Heat exchange device for alcohol amine production

Abstract

The utility model relates to the technical field of heat exchange devices, and discloses a heat exchange device for alcohol amine production, which comprises a shell, a plurality of partition plates are fixedly connected to the inner bottom wall of the shell, a plurality of upward baffle plates are fixedly connected to the adjacent sides of the partition plates, downward baffle plates are fixedly connected to the right sides of the upward baffle plates, and the downward baffle plates are fixedly connected to the right sides of the downward baffle plates. The top of the upward baffle plate and the top of the upward baffle plate are each fixedly connected with two pipe supports, the tops of the multiple pipe supports are each fixedly connected with a heat exchange pipe bundle, the outer walls of the multiple heat exchange pipe bundles are each fixedly connected with an anti-corrosion coating, and the left side of the inner wall of the shell is fixedly connected with a gas bin. According to the heat exchange device, the isolated independent chambers are used for heat exchange, and the baffle plates are used for further partitioning in each independent chamber, so that the flowing path of fluid is longer, the heat exchange tube bundle can have more time for heat exchange treatment, and the heat exchange efficiency of the heat exchange device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange device for alcohol amine production. Background Art

[0002] A heat exchanger is an important piece of equipment that achieves efficient energy utilization by transferring heat between fluids of different temperatures. It is usually composed of heat exchange elements and a shell. It is widely used in industrial production and energy fields. It can effectively reduce energy consumption, improve production efficiency, and play a key role in the stable operation of various industries.

[0003] In the production process of alkanolamines, heat exchange devices play a vital role. Heat exchange devices used in alkanolamine production can efficiently exchange heat and improve energy utilization. They are composed of heat exchange elements and pipelines, ensuring that alkanolamines react at a suitable temperature, improving product quality, and providing strong guarantees for the stable production of alkanolamines.

[0004] At present, there are many heat exchange devices on the market, such as plate heat exchangers, shell and tube heat exchangers, etc. These devices can meet production needs to a certain extent, but the heat exchange efficiency is still relatively low, resulting in a large amount of heat being wasted. Therefore, a heat exchange device for amine production is proposed. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a heat exchange device for alcoholamine production, which aims to improve the problem of low heat exchange efficiency in the prior art leading to energy waste in the alcoholamine production process.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a heat exchange device for the production of alcohol amines, comprising a shell, the inner bottom wall of the shell is fixedly connected to a plurality of partitions, the adjacent sides of the plurality of partitions are fixedly connected to a plurality of upward deflectors, the right sides of the plurality of upward deflectors are fixedly connected to a downward deflector, the tops of the upward deflectors and the upward deflectors are fixedly connected to two pipe supports, the tops of the plurality of pipe supports are fixedly connected to a heat exchange tube bundle, the outer walls of the plurality of heat exchange tube bundles are fixedly connected to an anti-corrosion coating, the left side of the inner wall of the shell is fixedly connected to an air bin, the right side of the air bin is provided with an air hole, and the left and right sides of the shell are provided with a replacement mechanism, which is used to filter and ventilate the gas passing through pipes of different sizes.

[0007] Through the above technical solution: the partition divides the internal area into multiple independent chambers, the upward deflector and the downward deflector make the gas flow path inside the shell longer, thereby improving the heat exchange efficiency. At the same time, the tube bracket supports the heat exchange tube bundle, and the heat exchange tube bundle exchanges heat with the air. The presence of the air chamber and the air holes increases the turbulence intensity of the cold air when it enters, thereby further improving its heat exchange efficiency.

[0008] As a further description of the above technical solution:

[0009] The replacement mechanism includes two first air pipes, the left side of the outer wall of the two first air pipes is provided with a first thread, the right side of the outer wall of the two first air pipes is provided with a second thread, the side away from the two first air pipes is threadedly connected to the second air pipe, the right side of the two second air pipes is threadedly connected to the third air pipe, the inner walls of the two third air pipes are threadedly connected to the filter screen, and the interior of the two filter screens is provided with filter holes.

[0010] Through the above technical solution: the first air pipe is the largest air pipe, which can be connected to large-sized air pipes, the second air pipe is second, and the third air pipe is third. The air pipes are connected by the first thread, and through their mutual cooperation, they can be connected to equipment air pipes of different sizes.

[0011] As a further description of the above technical solution:

[0012] The anti-corrosion coating is evenly distributed on the surface of the heat exchange tube bundle, and the anti-corrosion coating is polytetrafluoroethylene.

[0013] Through the above technical solution: the anti-corrosion coating is evenly distributed to increase its corrosion resistance and extend the service life of the equipment.

[0014] As a further description of the above technical solution:

[0015] A manhole is provided on the top of the shell, and a cover plate is provided on the top of the manhole.

[0016] Through the above technical solution: providing structures such as manholes, the maintenance work of the heat exchange device is simplified, making it more convenient for workers to enter the device.

[0017] As a further description of the above technical solution:

[0018] A rotating handle is fixedly connected to the top of the cover plate, and an observation window is opened on the top of the cover plate.

[0019] Through the above technical solution: the rotating handle makes it easier for the staff to open the cover, and the observation window makes it easier for the staff to observe the operation of the equipment.

[0020] As a further description of the above technical solution:

[0021] A straight ladder is provided inside the shell, and the length of the straight ladder is consistent with the height of the shell.

[0022] Through the above technical solution: the existence of the straight ladder makes it convenient for workers to enter and exit the equipment, thereby improving their efficiency in repairing the equipment.

[0023] As a further description of the above technical solution:

[0024] The outer walls of the two third air pipes are both threadedly connected with flanges, and the interiors of the two flanges are both provided with screw holes.

[0025] Through the above technical solution: the flange can make it easier for the device to connect to the gas pipe of the heat exchange gas, and the presence of the screw hole makes the connection more secure.

[0026] As a further description of the above technical solution:

[0027] Adjacent positions of the plurality of heat exchange tube bundles are staggered, and the material of the plurality of heat exchange tube bundles is titanium alloy.

[0028] Through the above technical solution, adjacent positions of the heat exchange tube bundles are staggered to increase the turbulence of the fluid in the shell.

[0029] The utility model has the following beneficial effects:

[0030] 1. In the present invention, when heat exchange is required during the production process, the high-temperature gas to be heat exchanged is added from the air inlet pipe. At this time, the high-temperature gas will be heat exchanged in independent chambers separated by multiple partitions. The baffles further separate each independent chamber and can make the flow path of the fluid longer, so that the heat exchange tube bundle can have more time for heat exchange processing, thereby greatly improving the heat exchange efficiency of the heat exchange device.

[0031] 2. In the present invention, when the heat exchange device needs to exchange heat for alcohol amine production, when it needs to connect to a larger diameter air pipe, the third air pipe is twisted to make the second air pipe the outermost air pipe. When it needs to connect to a large diameter air pipe, the second air pipe is twisted to make the first air pipe the outermost air pipe layer. At the same time, a matching filter is installed so that it can match air pipes of different models and sizes for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a three-dimensional diagram of a heat exchange device for alcoholamine production proposed by the present invention, with the top cover removed;

[0033] Figure 2 This is a schematic diagram of the internal structure of a heat exchange device for alcoholamine production proposed in the present invention;

[0034] Figure 3 This is a disassembled diagram of the replacement mechanism of a heat exchange device for alcoholamine production proposed in the utility model;

[0035] Figure 4 This is a perspective view of the uncovered side of a heat exchange device for alcoholamine production proposed by the present invention;

[0036] Figure 5This is a side view without a casing of a heat exchange device for alcoholamine production proposed by the present invention;

[0037] Figure 6 This is a three-dimensional diagram of a heat exchange device for alcoholamine production proposed by the utility model.

[0038] Legend:

[0039] 1. Shell; 2. Partition; 3. Upward deflector; 4. Downward deflector; 5. Pipe support; 6. Heat exchange tube bundle; 7. Anti-corrosion coating; 8. Gas chamber; 9. Air hole; 10. Replacement mechanism; 1001. First air pipe; 1002. First thread; 1003. Second thread; 1004. Second air pipe; 1005. Third air pipe; 1006. Flange; 1007. Screw hole; 1008. Filter; 1009. Filter hole; 11. Manhole; 12. Cover; 13. Rotating handle; 14. Observation window; 15. Ladder. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Reference Figure 1 、 Figure 2 and Figure 5 , the utility model provides an embodiment: a heat exchange device for alcoholamine production, comprising a shell 1, a plurality of partitions 2 are fixedly connected to the inner bottom wall of the shell 1, a plurality of upward baffles 3 are fixedly connected to the adjacent sides of the plurality of partitions 2, a downward baffle 4 is fixedly connected to the right side of the plurality of upward baffles 3, the upward baffles 3 and the top of the upward baffle 3 are fixedly connected to two pipe supports 5, the tops of the plurality of pipe supports 5 are fixedly connected to a heat exchange tube bundle 6, the outer walls of the plurality of heat exchange tube bundles 6 are fixedly connected to an anti-corrosion coating 7, the anti-corrosion coating 7 is evenly distributed on the surface of the heat exchange tube bundle 6, the adjacent positions of the plurality of heat exchange tube bundles 6 are staggered, the material of the plurality of heat exchange tube bundles 6 is titanium alloy, and the anti-corrosion coating 7 is polytetrafluoroethylene, an air bin 8 is fixedly connected to the left side of the inner wall of the shell 1, an air hole 9 is opened on the right side of the air bin 8, and a replacement mechanism 10 is provided on the left and right sides of the shell 1, and the replacement mechanism 10 is used to filter and ventilate the gas passing through pipes of different sizes;

[0042] Specifically, in the process of amine production, the heat exchange link plays a vital role. When the gas involved is hot gas, the trachea outlet of the amine production equipment can be precisely connected to the third trachea 1005 located on the upper side of the device through the sturdy flange 1006 on the device, and the air outlet is set to the trachea located on the lower side of the equipment. The hot gas continuously enters the interior of the shell 1 through the third trachea 1005. Due to the presence of the partition 2 in the shell 1, its interior is divided into multiple independent spaces. In this way, the hot air exchanges heat in these isolated spaces. During the flow, the hot air will pass through the angled upward deflector 3 and the downward deflector 4. The presence of these deflectors makes the internal flow path of the hot air in the shell 1 longer. The heat exchange tube bundles 6 in adjacent areas are staggered, which further increases the flow path and turbulence of this part of the heat in the shell 1. Through such a design, the heat exchange efficiency is greatly improved, and the surface anti-corrosion coating 7 of the heat exchange tube bundle 6 is uniformly coated The uniform distribution increases its corrosion resistance and extends the service life of the equipment. As the hot gas flows in the heat exchange tube bundle 6, its temperature gradually decreases. According to the principles of thermodynamics, the gas with low temperature has a tendency to move downward. The cooled hot gas will enter the gas bin 8 through the air holes 9 on the gas bin 8 and finally be discharged through the lower air pipe, thereby successfully completing the heat exchange process of the hot gas. When the gas generated in the process of amine production is cold gas, the air pipe on the lower side is used as the air inlet. After the cold air enters the gas bin 8, it begins to move downward and can be discharged through the air holes 9. This flow mode increases the turbulence intensity, thereby making the heat exchange efficiency of the heat exchange tube bundle 6 higher during the heat exchange process. As the heat exchange proceeds, the temperature of the cold gas gradually increases. After the heat exchange is completed, the gas with increased temperature moves upward and can be more easily discharged from the air pipe on the upper side. In this way, the heat exchange efficiency of the equipment is greatly improved, providing an efficient and reliable solution for gas heat exchange in the amine production process.

[0043] Reference Figure 1 and Figure 3 The replacement mechanism 10 includes two first air pipes 1001, the left side of the outer wall of the two first air pipes 1001 is provided with a first thread 1002, the right side of the outer wall of the two first air pipes 1001 is provided with a second thread 1003, the side away from the two first air pipes 1001 is threadedly connected to the second air pipe 1004, the right side of the two second air pipes 1004 is threadedly connected to the third air pipe 1005, the inner walls of the two third air pipes 1005 are threadedly connected to the filter screen 1008, the interior of the two filter screens 1008 is provided with a filter hole 1009, the outer walls of the two third air pipes 1005 are threadedly connected to the flange 1006, and the interior of the two flanges 1006 is provided with a screw hole 1007;

[0044] Specifically, in the actual production process of ethanolamines, it is often necessary to connect air pipes in ethanolamine equipment of different sizes. At this time, the third air pipe 1005 can be screwed to make the second air pipe 1004 the outermost air pipe. This operation can flexibly adjust the outer diameter of the air pipe to adapt to different docking requirements. When it is necessary to connect a large-diameter air pipe, the second air pipe 1004 is further screwed to make the first air pipe 1001 the outermost air pipe layer. This nested design provides great convenience for dealing with air pipes of various sizes. Since these air pipes have threads inside, air pipes of different sizes can be installed with filters 1008 of different sizes that match them. In the process of gas passing through the air pipe, the filter 1008 can effectively filter the gas, remove impurities and particulate matter therein, and ensure the purity of the gas entering subsequent equipment or process links. The second thread 1003 on the outer wall of the air pipe allows the air pipe to be threadedly connected to the flange 1006 when it is the outermost air pipe. In this way, gas pipes of different models and sizes can be tightly connected to ensure that there will be no leakage of gas during the transmission process. By using gas pipes of different sizes in conjunction with each other, it is possible to complete the docking of gas pipes of different sizes in the alkanolamine equipment, providing reliable protection for gas transmission in the alkanolamine production process.

[0045] Reference Figure 1 、 Figure 4 and Figure 6 A manhole 11 is provided on the top of the shell 1, a cover plate 12 is provided on the top of the manhole 11, a rotating handle 13 is fixedly connected to the top of the cover plate 12, an observation window 14 is provided on the top of the cover plate 12, and a straight ladder 15 is provided inside the shell 1, and the length of the straight ladder 15 is consistent with the height of the shell 1;

[0046] Specifically, by opening the cover 12, the interior of the shell 1 can be easily entered for maintenance and cleaning. At the same time, the observation window 14 set at the manhole 11 can facilitate observation of the operation status inside the shell 1 at any time. The presence of the straight ladder 15 makes it more convenient for staff to enter the interior of the equipment for maintenance.

[0047] Working principle: During the production of alcohol amines, when the gas needs to be heat exchanged, when the gas is hot gas, the air pipe port of the alcohol amine production equipment is connected to the third air pipe 1005 located on the upper side of the device through the flange 1006 of the device, and the air outlet is the air pipe located on the lower side of the device. At this time, the hot gas enters the shell 1 through the third air pipe 1005. At this time, the shell 1 is divided into multiple independent spaces due to the presence of the partition 2. Thus, the hot air exchanges heat in spaces isolated from each other. The hot air passes through the angled upward deflector 3 and the downward deflector 4, making its internal flow path longer. At the same time, the heat exchange tube bundles 6 in adjacent areas are staggered, which increases the flow path of this part of the heat in the shell 1. The diameter and turbulence degree are improved, thereby improving the heat exchange efficiency. The temperature of the hot gas passing through the heat exchange tube bundle 6 decreases. According to the principle of thermodynamics, the low-temperature gas moves downward, and at this time enters the gas bin 8 through the air holes 9 on the gas bin 8, and is finally discharged through the lower air pipe, thereby completing the heat exchange of the gas. When the gas generated in the process of alcoholamine production is cold gas, the air pipe on the lower side is used as the air inlet. The cold air enters the gas bin 8 and begins to move downward, and then can be discharged through the air holes 9, thereby increasing the turbulence intensity, thereby making the heat exchange efficiency of the heat exchange tube bundle 6 higher during the heat exchange process. After the heat exchange is completed, its temperature rises and moves upward, and then it can be more easily discharged from the air pipe on the upper side, thereby improving the heat exchange efficiency of the equipment;

[0048] When it is necessary to connect air pipes in amine equipment of different sizes, the third air pipe 1005 is screwed to make the second air pipe 1004 the outermost air pipe. When it is necessary to connect large-diameter air pipes, the second air pipe 1004 is screwed to make the first air pipe 1001 the outermost air pipe layer. At the same time, since there are threads inside the air pipes, air pipes of different sizes can be installed with filters 1008 of different sizes, thereby completing the filtration of the gas. The second thread 1003 on the outer wall allows the air pipe to be threadedly connected to the flange 1006 when it is used as the outermost air pipe, so that it can be matched with air pipes of different models and sizes for use. By using air pipes of different sizes in combination, air pipes of different sizes in the amine equipment can be connected.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat exchange device for producing alcoholamines, comprising a housing (1), characterized in that: The inner bottom wall of the shell (1) is fixedly connected to a plurality of partitions (2), and adjacent sides of the plurality of partitions (2) are fixedly connected to a plurality of upward deflectors (3), and the right sides of the plurality of upward deflectors (3) are fixedly connected to a downward deflector (4), and the tops of the upward deflectors (3) and the upward deflectors (3) are fixedly connected to two pipe supports (5), and the tops of the plurality of pipe supports (5) are fixedly connected to a heat exchange tube bundle (6), and the outer walls of the plurality of heat exchange tube bundles (6) are fixedly connected to an anti-corrosion coating (7), and the left side of the inner wall of the shell (1) is fixedly connected to an air bin (8), and an air hole (9) is opened on the right side of the air bin (8). A replacement mechanism (10) is provided on the left and right sides of the shell (1), and the replacement mechanism (10) is used to filter and ventilate the gas passing through pipes of different sizes.

2. A heat exchange device for producing alcoholamines according to claim 1, characterized in that: The replacement mechanism (10) comprises two first air pipes (1001), the left side of the outer wall of the two first air pipes (1001) is provided with a first thread (1002), the right side of the outer wall of the two first air pipes (1001) is provided with a second thread (1003), the side away from each other of the two first air pipes (1001) is threadedly connected to the second air pipe (1004), the right side of the two second air pipes (1004) is threadedly connected to the third air pipe (1005), the inner wall of the two third air pipes (1005) is threadedly connected to the filter screen (1008), and the interior of the two filter screens (1008) is provided with a filter hole (1009).

3. The heat exchange device for producing alcoholamines according to claim 1, characterized in that: The anti-corrosion coating (7) is evenly distributed on the surface of the heat exchange tube bundle (6), and the anti-corrosion coating (7) is polytetrafluoroethylene.

4. The heat exchange device for producing alcoholamines according to claim 1, characterized in that: A manhole (11) is provided on the top of the shell (1), and a cover plate (12) is provided on the top of the manhole (11).

5. A heat exchange device for producing alcoholamines according to claim 4, characterized in that: A rotating handle (13) is fixedly connected to the top of the cover plate (12), and an observation window (14) is provided on the top of the cover plate (12).

6. A heat exchange device for producing alcoholamines according to claim 1, characterized in that: A straight ladder (15) is provided inside the housing (1), and the length of the straight ladder (15) is consistent with the height of the housing (1).

7. A heat exchange device for producing alcoholamines according to claim 2, characterized in that: The outer walls of the two third air pipes (1005) are both threadedly connected to flanges (1006), and screw holes (1007) are provided inside the two flanges (1006).

8. The heat exchange device for producing alcoholamines according to claim 1, characterized in that: Adjacent positions of the plurality of heat exchange tube bundles (6) are staggered, and the material of the plurality of heat exchange tube bundles (6) is titanium alloy.

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