A plate shell reboiler

Abstract

The utility model relates to a plate shell type reboiler, including reboiler casing and the heating plate bundle core in the reboiler casing, the inner wall of reboiler casing with between the heating plate bundle core forms the vaporization chamber, the vaporization chamber accounts for the reboiler casing interior space 40% or more, one end of heating plate bundle core is connected with the heat medium inlet and heat medium outlet of the heat medium outlet of going out reboiler casing, the upper portion of reboiler casing is connected with the cold -medium access. The utility model discloses through optimizing vaporization chamber volume ratio, solved the existing tube -shell type reboiler installation area, process flow complex, the problem of poor heat transfer efficiency, and the utility model provides plate shell type reboiler compact structure, effectively saved equipment cost and installation cost.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a plate and shell type reboiler. Background Technology

[0002] Plate and shell reboilers are commonly used heat exchange equipment in industrial production, which heats and vaporizes liquids to achieve vapor-liquid separation. However, existing shell and tube reboilers have significant drawbacks, such as: large installation footprint leading to low site utilization efficiency; complex process flow increasing operation difficulty and maintenance costs; and poor heat transfer efficiency affecting production efficiency and energy utilization, making it difficult to meet the industrial production demand for efficient and compact equipment. Summary of the Invention

[0003] This invention provides a plate-and-shell reboiler to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model provides a plate-shell reboiler, including a reboiler shell and a heating plate bundle located inside the reboiler shell. A vaporization chamber is formed between the inner wall of the reboiler shell and the heating plate bundle, and the vaporization chamber occupies more than 40% of the internal space of the reboiler shell. One end of the heating plate bundle is connected to a heat medium inlet and a heat medium outlet that extend out of the reboiler shell, and the upper part of the reboiler shell is connected to a cold medium inlet and outlet.

[0005] Preferably, the heating plate bundle is eccentrically placed inside the reboiler shell.

[0006] Preferably, the heating plate bundle core is placed lower than the central axis within the reboiler shell.

[0007] Preferably, the reboiler shell is connected to the fractionation tower to form a closed heat exchange cycle.

[0008] Preferably, the volume of the vaporization chamber occupies 40% to 50% of the internal space of the reboiler shell.

[0009] Preferably, the volume of the vaporization chamber occupies 45% of the internal space of the reboiler shell.

[0010] Preferably, the heating plate bundle is fixedly installed inside the reboiler housing.

[0011] Preferably, the heating plate bundle is detachably installed inside the reboiler housing.

[0012] Preferably, the side plate of the reboiler shell for passing through the heat medium inlet and heat medium outlet is detachably connected to the reboiler shell.

[0013] Preferably, the inner wall of the reboiler shell is provided with a track for the heating plate bundle core to slide in and out.

[0014] Compared with the prior art, the plate-shell reboiler provided by this utility model has the following advantages:

[0015] 1. This utility model significantly improves heat exchange and vaporization efficiency by optimizing the vaporization chamber volume ratio (over 40%) and the eccentric arrangement of the heating plate bundle core, thus solving the problem of poor heat transfer efficiency in traditional shell-and-tube reboilers.

[0016] 2. This utility model has a compact structure and simple design, which greatly reduces the installation area and site occupation costs, while simplifying the process and reducing the difficulty of operation.

[0017] 3. This utility model provides two structural forms for the heating plate core: fixed installation and detachable installation. These are respectively adapted to the high stability requirements under stable working conditions and the convenient maintenance requirements under complex working conditions, thus meeting the usage requirements of different industrial production scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the plate-and-shell reboiler in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the plate-and-shell reboiler in Embodiment 2 of this utility model (in working condition).

[0020] Figure 3 This is a schematic diagram of the plate-and-shell reboiler in Embodiment 2 of this utility model (in maintenance mode).

[0021] In the diagram: 10-Reboiler shell, 11-Refrigerant inlet / outlet, 12-Side plate, 13-Bolt, 20-Heating plate bundle, 21-Heat medium inlet, 22-Heat medium outlet, 30-Vaporization chamber. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Example 1

[0026] The plate-and-shell reboiler provided by this utility model, such as Figure 1 As shown, the device includes a reboiler shell 10 and a heating plate bundle 20 located inside the reboiler shell 10. A vaporization chamber 30 is formed between the inner wall of the reboiler shell 20 and the heating plate bundle 20. The vaporization chamber 30 occupies more than 40% of the internal space of the reboiler shell 10, providing sufficient space for the refrigerant to fully vaporize. One end of the heating plate bundle 20 is connected to a heat medium inlet 21 and a heat medium outlet 22 that extend out of the reboiler shell 10, facilitating the entry and exit of the heat medium. The upper part of the reboiler shell 10 is connected to a refrigerant inlet / outlet 11, realizing the entry of the refrigerant and the discharge of the vaporized medium. The working process of the plate-shell reboiler is as follows: the heat medium (such as high-temperature steam) enters the heating plate bundle core 20 from the heat medium inlet 21, and the cold medium (such as the industrial liquid to be vaporized) enters the vaporization chamber 30 from the cold medium outlet 11; the heat medium and the cold medium fully exchange heat through the plates of the heating plate bundle core 20, and the cold medium vaporizes after absorbing heat, and the vaporized medium is discharged from the cold medium outlet 11; after heat exchange, the heat medium flows out from the heat medium outlet 22, completing the heat exchange cycle.

[0027] This invention significantly improves heat exchange and vaporization efficiency by optimizing the volume ratio of the vaporization chamber 30 (above 40%), thus solving the problem of poor heat transfer efficiency in traditional shell-and-tube reboilers. Furthermore, this invention has a compact structure and simple design, which greatly reduces the installation footprint and lowers site occupancy costs.

[0028] In some embodiments, please refer to Figure 1The heating plate bundle 20 is eccentrically placed inside the reboiler shell 10 to further optimize the vaporization space distribution. Specifically, in this embodiment, the heating plate bundle 20 is placed lower than the central axis inside the reboiler shell 10, which better conforms to the refrigerant flow and vaporization laws and improves heat exchange efficiency.

[0029] In some embodiments, the reboiler shell 10 is connected to a fractionation tower (not shown), forming a stable heat exchange cycle with the fractionation tower through a pipeline, thereby ensuring production continuity and improving production efficiency.

[0030] In some embodiments, the volume of the vaporization chamber 30 occupies 40% to 50% of the internal space of the reboiler shell 10, a proportion that balances vaporization efficiency with equipment compactness. Preferably, the volume of the vaporization chamber 30 occupies 45% of the internal space of the reboiler shell 10, achieving an optimal balance between heat transfer and vaporization efficiency.

[0031] In some embodiments, the heating plate bundle 20 is fixedly installed inside the reboiler shell 10 by means of welding, which has strong structural stability and is suitable for scenarios where the operating conditions are stable and long-term maintenance is not required.

[0032] Example 2

[0033] Please refer to this carefully. Figure 2 and Figure 3 The difference between this embodiment and Embodiment 1 is that the heating plate bundle 20 is installed in the reboiler shell 10 in a detachable manner, which facilitates inspection and maintenance, and also allows for the replacement of the heating plate bundle 20.

[0034] In some embodiments, please refer to Figure 2 and Figure 3 The reboiler shell 10 has a side plate 12 that extends through the heat medium inlet 21 and heat medium outlet 22, which is detachably connected to the reboiler shell 10. For example, the installation and sealing of the entire shell can be achieved using bolts 13. Specifically, when the heating plate bundle 20 needs maintenance, first shut down the equipment, cut off the supply of heat and cold medium, remove the bolts 13 on the side plate 12, remove the side plate 12, and then the heating plate bundle 20 can be pulled out from the reboiler shell 10 to complete the maintenance.

[0035] In some embodiments, the inner wall of the reboiler shell 10 may also be provided with a track (not shown) for the heating plate bundle 20 to slide in and out. The detachable structure, through the detachable design of the side plate 12 and its cooperation with the track, makes the disassembly and installation of the heating plate bundle 20 simple and efficient, reducing maintenance costs and downtime.

[0036] In summary, the plate-and-shell reboiler provided by this utility model includes a reboiler shell 10 and a heating plate bundle 20 located within the reboiler shell 10. A vaporization chamber 30 is formed between the inner wall of the reboiler shell 20 and the heating plate bundle 20, and the vaporization chamber 30 occupies more than 40% of the internal space of the reboiler shell 10. One end of the heating plate bundle 20 is connected to a heat medium inlet 21 and a heat medium outlet 22 that extend out of the reboiler shell 10. A cold medium inlet / outlet 11 is connected to the upper part of the reboiler shell 10. This utility model significantly improves heat exchange and vaporization efficiency by optimizing the volume ratio of the vaporization chamber 30 (more than 40%), solving the problem of poor heat transfer efficiency in traditional shell-and-tube reboilers. Furthermore, this utility model has a compact structure and simple design, significantly reducing the installation footprint and lowering site occupancy costs.

[0037] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Therefore, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model also intends to include these modifications and variations.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plate-and-shell reboiler, characterized in that, The reboiler includes a reboiler shell and a heating plate bundle located inside the reboiler shell. A vaporization chamber is formed between the inner wall of the reboiler shell and the heating plate bundle, and the vaporization chamber occupies more than 40% of the internal space of the reboiler shell. One end of the heating plate bundle is connected to a heat medium inlet and a heat medium outlet that extend out of the reboiler shell, and the upper part of the reboiler shell is connected to a cold medium inlet and outlet.

2. The plate-and-shell reboiler as described in claim 1, characterized in that, The heating plate bundle is eccentrically placed inside the reboiler shell.

3. The plate-and-shell reboiler as described in claim 2, characterized in that, The heating plate bundle core is placed lower than the central axis inside the reboiler shell.

4. The plate-and-shell reboiler as described in claim 1, characterized in that, The reboiler shell is connected to the fractionation tower, forming a closed heat exchange cycle.

5. The plate-and-shell reboiler as described in claim 1, characterized in that, The volume of the vaporization chamber occupies 40% to 50% of the internal space of the reboiler shell.

6. The plate-and-shell reboiler as described in claim 5, characterized in that, The volume of the vaporization chamber occupies 45% of the internal space of the reboiler shell.

7. The plate-and-shell reboiler as described in claim 1, characterized in that, The heating plate bundle is fixedly installed inside the reboiler shell.

8. The plate-and-shell reboiler as described in claim 1, characterized in that, The heating plate bundle is detachably installed inside the reboiler housing.

9. The plate-and-shell reboiler as described in claim 8, characterized in that, The side plate of the reboiler shell through which the heat medium inlet and outlet are detachably connected to the reboiler shell.

10. The plate-and-shell reboiler as described in claim 9, characterized in that, The inner wall of the reboiler shell is provided with a track for the heating plate bundle core to slide in and out.

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