Jacketed heat exchanger

Abstract

The utility model relates to a jacketed heat exchanger, belongs to the technical field of heat exchangers, and solves the problem of poor external pressure stability of a jacketed heat exchanger in the prior art. Comprising an inner shell and an outer shell arranged on the outer side of the inner shell, an inner cavity is formed in the inner shell, an outer cavity is formed between the inner shell and the outer shell, the inner shell is provided with a first inlet and a first outlet, and the outer shell is provided with a second inlet and a second outlet; the outer shell comprises a plurality of outer shell plates and a plurality of half pipes; wherein the section of each half pipe is fixedly arranged on the inner shell, and the outer shell plate is fixedly arranged between every two adjacent half pipes.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field especially relates to a jacketed heat exchanger. BACKGROUND

[0002] The jacketed heat exchanger is the industrial production equipment that is very commonly used in each industry such as chemical industry, metallurgy, medicine, electric power, heat energy and so on for the heat exchange of two fluids.The flow behavior of fluid in the jacketed heat exchanger has important influence on the heat transfer rate of heat exchanger.However, the traditional jacketed heat exchanger has some limitations, the jacket structure is due to the effect of internal pressure, leading to the poor stability of the outer pressure of heat exchanger, especially large size structure, currently through the ring rib to solve, but the number of ring rib added is too much, is not conducive to the structure design, and the cost is also greatly increased. SUMMARY

[0003] In view of the above-mentioned analysis, the utility model aims at providing a jacketed heat exchanger to solve the problem of poor stability of the outer pressure of the existing jacketed heat exchanger.

[0004] The utility model discloses a jacketed heat exchanger mainly achieves the following technical scheme:

[0005] The utility model provides a jacketed heat exchanger, including inner casing, the outer casing of setting in the inner casing outside, the inside of inner casing forms the inner chamber, and the outer chamber is formed between inner casing and outer casing, first inlet and first outlet are provided to inner casing, and second inlet and second outlet are provided to outer casing.

[0006] The outer casing includes a plurality of shell plates and a plurality of half pipes, wherein the cross section of each half pipe is fixedly arranged on the inner casing, and the shell plate is fixedly arranged between the adjacent two half pipes.

[0007] Based on the further improvement of the above scheme, the first inlet is arranged on the upper portion of the inner casing, and the first outlet is arranged on the lower portion of the inner casing; the second inlet is arranged on the upper portion of the outer casing, and the second outlet is arranged on the lower portion of the outer casing.

[0008] Based on the further improvement of the above scheme, the inner casing is in the shape of a cylinder, and each half pipe is distributed along the circumference of the inner casing and arranged along the axis of the inner casing.

[0009] Based on the further improvement of the above scheme, the heat exchanger further comprises a stirring mechanism arranged in the inner chamber of the inner casing.

[0010] Based on the further improvement of the above scheme, the heat exchanger further comprises a motor and a speed reducer arranged outside the inner casing, the motor and the speed reducer are connected, and the speed reducer is connected with the stirring mechanism.

[0011] Based on the further improvement of the above scheme, the stirring mechanism comprises a main shaft and stirring blades arranged on the main shaft.

[0012] Based on the further improvement of the above scheme, the shell plate is fixedly arranged outside the corresponding half pipe, and the shell plate is arranged at a set distance from the inner shell.

[0013] Based on the further improvement of the above scheme, the radius of the half pipe ranges from 80mm to 160mm.

[0014] Based on the further improvement of the above scheme, the cross section of the half pipe is provided with a plurality of grooves.

[0015] Based on the further improvement of the above scheme, the shell plate and the half pipe are welded, and the half pipe and the inner shell are welded.

[0016] Compared with the prior art, the utility model at least can realize following beneficial effect one:

[0017] The utility model provides a kind of jacketed heat exchanger, including inner shell, the outer shell of being arranged in the outer side of inner shell, the inside of inner shell forms inner chamber, and outer chamber is formed between inner shell and outer shell, the inner shell is provided with first inlet and first outlet, and the outer shell is provided with second inlet and second outlet;The outer shell includes multiple shell plates and multiple half pipes, and the cross section of each half pipe is fixedly arranged on inner shell, and shell plate is fixedly arranged between adjacent two half pipes, the heat exchanger solves the problem that the outer pressure stability of jacketed heat exchanger is poor, and structure is simple, when the heat exchanger works, inner shell is main pressure-bearing shell, and half pipe and inner layer shell form innumerable flow channel, shell plate is arranged between inner shell and half pipe vertex, forms a outside flexible protection structure, improves heat exchanger outer pressure stability, and it has thermal displacement compensation simultaneously to structure generated by thermal environment, longer life, reduced cost;In addition, by adding stirring mechanism, the heat exchange of heat exchanger can be more uniform.

[0018] In the utility model, the above each technical scheme can be combined mutually to realize more preferred combination scheme.The other features and advantages of the utility model will be described in the following content, and part of advantages can become apparent from the specification, or be understood by implementing the utility model.The purpose and other advantages of the utility model can be realized and obtained by the content specially pointed out in text and drawing. DRAWINGS

[0019] The drawings are only for the purpose of showing specific embodiments, and are not considered as limitation to the utility model, and same reference numerals indicate same parts in the whole drawings.

[0020] Figure 1 The structure schematic view of jacketed heat exchanger provided by the utility model is shown.

[0021] Figure 2 A cross-sectional schematic diagram of the jacketed heat exchanger shell provided by this utility model;

[0022] Figure 3 A three-dimensional structural diagram of the jacketed heat exchanger shell provided by this utility model;

[0023] Figure label:

[0024] 1-Inner shell; 2-Outer shell; 3-Stirring mechanism; 4-Motor; 5-Reducer;

[0025] 11-First inlet; 12-First outlet; 21-Second inlet; 22-Second outlet; 23-Outer shell plate; 24-Half-pipe; 31-Main shaft; 32-Agitator blade. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0027] A specific embodiment of this utility model discloses a jacketed heat exchanger, such as... Figure 1 As shown, it includes an inner shell 1 and an outer shell 2 disposed outside the inner shell. An inner cavity is formed inside the inner shell 1, and an outer cavity is formed between the inner shell 1 and the outer shell 2. The inner shell 1 is provided with a first inlet 11 and a first outlet 12, and the outer shell 2 is provided with a second inlet 21 and a second outlet 22.

[0028] The outer shell 2 includes multiple outer shell plates 23 and multiple half tubes 24; wherein, the cross section of each half tube 24 is fixedly disposed on the inner shell 1, and an outer shell plate 23 is fixedly disposed between two adjacent half tubes 24.

[0029] In practice, the first inlet 11 is located on the upper part of the inner shell 1, and the first outlet 12 is located on the lower part of the inner shell 1; the second inlet 21 is located on the upper part of the outer shell 2, and the second outlet 22 is located on the lower part of the outer shell 2.

[0030] For example, a high-temperature fluid enters the inner cavity of the inner shell 1 through the first inlet 11 and flows within the inner cavity, while a low-temperature fluid enters the outer cavity between the inner shell and the outer shell through the second inlet 21 and flows within the outer cavity. The high-temperature fluid in the inner cavity and the low-temperature fluid in the outer cavity exchange heat through the inner shell 1 to achieve the heat exchange process. Afterward, the high-temperature fluid flows out through the first outlet 12, and the low-temperature fluid flows out through the second outlet 22.

[0031] When implementing, such as Figure 2 and Figure 3As shown, the inner housing 1 is cylindrical, and each half pipe 24 is distributed circumferentially along the inner housing 1 and arranged axially along the inner housing 1.

[0032] In implementation, the heat exchanger further comprises a stirring mechanism 3 arranged in the inner cavity of the inner housing 1.

[0033] In implementation, the heat exchanger further comprises a motor 4 and a speed reducer 5 arranged outside the inner housing 1, the motor 4 and the speed reducer 5 are connected, and the speed reducer 5 is connected with the stirring mechanism 3.

[0034] Specifically, the motor 4 and the speed reducer 5 are connected through a shaft coupling for torque transmission, installation error compensation and vibration reduction.

[0035] More specifically, the shaft coupling includes a rigid shaft coupling, an elastic shaft coupling or a universal shaft coupling.

[0036] Specifically, the stirring mechanism 3 comprises a main shaft 31 and stirring blades 32 arranged on the main shaft 31.

[0037] More specifically, the main shaft 31 is supported by bearings to reduce friction and ensure stable rotation of the main shaft.

[0038] More specifically, the stirring mechanism is fixed and supported on the top of the inner cavity of the inner housing 1 by a bracket to ensure stable operation.

[0039] In implementation, the outer shell plate 23 is fixedly arranged outside the corresponding half pipe 24, and the outer shell plate 23 is spaced apart from the inner housing 1 by a certain distance.

[0040] Specifically, the distance between each outer shell plate 23 and the inner housing 1 is set to 0.4-0.6 times the radius of the half pipe 24, so as to realize the flexibility of the entire outer shell formed by the half pipe 24 and the outer shell plate 23, and achieve thermal displacement compensation between the entire shell formed by the inner housing 1, the half pipe 24 and the outer shell plate 23.

[0041] Specifically, the outer shell plate 23 is a steel plate.

[0042] Specifically, the radius of the half pipe 24 is in the range of 80-160 mm. It can be understood that this setting can keep the distance between the inner housing and the outer shell plate within a proper range without increasing the difficulty of production.

[0043] Specifically, the cross section of the half pipe 24 is provided with a plurality of grooves. It can be understood that the grooves increase the mutual flow of fluid and avoid uneven temperature.

[0044] More specifically, the groove length is in the range of 100mm-200mm, the groove height is in the range of 10mm-20mm, and the distance between each groove is the same as the length of the groove.

[0045] Specifically, the shell plate 23 and the half pipe 24 are welded; the half pipe 24 is welded with the inner shell 1.

[0046] Compared with the prior art, the embodiment provides a jacketed heat exchanger, which comprises an inner shell, an outer shell arranged outside the inner shell, an inner cavity formed in the inner shell, an outer cavity formed between the inner shell and the outer shell, a first inlet and a first outlet arranged on the inner shell, and a second inlet and a second outlet arranged on the outer shell; the outer shell comprises a plurality of shell plates and a plurality of half pipes, and the cross section of each half pipe is fixedly arranged on the inner shell, and a shell plate is fixedly arranged between two adjacent half pipes, the heat exchanger solves the problem of poor outer pressure stability of the jacketed heat exchanger, has a simple structure, and has the advantages that when the heat exchanger works, the inner shell is a main pressure-bearing shell, the half pipes and the inner shell form a plurality of flow channels, the shell plates are arranged between the inner shell and the vertexes of the half pipes, form an outer flexible protection structure, improve the outer pressure stability of the heat exchanger, and have the advantages of thermal displacement compensation caused by a thermal environment, longer service life and reduced cost; in addition, the addition of the stirring mechanism can make the heat exchange of the heat exchanger more uniform.

[0047] The utility model only needs to connect the devices with corresponding functions through the connection relationship given in the embodiment of the utility model, and does not involve any improvement of program software.

[0048] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A jacketed heat exchanger, characterized in that, The heat exchanger comprises an inner shell (1), an outer shell (2) arranged outside the inner shell, an inner cavity formed in the inner shell (1), and an outer cavity formed between the inner shell (1) and the outer shell (2), wherein the inner shell (1) is provided with a first inlet (11) and a first outlet (12), and the outer shell (2) is provided with a second inlet (21) and a second outlet (22). The outer shell (2) comprises a plurality of outer shell plates (23) and a plurality of half-pipes (24), wherein each half-pipe (24) is fixedly arranged on the inner shell (1), and an outer shell plate (23) is fixedly arranged between two adjacent half-pipes (24).

2. The jacketed heat exchanger of claim 1, wherein The first inlet (11) is arranged on the upper portion of the inner shell (1), and the first outlet (12) is arranged on the lower portion of the inner shell (1); the second inlet (21) is arranged on the upper portion of the outer shell (2), and the second outlet (22) is arranged on the lower portion of the outer shell (2).

3. The jacketed heat exchanger of claim 1, wherein, The inner shell (1) is in the shape of a cylinder, each half-pipe (24) is distributed circumferentially along the inner shell (1) and arranged axially along the inner shell (1).

4. The jacketed heat exchanger of claim 1, wherein, The heat exchanger further comprises a stirring mechanism (3) arranged in the inner cavity of the inner shell (1).

5. The jacketed heat exchanger of claim 4, wherein, The heat exchanger further comprises a motor (4) and a speed reducer (5) arranged outside the inner shell (1), wherein the motor (4) and the speed reducer (5) are connected, and the speed reducer (5) is connected with the stirring mechanism (3).

6. The jacketed heat exchanger of claim 4, wherein, The stirring mechanism (3) comprises a main shaft (31) and stirring blades (32) arranged on the main shaft (31).

7. The jacketed heat exchanger of claim 1, wherein The outer shell plate (23) is fixedly arranged outside the corresponding half-pipe (24), and the outer shell plate (23) is spaced apart from the inner shell (1) by a set distance.

8. The jacketed heat exchanger of claim 1, wherein The radius of the half-pipe (24) ranges from 80mm to 160mm.

9. The jacketed heat exchanger of claim 1, wherein, The cross section of the half-pipe (24) is provided with a plurality of grooves (11).

10. The jacketed heat exchanger of claim 1, wherein The outer shell plate (23) and the half-pipe (24) are welded; and the half-pipe (24) and the inner shell (1) are welded.

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