Vertical pipe type high-temperature-resistant heat exchange device
By designing a vertical tube high-temperature heat exchanger, the problems of uneven heat exchange and severe deformation in horizontal heat exchangers were solved, achieving efficient and uniform heat exchange between high-temperature flue gas and exhaust gas, extending equipment life and supporting rapid installation.
Patent Information
- Application Number
- CN202411738236.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-01-07
AI Technical Summary
Existing horizontal heat exchangers suffer from uneven heat exchange and severe deformation of heat exchange tube thermal support components in high-temperature flue gas treatment. In particular, the top heat exchange efficiency is high, but the bottom efficiency is low, and the expansion joint is prone to tearing.
A vertical tube high-temperature heat exchanger is adopted, including a truss, heat exchange furnace body, support plate and ventilation beam structure. The flue gas conveying channel and waste gas output pipeline are designed. The expansion of the heat exchange tube is controlled by the support plate and limiting structure to achieve uniform heat exchange between high-temperature flue gas and waste gas.
It improves heat exchange efficiency, controls equipment deformation, extends service life, and supports modular processing and rapid installation.
Smart Images
Figure CN119267944A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to a vertical tube type high temperature resistant heat exchange device. Background Art
[0002] At present, in the field of copper foil production, heat recovery and utilization has become an important part of the industry development. In particular, for the exhaust gas combustion treatment system that mainly burns nitrogen oxides, the high-temperature flue gas (the flue gas temperature reaches above 800°C) generated after the exhaust gas is fully burned has been reheated. The untreated exhaust gas has become the mainstream solution of most manufacturers, which has also put forward higher requirements on the performance and reliability of the exhaust gas heat exchanger.
[0003] In the current industry, firstly, the heat exchange temperature at the top of the horizontal heat exchanger is relatively high, resulting in uneven heat exchange. In the high-temperature flue gas flow channel of the horizontal heat exchanger, the flue gas will gather at the top due to its low density, which results in a higher heat exchange efficiency at the top, but a lower heat exchange efficiency near the bottom, resulting in uneven temperature of the exhaust gas to be heated. Secondly, the thermal support components of the heat exchange tubes are greatly deformed, the deformation cannot be effectively controlled, and the expansion joints are severely torn. Since the high-temperature flue gas flows from front to back, the deformation is concentrated in the rear, so the expansion joints at the rear will be more severely torn, and a vertical tube-type high-temperature resistant heat exchange device is urgently needed to solve the above problems. Summary of the invention
[0004] In order to solve the above problems, the present invention provides a vertical tube type high temperature resistant heat exchange device, which is achieved through the following technical solutions.
[0005] A vertical tube type high temperature resistant heat exchange device, comprising a truss, and further comprising: A heat exchange furnace body, wherein a smoke exhaust channel is fixedly connected to the top of the heat exchange furnace body, an exhaust gas output pipeline is fixedly connected to one side of the heat exchange furnace body, ventilation beams are penetrated and connected to both ends of the heat exchange furnace body, a support plate is fixedly connected to the top of the ventilation beam, and a heat exchange tube is penetrated and connected between the two support plates; A smoke conveying channel is provided with a smoke conveying port and a waste discharge port.
[0006] Preferably, the two support plates are respectively fixed to two ends of the heat exchange furnace body, and the two support plates are parallel to each other.
[0007] Preferably, the heat exchange tubes are a plurality of heat exchange tubes in a rectangular array.
[0008] Preferably, two first cross beams and a second cross beam are fixedly connected to the truss, both ends of the first cross beam are fixedly connected to a first limit plate, and the second cross beam is fixedly connected to two second limit plates.
[0009] Preferably, the two ends of the ventilation beam extending out of the heat exchange furnace body are mounted on two first cross beams, and the two first limit plates are respectively limited and blocked on opposite sides of the two ventilation beams.
[0010] Preferably, front and rear sliding blocks are fixedly connected to the ventilation beam, one end of the front and rear sliding blocks extending out of the truss is mounted on the second cross beam, and the front and rear sliding blocks are located between the two second limiting plates.
[0011] Preferably, sealing sleeves are provided at both ends of the ventilation beam, the ventilation beam is sealed with the heat exchange furnace body through the sealing sleeves, and the sealing sleeves are welded to the inner wall of the heat exchange furnace body.
[0012] Preferably, the smoke conveying channel is located inside the truss, and the top end of the smoke conveying channel is connected to the bottom of the heat exchange furnace body.
[0013] Preferably, the waste discharge port is located below the smoke conveying port.
[0014] Preferably, a cover door is hinged at one end of the waste discharge outlet, and a handle is fixedly connected to the cover door.
[0015] The beneficial effects of the present invention are: 1. The flue gas conveying channel can vertically convey high-temperature flue gas to the inside of the heat exchange furnace body, and the heat exchange furnace body can horizontally convey exhaust gas, so that the high-temperature flue gas and exhaust gas can alternately and evenly exchange heat, thereby improving the efficiency of heat exchange.
[0016] 2. The heat exchange tubes are installed inside the heat exchange furnace body through two support plates. The ventilation beams can penetrate and support the support plates. At the same time, the first crossbeam and the second crossbeam installed on the truss can provide limited support for the ventilation beams, so that the heat exchange tubes that expand due to heat drive the support plates to expand. The support plates can move within the limited positions of the first crossbeam and the second crossbeam through the ventilation beams, thereby controlling the deformation of the equipment at high temperatures and improving the service life of the equipment.
[0017] 3. The heat exchange furnace body and the smoke conveying channel can be erected on the truss for fixation and connection, and the smoke exhaust channel and the exhaust gas output pipe can be connected to the heat exchange furnace body for connection, which can enable modular processing of the equipment and shorten the production and installation cycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 : Axonometric view of the vertical tube type high temperature resistant heat exchange device of the present invention; Figure 2 : A schematic diagram of the rear structure of the vertical tube type high temperature resistant heat exchange device of the present invention; Figure 3 : Schematic diagram of the connection structure of the heat exchange furnace body and the smoke conveying channel of the vertical tube type high temperature resistant heat exchange device of the present invention; Figure 4 : Figure 3 A partial enlarged view of point A shown; Figure 5 : A cross-sectional view of the vertical tube type high temperature resistant heat exchange device of the present invention; Figure 6 : Figure 5 A local enlarged view of point B is shown.
[0020] The reference numerals are as follows: 1. Truss; 11. First crossbeam; 111. First limit plate; 12. Second crossbeam; 121. Second limit plate; 2. Heat exchange furnace body; 21. Smoke exhaust channel; 22. Waste gas output pipeline; 3. Smoke conveying channel; 31. Smoke conveying port; 32. Waste discharge port; 321. Cover door; 4. Ventilation beam; 41. Sealing sleeve; 42. Front and rear slide blocks; 5. Support plate; 6. Heat exchange tubes. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] like Figure 1-6 As shown, the present invention has the following specific embodiments.
[0023] Example 1 A vertical tube type high temperature resistant heat exchange device comprises a frame 1 and also comprises: A heat exchange furnace body 2, a smoke exhaust channel 21 is fixedly connected to the top of the heat exchange furnace body 2, a waste gas output pipe 22 is fixedly connected to one side of the heat exchange furnace body 2, ventilation beams 4 are penetrated and connected at both ends of the heat exchange furnace body 2, a support plate 5 is fixedly connected to the top of the ventilation beam 4, and a heat exchange tube 6 is penetrated and connected between the two support plates 5; The smoke conveying channel 3 is provided with a smoke conveying port 31 and a waste discharge port 32 .
[0024] The two support plates 5 are respectively fixed to two ends of the heat exchange furnace body 2, and the two support plates 5 are parallel to each other.
[0025] The heat exchange tubes 6 are a plurality of heat exchange tubes in a rectangular array.
[0026] In this embodiment, Figure 1 and 5 As shown, first, a plurality of heat exchange tubes 6 are provided that can be connected through the two support plates 5. Since the support plates 5 are fixedly connected to the ventilation beams 4, and the ventilation beams 4 are connected through the heat exchange furnace body 2, the plurality of heat exchange tubes 6 can be supported inside the heat exchange furnace body 2, and the heat exchange furnace body 2 is erected on the first crossbeam 11 and the second crossbeam 12 through the ventilation beams 4, and then the smoke conveying channel 3 is provided inside the truss 1, and the smoke conveying channel 3 is placed under the heat exchange furnace body 2 and interconnected, so that the smoke conveying channel 3 can vertically convey high-temperature smoke to the inside of the heat exchange furnace body 2, so that the high-temperature smoke passes through the inside of the heat exchange furnace body 2 for heat exchange, and the smoke exhaust channel 21 provided on the heat exchange furnace body 2 can output high-temperature smoke, and the exhaust gas output pipe 22 can output exhaust gas.
[0027] Example 2 Two first cross beams 11 and second cross beams 12 are fixedly connected to the truss 1, both ends of the first cross beam 11 are fixedly connected to first limit plates 111, and two second limit plates 121 are fixedly connected to the second cross beam 12; The two ends of the ventilation beam 4 extending out of the heat exchange furnace body 2 are mounted on the two first cross beams 11, and the two first limit plates 111 are respectively limited and blocked on the opposite sides of the two ventilation beams 4; The ventilation beam 4 is fixedly connected with a front and rear slider 42. One end of the front and rear slider 42 extending out of the truss 1 is mounted on the second crossbeam 12, and the front and rear slider 42 is located between the two second limit plates 121. Sealing sleeves 41 are provided at both ends of the ventilation beam 4 , and the ventilation beam 4 is sealed with the heat exchange furnace body 2 through the sealing sleeves 41 , and the sealing sleeves 41 are welded to the inner wall of the heat exchange furnace body 2 .
[0028] In this embodiment, Figure 3 , 4As shown in , 5 and 6, a plurality of heat exchange tubes 6 can be installed through two support plates 5, so that the exhaust gas horizontally input into the heat exchange furnace body 2 can be transported through the plurality of heat exchange tubes 6, and because the support plate 5 is fixedly connected to the ventilation beam 4, and the ventilation beam 4 is connected through the heat exchange furnace body 2, when the heat exchange tube 6 is heated and expanded, the support plate 5 can follow the ventilation beam 4 to move forward and backward on the first cross beam 11, and the first limit plate 111 provided on the first cross beam 11 can limit the movable ventilation beam 4, and at the same time, the front and rear sliders 42 connected to the ventilation beam 4 can move left and right on the second cross beam 12, and the second limit plate 121 provided on the second cross beam 12 can limit the movable front and rear sliders 42, so that when the support plate 5 is heated and expanded, the heat exchange tube 6 can always be kept at the center position inside the heat exchange furnace body 2 for movement; The sealing sleeve 41 on the ventilation beam 4 can seal the ventilation beam 4 and the heat exchange furnace body 2, thereby preventing the high-temperature flue gas inside the heat exchange furnace body 2 from escaping.
[0029] Example 3 The smoke conveying channel 3 is located inside the truss 1, and the top of the smoke conveying channel 3 is connected to the bottom of the heat exchange furnace body 2; The waste discharge port 32 is located below the smoke delivery port 31; A cover door 321 is hinged at one end of the waste discharge port 32 , and a handle is fixedly connected to the cover door 321 .
[0030] In this embodiment, Figure 2 and 4 As shown, the smoke conveying channel 3 is capable of vertically inputting high-temperature smoke into the heat exchange furnace body 2, that is, the smoke conveying channel 3 inputs high-temperature smoke through the smoke conveying port 31, and the high-temperature smoke is input from the bottom of the heat exchange furnace body 2, wherein the waste discharge port 32 opened on the smoke conveying channel 3 is located below the smoke conveying port 31, and can discharge the waste in the high-temperature smoke. At the same time, the cover door 321 set on the waste discharge port 32 can close and open it, so that it is closed when conveying high-temperature smoke and opened when discharging waste.
[0031] The overall working principle of the present invention is as follows: First, the set flue gas conveying channel 3 can input high-temperature flue gas through the flue gas conveying port 31. Since the flue gas conveying channel 3 is connected to the bottom of the heat exchange furnace body 2, the high-temperature flue gas enters the bottom of the heat exchange furnace body 2. At the same time, the exhaust gas is input through one end of the heat exchange furnace body 2. The input exhaust gas can be evenly transported through several support plates 5, so that the exhaust gas and high-temperature flue gas can be transported simultaneously in the heat exchange tube 6 for heat exchange. The exhaust gas after heat exchange is discharged through the exhaust gas output pipe 22, and the smoke after heat exchange is discharged through the smoke exhaust channel 21, thereby facilitating efficient heat exchange.
[0032] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A vertical tube type high temperature resistant heat exchange device, comprising a truss (1), characterized in that: Also includes: A heat exchange furnace body (2), wherein a smoke exhaust passage (21) is fixedly connected to the top of the heat exchange furnace body (2), a waste gas output pipe (22) is fixedly connected to one side of the heat exchange furnace body (2), ventilation beams (4) are penetrated and connected to both ends of the interior of the heat exchange furnace body (2), a support plate (5) is fixedly connected to the top of the ventilation beam (4), and a heat exchange pipe (6) is penetrated and connected between the two support plates (5); A smoke conveying channel (3) is provided with a smoke conveying port (31) and a waste discharge port (32).
2. The vertical tube type high temperature resistant heat exchange device according to claim 1, characterized in that: The two support plates (5) are respectively fixed to two ends of the interior of the heat exchange furnace body (2), and the two support plates (5) are parallel to each other.
3. The vertical tube type high temperature resistant heat exchange device according to claim 2, characterized in that: The heat exchange tubes (6) are a plurality of heat exchange tubes in a rectangular array.
4. The vertical tube type high temperature resistant heat exchange device according to claim 3, characterized in that: Two first crossbeams (11) and a second crossbeam (12) are fixedly connected to the truss (1), both ends of the first crossbeam (11) are fixedly connected to first limit plates (111), and the second crossbeam (12) is fixedly connected to two second limit plates (121).
5. The vertical tube type high temperature resistant heat exchange device according to claim 4, characterized in that: The two ends of the ventilation beam (4) extending out of the heat exchange furnace body (2) are mounted on two first cross beams (11), and the two first limit plates (111) are respectively limited and blocked on opposite sides of the two ventilation beams (4).
6. The vertical tube type high temperature resistant heat exchange device according to claim 5, characterized in that: The ventilation beam (4) is fixedly connected with a front and rear slider (42); one end of the front and rear slider (42) extending out of the truss (1) is mounted on the second crossbeam (12); and the front and rear slider (42) is located between two second limit plates (121).
7. The vertical tube type high temperature resistant heat exchange device according to claim 6, characterized in that: Both ends of the ventilation beam (4) are provided with sealing sleeves (41), the ventilation beam (4) is sealed with the heat exchange furnace body (2) through the sealing sleeves (41), and the sealing sleeves (41) are welded to the inner wall of the heat exchange furnace body (2).
8. The vertical tube type high temperature resistant heat exchange device according to claim 1, characterized in that: The smoke conveying channel (3) is located inside the truss (1), and the top end of the smoke conveying channel (3) is connected to the bottom of the heat exchange furnace body (2).
9. The vertical tube type high temperature resistant heat exchange device according to claim 1, characterized in that: The waste discharge port (32) is located below the smoke delivery port (31).
10. The vertical tube type high temperature resistant heat exchange device according to claim 9, characterized in that: A cover door (321) is hingedly connected to one end of the waste discharge outlet (32), and a handle is fixedly connected to the cover door (321).