A cooling water heat recovery and utilization device

Abstract

This invention belongs to the field of heat exchangers, specifically a cooling water heat recovery and utilization device. It includes a heat exchanger for cooling water heat recovery and utilization. A sealing plate is fixedly installed on one side of the heat exchanger, and a flow-limiting pipe is fixedly installed on one side of the sealing plate. A flow-limiting shell is fixedly installed on the top of the flow-limiting pipe, and a flow-limiting mechanism is provided inside the flow-limiting shell. A preheating mechanism is provided on the top of the heat exchanger, and multiple heat exchange copper tubes are fixedly installed inside the heat exchanger. This invention can utilize the steam in the heat exchanger to preheat the heat exchange medium about to enter the heat exchanger, making the heat utilization in the equipment more thorough. Simultaneously, by controlling the discharge flow rate of the heat exchange medium in the heat exchanger, and in conjunction with the baffle plate, it extends the time the heat exchange medium spends in the heat exchanger, improving the heat exchange effect and reducing heat loss.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a cooling water heat recovery and utilization device. Background Technology

[0002] A heat exchanger, also known as a heat exchanger, is a device that enables heat transfer between two or more fluids at different temperatures. Its main function is to transfer heat from a higher-temperature fluid to a lower-temperature fluid to meet the temperature requirements of the fluid in a production process or to achieve heat recovery and utilization. Heat exchangers are widely used in many fields such as chemical, petroleum, power, food, refrigeration, and air conditioning.

[0003] When performing cooling water heat recovery, since the heat exchange medium in the heat exchanger is fluid, it is easy for the heat in the heat exchange pipes to not be completely absorbed and the heat exchange medium to be replaced, resulting in low heat exchange efficiency of the heat exchange medium and also causing a large amount of heat loss.

[0004] Therefore, we propose a cooling water heat recovery and utilization device to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cooling water heat recovery and utilization device includes a heat exchanger for cooling water heat recovery and utilization. A sealing plate is fixedly installed on one side of the heat exchanger, a flow-limiting pipe is fixedly installed on one side of the sealing plate, a flow-limiting shell is fixedly installed on the top of the flow-limiting pipe, and a flow-limiting mechanism is provided on the inner side of the flow-limiting shell; a preheating mechanism is provided on the top of the heat exchanger.

[0007] Specifically, multiple heat exchange copper tubes are fixedly installed on the inner side of the heat exchanger. The same liquid inlet head is fixedly installed on the input end of each of the multiple heat exchange copper tubes, and the same liquid outlet head is fixedly installed on the output end of each of the multiple heat exchange copper tubes.

[0008] Specifically, multiple baffles are fixedly installed on the inner side of the heat exchanger to slow down the flow rate of the heat exchange medium.

[0009] Specifically, temperature sensors are fixedly installed on one side and the bottom inner wall of the heat exchanger to monitor the temperature of the heat exchange medium.

[0010] Specifically, the preheating mechanism includes a preheating head, a preheating shell, a medium head, and two steam pipes. The preheating head is fixedly installed on the top of the heat exchanger, and the preheating shell is fixedly installed on the top of the preheating head. The medium head is fixedly installed on one side of the preheating shell. Two steam pipes are fixedly installed on the top of the heat exchanger, and one end of each steam pipe is connected to the same preheating shell.

[0011] Specifically, the current limiting mechanism includes a worm gear, a worm, a servo motor, a threaded sleeve, and a threaded rod. A threaded sleeve is rotatably mounted on the top inner wall of the current limiting housing. A worm gear is fixedly sleeved on the outer side of the threaded sleeve. A worm is rotatably mounted on one inner wall of the current limiting housing, and the worm meshes with the worm gear. A servo motor is fixedly mounted on the other inner wall of the current limiting housing, and the output shaft of the servo motor is fixedly connected to the worm. A threaded rod is slidably mounted on the inner side of the threaded sleeve, and the threaded rod is threadedly connected to the threaded sleeve, allowing the threaded rod to move axially via the threaded sleeve.

[0012] Specifically, the top of the flow-limiting pipe is provided with a sliding port, and a flow-limiting plate is slidably installed on the inner side of the sliding port. The threaded rod is rotatably connected to the flow-limiting plate, and the flow-limiting plate can be moved by the threaded rod.

[0013] Specifically, a sealing gasket is fixedly installed on the outer side of the flow-limiting plate. The sealing gasket is in contact with the inner wall of the flow-limiting pipe, which facilitates the closure of the flow-limiting pipe and thus prolongs the residence time of the heat exchange medium in the heat exchanger.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a preheating mechanism, the heat exchange medium that is about to enter the heat exchanger can be preheated by the steam in the heat exchanger, so that the heat in the equipment can be utilized more thoroughly. At the same time, by controlling the discharge flow rate of the heat exchange medium in the heat exchanger, the heat exchange medium can be extended in the heat exchanger in conjunction with the baffle plate, so that the heat exchange effect is better and the heat loss is reduced. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a cooling water heat recovery and utilization device proposed in this utility model;

[0016] Figure 2 This is a three-dimensional structural breakdown diagram of a cooling water heat recovery and utilization device proposed in this utility model;

[0017] Figure 3 This is a three-dimensional cross-sectional view of the heat exchanger of a cooling water heat recovery and utilization device proposed in this utility model;

[0018] Figure 4This is a three-dimensional cross-sectional view of the preheating mechanism of a cooling water heat recovery and utilization device proposed in this utility model.

[0019] Figure 5 This is a three-dimensional cross-sectional view of the flow-limiting mechanism of a cooling water heat recovery and utilization device proposed in this utility model;

[0020] Figure 6 This is a three-dimensional structural disassembly diagram of the flow-limiting mechanism of a cooling water heat recovery and utilization device proposed in this utility model.

[0021] In the diagram: 1. Heat exchanger; 2. Heat exchange copper tube; 3. Liquid inlet head; 4. Liquid outlet head; 5. Baffle plate; 6. Temperature sensor; 7. Preheating head; 8. Preheating shell; 9. Medium head; 10. Steam pipe; 11. Sealing plate; 12. Flow limiting pipe; 13. Flow limiting shell; 14. Flow limiting plate; 15. Sealing gasket; 16. Worm gear; 17. Worm; 18. Servo motor; 19. Threaded sleeve; 20. Threaded rod. Detailed Implementation

[0022] Reference Figure 1-6 A cooling water heat recovery and utilization device includes a heat exchanger 1 for cooling water heat recovery and utilization. A sealing plate 11 is fixedly installed on one side of the heat exchanger 1. A flow-limiting pipe 12 is fixedly installed on one side of the sealing plate 11. A flow-limiting shell 13 is fixedly installed on the top of the flow-limiting pipe 12. A flow-limiting mechanism is provided on the inner side of the flow-limiting shell 13. A preheating mechanism is provided on the top of the heat exchanger 1.

[0023] In this embodiment, multiple heat exchange copper tubes 2 are fixedly installed on the inner side of the heat exchanger 1. The same liquid inlet head 3 is fixedly installed on the input end of each of the multiple heat exchange copper tubes 2, and the same liquid outlet head 4 is fixedly installed on the output end of each of the multiple heat exchange copper tubes 2.

[0024] In this embodiment, multiple baffles 5 are fixedly installed on the inner side of the heat exchanger 1, which can slow down the flow rate of the heat exchange medium.

[0025] In this embodiment, temperature sensors 6 are fixedly installed on one side and the bottom inner wall of the heat exchanger 1 to monitor the temperature of the heat exchange medium.

[0026] In this embodiment, the preheating mechanism includes a preheating head 7, a preheating shell 8, a medium head 9, and two steam pipes 10. The preheating head 7 is fixedly installed on the top of the heat exchanger 1, the preheating shell 8 is fixedly installed on the top of the preheating head 7, the medium head 9 is fixedly installed on one side of the preheating shell 8, and two steam pipes 10 are fixedly installed on the top of the heat exchanger 1. One end of each of the two steam pipes 10 is connected to the same preheating shell 8.

[0027] In this embodiment, the current limiting mechanism includes a worm gear 16, a worm 17, a servo motor 18, a threaded sleeve 19, and a threaded rod 20. The threaded sleeve 19 is rotatably mounted on the top inner wall of the current limiting housing 13, and the worm gear 16 is fixedly sleeved on the outer side of the threaded sleeve 19. The worm 17 is rotatably mounted on one inner wall of the current limiting housing 13, and the worm 17 meshes with the worm gear 16. The servo motor 18 is fixedly mounted on the other inner wall of the current limiting housing 13, and the output shaft of the servo motor 18 is fixedly connected to the worm 17. The threaded rod 20 is slidably mounted on the inner side of the threaded sleeve 19, and the threaded rod 20 is threadedly connected to the threaded sleeve 19. The threaded sleeve can drive the threaded rod to move axially.

[0028] In this embodiment, a sliding port is provided at the top of the flow-limiting pipe 12, and a flow-limiting plate 14 is slidably installed on the inner side of the sliding port. The threaded rod 20 is rotatably connected to the flow-limiting plate 14, and the flow-limiting plate 14 can be moved by the threaded rod 20.

[0029] In this embodiment, a sealing gasket 15 is fixedly installed on the outer side of the flow limiting plate 14. The sealing gasket 15 is in contact with the inner wall of the flow limiting pipe 12, which facilitates the closure of the flow limiting pipe and thus prolongs the residence time of the heat exchange medium in the heat exchanger.

[0030] Working Principle: During heat recovery from cooling water, heated cooling water is delivered into multiple heat exchange copper tubes 2 through the inlet head 3. Then, the heat exchange medium is introduced into the heat exchanger 1 through the medium head 9. The heat exchange medium contacts the multiple heat exchange copper tubes 2, absorbing heat from them. Simultaneously, the steam generated during the heat exchange process rises and enters the preheating shell 8 through two steam pipes 10, thereby heating the heat exchange medium that is about to enter the heat exchanger 1 through the medium head 9. Multiple baffles 5 obstruct the flow of the heat exchange medium, thus prolonging its time in the heat exchanger 1. Meanwhile, the operator uses a temperature sensor 6 to monitor the temperature of the heat exchange medium in the heat exchanger 1. The temperature of the heat exchange medium is monitored. If the temperature of the heat exchange medium is lower than the normal value, the flow limiting mechanism is activated. The servo motor 18 starts and drives the worm gear 17 to rotate. The rotation of the worm gear 17 drives the worm wheel 16 to rotate. The rotation of the worm wheel 16 drives the threaded sleeve 19 to rotate. The inner thread of the threaded sleeve 19 is connected to the threaded rod 20. However, the bottom end of the threaded rod 20 is fixedly connected to the flow limiting plate 14 and therefore cannot rotate. The rotation of the threaded sleeve 19 drives the threaded rod 20 to move axially. The movement of the threaded rod 20 drives the flow limiting plate 14 to move. The flow limiting plate 14 drives the sealing gasket 15 to move, thereby sealing the flow limiting pipe 12 of the heat exchanger 1. This prolongs the time of the heat exchange medium in the heat exchanger 1, making the heat exchange more thorough and reducing heat loss.

[0031] The technological advancement of this invention compared to the prior art is that the steam in the heat exchanger 1 can be used to preheat the heat exchange medium that is about to enter the heat exchanger 1, so that the heat in the equipment can be utilized more thoroughly. At the same time, by controlling the discharge flow rate of the heat exchange medium in the heat exchanger 1, the time of the heat exchange medium in the heat exchanger 1 can be extended in conjunction with the baffle plate 5, so that the heat exchange effect is better and the heat loss is reduced.

Claims

1. A cooling water heat recovery and utilization device, characterized in that, The heat exchanger (1) is used for heat recovery and utilization of cooling water. A sealing plate (11) is fixedly installed on one side of the heat exchanger (1). A flow-limiting pipe (12) is fixedly installed on one side of the sealing plate (11). A flow-limiting shell (13) is fixedly installed on the top of the flow-limiting pipe (12). A flow-limiting mechanism is provided on the inner side of the flow-limiting shell (13). The heat exchanger (1) is provided with a preheating mechanism at the top.

2. The cooling water heat recovery and utilization device according to claim 1, characterized in that, Multiple heat exchange copper tubes (2) are fixedly installed on the inner side of the heat exchanger (1). The same liquid inlet head (3) is fixedly installed on the input end of the multiple heat exchange copper tubes (2), and the same liquid outlet head (4) is fixedly installed on the output end of the multiple heat exchange copper tubes (2).

3. The cooling water heat recovery and utilization device according to claim 1, characterized in that, Multiple baffles (5) are fixedly installed on the inner side of the heat exchanger (1).

4. The cooling water heat recovery and utilization device according to claim 1, characterized in that, Temperature sensors (6) are fixedly installed on one side and the bottom inner wall of the heat exchanger (1).

5. The cooling water heat recovery and utilization device according to claim 1, characterized in that, The preheating mechanism includes a preheating head (7), a preheating shell (8), a medium head (9), and two steam pipes (10). The preheating head (7) is fixedly installed on the top of the heat exchanger (1), and the preheating shell (8) is fixedly installed on the top of the preheating head (7). The medium head (9) is fixedly installed on one side of the preheating shell (8). Two steam pipes (10) are fixedly installed on the top of the heat exchanger (1), and one end of each steam pipe (10) is connected to the same preheating shell (8).

6. The cooling water heat recovery and utilization device according to claim 1, characterized in that, The current limiting mechanism includes a worm gear (16), a worm (17), a servo motor (18), a threaded sleeve (19), and a threaded rod (20). The threaded sleeve (19) is rotatably installed on the top inner wall of the current limiting housing (13). The worm gear (16) is fixedly sleeved on the outer side of the threaded sleeve (19). The worm (17) is rotatably installed on one inner wall of the current limiting housing (13). The worm (17) meshes with the worm gear (16). The servo motor (18) is fixedly installed on the other inner wall of the current limiting housing (13). The output shaft of the servo motor (18) is fixedly connected to the worm (17). The threaded rod (20) is slidably installed on the inner side of the threaded sleeve (19). The threaded rod (20) is threadedly connected to the threaded sleeve (19).

7. A cooling water heat recovery and utilization device according to claim 6, characterized in that, The top of the flow-limiting pipe (12) is provided with a sliding port, and a flow-limiting plate (14) is slidably installed on the inner side of the sliding port. The threaded rod (20) is rotatably connected to the flow-limiting plate (14).

8. A cooling water heat recovery and utilization device according to claim 7, characterized in that, A sealing gasket (15) is fixedly installed on the outside of the flow limiting plate (14), and the sealing gasket (15) is in contact with the inner wall of the flow limiting pipe (12).

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