Multi-cavity vertical heat exchange device

Abstract

The utility model discloses a multi-cavity vertical heat exchange device, which is used for solving the technical problems of single medium type and low heat exchange efficiency, belongs to the technical field of heat exchangers, and comprises two tube pass sections, n + 1 shell pass sections, n tube plates larger than or equal to 1, a skirt, a first tube plate and a sixth tube plate, the tube pass sections are connected with the first tube plate and the sixth tube plate at the upper end and the lower end of the vertical heat exchange device respectively, and the tube plates and the shell pass sections are alternately connected between the tube pass sections. According to the multi-cavity heat exchanger, multi-cavity heat exchange is achieved through the combination of the multiple tube plates, the tube pass sections and the shell pass sections, different medium fluids can be selected for each cavity, and the heat exchange efficiency among the multi-medium fluids is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and particularly relates to a multi-cavity vertical heat exchange device. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a fluid with a higher temperature to a fluid with a lower temperature so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also the main equipment for improving energy utilization. However, ordinary heat exchangers have only one shell cavity, the medium type is relatively single, and the heat exchange efficiency is low. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a multi-cavity vertical heat exchange device, which realizes multi-cavity heat exchange by combining multiple tube sheets and cylinder sections. Different medium fluids can be selected for each cavity to improve the heat exchange efficiency between multiple medium fluids.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A multi-cavity vertical heat exchange device comprises a first tube-pass section, a second tube-pass section, n+1 shell-pass sections, n≥1 tube sheets, a first tube sheet, a sixth tube sheet and a skirt seat.

[0006] An inlet pipe N1 is provided on one side of the first tube-side section, and the lower side of the first tube-side section is connected to the first shell-side section, and the lower side of the first shell-side section is connected to the second shell-side section, and so on, until it is connected to the n+1th shell-side section, and the lower side of the n+1th shell-side section is connected to the second tube-side section, and an outlet pipe N10 is provided on the lower side of the second tube-side section, and the second tube-side section is fixed on the skirt, and the first shell-side section and the n+1th shell-side section are provided with inlet and outlet pipes on both sides.

[0007] A first tube sheet is horizontally fixed at the connection between the first tube section and the first shell section, a tube sheet is horizontally fixed at the connection between adjacent shell sections, a sixth tube sheet is horizontally fixed at the connection between the n+1th shell section and the second tube section, the diameters of the first tube sheet, the sixth tube sheet and the tube sheet are equal to the diameters of the corresponding connections, and heat exchange tubes penetrate between the first tube sheet and the first tube sheet, and between the nth tube sheet and the sixth tube sheet.

[0008] When n≥2, heat exchange tubes are passed through adjacent tube sheets or the shell sections between adjacent tube sheets are passed through inner extension pipes. In case heat exchange tubes are passed through between the tube sheets, inlet and outlet pipes are arranged on both sides of the shell section connecting the tube sheets.

[0009] During application, each inlet pipe and inner extension pipe can select different medium fluids for heat exchange.

[0010] Further preferably, the internal extending pipe includes an internal extending pipe N4 and an internal extending pipe N7. When n=4, the number of shell-side sections is 5, the number of tube sheets is 4, the second shell-side section passes through the internal extending pipe N4, the fourth shell-side section passes through the internal extending pipe N7, a heat exchange tube passes between the second tube sheet and the third tube sheet, and the third shell-side section is provided with inlet and outlet pipes on both sides.

[0011] Further preferably, a turbulator is provided inside the inner extending pipe, which can slow down the flow speed of the medium inside the inner extending pipe, increase the contact time with the heat exchange medium, and improve the heat exchange efficiency.

[0012] Compared with the prior art, the utility model has the following technical effects: realizing simultaneous heat exchange between multiple medium fluids, thereby greatly improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 The utility model is represented by a schematic diagram of the structure.

[0016] Figure 2 A schematic diagram showing the internal structure of the inner extension pipes N4 and N7.

[0017] In the figure: 1-first tube section, 2-first tube sheet, 3-first shell section, 4-second tube sheet, 5-second shell section, 6-third tube sheet, 7-third shell section, 8-fourth tube sheet, 9-fourth shell section, 10-fifth tube sheet, 11-fifth shell section, 12-sixth tube sheet, 13-second tube section, 14-skirt, 15-heat exchange tube, 16-turbulator, 1701-inlet pipe N1, 1702-inlet pipe N2, 1703-outlet pipe N3, 1704-inner extension pipe N4, 1705-inlet pipe N5, 1706-outlet pipe N6, 1707-inner extension pipe N7, 1708-inlet pipe N8, 1709-outlet pipe N9, 1710-outlet pipe N10. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0022] Embodiment 1, when n=1:

[0023] A multi-cavity vertical heat exchange device comprises a first tube-side section 1, a second tube-side section 13, a first shell-side section, a second shell-side section, a first tube sheet, a first tube sheet 2, a sixth tube sheet 12 and a skirt seat 14.

[0024] An inlet pipe N11701 is provided on one side of the first tube-side section 1. The lower side of the first tube-side section 1 is connected to the shell-side section, and a first tube sheet 2 is horizontally fixed at the connection. The lower side of the shell-side section is connected to the second tube-side section 13, and a sixth tube sheet 12 is horizontally fixed at the connection. The first tube sheet is horizontally fixed in the middle of the shell-side section to divide the shell-side section into the first shell-side section and the second shell-side section. The second tube-side section 13 is fixed on the skirt 14, and an outlet pipe N101710 is provided on the lower side of the second tube-side section 13.

[0025] A heat exchange tube 15 is provided between the first tube sheet 2 and the first tube sheet, and a heat exchange tube 15 is provided between the first tube sheet and the sixth tube sheet 12 .

[0026] The first shell section is provided with an inlet pipe on one side and an outlet pipe on the other side; the second shell section is provided with an inlet pipe on one side and an outlet pipe on the other side.

[0027] The multi-cavity vertical heat exchange device of this embodiment comprises two tube-side cavities and two shell-side cavities. When used, different medium fluids can be selected for heat exchange in the inlet pipes.

[0028] Embodiment 2, when n=4:

[0029] like Figure 1 As shown, a multi-cavity vertical heat exchange device includes a first tube side section 1, a second tube side section 13, a first shell side section 3, a second shell side section 5, a third shell side section 7, a fourth shell side section 9, a fifth shell side section 11, a first tube sheet 2, a second tube sheet 4, a third tube sheet 6, a fourth tube sheet 8, a fifth tube sheet 10, a sixth tube sheet 12, and a skirt seat 14.

[0030] An inlet pipe N11701 is provided on one side of the first tube-side section 1. The lower side of the first tube-side section 1 is connected to the first tube sheet 2. The lower side of the first tube sheet 2 is connected to the first shell-side section 3. The lower side of the first shell-side section 3 is connected to the second tube sheet 4. The lower side of the second tube sheet 4 is connected to the second shell-side section 5. The lower side of the second shell-side section 5 is connected to the third tube sheet 6. The lower side of the third tube sheet 6 is connected to the third shell-side section 7. The lower side of the third shell-side section 7 is connected to the fourth tube sheet 8. The lower side of the fourth tube sheet 8 is connected to the fourth shell-side section 9. The lower side of the fourth shell-side section 9 is connected to the fifth tube sheet 10. The lower side of the fifth tube sheet 10 is connected to the fifth shell-side section 11. The lower side of the fifth shell-side section 11 is connected to the sixth tube sheet 12. The lower side of the sixth tube sheet 12 is connected to the second tube-side section 13. The second tube-side section 13 is fixed on the skirt 14. An outlet pipe N101710 is provided on the lower side of the second tube-side section 13.

[0031] A heat exchange tube 15 passes through between the first tube sheet 2 and the second tube sheet 4 , a heat exchange tube 15 passes through between the third tube sheet 6 and the fourth tube sheet 8 , and a heat exchange tube 15 passes through between the fifth tube sheet 10 and the sixth tube sheet 12 .

[0032] An inlet pipe N21702 is provided on one side of the first shell section 3, and an outlet pipe N31703 is provided on the other side; the second shell section 5 is provided with an inner extending pipe N41704 which penetrates the second shell section 5 transversely; the third shell section 7 is provided with an inlet pipe N51705 on one side, and an outlet pipe N61706 is provided on the other side; the fourth shell section 9 is provided with an inner extending pipe N71707 which penetrates the fourth shell section 9; the fifth shell section 11 is provided with an inlet pipe N81708 on one side, and an outlet pipe N91709 on the other side, and spoilers 16 are provided inside the inner extending pipes N41704 and N7, and the spoiler 16 may be twisted iron.

[0033] When in use, the inlet pipes N1, N2, N5, N8 and the inner extension pipes N4, N7 can select different medium fluids for heat exchange.

[0034] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A multi-cavity vertical heat exchange device, characterized in that: It comprises a first tube side section (1), a second tube side section (13), n+1 shell side sections, n≥1 tube sheets, a first tube sheet (2), a sixth tube sheet (12) and a skirt seat (14); An inlet pipe N1 (1701) is provided on one side of the first tube section (1), the lower side of the first tube section (1) is connected to the first shell section, the lower side of the first shell section is connected to the second shell section, and so on, until it is connected to the n+1th shell section, the lower side of the n+1th shell section is connected to the second tube section (13), the lower side of the second tube section (13) is provided with an outlet pipe N10 (1710), the second tube section (13) is fixed on the skirt (14), and the first shell section and the n+1th shell section are provided with inlet and outlet pipes on both sides; A first tube sheet (2) is horizontally fixed at the connection between the first tube section (1) and the first shell section, a tube sheet is horizontally fixed at the connection between adjacent shell sections, a sixth tube sheet (12) is horizontally fixed at the connection between the n+1th shell section and the second tube section (13), the diameters of the first tube sheet (2), the sixth tube sheet (12) and the tube sheet are equal to the diameters of the corresponding connection points, and heat exchange tubes (15) are passed through between the first tube sheet (2) and the first tube sheet, and between the nth tube sheet and the sixth tube sheet (12); When n≥2, a heat exchange tube (15) is passed through between adjacent tube sheets, or an inner extension tube is passed through a shell section between adjacent tube sheets. In the case where a heat exchange tube (15) is passed through between adjacent tube sheets, inlet and outlet pipes are provided on both sides of the shell section connecting the tube sheets.

2. A multi-chamber vertical heat exchange device according to claim 1, characterized in that: The internally extending pipe includes an internally extending pipe N4 (1704) and an internally extending pipe N7 (1707). When n=4, the number of shell-side sections is 5, the number of tube sheets is 4, the second shell-side section passes through the internally extending pipe N4 (1704), the fourth shell-side section passes through the internally extending pipe N7 (1707), a heat exchange tube (15) passes between the second tube sheet and the third tube sheet, and the third shell-side section is provided with inlet and outlet pipes on both sides.

3. A multi-cavity vertical heat exchange device according to claim 1 or 2, characterized in that: A spoiler (16) is arranged inside the inner extending pipe.

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