Efficient combined heat pipe heat exchange device

Abstract

The utility model relates to the technical field of heat pipes, in particular to an efficient combined heat pipe heat exchange device which comprises an air inlet, an air inlet pipe and a first shell-and-tube heat exchanger, the lower side of the air inlet is fixedly connected with the air inlet pipe, and the right side of the air inlet pipe is fixedly connected with the first shell-and-tube heat exchanger. Through the arrangement of the first shell-and-tube heat exchanger, the heat pipe heat exchanger, the second shell-and-tube heat exchanger and the third shell-and-tube heat exchanger, the heat pipe technology and the shell-and-tube heat exchange technology can be combined, the airflow direction of high-temperature flue gas is adjusted through the first guide pipe, the second guide pipe and the third guide pipe, and fresh air flows into the heat pipe before and after passing through the heat pipe. The first shell-and-tube heat exchanger, the second shell-and-tube heat exchanger and the third shell-and-tube heat exchanger are used for heating fresh air, waste heat in high-temperature flue gas is fully utilized, the heat recovery efficiency is improved, waste heat resources can be fully utilized, the equipment size can be reduced, and the cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipes, in particular to a high-efficiency combined heat pipe heat exchange device. Background Technique

[0002] Flue gas is the main way for general energy-consuming equipment to waste energy. For example, the energy consumption of boiler flue gas emissions is about 15%, and the main energy consumption of other equipment such as stenter machines, dryers and kilns in the printing and dyeing industry is through flue gas emissions. Therefore, it is necessary to recover the waste heat of flue gas through a heat exchange device.

[0003] Some existing heat exchange devices use only one type of heat exchanger alone, and cannot fully utilize the energy in the waste heat. When multiple heat exchangers are used in combination and connected through external pipelines, problems such as too large equipment volume and too high cost are faced. Therefore, a high-efficiency combined heat pipe heat exchange device is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-efficiency combined heat pipe heat exchange device to solve the problems that some existing heat exchange devices use only one type of heat exchanger alone and cannot fully utilize the energy in the waste heat, and when multiple heat exchangers are used in combination and connected through external pipelines, problems such as too large equipment volume and too high cost are faced.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An efficient combined heat pipe heat exchange device, comprising an air inlet, an air inlet pipe and a first shell-and-tube heat exchanger. The lower side of the air inlet is fixedly connected with the air inlet pipe, the right side of the air inlet pipe is fixedly connected with the first shell-and-tube heat exchanger, the upper side of the first shell-and-tube heat exchanger is fixedly connected with an exhaust pipe, the upper side of the exhaust pipe is fixedly connected with an exhaust port, the right side of the first shell-and-tube heat exchanger is fixedly connected with a heat pipe heat exchanger, the upper right part of the heat pipe heat exchanger is fixedly connected with a second shell-and-tube heat exchanger, the upper side of the second shell-and-tube heat exchanger is fixedly connected with a first guiding pipe, the left side of the first guiding pipe is fixedly connected with a butterfly valve, the left side of the butterfly valve is fixedly connected with the exhaust pipe, the lower side of the right half part of the first guiding pipe is fixedly connected with a third shell-and-tube heat exchanger, the lower left part of the third shell-and-tube heat exchanger is fixedly connected with the second shell-and-tube heat exchanger, the front side of the third shell-and-tube heat exchanger is fixedly connected with an air outlet pipe, the lower side of the third shell-and-tube heat exchanger is fixedly connected with a smoke inlet, the lower side of the first shell-and-tube heat exchanger is fixedly connected with a second guiding pipe, the right side of the second guiding pipe is fixedly connected with the heat pipe heat exchanger, the lower side of the second shell-and-tube heat exchanger is fixedly connected with a third guiding pipe, the left side of the third guiding pipe is fixedly connected with the heat pipe heat exchanger, the lower side of the heat pipe heat exchanger is fixedly connected with a bottom plate, the upper left half part of the bottom plate is fixedly connected with the second guiding pipe, and the upper right half part of the bottom plate is fixedly connected with the third guiding pipe.

[0007] Preferably, the first shell-and-tube heat exchanger, the second shell-and-tube heat exchanger and the third shell-and-tube heat exchanger are each composed of a shell and a plurality of vertical pipe bodies. Openings are provided on both the left and right sides of the shells of the first shell-and-tube heat exchanger and the second shell-and-tube heat exchanger, and openings are provided on the left side and the front side of the shell of the third shell-and-tube heat exchanger.

[0008] Preferably, the left-side opening of the shell of the first shell-and-tube heat exchanger is communicated with the air inlet pipe, the right-side opening of the shell of the first shell-and-tube heat exchanger is communicated with the upper half part of the heat pipe heat exchanger, the upper sides of the pipe bodies of the first shell-and-tube heat exchanger are all communicated with the exhaust pipe, and the lower sides of the pipe bodies of the first shell-and-tube heat exchanger are all communicated with the second guiding pipe.

[0009] Preferably, the left side of the shell of the second shell-and-tube heat exchanger is communicated with the upper half part of the heat pipe heat exchanger, the right side of the shell of the second shell-and-tube heat exchanger is communicated with the left side of the shell of the third shell-and-tube heat exchanger, the upper sides of the pipe bodies of the second shell-and-tube heat exchanger are all communicated with the first guiding pipe, and the lower sides of the pipe bodies of the second shell-and-tube heat exchanger are all communicated with the third guiding pipe.

[0010] Preferably, the front side of the shell of the third shell-and-tube heat exchanger is communicated with the air outlet pipe, the upper sides of the pipe bodies of the third shell-and-tube heat exchanger are all communicated with the first guiding pipe, and the lower sides of the pipe bodies of the third shell-and-tube heat exchanger are all communicated with the smoke inlet.

[0011] Preferably, the heat pipe heat exchanger is divided into upper and lower parts. Both the upper and lower parts of the heat pipe heat exchanger are provided with openings symmetrically distributed left and right. The left side of the lower part of the heat pipe heat exchanger communicates with the second guide pipe, and the right side of the lower part of the heat pipe heat exchanger communicates with the third guide pipe.

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

[0013] In the present utility model, through the arranged first shell-and-tube heat exchanger, heat pipe heat exchanger, second shell-and-tube heat exchanger and third shell-and-tube heat exchanger, the device can combine the heat pipe technology and the shell-and-tube heat exchange technology, and use the first guide pipe, the second guide pipe and the third guide pipe to adjust the air flow direction of the high-temperature flue gas, so that before and after the fresh air passes through the heat pipe, the first shell-and-tube heat exchanger, the second shell-and-tube heat exchanger and the third shell-and-tube heat exchanger are respectively used to heat the fresh air, fully utilize the waste heat in the high-temperature flue gas, improve the heat recovery efficiency, and the device can not only meet the full utilization of the waste heat resources, but also reduce the equipment volume and cost. Description of the Drawings

[0014] Figure 1 It is a sectional view of the overall structure of the present utility model.

[0015] In the figure: 1, air inlet; 2, air inlet pipe; 3, first shell-and-tube heat exchanger; 4, smoke exhaust pipe; 5, smoke exhaust port; 6, heat pipe heat exchanger; 7, second shell-and-tube heat exchanger; 8, first guide pipe; 9, butterfly valve; 10, third shell-and-tube heat exchanger; 11, air outlet pipe; 12, smoke inlet; 13, second guide pipe; 14, third guide pipe; 15, bottom plate. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0018] In addition, it should be noted that the use of words such as "first", "second", etc. to limit the components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0019] Please refer to Figure 1 , the present utility model provides a technical solution:

[0020] An efficient combined heat pipe heat exchange device, including an air inlet 1, an air inlet pipe 2 and a first shell-and-tube heat exchanger 3. The lower side of the air inlet 1 is fixedly connected to the air inlet pipe 2. The right side of the air inlet pipe 2 is fixedly connected to the first shell-and-tube heat exchanger 3. The upper side of the first shell-and-tube heat exchanger 3 is fixedly connected to an exhaust pipe 4. The upper side of the exhaust pipe 4 is fixedly connected to an exhaust port 5. The right side of the first shell-and-tube heat exchanger 3 is fixedly connected to a heat pipe heat exchanger 6. The upper right part of the heat pipe heat exchanger 6 is fixedly connected to a second shell-and-tube heat exchanger 7. The upper side of the second shell-and-tube heat exchanger 7 is fixedly connected to a first guiding pipe 8. The left side of the first guiding pipe 8 is fixedly connected to a butterfly valve 9. The left side of the butterfly valve 9 is fixedly connected to the exhaust pipe 4. The lower right part of the first guiding pipe 8 is fixedly connected to a third shell-and-tube heat exchanger 10. The lower left part of the third shell-and-tube heat exchanger 10 is fixedly connected to the second shell-and-tube heat exchanger 7. The front side of the third shell-and-tube heat exchanger 10 is fixedly connected to an air outlet pipe 11. The lower side of the third shell-and-tube heat exchanger 10 is fixedly connected to a smoke inlet 12. The lower side of the first shell-and-tube heat exchanger 3 is fixedly connected to a second guiding pipe 13. The right side of the second guiding pipe 13 is fixedly connected to the heat pipe heat exchanger 6. The lower side of the second shell-and-tube heat exchanger 7 is fixedly connected to a third guiding pipe 14. The left side of the third guiding pipe 14 is fixedly connected to the heat pipe heat exchanger 6. The lower side of the heat pipe heat exchanger 6 is fixedly connected to a bottom plate 15. The upper left part of the bottom plate 15 is fixedly connected to the second guiding pipe 13. The upper right part of the bottom plate 15 is fixedly connected to the third guiding pipe 14.

[0021] The first shell-and-tube heat exchanger 3, the second shell-and-tube heat exchanger 7, and the third shell-and-tube heat exchanger 10 are each composed of a housing and multiple vertical tubes. Openings are provided on both the left and right sides of the housings of the first shell-and-tube heat exchanger 3 and the second shell-and-tube heat exchanger 7, and openings are provided on both the left side and the front side of the housing of the third shell-and-tube heat exchanger 10. The first shell-and-tube heat exchanger 3, the second shell-and-tube heat exchanger 7, and the third shell-and-tube heat exchanger 10 can perform multiple heat exchanges on fresh air. The opening on the left side of the housing of the first shell-and-tube heat exchanger 3 is connected to the air inlet pipe 2, the opening on the right side of the housing of the first shell-and-tube heat exchanger 3 is connected to the upper half of the heat pipe heat exchanger 6, the upper sides of the tubes of the first shell-and-tube heat exchanger 3 are all connected to the smoke exhaust pipe 4, and the lower sides of the tubes of the first shell-and-tube heat exchanger 3 are all connected to the second guide pipe 13. Fresh air can pass through the first shell-and-tube heat exchanger 3 from left to right for heat exchange. The left side of the housing of the second shell-and-tube heat exchanger 7 is connected to the upper half of the heat pipe heat exchanger 6, the right side of the housing of the second shell-and-tube heat exchanger 7 is connected to the left side of the housing of the third shell-and-tube heat exchanger 10, the upper sides of the tubes of the second shell-and-tube heat exchanger 7 are all connected to the first guide pipe 8, and the lower sides of the tubes of the second shell-and-tube heat exchanger 7 are all connected to the third guide pipe 14. Fresh air can pass through the second shell-and-tube heat exchanger 7 from left to right for heat exchange. The front side of the housing of the third shell-and-tube heat exchanger 10 is connected to the air outlet pipe 11, the upper sides of the tubes of the third shell-and-tube heat exchanger 10 are all connected to the first guide pipe 8, and the lower sides of the tubes of the third shell-and-tube heat exchanger 10 are all connected to the smoke inlet 12. Fresh air can pass through the third shell-and-tube heat exchanger 10 from top to bottom for heat exchange. The heat pipe heat exchanger 6 is divided into upper and lower parts. Openings are provided on both the upper and lower parts of the heat pipe heat exchanger 6 and are symmetrically distributed left and right. The left side of the lower half of the heat pipe heat exchanger 6 is connected to the second guide pipe 13, and the right side of the lower half of the heat pipe heat exchanger 6 is connected to the third guide pipe 14. Fresh air can pass through the upper half of the heat pipe heat exchanger 6 from left to right for heat exchange.

[0022] Workflow: Before use, install the device in a suitable position. Exhaust industrial flue gas into the smoke inlet 12 through a blower and a smoke pipe, and recover the flue gas from the smoke outlet 5. Exhaust fresh air into the air inlet 1 through another blower and an air pipe, and recover the fresh air from the air outlet pipe 11. Then the device can be used. When the device is in normal use, the butterfly valve 9 is closed. The flue gas flow direction is: smoke inlet 12, the tube body of the third shell-and-tube heat exchanger 10, the first guiding tube 8, the tube body of the second shell-and-tube heat exchanger 7, the third guiding tube 14, the lower half of the heat pipe heat exchanger 6, the second guiding tube 13, the tube body of the first shell-and-tube heat exchanger 3, the smoke exhaust pipe 4, and the smoke outlet 5. The fresh air flow direction is: air inlet 1, air inlet pipe 2, the shell of the first shell-and-tube heat exchanger 3, the upper half of the heat pipe heat exchanger 6, the shell of the second shell-and-tube heat exchanger 7, the shell of the third shell-and-tube heat exchanger 10, and the air outlet pipe 11. The high-temperature flue gas can exchange heat with the fresh air multiple times, efficiently conducting heat. If the temperature of the high-temperature flue gas is relatively low, the butterfly valve 9 can be opened. When the flue gas passes through the first guiding tube 8, it can directly reach the smoke exhaust pipe 4 from the butterfly valve 9 and then be discharged from the smoke outlet 5. By using the first shell-and-tube heat exchanger 3, the second shell-and-tube heat exchanger 7, the third shell-and-tube heat exchanger 10, and the heat pipe heat exchanger 6, this device combines the heat pipe technology and the shell-and-tube heat exchange technology. By using the first guiding tube 8, the second guiding tube 13, and the third guiding tube 14 to adjust the air flow direction of the high-temperature flue gas, the fresh air is heated by the first shell-and-tube heat exchanger 3, the second shell-and-tube heat exchanger 7, and the third shell-and-tube heat exchanger 10 respectively before and after passing through the heat pipe, making full use of the waste heat in the high-temperature flue gas and improving the heat recovery efficiency. This device can not only meet the full utilization of waste heat resources, but also reduce the equipment volume and cost.

[0023] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An efficient combined heat pipe heat exchange device, comprising an air inlet (1), an air inlet pipe (2) and a first shell and tube heat exchanger (3), characterized in that: A air inlet pipe (2) is fixedly connected to the lower side of the air inlet (1). A first shell-and-tube heat exchanger (3) is fixedly connected to the right side of the air inlet pipe (2). A smoke exhaust pipe (4) is fixedly connected to the upper side of the first shell-and-tube heat exchanger (3). A smoke exhaust port (5) is fixedly connected to the upper side of the smoke exhaust pipe (4). A heat pipe heat exchanger (6) is fixedly connected to the right side of the first shell-and-tube heat exchanger (3). A second shell-and-tube heat exchanger (7) is fixedly connected to the upper right part of the heat pipe heat exchanger (6). A first guide pipe (8) is fixedly connected to the upper side of the second shell-and-tube heat exchanger (7). A butterfly valve (9) is fixedly connected to the left side of the first guide pipe (8). The left side of the butterfly valve (9) is fixedly connected to the smoke exhaust pipe (4). A third shell-and-tube heat exchanger (10) is fixedly connected to the lower right part of the first guide pipe (8). The lower left part of the third shell-and-tube heat exchanger (10) is fixedly connected to the second shell-and-tube heat exchanger (7). An air outlet pipe (11) is fixedly connected to the front side of the third shell-and-tube heat exchanger (10). A smoke inlet (12) is fixedly connected to the lower side of the third shell-and-tube heat exchanger (10). A second guide pipe (13) is fixedly connected to the lower side of the first shell-and-tube heat exchanger (3). The right side of the second guide pipe (13) is fixedly connected to the heat pipe heat exchanger (6). A third guide pipe (14) is fixedly connected to the lower side of the second shell-and-tube heat exchanger (7). The left side of the third guide pipe (14) is fixedly connected to the heat pipe heat exchanger (6). A bottom plate (15) is fixedly connected to the lower side of the heat pipe heat exchanger (6). The upper left part of the bottom plate (15) is fixedly connected to the second guide pipe (13). The upper right part of the bottom plate (15) is fixedly connected to the third guide pipe (14).

2. The high-efficiency combined heat pipe heat exchange device according to claim 1, wherein: The first shell-and-tube heat exchanger (3), the second shell-and-tube heat exchanger (7) and the third shell-and-tube heat exchanger (10) are each composed of a shell and a plurality of vertical tubes. Openings are provided on both the left and right sides of the shells of the first shell-and-tube heat exchanger (3) and the second shell-and-tube heat exchanger (7). Openings are provided on the left side and the front side of the shell of the third shell-and-tube heat exchanger (10).

3. The high-efficiency combined heat pipe heat exchange device according to claim 1, characterized in that: The opening on the left side of the shell of the first shell-and-tube heat exchanger (3) is in communication with the air inlet pipe (2). The opening on the right side of the shell of the first shell-and-tube heat exchanger (3) is in communication with the upper half of the heat pipe heat exchanger (6). The upper sides of the tubes of the first shell-and-tube heat exchanger (3) are all in communication with the smoke exhaust pipe (4). The lower sides of the tubes of the first shell-and-tube heat exchanger (3) are all in communication with the second guide pipe (13).

4. An efficient combined heat pipe heat exchange device according to claim 1, characterized in that: The left side of the shell of the second shell-and-tube heat exchanger (7) is in communication with the upper half of the heat pipe heat exchanger (6). The right side of the shell of the second shell-and-tube heat exchanger (7) is in communication with the left side of the shell of the third shell-and-tube heat exchanger (10). The upper sides of the tubes of the second shell-and-tube heat exchanger (7) are all in communication with the first guide pipe (8). The lower sides of the tubes of the second shell-and-tube heat exchanger (7) are all in communication with the third guide pipe (14).

5. The high-efficiency combined heat pipe heat exchange device according to claim 1, characterized in that: The front side of the housing of the third shell-and-tube heat exchanger (10) is in communication with the air outlet pipe (11), the upper sides of the tube bodies of the third shell-and-tube heat exchanger (10) are all in communication with the first guide pipe (8), and the lower sides of the tube bodies of the third shell-and-tube heat exchanger (10) are all in communication with the smoke inlet (12).

6. The efficient combined heat pipe heat exchange device according to claim 1, wherein: The heat pipe heat exchanger (6) is divided into upper and lower parts. The upper and lower parts of the heat pipe heat exchanger (6) are both provided with openings symmetrically distributed left and right. The left side of the lower half of the heat pipe heat exchanger (6) is in communication with the second guide pipe (13), and the right side of the lower half of the heat pipe heat exchanger (6) is in communication with the third guide pipe (14).

Images