Vertical heat exchanger
By setting the first tube bundle and the second tube bundle in the heat exchanger case and forming a transition zone between the two, the support plate is used to reduce the vibration of the tube bundle, the vibration and damage of the heat exchange tube caused by the flow of high-temperature gas in the traditional heat exchanger is solved, and the heat exchange efficiency is improved.
Patent Information
- Application Number
- CN202420498982.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-14
AI Technical Summary
In traditional heat exchangers, high-temperature gases can easily cause vibration and damage to the heat exchange tube when flowing, affecting the heat exchange effect.
A vertical heat exchanger is designed to reduce vibration of the tube bundle when the gas flows by providing the first tube bundle and the second tube bundle in the housing and forming a transition zone between the two.
The vibration phenomenon of the first tube bundle and the second tube bundle when the gas flows is effectively reduced, damage to the heat exchange tube is avoided, and the heat exchange efficiency is improved.
Smart Images
Figure CN222688908U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, in particular to a vertical heat exchanger. Background Art
[0002] Heat exchangers are devices that transfer part of the heat of hot fluid to cold fluid, so that the fluid temperature reaches the specified index of the process flow. They are also called heat exchangers. There are many types of heat exchangers, but they can be basically divided into three categories according to the principle and method of heat exchange between cold and hot fluids: partition type, hybrid type and heat storage type. Heat exchangers are common equipment in chemical, petroleum, power, food and many other industrial sectors, and they play an important role in production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are more widely used.
[0003] A traditional heat exchanger usually includes a shell and a heat exchange tube arranged in the shell. When in use, the high-temperature gas to be heat exchanged is passed into the shell, and cooling water is passed into the heat exchange tube, so as to achieve heat exchange between cooling water and gas. However, the heat exchange tubes in the traditional heat exchanger are arranged relatively densely. Due to the large flow rate and fast flow rate of the high-temperature gas, the heat exchange tubes are prone to vibration and damage when the high-temperature gas flows, thereby affecting the heat exchange. In view of this, the inventors conducted in-depth research on the above-mentioned defects in the prior art, and thus the present case was created. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the utility model aims to provide a vertical heat exchanger, which comprises a first tube bundle and a second tube bundle arranged in a shell, the first tube bundle and the second tube bundle are connected together by a connecting pipe, a transition zone is formed between the second tube bundle and the first tube bundle, and a support plate for supporting the first tube bundle and the second tube bundle is arranged in the shell, thereby reducing the vibration of the first tube bundle and the second tube bundle when the gas flows, and not easily causing damage to the heat exchange tubes.
[0005] To achieve the above object, the utility model proposes a vertical heat exchanger, comprising a shell, a first tube bundle, a second tube bundle, a connecting tube and a support plate;
[0006] An input port is arranged at the upper end of the shell, and an output port is arranged at the lower end of the shell. The first tube bundle is arranged in the shell, a first inlet is arranged at one end of the first tube bundle, and a first outlet is arranged at the other end of the first tube bundle; the second tube bundle is arranged in the shell and is located above the first tube bundle, a transition zone is formed between the second tube bundle and the first tube bundle, a second inlet is arranged at one end of the second tube bundle, and a second outlet is arranged at the other end of the second tube bundle; one end of the connecting pipe is connected to the first outlet, and the other end of the connecting pipe is connected to the second inlet; the support plate is arranged in the shell, the support plate is provided with a first through hole for the first tube bundle to pass through, and the support plate is provided with a second through hole for the second tube bundle to pass through.
[0007] Furthermore, a low-temperature section branch pipe box is provided at the side of the shell, and the low-temperature section branch pipe box includes a first connecting pipe and a second connecting pipe, the first connecting pipe is connected to the first inlet, and the second connecting pipe is connected to the first outlet.
[0008] Furthermore, a high temperature section branch pipe box is provided at the side of the shell, and the high temperature section branch pipe box includes a third pipe and a fourth pipe, the third pipe is connected to the second inlet, and the fourth pipe is connected to the second outlet.
[0009] Furthermore, one end of the connecting pipe is connected to the second connecting pipe, and the other end of the connecting pipe is connected to the third connecting pipe.
[0010] Furthermore, a low temperature section return pipe box is provided on the other side of the shell, and the low temperature section return pipe box is connected to the first tube bundle; a high temperature section return pipe box is also provided on the other side of the shell, and the high temperature section return pipe box is connected to the second tube bundle.
[0011] Furthermore, the shell includes an inlet pipe box, a middle pipe box and an outlet pipe box; the upper part of the inlet pipe box forms an input port; the upper end of the middle pipe box is connected to the inlet pipe box, and the first tube bundle and the second tube bundle are arranged in the middle pipe box; the lower part of the outlet pipe box forms an output port, and the outlet pipe box is connected to the lower end of the middle pipe box.
[0012] Furthermore, the inlet pipe box is provided with a guide plate, the guide plate includes a horizontal guide plate and an inclined guide plate, a plurality of first guide holes are provided on the horizontal guide plate, the inclined guide plate is connected to the edge of the horizontal guide plate, and a plurality of second guide holes are provided on the inclined guide plate.
[0013] Furthermore, the angle formed by the inclined guide plate and the horizontal guide plate along the longitudinal section is an obtuse angle.
[0014] Furthermore, the guide plate further comprises an inner connecting plate, which is arranged on the inner wall of the inlet pipe box and connected to the edge of the inclined guide plate.
[0015] After adopting the above structure, the vertical heat exchanger involved in the utility model has at least the following beneficial effects:
[0016] When in use, cooling water is input into the first tube bundle from the first inlet, and the cooling water flows from the first outlet to the connecting pipe after passing through the first tube bundle, and then enters the second tube bundle from the second inlet, and finally outputs from the second outlet. At the same time, high-temperature gas is input into the shell from the input port, and the high-temperature gas first passes through the second tube bundle for preliminary heat exchange, then passes through the transition zone, and then passes through the first tube bundle for secondary heat exchange, and finally outputs from the output port. Since a transition zone is formed between the second tube bundle and the first tube bundle, and the support plate is provided with a first perforation for the first tube bundle to pass through, and the support plate is provided with a second perforation for the second tube bundle to pass through, the second tube bundle and the first tube bundle both include a plurality of heat exchange tubes. When installing the first tube bundle and the second tube bundle, the first tube bundle is passed through the first perforation, and the second tube bundle is passed through the second perforation, so that when the high-temperature gas flows, the vibration phenomenon of the first tube bundle and the second tube bundle during gas flow is reduced, and it is not easy to cause damage to the heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a vertical heat exchanger according to an embodiment of the utility model;
[0018] Figure 2 It is a structural schematic diagram of a vertical heat exchanger according to an embodiment of the utility model from another angle;
[0019] Figure 3 It is a structural schematic diagram of a support plate according to an embodiment of the utility model;
[0020] Figure 4 It is a structural schematic diagram of a low temperature section branch box according to an embodiment of the utility model;
[0021] Figure 5 It is a structural schematic diagram of the low temperature section branch box from another angle according to an embodiment of the utility model;
[0022] Figure 6 It is a structural schematic diagram of a high temperature section branch box according to an embodiment of the utility model;
[0023] Figure 7 It is a structural schematic diagram of the high temperature section branch box according to another angle of the embodiment of the utility model;
[0024] Figure 8 It is a schematic diagram of the connection between the inlet pipe box and the guide plate according to an embodiment of the utility model.
[0025] Description of symbols
[0026] Shell 1, input port 11, output port 12, low-temperature section branch box 13, first connecting pipe 131, second connecting pipe 132, high-temperature section branch box 14, third connecting pipe 141, fourth connecting pipe 142, inlet pipe box 15, guide plate 151, horizontal guide plate 1511, inclined guide plate 1512, inner connecting plate 1513, middle pipe box 16, outlet pipe box 17, first tube bundle 2, second tube bundle 3, connecting pipe 4, support plate 5, first through hole 51, second through hole 52, transition zone 6. DETAILED DESCRIPTION
[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0028] like Figures 1 to 8 As shown, a vertical heat exchanger of the utility model comprises a shell 1, a first tube bundle 2, a second tube bundle 3, a connecting pipe 4 and a supporting plate 5; an input port 11 is arranged at the upper end of the shell 1, an output port 12 is arranged at the lower end of the shell 1, the first tube bundle 2 is arranged in the shell 1, a first inlet is arranged at one end of the first tube bundle 2, and a first outlet is arranged at the other end of the first tube bundle 2; the second tube bundle 3 is arranged in the shell 1 and is located above the first tube bundle 2, a transition zone 6 is formed between the second tube bundle 3 and the first tube bundle 2, a second inlet is arranged at one end of the second tube bundle 3, and a second outlet is arranged at the other end of the second tube bundle 3; one end of the connecting pipe 4 is connected to the first outlet, and the other end of the connecting pipe 4 is connected to the second inlet; the supporting plate 5 is arranged in the shell 1, the supporting plate 5 is provided with a first through hole 51 for the first tube bundle 2 to pass through, and the supporting plate 5 is provided with a second through hole 52 for the second tube bundle 3 to pass through.
[0029] Thus, in the vertical heat exchanger of the utility model, when in use, cooling water is inputted into the first tube bundle 2 from the first inlet, the cooling water flows from the first outlet to the connecting pipe 4 after passing through the first tube bundle 2, then enters the second tube bundle 3 from the second inlet, and finally is outputted from the second outlet. At the same time, high-temperature gas is inputted into the shell 1 from the input port 11, the high-temperature gas first passes through the second tube bundle 3 for preliminary heat exchange, then passes through the transition zone 6, then passes through the first tube bundle 2 for secondary heat exchange, and finally is outputted from the output port 12. Since a transition zone 6 is formed between the second tube bundle 3 and the first tube bundle 2, and the support plate 5 is provided with a first through hole 51 for the first tube bundle 2 to pass through, and the support plate 5 is provided with a second through hole 52 for the second tube bundle 3 to pass through, the second tube bundle 3 and the first tube bundle 2 both include a plurality of heat exchange tubes. When installing the first tube bundle 2 and the second tube bundle 3, the first tube bundle 2 is passed through the first through hole 51, and the second tube bundle 3 is passed through the second through hole 52, so that when the high-temperature gas flows, the vibration of the first tube bundle 2 and the second tube bundle 3 is reduced during the gas flow, and it is not easy to cause damage to the heat exchange tubes.
[0030] By setting the transition zone 6, a certain distance is provided between the second tube bundle 3 and the first tube bundle 2, so that the gas first passes through the second tube bundle 3 for the first heat exchange, then passes through the transition zone 6, and finally passes through the second tube bundle 3 for the second heat exchange. The temperature of the water in the second tube bundle 3 is greater than the temperature of the water in the first tube bundle 2, and the heat exchange effect is good.
[0031] Optionally, a low temperature section branch box 13 is provided at the side of the shell 1, and the low temperature section branch box 13 includes a first pipe 131 and a second pipe 132, the first pipe 131 is connected to the first inlet, and the second pipe 132 is connected to the first outlet. A high temperature section branch box 14 is provided at the side of the shell 1, and the high temperature section branch box 14 includes a third pipe 141 and a fourth pipe 142, the third pipe 141 is connected to the second inlet, and the fourth pipe 142 is connected to the second outlet.
[0032] By providing the first connecting pipe 131 and the second connecting pipe 132 , when in use, cooling water can be input into the first tube bundle 2 from the first inlet through the first connecting pipe 131 , then transported to the connecting pipe 4 through the second connecting pipe 132 , finally input into the second tube bundle 3 from the second inlet through the third connecting pipe 141 , and finally output from the fourth connecting pipe 142 .
[0033] In this example, one end of the connecting pipe 4 is connected to the second connecting pipe 132, and the other end of the connecting pipe 4 is connected to the third connecting pipe 141, so that the first tube bundle 2 and the second tube bundle 3 are connected, so that the water in the first tube bundle 2 can be smoothly transported to the second tube bundle 3. A low-temperature section return pipe box is arranged on the other side of the shell 1, and the low-temperature section return pipe box is connected to the first tube bundle 2; a high-temperature section return pipe box is also arranged on the other side of the shell 1, and the high-temperature section return pipe box is connected to the second tube bundle 3.
[0034] In some examples, the shell 1 includes an inlet pipe box 15, a middle pipe box 16 and an outlet pipe box 17; an input port 11 is formed at the upper portion of the inlet pipe box 15; the upper end of the middle pipe box 16 is connected to the inlet pipe box 15, and the first tube bundle 2 and the second tube bundle 3 are arranged in the middle pipe box 16; an output port 12 is formed at the lower portion of the outlet pipe box 17, and the outlet pipe box 17 is connected to the lower end of the middle pipe box 16.
[0035] The high-temperature gas is input through the input port 11, undergoes the first heat exchange through the second tube bundle 3 of the middle tube box 16, passes through the transition zone 6, and then undergoes the second heat exchange with the first tube bundle 2, and finally is output from the output port 12. The inlet tube box 15 and the outlet tube box 17 may be roughly conical to facilitate the diffusion of the high-temperature gas.
[0036] Specifically, the inlet pipe box 15 is provided with a guide plate 151, which includes a horizontal guide plate 1511 and an inclined guide plate 1512. The horizontal guide plate 1511 is provided with a plurality of first guide holes. The inclined guide plate 1512 is connected to the edge of the horizontal guide plate 1511 and is provided with a plurality of second guide holes.
[0037] By setting the horizontal guide plate 1511 and the inclined guide plate 1512, when the high-temperature gas enters the box from the input port 11, the high-temperature gas impacts the horizontal guide plate 1511, and a part of the high-temperature gas enters the box along the first guide hole on the horizontal guide plate 1511, and the other part of the high-temperature gas is dispersed by the horizontal guide plate 1511, moves along the horizontal guide plate 1511 to the inclined guide plate 1512, and then enters the box through the second guide hole of the inclined guide plate 1512. In this way, the high-temperature gas can fully and quickly cover the entire box, so that the heat exchange effect is better.
[0038] In this example, the angle formed by the inclined guide plate 1512 and the horizontal guide plate 1511 along the longitudinal section is angle A, and angle A is an obtuse angle. After the high-temperature gas impacts the horizontal guide plate 1511, part of the high-temperature gas moves along the horizontal guide plate 1511 to the inclined guide plate 1512. Since angle A is an obtuse angle, this part of the high-temperature gas can easily enter the box through the second guide hole.
[0039] Further, the guide plate 151 also includes an inner connecting plate 1513, which is arranged on the inner wall of the inlet pipe box 15, and is connected to the edge of the inclined guide plate 1512. The inner connecting plate 1513 can be attached to the inner wall of the inlet pipe box 15, so that the installation of the guide plate 151 can be completed quickly. After the guide plate 151 is installed, the guide plate 151 is not easy to shake. The angle formed by the inner connecting plate 1513 and the inclined guide plate 1512 along the longitudinal section is angle B, and angle B is 90 degrees, so that when the high-temperature gas enters the box along the second guide hole, the flow direction of the high-temperature gas is roughly parallel to the inner wall of the inlet pipe box 15, so that the gas can quickly cover the entire box.
[0040] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.
Claims
1. A vertical heat exchanger, characterized in that: It includes a shell, a first tube bundle, a second tube bundle, a connecting tube and a support plate; The upper end of the shell is provided with an input port, the lower end of the shell is provided with an output port, the first tube bundle is provided in the shell, one end of the first tube bundle is provided with a first inlet, and the other end of the first tube bundle is provided with a first outlet; The second tube bundle is arranged in the shell and is located above the first tube bundle. A transition zone is formed between the second tube bundle and the first tube bundle. A second inlet is arranged at one end of the second tube bundle, and a second outlet is arranged at the other end of the second tube bundle. One end of the connecting pipe is connected to the first outlet, and the other end of the connecting pipe is connected to the second inlet. The support plate is arranged in the shell. The support plate is provided with a first through hole for the first tube bundle to pass through, and the support plate is provided with a second through hole for the second tube bundle to pass through.
2. The vertical heat exchanger according to claim 1, characterized in that: A low-temperature section branch pipe box is arranged at the side of the shell, and the low-temperature section branch pipe box comprises a first connecting pipe and a second connecting pipe, wherein the first connecting pipe is communicated with the first inlet, and the second connecting pipe is communicated with the first outlet.
3. The vertical heat exchanger according to claim 2, characterized in that: A high temperature section branch pipe box is arranged on the side of the shell, and the high temperature section branch pipe box includes a third pipe and a fourth pipe, the third pipe is communicated with the second inlet, and the fourth pipe is communicated with the second outlet.
4. The vertical heat exchanger according to claim 3, characterized in that: One end of the connecting pipe is connected to the second connecting pipe, and the other end of the connecting pipe is connected to the third connecting pipe.
5. The vertical heat exchanger according to claim 1, characterized in that: The shell includes an inlet pipe box, a middle pipe box and an outlet pipe box; the upper part of the inlet pipe box forms an input port; the upper end of the middle pipe box is connected to the inlet pipe box, and the first tube bundle and the second tube bundle are arranged in the middle pipe box; the lower part of the outlet pipe box forms an output port, and the outlet pipe box is connected to the lower end of the middle pipe box.
6. The vertical heat exchanger according to claim 5, characterized in that: The inlet pipe box is provided with a guide plate, which includes a horizontal guide plate and an inclined guide plate. A plurality of first guide holes are provided on the horizontal guide plate. The inclined guide plate is connected to the edge of the horizontal guide plate. A plurality of second guide holes are provided on the inclined guide plate.
7. The vertical heat exchanger according to claim 6, characterized in that: The angle formed by the inclined guide plate and the horizontal guide plate along the longitudinal section is an obtuse angle.
8. The vertical heat exchanger according to claim 6, characterized in that: The guide plate further comprises an inner connecting plate, which is arranged on the inner wall of the inlet pipe box and connected to the edge of the inclined guide plate.