Kettle type reboiler

Abstract

The kettle type reboiler comprises a tower kettle, a heat exchange plate bundle composed of a plurality of heat exchange plates is detachably arranged in the tower kettle, the two ends of the heat exchange plate bundle are integrated on a first tube plate and a second tube plate respectively, the first tube plate is provided with a detachable first tube box, and the second tube plate is provided with a second tube box; wherein the first tube box is provided with a liquid inlet and a liquid outlet, and the interior of the first tube box is divided into a liquid inlet area communicated with the liquid inlet and a liquid outlet area communicated with the liquid outlet by a partition plate; the U-shaped tube heat exchanger can solve the problems that a U-shaped tube heat exchanger in a traditional tower kettle is inconvenient to disassemble and assemble and difficult to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a kettle type reboiler. Background Art

[0002] The kettle reboiler consists of an expanded shell and a detachable heat exchange tube bundle. It has the advantages of easy maintenance and cleaning, large heat transfer area, high gasification rate, large operational flexibility, and can be operated under vacuum. Although the kettle reboiler occupies a large area and has a high investment, many manufacturers with higher production efficiency requirements will use the kettle reboiler for material recovery.

[0003] After a long period of operation, the kettle reboiler needs to be cleaned to remove the dirt attached to the surface of the heat exchanger to improve the heat exchange efficiency of the heat exchanger. However, traditional U-tube heat exchangers are difficult to disassemble and inconvenient to clean, which easily causes dirt residue and affects the heat exchange work of the heat exchanger. Utility Model Content

[0004] In order to overcome the above shortcomings, the purpose of the present invention is to provide a kettle type reboiler.

[0005] In order to achieve the above objectives, the technical solutions adopted by the present invention include:

[0006] A tower kettle, wherein a heat exchange plate bundle composed of a plurality of heat exchange plates is detachably configured in the tower kettle, and both ends of the heat exchange plate bundle are respectively integrated with a first tube sheet and a second tube sheet, the first tube sheet is equipped with a detachable first tube box, and the second tube sheet is equipped with a second tube box;

[0007] The first pipe box has a liquid inlet and a liquid outlet, and the first pipe box is divided by a partition to form a liquid inlet area connected to the liquid inlet and a liquid outlet area connected to the liquid outlet.

[0008] The present application replaces the U-shaped heat exchanger in the tower kettle with a plate heat exchanger, which can realize heat exchange and evaporation of the liquid in the tower kettle while facilitating the disassembly and assembly of the heat exchange plate bundle. Compared with conventional U-tube heat exchangers, the heat exchange plates are easier to clean, reducing the problem of impurities adhering to the heat exchange plate bundle and affecting the heat exchange efficiency of the heat exchange plate bundle.

[0009] In the preferred technical solution of the above-mentioned kettle-type reboiler, the heat exchange plate bundle is clamped by a clamping structure.

[0010] In the preferred technical solution of the above-mentioned kettle reboiler, the clamping structure is a tie rod passing through at least one support plate of the heat exchange plate bundle and used to connect the support plate to the first tube sheet.

[0011] In the preferred technical solution of the above-mentioned kettle-type reboiler, the clamping structure is a clamp for compressing the heat exchange plate bundle.

[0012] In the preferred technical solution of the above-mentioned kettle reboiler, the clamp consists of at least a first part and a second part, and the inner sides of the first part and the second part are respectively provided with a plurality of heat sinks extending toward the inner center direction of each, and heat sink surfaces are formed with heat dissipation fins.

[0013] In the preferred technical solution of the above-mentioned kettle-type reboiler, the heat sink is detachably arranged on the inner side of the clamp.

[0014] In the preferred technical solution of the above-mentioned kettle-type reboiler, the heat sink and heat fins are made of copper or aluminum.

[0015] In the preferred technical solution of the kettle reboiler, spherical protrusions are formed on the surface of the heat exchange plate.

[0016] In the preferred technical solution of the kettle-type reboiler, a flow space for the heat exchange medium to pass through is formed in the heat exchange plate, and the cross-section of the flow space is a jujube-shaped structure.

[0017] In the preferred technical solution of the above-mentioned kettle reboiler, in the radial direction of the first tube sheet, the widths of the heat exchange plates sequentially arranged from the partition toward the liquid inlet, or from the partition toward the liquid outlet, gradually decrease.

[0018] The beneficial effect of the present invention is that by replacing the U-shaped heat exchanger in the tower kettle with a plate heat exchanger, it is possible to achieve heat exchange and evaporation of the liquid in the tower kettle while facilitating the disassembly and assembly of the heat exchange plate bundle. Compared with conventional U-tube heat exchangers, the heat exchange plates are easier to clean, reducing the problem of impurities adhering to the heat exchange plate bundle and affecting the heat exchange efficiency of the heat exchange plate bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the utility model;

[0020] Figure 2 Schematic diagram of the heat exchange plate bundle installed on the first tube sheet;

[0021] Figure 3 It is the path of heat transfer medium flow in the heat exchange plate;

[0022] Figure 4 The first embodiment of the flow space of the heat exchange plate;

[0023] Figure 5 This is the second implementation method of the heat exchange plate flow space;

[0024] Figure 6 This is the connection diagram between the clamp and the heat sink;

[0025] In the figure: tower kettle 1, liquid inlet 11, steam outlet 12, liquid outlet 13, heat exchange plate 2, flow space 21, heat exchange plate bundle 3, first tube sheet 4, second tube sheet 5, first tube box 6, liquid inlet 61, liquid outlet 62, partition 63, liquid inlet area 64, liquid outlet area 65, second tube box 7, support plate 81, pull rod 82, clamp 83, first part 831, second part 832, heat sink 91, and heat sink fin 92. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense, for example, to refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0029] like Figures 1 to 6 As shown, the kettle reboiler of the present invention includes: a tower kettle 1, in which a heat exchange plate bundle 3 composed of a plurality of heat exchange plates 2 is detachably configured, and the two ends of the heat exchange plate bundle 3 are respectively integrated with a first tube sheet 4 and a second tube sheet 5, the first tube sheet 4 is provided with a detachable first tube box 6, and the second tube sheet 5 is provided with a second tube box 7; wherein, the first tube box 6 has a liquid inlet 61 and a liquid outlet 62, and the first tube box 6 is divided by a partition 63 to form a liquid inlet area 64 connected to the liquid inlet 61 and a liquid outlet area 65 connected to the liquid outlet 62.

[0030] See also Figure 1 A liquid feed inlet 11 and a steam outlet 12 are formed at the top of the tower kettle 1, and a liquid feed outlet 13 is formed at the bottom of the tower kettle 1.

[0031] See also Figure 1 、 Figure 2The heat exchange plate bundle 3 is composed of a plurality of mutually parallel heat exchange plates 2. The two ends of the heat exchange plates 2 are respectively mounted on a first tube sheet 4 and a second tube sheet 5. The first tube sheet 4 is provided with a first pipe box 6 at the end away from the heat exchange plate bundle 3, and the second tube sheet 5 is provided with a second pipe box 7 at the end away from the heat exchange plate bundle 3. The first pipe box 6 covers one end of the heat exchange plate bundle 3, and the second pipe box 7 covers the other end of the heat exchange plate bundle 3. At the same time, a partition 63 is used to separate the first pipe box 6 into a liquid inlet area 64 and a liquid outlet area 65.

[0032] When the heat exchange plate bundle 3 is used to heat and evaporate the liquid in the tower kettle 1, the heat exchange medium is first controlled to enter the liquid inlet area 64 through the liquid inlet 61. The heat exchange medium in the liquid inlet area 64 can pass through the heat exchange plates 2 relatively located within the range of the liquid inlet area 64, and is transported by the heat exchange plates 2 to allow the heat exchange medium to enter the second pipe box 7. When the heat exchange medium flowing in this part of the heat exchange plates 2 passes through the tower kettle 1, it will exchange heat with the liquid in the tower kettle 1 to achieve the purpose of heating and evaporating the liquid in the tower kettle 1. The medium in the box 7 that has undergone heat exchange enters the liquid outlet area 65 of the first pipe box 6 through the heat exchange plate 2 relatively located within the liquid outlet area 65, and is discharged through the liquid outlet 62. In this way, the material liquid in the tower bottom 1 can be heat exchanged and evaporated while facilitating the disassembly and assembly of the heat exchange plate bundle 3. At the same time, the heat exchange plate bundle 3 is composed of a plurality of plate-shaped heat exchange plates 2. Compared with conventional U-shaped heat exchange tubes, the heat exchange plates 2 are easier to clean, thereby reducing the problem of impurities adhering to the heat exchange plate bundle 3 and affecting the heat exchange efficiency of the heat exchange plate bundle 3.

[0033] In one or more embodiments, the heat exchange plate bundle 3 is clamped by a clamping structure. Clamping the heat exchange plate bundle 3 by the clamping structure can reduce deformation or positional change of the heat exchange plate bundle 3 in the reactor vessel 1, thereby ensuring the stability of the heat exchange operation of the heat exchange plate bundle 3.

[0034] In the first embodiment of the clamping structure, the clamping structure is at least one supporting plate 81 passing through the heat exchange plate bundle 3 and a tie rod 82 for connecting the supporting plate 81 to the first tube sheet 4 .

[0035] See also Figure 1 A plurality of support plates 81 can be arranged along the length direction of the heat exchange plate bundle 3. The support plates 81 can pass through the heat exchange plate bundle 3 to fix the heat exchange plate bundle 3. At the same time, the two ends of the plurality of support plates 81 are fixed by using tie rods 82, and the tie rods 82 are fixed on the first tube sheet 4 or the second tube sheet 5 to further improve the position stability of each heat exchange plate 2.

[0036] In the second embodiment of the clamping structure, the clamping structure is a clamp 83 for pressing the heat exchange plate bundle 3; the clamp 83 is composed of at least a first part 831 and a second part 832, and the inner sides of the first part 831 and the second part 832 are respectively provided with a plurality of heat sinks 91 extending toward the inner center direction of each, and heat sinks 91 are formed with heat fins 92 on the surface; the heat sink 91 is detachably arranged on the inner side of the clamp 83; the heat sink 91 and the heat fins 92 are made of copper or aluminum.

[0037] See also Figure 1 、 Figure 6 The clamp 83 is composed of a symmetrically arranged first part 831 and a second part 832 and bolts. After the first part 831 and the second part 832 are assembled, the bolts can be used to clamp the first part 831 and the second part 832 together.

[0038] When the cross-section of the heat exchange plate bundle 3 is circular, that is, when the sizes of the heat exchange plate bundles 3 vary, the first portion 831 and the second portion 832 of the clamp 83 are both semicircular. When the cross-section of the heat exchange plate bundle 3 is square, that is, when the heat exchange plates 2 are all the same size, the first portion 831 and the second portion 832 of the clamp 83 are rectangular. It should be noted that the shape of the clamp 83 matches the overall shape of the heat exchange plate bundle 3. When the overall shape of the heat exchange plate bundle 3 changes, the clamping space formed by the first portion 831 and the second portion 832 of the clamp 83 can be adaptively adjusted.

[0039] See also Figure 6 The inner sides of the first part 831 and the second part 832 are both provided with heat sinks 91. The heat sinks 91 are horizontal so that when the clamps hold the heat exchange plate bundle 3 tightly, the heat sinks 91 can fit on the heat exchange plates 2. At the same time, the heat dissipation fins 92 formed on the surface of the heat sink 91 can further improve the heat exchange efficiency between the heat exchange plates 2 and the liquid in the tower bottom 1, thereby improving the use effect of the present application.

[0040] In one or more embodiments, spherical protrusions are formed on the surface of the heat exchange plate 2. The accompanying drawings do not show the spherical protrusions on the heat exchange plate 2. By configuring the spherical protrusions on the heat exchange plate 2, the liquid in the reactor vessel 1 can be turbulent, further improving the heat exchange efficiency.

[0041] In one or more embodiments, a flow space 21 for the heat exchange medium to pass through is formed in the heat exchange plate 2 , and the cross section of the flow space 21 is a jujube-shaped structure.

[0042] See also Figures 3 to 5The flow space 21 of the heat exchange plate 2 is shaped like a jujube pit. The size of the flow space 21 can be adjusted adaptively, and the number of flow spaces 21 can be two or three, etc., without specific limitation. By configuring the flow space 21 of the heat exchange plate 2 in a jujube pit structure, the contact area between the heat exchange medium and the heat exchange plate 2 can be increased, while the flow rate of the flow space 21 can be reduced, thereby reducing energy loss.

[0043] In one or more embodiments, in the radial direction of the first tube sheet 4 , the widths of the heat exchange plates 2 sequentially arranged from the partition 63 toward the liquid inlet 61 , or from the partition 63 toward the liquid outlet 62 , gradually decrease.

[0044] See also Figure 2 The cross section of the heat exchange plate bundle 3 composed of several heat exchange plates 2 is roughly circular. In this way, the heat exchange plate bundle 3 can be easily pulled out of the tower kettle 1, making it easier for staff to clean the heat exchange plates 2.

[0045] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A kettle reboiler, characterized in that: include: A tower kettle, wherein a heat exchange plate bundle composed of a plurality of heat exchange plates is detachably configured in the tower kettle, and both ends of the heat exchange plate bundle are respectively integrated with a first tube sheet and a second tube sheet, the first tube sheet is equipped with a detachable first tube box, and the second tube sheet is equipped with a second tube box; The first pipe box has a liquid inlet and a liquid outlet, and the first pipe box is divided by a partition to form a liquid inlet area connected to the liquid inlet and a liquid outlet area connected to the liquid outlet.

2. The kettle reboiler according to claim 1, characterized in that: The heat exchange plate bundle is clamped by a clamping structure.

3. The kettle reboiler according to claim 2, characterized in that: The clamping structure is a tie rod that passes through at least one supporting plate of the heat exchange plate bundle and is used to connect the supporting plate to the first tube sheet.

4. The kettle reboiler according to claim 2, characterized in that: The clamping structure is a clamp used to compress the heat exchange plate bundle.

5. The kettle reboiler according to claim 4, characterized in that: The clamp is composed of at least a first part and a second part. The inner sides of the first part and the second part are respectively provided with a plurality of heat sinks extending toward the inner center direction of each part. The surfaces of the heat sinks are formed with heat dissipation fins.

6. The kettle reboiler according to claim 5, characterized in that: The heat sink is detachably arranged on the inner side of the clamp.

7. The kettle reboiler according to claim 5, characterized in that: The heat sink and the heat dissipation fins are made of copper or aluminum.

8. The kettle reboiler according to claim 1, characterized in that: Spherical protrusions are formed on the surface of the heat exchange plate.

9. The kettle reboiler according to claim 1 or 7, characterized in that: A flow space for the heat exchange medium to pass through is formed in the heat exchange plate, and the cross section of the flow space is a jujube-shaped structure.

10. The kettle reboiler according to claim 1, characterized in that: In the radial direction of the first tube sheet, the widths of the heat exchange plates sequentially arranged from the partition toward the liquid inlet, or from the partition toward the liquid outlet, gradually decrease.

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