is slidably installed inside the rectangular sliding groove (14). A toggle plate (16) is fixedly installed at the bottom of the movable plate (8). A rectangular through groove (17) is opened inside the toggle plate (16). The toggle plate (16) is located inside the hot water exchange tank (1).

5. A waste heat recovery device for high-temperature steam condensation according to claim 4, characterized in that: A movable block (11) is fixedly installed at one end of the movable plate (8). A threaded hole (18) is provided inside the movable block (11). The specifications of the internal thread of the threaded hole (18) match the specifications of the external thread of the threaded rod (13). The movable block (11) is threadedly connected to the outside of the threaded rod (13) through the threaded hole (18).

6. The waste heat recovery device for high-temperature steam condensation according to claim 5, characterized in that: The bottom of the hot water tank (1) is symmetrically fixed with two support legs (7), and the bottom of the condensate tank (2) is symmetrically fixed with two support legs (19). The end of the support leg (7) away from the hot water tank (1) and the end of the support leg (19) away from the condensate tank (2) are on the same horizontal plane.

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