Shell-and-tube heat reservoir for chemical production

Abstract

The utility model discloses a shell-and-tube heat reservoir for chemical production, and belongs to the technical field of chemical production equipment. The inner shell is connected with the outer shell in an inserted mode, the outer shell is connected with the installation cover, a bin partition plate is arranged in the inner shell, a first partition plate is arranged between the bin partition plate and the inner shell, the bin partition plate is connected with a second partition plate, the second partition plate is connected with the inner shell, the second partition plate is provided with a liquid conveying mechanism, the liquid conveying mechanism is connected with the bin partition plate, the liquid conveying mechanism is connected with the liquid storage bin in an inserted mode, and the liquid storage bin is connected with the outer shell. The liquid storage bin is provided with a sealing door, the liquid inlet bin is provided with a hot fluid inlet and an inner shell water inlet, the liquid outlet bin is provided with an inner shell water outlet and a hot fluid outlet, the cold fluid inlet is communicated with one liquid conveying mechanism, and the cold fluid outlet is communicated with the other liquid conveying mechanism. The heat exchanger has the remarkable beneficial effects in the aspects of structural design, heat exchange performance, maintenance, cleaning and the like, the efficient and stable requirements on heat storage and transfer in chemical production can be met, and meanwhile, the maintenance cost and difficulty of equipment are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical production equipment technical field, concretely is a kind of tubular heat exchanger for chemical production. BACKGROUND

[0002] In chemical production process, heat exchange is a vital link, it directly influences production efficiency and energy utilization efficiency, however, the existing tubular heat exchanger has many deficiencies in structural design, heat exchange performance and maintenance cleaning etc., it is difficult to meet the growing demand of chemical production.

[0003] Firstly, in structural design, the existing tubular heat exchanger often adopts integrated design, and the connection between components is close, it is difficult to be individually disassembled and maintained, when some components appear fault or need cleaning, it often needs to carry out large-scale disassembly to whole heat exchanger, this not only increases the difficulty and cost of maintenance, but also can lead to equipment downtime too long, influence production efficiency;

[0004] Secondly, in heat exchange performance, the internal layout of the existing tubular heat exchanger is not reasonable enough, the flow path of hot fluid and cold fluid is not clear enough, leading to insufficient heat exchange, and low heat exchange efficiency, in addition, the existing tube bundle design is also relatively single, and the heat exchange area is limited, it is difficult to meet the demand of efficient heat exchange;

[0005] Thirdly, in maintenance cleaning, the existing tubular heat exchanger has many inconveniences, since the connection between components is close, it is difficult to disassemble, leading to cleaning work difficult to carry out, at the same time, some key components such as tube bundle, due to the connection mode is not convenient enough, also increases the difficulty and cost of maintenance. INVENTION CONTENTS

[0006] To solve the problems in the background art, the utility model provides a tubular heat exchanger for chemical production.

[0007] To achieve the above object, the utility model takes the following technical scheme: a tubular heat exchanger for chemical production, comprising shell body, inner shell, partition plate, partition plate one, partition plate two, liquid storage bin, sealing door, mounting cover, hot fluid inlet, inner shell inlet, inner shell outlet, hot fluid outlet, cold fluid inlet, cold fluid outlet and two liquid conveying mechanisms.

[0008] The inner shell is sealingly and fixedly inserted into the inner wall of the outer shell, one end of the outer shell is detachably connected with the mounting cover, the inner shell is internally provided with a partition plate, one side wall of the partition plate is fixedly connected with the inner wall of the inner shell, the upper portion of the partition plate forms a liquid inlet compartment, the lower portion of the partition plate forms a liquid outlet compartment, the other side wall of the partition plate is fixedly connected with one end of a second partition plate, the side wall of the second partition plate is fixedly connected with the inner wall of the inner shell, the upper portion and the lower portion of the second partition plate are provided with liquid conveying mechanisms, one end of each of the liquid conveying mechanisms is fixedly connected with the partition plate, and the other end of each of the liquid conveying mechanisms is sealingly and fixedly inserted into a liquid storage compartment.

[0009] Each of the liquid conveying mechanisms comprises a distribution compartment, a plurality of pipe bundles, a plurality of baffle plates, a plurality of threaded sleeves and a plurality of sealing rings.

[0010] The plurality of pipe bundles are arranged in an array, one end of each of the plurality of pipe bundles is fixedly connected with the distribution compartment, the distribution compartment is in communication with the corresponding cold fluid inlet or cold fluid outlet, the liquid storage compartment is provided with sealing holes corresponding to the plurality of pipe bundles, the other end of each of the plurality of pipe bundles is provided with an external thread, the other end of each of the plurality of pipe bundles is sealingly inserted into the corresponding sealing hole and fixed through the threaded sleeve, a sealing ring is arranged between each of the threaded sleeves and the inner wall of the liquid storage compartment, each of the sealing rings is sleeved on the corresponding pipe bundle, a plurality of baffle plates are arranged along the axial direction and are alternately arranged at intervals, and each of the plurality of baffle plates is fixedly connected with the adjacent second partition plate or the inner shell.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1. Modular design: the inner shell is sealingly and fixedly inserted into the inner wall of the outer shell, one end of the outer shell is detachably connected with the mounting cover, and the outer wall of the liquid storage compartment is sealingly and detachably connected with the inner wall of the outer shell, so that the components of the heat accumulator are relatively independent, the specific module can be operated when it is necessary to clean or replace the components, and the entire heat accumulator does not need to be disassembled on a large scale, so that the convenience of maintenance is greatly improved.

[0013] 2. Reasonable internal layout: the inner shell is internally provided with the partition plate, the first partition plate and the second partition plate, the inner shell is divided into the liquid inlet compartment and the liquid outlet compartment, and the orderly flow and heat exchange of the hot fluid and the cold fluid are realized through the liquid conveying mechanisms, so that the flow paths of the hot fluid and the cold fluid are clear, the heat exchange can be fully performed, and the heat exchange efficiency is improved.

[0014] 3. Highly efficient heat exchange: The hot fluid passes through multiple baffles above and below the baffles in the inner shell, which increases the flow path and turbulence of the hot fluid, allowing the hot fluid to fully contact the tube bundle and improving the heat exchange efficiency. At the same time, the cold fluid enters multiple tube bundles through the distribution chambers and exchanges heat with the hot fluid during its flow in the tube bundles, further enhancing the heat exchange effect and enabling more effective heat transfer and storage.

[0015] 4. Multi-tube bundle design: The infusion mechanism adopts a multi-tube bundle array, which increases the contact area between cold and hot fluids, making heat exchange more efficient. Multiple baffles are arranged along the axial direction of the multiple tube bundles, which further enhances the turbulence of the fluid and improves the heat exchange efficiency, thus better meeting the needs of heat transfer and storage in chemical production.

[0016] 5. Convenient maintenance operation: When it is necessary to clean or replace the components inside the heat storage tank, simply remove the mounting cover, open the sealing door, and unscrew the threaded sleeve in sequence to remove the liquid storage tank and pull out the inner shell for replacement and cleaning. This design greatly simplifies the maintenance process, reduces maintenance time and workload, and lowers maintenance costs.

[0017] 6. Detachable tube bundle connection: The other end of the tube bundle is provided with an external thread, which is fixed to the liquid storage tank by a threaded sleeve. Each threaded sleeve is provided with a sealing ring between itself and the inner wall of the liquid storage tank. This detachable connection method not only facilitates the installation and disassembly of the tube bundle, but also ensures the sealing of the connection by the sealing ring, preventing fluid leakage and improving the reliability and safety of the heat storage tank.

[0018] In summary, this utility model has significant beneficial effects in terms of structural design, heat exchange performance, and maintenance and cleaning. It can meet the high-efficiency and stable requirements for heat storage and transfer in chemical production, while reducing the maintenance cost and difficulty of the equipment. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0021] This embodiment describes a shell-and-tube heat storage device for chemical production, including an outer shell 1, an inner shell 2, a partition plate 3, a first partition plate 4, a second partition plate 5, a liquid storage tank 10, a sealing door 11, a mounting cover 12, a hot fluid inlet 13, an inner shell inlet 14, an inner shell outlet 15, a hot fluid outlet 16, a cold fluid inlet 17, a cold fluid outlet 18, and two liquid delivery mechanisms.

[0022] The inner shell 2 is sealed and fixed to the inner wall of the outer shell 1. One end of the outer shell 1 is detachably connected to the mounting cover 12. A partition plate 3 is provided inside the inner shell 2. A partition plate 4 is fixed between one side wall of the partition plate 3 and the inner wall of the inner shell 2. An inlet chamber is formed above the partition plate 4, and an outlet chamber is formed below the partition plate 4. The other side wall of the partition plate 3 is fixedly connected to one end of a partition plate 5. The side wall of the partition plate 5 is fixedly connected to the inner wall of the inner shell 2. Infusion mechanisms are provided above and below the partition plate 5. One end of each infusion mechanism is connected to the partition plate 5. The tank plate 3 is fixedly connected, and the other end of each infusion mechanism is sealed and inserted into the storage tank 10. The outer wall of the storage tank 10 is sealed and detachably connected to the inner wall of the outer shell 1. The storage tank 10 is provided with a sealing door 11. The inlet tank has a hot fluid inlet 13 and an inner shell inlet 14. The outlet tank has an inner shell outlet 15 and a hot fluid outlet 16. The cold fluid inlet 17 is sealed and passes through the inlet tank and communicates with the corresponding infusion mechanism. The cold fluid outlet 18 is sealed and passes through the outlet tank and communicates with another infusion mechanism.

[0023] Each of the infusion mechanisms includes a diversion chamber 19, multiple tube bundles 6, multiple baffles 7, multiple threaded sleeves 8, and multiple sealing rings 9;

[0024] The plurality of tube bundles 6 are arranged in an array, with one end of each tube bundle 6 connected and fixed to a diversion chamber 19. The diversion chamber 19 is connected to a corresponding cold fluid inlet 17 or cold fluid outlet 18. The liquid storage chamber 10 has sealing holes corresponding to the plurality of tube bundles 6. The other end of each tube bundle 6 is provided with an external thread. The other end of each tube bundle 6 is respectively sealed and inserted into the corresponding sealing hole and fixed by a threaded sleeve 8. Each threaded sleeve 8 is provided with a sealing ring 9 between itself and the inner wall of the liquid storage chamber 10. Each sealing ring 9 is fitted onto the corresponding tube bundle 6. The plurality of tube bundles 6 are provided with a plurality of baffles 7 at intervals along the axial direction. The plurality of baffles 7 are respectively fixedly connected to the adjacent partition 5 or inner shell 2.

[0025] The working principle of a shell-and-tube thermal accumulator used in chemical production is as follows:

[0026] 1. Flow and heat exchange of hot fluid: The chemical hot fluid enters the liquid inlet chamber above the partition 4 through the hot fluid inlet 13, and then flows into the inner shell 2 through the inner shell inlet 14. In the inner shell 2, the hot fluid passes through the baffles 7 above the partitions 5 and flows between the baffles 7 below the partitions 5. During this process, the hot fluid exchanges heat with the multiple tube bundles 6, heating the tube bundles 6. Finally, the hot fluid flows into the liquid outlet chamber below the partition 4 through the inner shell outlet 15, and flows out of the heat storage tank through the hot fluid outlet 16.

[0027] 2. Flow and heating of cold fluid: The chemical cold fluid that needs to be heated enters the corresponding distribution chamber 19 through the cold fluid inlet 17, and then enters the multiple tube bundles 6 above. During the flow in the tube bundles 6, the cold fluid exchanges heat with the chemical hot fluid through the tube bundle 6 wall, thereby being heated. The heated cold fluid continues to pass through the multiple tube bundles 6 below connected in the liquid storage chamber 10, and is finally discharged through the cold fluid outlet 18.

[0028] Maintenance and cleaning of heat storage tanks:

[0029] When it is necessary to clean or replace the components inside the thermal storage tank, simply remove the mounting cover 12, then open the sealing door 11, and then unscrew the threaded sleeve 8 on each tube bundle 6 to remove the liquid storage tank 10. At this point, the inner shell 2 can be pulled out for replacement and cleaning. This design makes the maintenance and cleaning of the thermal storage tank very convenient and quick.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shell-and-tube heat accumulator for use in chemical production, characterized in that: It includes outer shell (1), inner shell (2), compartment plate (3), partition one (4), partition two (5), liquid storage compartment (10), sealing door (11), mounting cover (12), hot fluid inlet (13), inner shell inlet (14), inner shell outlet (15), hot fluid outlet (16), cold fluid inlet (17), cold fluid outlet (18) and two infusion mechanism; The inner shell (2) is sealingly inserted and fixed with the inner wall of the outer shell (1), one end of the outer shell (1) is detachably connected with the mounting cover (12), the inner shell (2) is provided with the compartment plate (3), one side wall of the compartment plate (3) is fixed with the partition one (4) between the inner wall of the inner shell (2), the upper part of the partition one (4) forms a liquid inlet compartment, the lower part of the partition one (4) forms a liquid outlet compartment, the other side wall of the compartment plate (3) is fixedly connected with one end of the partition two (5), the side wall of the partition two (5) is fixedly connected with the inner wall of the inner shell (2), the upper part and the lower part of the partition two (5) are provided with the infusion mechanism, one end of each of the infusion mechanism is fixedly connected with the compartment plate (3), the other end of each of the infusion mechanism is sealingly inserted with the liquid storage compartment (10), the outer wall of the liquid storage compartment (10) is sealingly and detachably connected with the inner wall of the outer shell (1), the liquid storage compartment (10) is provided with the sealing door (11), the liquid inlet compartment is provided with the hot fluid inlet (13) and the inner shell inlet (14), the liquid outlet compartment is provided with the inner shell outlet (15) and the hot fluid outlet (16), the cold fluid inlet (17) is sealingly through the liquid inlet compartment and communicated with the corresponding infusion mechanism, the cold fluid outlet (18) is sealingly through the liquid outlet compartment and communicated with the other infusion mechanism.

2. The shell-and-tube heat accumulator for chemical production according to claim 1, characterized in that: Each of the infusion mechanism includes a shunt compartment (19), a plurality of tube bundles (6), a plurality of baffle plates (7), a plurality of threaded sleeves (8) and a plurality of sealing rings (9); The plurality of tube bundles (6) are arrayed, one end of each of the plurality of tube bundles (6) is fixedly communicated with the shunt compartment (19), the shunt compartment (19) is communicated with the corresponding cold fluid inlet (17) or cold fluid outlet (18), the liquid storage compartment (10) is provided with a sealing hole corresponding to each of the plurality of tube bundles (6), the other end of each of the plurality of tube bundles (6) is provided with an external thread, the other end of each of the plurality of tube bundles (6) is sealingly inserted into the corresponding sealing hole and fixed by the threaded sleeve (8), the sealing ring (9) is arranged between each of the threaded sleeves (8) and the inner wall of the liquid storage compartment (10), each of the sealing rings (9) is sleeved on the corresponding tube bundle (6), the plurality of baffle plates (7) are arranged along the axial direction and are staggered, the plurality of baffle plates (7) are fixedly connected with the adjacent partition two (5) or inner shell (2).

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