Steam waste heat recovery device for industrial energy conservation

Abstract

The utility model discloses an industrial energy-saving steam waste heat recovery device, which relates to the field of waste heat recovery, and comprises a shell, the shell is of a hollow structure, the top end and the bottom end of the shell are both of an open structure, and the top end opening and the bottom end opening of the shell are both provided with end heads through flanges. An upper input port is welded to the periphery of the upper end, a lower output port is welded to the periphery of the lower end, a heat exchange fluid output port is welded to the upper portion of the periphery of the shell, a heat exchange fluid inlet is welded to the lower portion of the periphery of the shell, and sealing plates are welded to the bottom end of the inner wall of the shell. A plurality of baffle plates are welded to the position, between the two sealing plates, of the inner wall of the shell, and the multiple baffle plates are vertically distributed at equal intervals in the vertical direction. By arranging the heat exchange mechanism with the support and the central column, high-temperature steam can flow downwards in a hollow column shape when flowing in the heat exchange pipe, and therefore the problem that the heat exchange efficiency is low due to the fact that heat exchange of the high-temperature steam located in the center of the heat exchange pipe is not timely under the transmission condition is solved.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery, specifically an industrial energy-saving steam waste heat recovery device. Background Technology

[0002] When high-temperature steam is present in industrial production, it can be introduced into a heat exchanger to exchange heat with the heat exchange fluid, thereby heating the lower-temperature heat exchange fluid for use as domestic water.

[0003] In the existing technology, shell and tube heat exchangers can be used for heat exchange. The heat exchange tubes of the existing shell and tube heat exchangers have a hollow structure. During the heat exchange process, the high-temperature steam located at the center of the heat exchange tube cannot be effectively heat exchanged due to untimely heat exchange, resulting in insufficient heat exchange efficiency and room for further improvement. Utility Model Content

[0004] The purpose of this utility model is to provide an industrial energy-saving steam waste heat recovery device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an industrial energy-saving steam waste heat recovery device, comprising a shell, the shell being hollow, with both the top and bottom ends being open, and end heads mounted on both the top and bottom openings of the shell via flanges; an upper inlet is welded to the outer periphery of the upper end head, and a lower outlet is welded to the outer periphery of the lower end head; a heat exchange fluid outlet is welded to the upper outer periphery of the shell, and a heat exchange fluid inlet is welded to the lower outer periphery of the shell; sealing plates are welded to the bottom and inner walls of the shell; multiple baffles are welded to the inner wall of the shell between two sealing plates; the multiple baffles are vertically equidistant in the vertical direction; a notch is opened on one side of the outer periphery of each baffle; the openings of the upper and lower baffles are staggered; and a heat exchange mechanism is installed inside each baffle.

[0006] As a further embodiment of this utility model: the heat exchange mechanism includes a heat exchange tube fixedly installed on the baffle plate, the top of the heat exchange tube penetrating into the interior of the upper sealing plate, the bottom end of the heat exchange tube penetrating into the interior of the lower sealing plate, the top of the heat exchange tube being flush with the top surface of the upper sealing plate, and the bottom end of the heat exchange tube being flush with the bottom surface of the lower sealing plate.

[0007] As a further embodiment of this utility model: the heat exchange mechanism further includes a plurality of supports welded to the inner wall of the heat exchange tube, the plurality of supports being vertically and equidistantly distributed on the inner wall of the heat exchange tube, and the inner circumference of the supports having a mating circular hole.

[0008] As a further embodiment of this utility model: the heat exchange mechanism further includes a central column welded to the inner circumference of the docking hole, and the top and bottom of the central column are integrally formed with a cone head.

[0009] As a further improvement of this utility model, the bracket has multiple through holes equidistantly spaced around the outer periphery of the central column.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up a heat exchange mechanism with a support and a central column, high-temperature steam can flow downward in a hollow column shape when flowing in the heat exchange tube, thereby avoiding the problem of low heat exchange efficiency caused by the high-temperature steam located at the center of the heat exchange tube due to untimely heat exchange under the transmission condition. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the heat exchange mechanism of this utility model.

[0015] In the diagram: 1. Outer shell; 2. End; 3. Upper inlet; 4. Lower outlet; 5. Heat exchange fluid inlet; 6. Heat exchange fluid outlet; 7. Sealing plate; 8. Baffle plate; 9. Heat exchange tube; 10. Support; 11. Through hole; 12. Central column; 13. Cone. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-3In this embodiment of the present invention, an industrial energy-saving steam waste heat recovery device includes a shell 1. The shell 1 has a hollow structure, and both the top and bottom ends of the shell 1 are open. Both the top and bottom openings of the shell 1 are fitted with end heads 2 via flanges. An upper inlet 3 is welded to the outer periphery of the upper end head 2, and a lower outlet 4 is welded to the outer periphery of the lower end head 2. A heat exchange fluid outlet 6 is welded to the upper outer periphery of the shell 1, and a heat exchange fluid inlet 5 is welded to the lower outer periphery of the shell 1. Both the bottom and bottom ends of the inner wall of the shell 1 are fitted with sealing plates 7. Multiple baffles 8 are welded to the inner wall of the shell 1 between the two sealing plates 7. The multiple baffles 8 are vertically equidistant in the vertical direction. A notch is opened on one side of the outer periphery of the baffles 8, and the openings of the upper and lower baffles 8 are staggered. A heat exchange mechanism is installed inside the baffles 8.

[0018] In this embodiment: First, during heat exchange, high-temperature steam enters the upper end 2 through the upper inlet 3, and then, blocked by the sealing plate 7, enters multiple heat exchange mechanisms. Simultaneously, the heat exchange fluid enters the interior of the outer shell 1 through the heat exchange fluid inlet 5, and flows in an "S" shaped trajectory under the obstruction of multiple baffles 8. The high-temperature steam flows downwards along the heat exchange mechanism, increasing the contact area between the heat exchange fluid and the high-temperature steam, thereby increasing the heat exchange efficiency. After heat exchange, the high-temperature steam cools and condenses into water, falling into the lower end 2. The water is then discharged outwards through the lower outlet 4. Meanwhile, the temperature of the heat exchange medium increases after heat exchange and is discharged outwards through the heat exchange fluid outlet 6. The high-temperature heat exchange fluid can be used for domestic purposes.

[0019] During the heat exchange process, high-temperature water vapor flows from top to bottom in the heat exchange mechanism, which can increase the heat exchange efficiency and further improve the heat exchange utilization rate.

[0020] Please refer to this carefully. Figure 2 and Figure 3 The heat exchange mechanism includes a heat exchange tube 9 fixedly installed on the baffle plate 8. The top of the heat exchange tube 9 extends into the interior of the upper sealing plate 7, and the bottom of the heat exchange tube 9 extends into the interior of the lower sealing plate 7. The top of the heat exchange tube 9 is flush with the top surface of the upper sealing plate 7, and the bottom of the heat exchange tube 9 is flush with the bottom surface of the lower sealing plate 7. The heat exchange mechanism also includes multiple supports 10 welded to the inner wall of the heat exchange tube 9. The multiple supports 10 are vertically and equidistantly distributed on the inner wall of the heat exchange tube 9. The inner circumference of the supports 10 has a connecting circular hole. The heat exchange mechanism also includes a central column 12 welded to the inner circumference of the connecting circular hole. The top and bottom of the central column 12 are integrally formed with a cone head 13.

[0021] In this embodiment: after the high-temperature steam enters the heat exchange tube 9, the high-temperature steam can only flow downward along the reinforcement between the heat exchange tube 9 and the central column 12. At this time, the flowing high-temperature steam is in the shape of a hollow column, which can better exchange heat with the heat exchange fluid through the heat exchange tube 9, avoiding the problem of untimely heat exchange of high-temperature steam at the center of the transmission heat exchange tube 9. In addition, the design of the cone head 13 can reduce the resistance to the entry of high-temperature steam. During the heat exchange process, the high-temperature steam flows downward through the through hole 11.

[0022] It should be noted that the central column 12 is made of ceramic material with low thermal conductivity, which can prevent the heat of high temperature water vapor from being absorbed by the central column 12.

[0023] Please refer to this carefully. Figure 3 The support 10 has multiple through holes 11 equidistantly spaced around the outer periphery of the central column 12.

[0024] In this embodiment, the design of the through hole 11 can provide a flow channel for the flowing high-temperature steam, avoiding the problem of flow obstruction.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An industrial energy-saving steam waste heat recovery device, comprising a shell (1), wherein the shell (1) is in a hollow structure, and the top end and the bottom end of the shell (1) are both in an open structure, characterized in that, The top and bottom ends of the shell (1) are provided with end heads (2) through flange mounting, the upper end head (2) is welded with an upper inlet (3) on the outer periphery, the lower end head (2) is welded with a lower outlet (4) on the outer periphery, the outer periphery of the shell (1) is welded with a heat exchange fluid outlet (6) on the top, the outer periphery of the shell (1) is welded with a heat exchange fluid inlet (5) on the bottom, the inner wall of the shell (1) is welded with a sealing plate (7) on the bottom, the inner wall of the shell (1) is welded with a plurality of baffle plates (8) between the two sealing plates (7), a plurality of baffle plates (8) are vertically equidistantly distributed in the vertical direction, the outer periphery of the baffle plate (8) is provided with a notch on one side, the openings of the upper and lower baffle plates (8) are staggered, and the baffle plate (8) is internally provided with a heat exchange mechanism.

2. The industrial steam waste heat recovery device for energy saving according to claim 1, characterized in that, The heat exchange mechanism comprises a heat exchange pipe (9) fixedly installed on the baffle plate (8), the top of the heat exchange pipe (9) penetrates into the inside of the upper sealing plate (7), the bottom end of the heat exchange pipe (9) penetrates into the inside of the lower sealing plate (7), the top end of the heat exchange pipe (9) is flush with the top end face of the upper sealing plate (7), and the bottom end of the heat exchange pipe (9) is flush with the bottom end face of the lower sealing plate (7).

3. The industrial steam waste heat recovery device for energy saving according to claim 2, characterized in that, The heat exchange mechanism further comprises a plurality of supports (10) welded to the inner wall of the heat exchange pipe (9), a plurality of supports (10) are vertically equidistantly distributed on the inner wall of the heat exchange pipe (9), and the inner periphery of the support (10) is provided with a butt round hole.

4. The industrial steam waste heat recovery device for energy saving according to claim 3, characterized in that, The heat exchange mechanism further comprises a center column (12) welded to the inner periphery of the butt round hole, and the top and bottom of the center column (12) are integrally formed with a tapered head (13).

5. The industrial steam waste heat recovery device for energy saving according to claim 4, characterized in that, A plurality of through holes (11) are circumferentially equidistantly arranged on the outer periphery of the center column (12) in the inside of the support (10).

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