Heat exchanger with waste heat recovery function

By setting a filter box and filter plate in the heat exchanger for gas filtering, and using components such as temperature sensors and solenoid valves to achieve the problem of residual heat recovery, the impurities attachment and residual heat recovery in existing heat exchanges are not good. The service life and recovery efficiency of the equipment.

CN222418645UActive Publication Date: 2025-01-28BISI IND EQUIP MFG (WUXI) CO LTD
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Patent Information

Application Number
CN202420198383.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-27
Publication Date
2025-01-28
Estimated Expiration
2034-01-27

AI Technical Summary

Technical Problem

The existing heat exchangers do not have a filtering function during use, which causes impurities in the exhaust gas to easily adhere to the heat exchanger, affecting the use effect, and the exhausted gas does not have a detection function, resulting in poor waste heat recovery effect.

Method used

Design a heat exchanger with residual heat recovery function, filter the gas by setting the filter box and filter plate, and use the temperature sensor, solenoid valve, hollow tube, second fan, fixed pipe and spray head to achieve the remaining heat to achieve the remaining heat. Effective recycling.

Benefits of technology

Through the filtering function of the filter box and the filter plate, the impurities attachment is avoided, and the service life and residual heat recovery efficiency of the heat exchanger can be improved. At the same time, the control of the gas through the control of the temperature sensor and the solenoid valve to achieve effective detection and recycling of the gas.

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Abstract

The heat exchanger with the waste heat recovery function comprises a supporting plate, a filter box is fixedly connected to the right side of the top of the supporting plate, a filter plate is connected to the top of the filter box in an inserted mode, a shell is fixedly connected to the front face of the filter box, and an electric cylinder is fixedly connected to the bottom of an inner cavity of the shell. A connecting plate is fixedly connected to the top of the electric cylinder, a plug pin is fixedly connected to the top of the connecting plate, a limiting plate is connected to the surface of the plug pin in an inserted mode, the left side of the filter box communicates with an air exhaust head, the top of the air exhaust head communicates with a first fan, and the top of the first fan communicates with an exhaust pipe. According to the waste heat recovery device, gas is conveniently filtered by arranging the filter box and the filter plate, the waste heat recovery effect is good by arranging a temperature sensor, an electromagnetic valve, a hollow pipe, a second fan, a fixed pipe and a spray head, and the filter plate is conveniently assembled and disassembled by arranging the shell, an electric cylinder, a connecting plate, a plug pin and a limiting plate, so that the filter plate is conveniently cleaned.
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Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger with a waste heat recovery function. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] In order to save resources, it is necessary to recover the heat in the boiler exhaust gas. However, the existing heat exchanger does not have a filtering function during use. Impurities in the exhaust gas are easily attached to the heat exchanger, which will affect the use of the heat exchanger. In addition, the exhaust gas does not have a detection function, which makes the waste heat recovery effect poor. For this reason, we propose a heat exchanger with waste heat recovery function. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a heat exchanger with a waste heat recovery function, which has the advantage of good waste heat recovery effect, and solves the problem that the existing heat exchanger does not have a filtering function during use, impurities in the exhaust gas are easily attached to the heat exchanger, which will affect the use of the heat exchanger, and the exhaust gas does not have a detection function, resulting in a poor waste heat recovery effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger with waste heat recovery function, comprising a support plate, a filter box is fixedly connected to the right side of the top of the support plate, a filter plate is plugged into the top of the filter box, a shell is fixedly connected to the front of the filter box, an electric cylinder is fixedly connected to the bottom of the inner cavity of the shell, a connecting plate is fixedly connected to the top of the electric cylinder, a plug is fixedly connected to the top of the connecting plate, a limit plate is plugged into the surface of the plug, an exhaust head is connected to the left side of the filter box, a first fan is connected to the top of the exhaust head, an exhaust pipe is connected to the top of the first fan, a heat exchange cylinder is connected to one side of the exhaust pipe, a hollow block is connected to the left side of the top of the heat exchange cylinder, a temperature sensor is fixedly connected to the left side of the top of the inner cavity of the hollow block, a solenoid valve is connected to the top of the hollow block, a hollow tube is connected to the left side of the hollow block, a second fan is connected to the bottom of the hollow tube, a fixed tube is connected to the bottom of the second fan, a nozzle is connected to one side of the fixed tube, and the top of the nozzle is connected to the heat exchange cylinder.

[0006] Preferably, the inner cavity of the limiting plate is fixedly connected with a connecting shaft, and the left side of the connecting shaft is movably connected to the housing through a bearing.

[0007] Preferably, a motor is fixedly connected to the central axis at the top of the heat exchange cylinder, and a stirring roller is fixedly connected to the output end of the motor.

[0008] Preferably, a support block is fixedly connected to the bottom of the first fan, and the right side of the support block is fixedly connected to the filter box.

[0009] Preferably, the front side of the heat exchange cylinder is connected to a drain pipe, and the bottom of the drain pipe is movably connected to a control valve.

[0010] Preferably, a fixing seat is fixedly connected to the right side of the second fan, and the right side of the fixing seat is fixedly connected to the heat exchange cylinder.

[0011] Preferably, the output end of the temperature sensor is unidirectionally electrically connected to the PLC controller, and the output end of the PLC controller is unidirectionally electrically connected to the solenoid valve, the first fan, the second fan, the electric cylinder and the motor.

[0012] Compared with the prior art, the utility model provides a heat exchanger with waste heat recovery function, which has the following beneficial effects:

[0013] 1. The utility model is convenient for gas filtering by arranging a filter box and a filter plate, and has a good waste heat recovery effect by arranging a temperature sensor, a solenoid valve, a hollow tube, a second fan, a fixed tube and a nozzle. The housing, an electric cylinder, a connecting plate, a latch and a limit plate are arranged to facilitate loading and unloading of the filter plate, thereby facilitating cleaning of the filter plate.

[0014] 2. The utility model provides a connecting shaft and a bearing, which not only facilitates the rotation of the limit plate, but also makes the limit plate stable during operation. By providing a motor and a stirring roller, it is convenient to stir the water and improve the waste heat recovery efficiency. By providing a fixed seat, the operation of the first fan is stabilized and the first fan is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the heat exchange tube of the utility model;

[0018] Figure 4 It is a schematic diagram of the side structure of the shell of the utility model in a cut-away state.

[0019] In the figure: 1. support plate; 2. filter box; 3. filter plate; 4. shell; 5. electric cylinder; 6. connecting plate; 7. latch; 8. limit plate; 9. connecting shaft; 10. exhaust head; 11. first fan; 12. exhaust pipe; 13. heat exchange cylinder; 14. motor; 15. stirring roller; 16. hollow block; 17. temperature sensor; 18. solenoid valve; 19. hollow tube; 20. second fan; 21. fixed tube; 22. nozzle. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4A heat exchanger with waste heat recovery function includes a support plate 1, a filter box 2 is fixedly connected to the right side of the top of the support plate 1, a filter plate 3 is plugged into the top of the filter box 2, a shell 4 is fixedly connected to the front of the filter box 2, an electric cylinder 5 is fixedly connected to the bottom of the inner cavity of the shell 4, a connecting plate 6 is fixedly connected to the top of the electric cylinder 5, a plug 7 is fixedly connected to the top of the connecting plate 6, a limit plate 8 is plugged into the surface of the plug 7, an exhaust head 10 is connected to the left side of the filter box 2, a first fan 11 is connected to the top of the exhaust head 10, and the top of the first fan 11 is connected to the top of the first fan 11. The top of the heat exchange tube 13 is connected to an exhaust pipe 12, one side of the exhaust pipe 12 is connected to a heat exchange tube 13, the left side of the top of the heat exchange tube 13 is connected to a hollow block 16, the left side of the top of the inner cavity of the hollow block 16 is fixedly connected to a temperature sensor 17, the top of the hollow block 16 is connected to an electromagnetic valve 18, the left side of the hollow block 16 is connected to a hollow tube 19, the bottom of the hollow tube 19 is connected to a second fan 20, the bottom of the second fan 20 is connected to a fixed pipe 21, one side of the fixed pipe 21 is connected to a nozzle 22, and the top of the nozzle 22 is connected to the heat exchange tube 13.

[0024] Through the above technical solution: the temperature value is set by the PLC controller, and the first fan 11 is controlled to work. The gas is sucked in through the cooperation of the exhaust head 10 and the filter box 2, and the gas is filtered through the filter plate 3, and then the gas is discharged into the heat exchange cylinder 13 through the exhaust pipe 12, so that the gas contacts with the water and heats the water. Then, the gas will enter the inner cavity of the hollow block 16. After the temperature sensor 17 detects that the temperature value is higher than the set value, the PLC controller will control the second fan 20 to work, through the hollow pipe 19 and the fixed pipe 2 1 and the nozzle 22 cooperate to discharge the gas into the heat exchange cylinder 13 again, so that the waste heat recovery effect is good. After the temperature sensor 17 detects that the temperature value is lower than the set value, the PLC controller will open the solenoid valve 18 to discharge the gas. When the filter plate 3 needs to be cleaned, the PLC controller controls the electric cylinder 5 to work, the electric cylinder 5 drives the connecting plate 6 to move, and the connecting plate 6 drives the latch 7 to move. After the latch 7 is away from the limit plate 8, the limit plate 8 is rotated. After the limit plate 8 is away from the filter plate 3, the filter plate 3 can be taken out for cleaning.

[0025] The inner cavity of the limiting plate 8 is fixedly connected with a connecting shaft 9, and the left side of the connecting shaft 9 is movably connected to the housing 4 through a bearing.

[0026] Through the above technical solution: by providing the connecting shaft 9 and the bearing, not only is it convenient for the limit plate 8 to rotate, but also the limit plate 8 is made stable during operation.

[0027] A motor 14 is fixedly connected to the central axis of the top of the heat exchange tube 13 , and a stirring roller 15 is fixedly connected to the output end of the motor 14 .

[0028] Through the above technical solution: by arranging the motor 14 and the stirring roller 15, it is convenient to stir the water and improve the waste heat recovery efficiency.

[0029] A support block is fixedly connected to the bottom of the first fan 11 , and the right side of the support block is fixedly connected to the filter box 2 .

[0030] The front side of the heat exchange tube 13 is connected to a drain pipe, and the bottom of the drain pipe is movably connected to a control valve.

[0031] The right side of the second fan 20 is fixedly connected to a fixing seat, and the right side of the fixing seat is fixedly connected to the heat exchange tube 13 .

[0032] Through the above technical solution: by providing a fixing seat, the operation of the first fan 11 is stabilized and the first fan 11 is limited.

[0033] The output end of the temperature sensor 17 is unidirectionally electrically connected to the PLC controller, and the output end of the PLC controller is unidirectionally electrically connected to the solenoid valve 18 , the first fan 11 , the second fan 20 , the electric cylinder 5 and the motor 14 .

[0034] The working principle of the utility model is as follows: the temperature value is set by the PLC controller, and the first fan 11 is controlled to work. The gas is sucked in through the cooperation of the exhaust head 10 and the filter box 2, and the gas is filtered through the filter plate 3, and then the gas is discharged into the heat exchange cylinder 13 through the exhaust pipe 12, so that the gas contacts with water and heats the water, and then the gas enters the inner cavity of the hollow block 16. After the temperature sensor 17 detects that the temperature value is higher than the set value, the PLC controller will control the second fan 20 to work, through the hollow pipe 19, the fixed The cooperation of the tube 21 and the nozzle 22 discharges the gas into the heat exchange cylinder 13 again, so that the waste heat recovery effect is good. After the temperature sensor 17 detects that the temperature value is lower than the set value, the PLC controller will open the solenoid valve 18 to discharge the gas. When the filter plate 3 needs to be cleaned, the PLC controller controls the electric cylinder 5 to work, and the electric cylinder 5 drives the connecting plate 6 to move, and the connecting plate 6 drives the pin 7 to move. After the pin 7 is away from the limit plate 8, the limit plate 8 is rotated. After the limit plate 8 is away from the filter plate 3, the filter plate 3 can be taken out for cleaning.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger with waste heat recovery function, comprising a support plate (1), characterized in that: The right side of the top of the support plate (1) is fixedly connected to a filter box (2), the top of the filter box (2) is plugged with a filter plate (3), the front of the filter box (2) is fixedly connected to a shell (4), the bottom of the inner cavity of the shell (4) is fixedly connected to an electric cylinder (5), the top of the electric cylinder (5) is fixedly connected to a connecting plate (6), the top of the connecting plate (6) is fixedly connected to a plug (7), the surface of the plug (7) is plugged with a limit plate (8), the left side of the filter box (2) is connected to an exhaust head (10), the top of the exhaust head (10) is connected to a first fan (11), the top of the first fan (11) is connected to an exhaust pipe (12) ), one side of the exhaust pipe (12) is connected to a heat exchange tube (13), the left side of the top of the heat exchange tube (13) is connected to a hollow block (16), the left side of the top of the inner cavity of the hollow block (16) is fixedly connected to a temperature sensor (17), the top of the hollow block (16) is connected to a solenoid valve (18), the left side of the hollow block (16) is connected to a hollow tube (19), the bottom of the hollow tube (19) is connected to a second fan (20), the bottom of the second fan (20) is connected to a fixed tube (21), one side of the fixed tube (21) is connected to a nozzle (22), and the top of the nozzle (22) is connected to the heat exchange tube (13).

2. A heat exchanger with waste heat recovery function according to claim 1, characterized in that: The inner cavity of the limiting plate (8) is fixedly connected to a connecting shaft (9), and the left side of the connecting shaft (9) is movably connected to the housing (4) via a bearing.

3. The heat exchanger with waste heat recovery function according to claim 1, characterized in that: A motor (14) is fixedly connected to the central axis at the top of the heat exchange cylinder (13), and a stirring roller (15) is fixedly connected to the output end of the motor (14).

4. The heat exchanger with waste heat recovery function according to claim 1, characterized in that: A support block is fixedly connected to the bottom of the first fan (11), and the right side of the support block is fixedly connected to the filter box (2).

5. The heat exchanger with waste heat recovery function according to claim 1, characterized in that: The front side of the heat exchange cylinder (13) is connected to a drainage pipe, and the bottom of the drainage pipe is movably connected to a control valve.

6. The heat exchanger with waste heat recovery function according to claim 1, characterized in that: The right side of the second fan (20) is fixedly connected to a fixing seat, and the right side of the fixing seat is fixedly connected to the heat exchange cylinder (13).

7. The heat exchanger with waste heat recovery function according to claim 1, characterized in that: The output end of the temperature sensor (17) is unidirectionally electrically connected to the PLC controller, and the output end of the PLC controller is unidirectionally electrically connected to the solenoid valve (18), the first fan (11), the second fan (20), the electric cylinder (5) and the motor (14).