Stable heat exchanger for diesel hydrogenation device

Abstract

The utility model relates to a stable heat exchanger for a diesel hydrogenation device, which comprises a shell and a feeding component, and a hot material inlet is arranged at the upper part of the shell; the feeding assembly comprises a feeding part and a power part, the feeding part comprises a shell, the shell is arranged at the hot material inlet, a first support and a second support are arranged in the shell, a spiral blade is arranged between the first support and the second support, and one end of the spiral blade is rotationally connected with the second support; the power part comprises a motor, the motor is installed on the outer side of the first support, and an output shaft of the motor penetrates through the first support to be connected with the other end of the spiral blade and used for driving the spiral blade to rotate. According to the heat exchanger, the motor is used for driving the spiral blade to rotate, when hot materials enter the shell through the hot material inlet, the hot materials can enter the shell at a constant speed under the driving of the spiral blade, and the impact of the hot materials on the tube nests in the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stable heat exchangers, in particular to a stable heat exchanger for a diesel hydrogenation device. Background Art

[0002] Heat exchangers are devices that transfer part of the heat of hot fluid to cold fluid, also known as heat exchangers. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] At present, in the actual application of the stable heat exchanger for diesel hydrotreating unit, a diverter plate is set inside the hot material inlet to achieve the diversion of the hot material, so as to reduce the impact of the hot material on the tubes inside the shell. However, the hot material will still fall quickly in this way, and the effect of reducing the impact is limited, and it will still cause a large impact on the tubes inside the shell. Summary of the invention

[0004] In response to at least one of the problems in the above-mentioned prior art, the purpose of the present utility model is to provide a stable heat exchanger for a diesel hydrotreating device. When the material enters the shell through the hot material inlet, the hot material will enter the shell at a uniform speed driven by the spiral blades, thereby reducing the impact of the hot material on the internal tubes of the shell.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stable heat exchanger for a diesel hydrogenation unit, comprising:

[0007] A shell body, the upper portion of which is provided with a hot material inlet;

[0008] The feeding assembly includes a feeding part and a power part, the feeding part includes a shell, the shell is arranged at the hot material inlet, a first bracket and a second bracket are arranged in the shell, a spiral blade is arranged between the first bracket and the second bracket, one end of the spiral blade is rotatably connected to the second bracket; the power part includes a motor, the motor is installed on the outside of the first bracket, the output shaft of the motor passes through the first bracket and is connected to the other end of the spiral blade to drive the spiral blade to rotate.

[0009] Preferably, the power unit further includes a motor seat, the motor seat is installed on the outside of the first bracket, and the motor is arranged in the motor seat.

[0010] Preferably, a heat insulation layer is provided on the inner wall of the motor base.

[0011] Preferably, a slot is formed on the inner wall of the housing, and the first bracket and the second bracket are movably mounted in the slot.

[0012] Preferably, a heat exchange component is further included, the heat exchange component includes a cold material part and an evaporation part, the cold material part is installed at the bottom of the shell, and the evaporation part is installed at the top of the shell.

[0013] Preferably, the cold material portion comprises a lower head, the lower head is connected to the bottom of the shell, and a cold material inlet is arranged on the lower head.

[0014] Preferably, the evaporation portion comprises an upper head connected to the top of the shell, and the upper head is provided with an outlet.

[0015] Preferably, a fixed plate is disposed at the lower end of the shell, a movable plate is disposed at the upper end of the shell, and a plurality of tubes are evenly spaced apart between the fixed plate and the movable plate.

[0016] Preferably, it is characterized in that a plurality of spiral plates are provided on the inner wall of the shell.

[0017] Preferably, a mounting plate is provided at the middle portion of the exterior of the housing.

[0018] The utility model adopts the above technical solution, which has the following advantages:

[0019] 1. The utility model provides a stable heat exchanger for a diesel hydrogenation device, which uses a motor to drive the spiral blades to rotate.

[0020] When hot materials enter the shell through the hot material inlet, the hot materials will enter the shell at a uniform speed under the drive of the spiral blades, reducing the impact of the hot materials on the tubes inside the shell.

[0021] 2. The utility model provides a stable heat exchanger for a diesel hydrogenation device, wherein a spiral plate is arranged on the inner wall of the shell.

[0022] When the material enters the shell through the hot material inlet, the hot material slowly enters the bottom of the shell from the top of the shell, so that the hot material fully contacts the tubes, thereby achieving the effect of improving the heat exchange efficiency of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a stable heat exchanger for a diesel hydrogenation device provided in one embodiment of the utility model.

[0024] Figure 2 It is a front view of a stable heat exchanger for a diesel hydrotreating device provided in this embodiment of the utility model.

[0025] Figure 3It is a top view of the stable heat exchanger for the diesel hydrotreating device provided in this embodiment of the utility model.

[0026] Figure 4 This embodiment of the utility model provides Figure 2 A partial enlarged view of center A.

[0027] Figure 5 It is a schematic diagram of the end face structure of the feed assembly provided in this embodiment of the utility model.

[0028] Reference numerals in the figures:

[0029] 1 is a shell, 101 is a hot material outlet, 2 is a mounting plate, 3 is a feed assembly, 31 is a power unit, 311 is a motor seat, 312 is a motor, 313 is a heat insulation layer, 314 is a first bracket, 32 is a feed unit, 321 is a shell, 3211 is a slot, 322 is a spiral blade, 323 is a second bracket, 4 is a heat exchange assembly, 41 is a cold material unit, 411 is a lower head, 412 is a cold material inlet, 413 is a fixed plate, 414 is a tube array, 42 is an evaporation unit, 421 is a spiral plate, 422 is a movable plate, 423 is an upper head, and 424 is an outlet. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "assembly", "setting", and "connection" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The utility model provides a stable heat exchanger for a diesel hydrogenation device. When materials enter the shell through a hot material inlet, the hot materials enter the shell at a uniform speed driven by spiral blades, thereby reducing the impact of the hot materials on the tubes inside the shell.

[0034] Below, the embodiments of the utility model are described in detail with reference to the accompanying drawings.

[0035] Example

[0036] Please refer to Figures 1 to 5 , a stable heat exchanger for a diesel hydroprocessing device provided in this embodiment includes a shell 1;

[0037] The upper part of the shell 1 is provided with a hot material inlet; the outer middle part of the shell 1 is provided with a mounting plate 2, which can be fixedly mounted on the outer wall of the shell 1 by welding, and there are two mounting plates 2, which are symmetrically arranged at

[0038] The heat exchanger can be mounted on other structures through mounting plates 2 on both sides of the shell 1. A hot material outlet 101 is provided at the lower part of the shell 1.

[0039] The feeding assembly 3 includes a feeding part 32 and a power part 31. The feeding part 32 includes a shell 321. The end surface of the shell 321 is provided with a flange. The shell 321 is connected to the feeding mechanism of the hot material. The shell 321 is arranged at the inlet of the hot material. The first bracket 314 and the second bracket 323 are arranged in the shell 321. A spiral leaf 322 is arranged between the first bracket 314 and the second bracket 323. One end of the spiral leaf 322 is rotatably connected to the second bracket 323. The power part includes a motor 312. The motor 312 is installed on the outer side of the first bracket 232. The first bracket 232 is provided with a through hole. The output shaft of the motor 312 passes through the first bracket 314 through the through hole and is connected to the other end of the spiral leaf 322 to drive the spiral leaf 322 to rotate. The motor 312 is connected to the external power supply device. A lead hole can be provided on the shell 321. The cable of the motor 312 passes through the lead hole and is connected to the power supply device. Finally, the lead hole is sealed.

[0040] When the diesel hydrotreating device of this embodiment uses a stable heat exchanger, the motor 312 is started to drive the spiral blade 322 fixedly connected to the output shaft of the motor 312 to rotate at a uniform speed. When hot materials are fed in from the right end port of the shell 321, the spiral blade 322 stirs the fed hot materials and drives the hot materials into the shell 1. The uniform rotation of the spiral blade 322 can effectively slow down the speed at which the hot materials enter the shell 1, and make the hot materials enter the shell 1 at a certain uniform speed, thereby reducing the impact of the hot materials on the internal tubes of the shell 1, and achieving the effect of preventing the hot materials from having too much impact on the internal tubes of the shell 1; after the hot materials exchange heat with the tubes, they are discharged from the heat exchanger through the hot material outlet 101.

[0041] In a specific application, the shell 321 can be welded at the hot material inlet position of the shell 1, the first bracket 314 includes a central circular plate, three fixing rods are evenly spaced out of the circumference of the central circular plate, the central circular plate has a central hole, the output shaft of the motor 312 passes through the central hole and the spiral leaf 322; the second bracket 323 also includes a central circular plate, three fixing rods are evenly spaced out of the circumference of the central circular plate, the central circular plate has a central hole, and the other end of the spiral leaf 322 is rotatably connected to the central hole; the inner wall of the shell 321 is provided with three slots 3211 matching the three fixing rods, and the first bracket 314 and the second bracket 323 are movably installed in the slots 3211. The first bracket 314 and the second bracket 323 are connected to the shell 321 by a snap-fit ​​movably installed connection, which can be easily disassembled and installed, and thus convenient for cleaning the feed assembly 3.

[0042] In this embodiment, the power unit 31 further includes a motor seat 311 . The motor seat 311 is installed on the outside of the first bracket 314 , and the motor 312 is disposed inside the motor seat 311 .

[0043] In a specific application, the motor seat 311 is a cylindrical body, which is buckled on the outside of the motor 312 and can protect the motor 312 from the impact of the heat-absorbing material.

[0044] In this embodiment, a heat insulation layer 313 is disposed on the inner wall of the motor base 311 .

[0045] In a specific application, the heat insulation layer 313 is made of heat insulation cotton and is attached to the inner wall of the motor base 311 ; the motor 312 is fixedly installed inside the heat insulation layer 313 .

[0046] The provision of the heat insulation layer 313 can increase the service life of the motor 312 .

[0047] In this embodiment, the stable heat exchanger for the diesel hydrotreating device further includes a heat exchange component 4 , which includes a cold material portion 41 and an evaporation portion 42 . The cold material portion 41 is installed at the bottom of the shell 1 , and the evaporation portion 42 is installed at the top of the shell 1 .

[0048] In specific applications, the cold material part 41 includes a lower head 411, which is connected to the bottom of the shell 1. Specifically, the lower head 411 and the bottom of the shell 1 are connected by bolts to facilitate later disassembly and maintenance; a cold material inlet 412 is provided on the lower head 411, and the cold material inlet 412 is connected to the feeding mechanism of the cold material.

[0049] The evaporation section 42 includes an upper head 423 , which is connected to the top of the shell 1 . Specifically, the upper head 423 and the top of the shell 1 are connected by bolts to facilitate later disassembly and maintenance. The upper head 423 is provided with an outlet 424 .

[0050] In this embodiment, a fixed plate 413 is provided at the lower end of the shell 1. Specifically, the fixed plate 413 can be installed at the lower end of the shell 1 by welding; a movable plate 422 is provided at the upper end of the shell 1, and an annular step is provided at the top of the shell 1. The movable plate 422 is provided with an annular boss matching the annular step. The movable plate 422 can be limited by the annular step. When the upper head 423 is installed on the shell 1, its lower end surface can press the movable plate 422.

[0051] In this embodiment, a plurality of tubes 414 are evenly spaced between the fixed plate 413 and the movable plate 422 .

[0052] In specific applications, multiple tube mounting holes are provided on the fixed plate 413 and the movable plate 422, and the upper and lower ends of the tubes 414 are inserted into the tube mounting holes at the upper ends of the fixed plate 413 and the movable plate 422. The tubes 414 are sealed with the fixed plate 413 and the movable plate 422; the tubes 414 connect the upper head 423 at the upper end of the cylinder 1 and the lower head 411 at the lower end.

[0053] The cold material enters the lower head 411 from the cold material inlet 412 and enters the tube array 414; the hot material entering the shell 1 contacts the cold material inside the tube array 414 to transfer heat, and the steam generated by the cold material being heated enters the upper head 423 and is discharged through the outlet 424. A plurality of spiral plates 421 are provided on the inner wall of the shell 1. The arrangement of the spiral plates 421 allows the hot material to slowly enter the lower part of the shell 1 from the upper part of the shell 1, so that the hot material fully contacts the tube array 414, thereby improving the heat exchange rate.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A stable heat exchanger for a diesel hydrogenation unit, characterized in that: include: A shell body, the upper portion of which is provided with a hot material inlet; The feeding assembly includes a feeding part and a power part, the feeding part includes a shell, the shell is arranged at the hot material inlet, a first bracket and a second bracket are arranged in the shell, a spiral blade is arranged between the first bracket and the second bracket, one end of the spiral blade is rotatably connected to the second bracket; the power part includes a motor, the motor is installed on the outside of the first bracket, the output shaft of the motor passes through the first bracket and is connected to the other end of the spiral blade to drive the spiral blade to rotate.

2. The stable heat exchanger for diesel hydrotreating device according to claim 1, characterized in that: The power unit also includes a motor seat, which is installed on the outside of the first bracket and the motor is arranged in the motor seat.

3. The stable heat exchanger for a diesel hydroprocessing unit according to claim 2, characterized in that: The inner wall of the motor base is provided with a heat insulation layer.

4. The stable heat exchanger for a diesel hydroprocessing unit according to claim 1, characterized in that: The inner wall of the shell is provided with a slot, and the first bracket and the second bracket are movably installed in the slot.

5. The stable heat exchanger for a diesel hydroprocessing unit according to claim 1, characterized in that: It also includes a heat exchange component, which includes a cold material part and an evaporation part. The cold material part is installed at the bottom of the shell, and the evaporation part is installed at the top of the shell.

6. The stable heat exchanger for a diesel hydroprocessing unit according to claim 5, characterized in that: The cold material portion comprises a lower sealing head, the lower sealing head is connected to the bottom of the shell, and a cold material inlet is arranged on the lower sealing head.

7. The stable heat exchanger for a diesel hydroprocessing unit according to claim 5, characterized in that: The evaporation part comprises an upper head connected to the top of the shell, and the upper head is provided with an outlet.

8. The stable heat exchanger for a diesel hydroprocessing unit according to claim 5, characterized in that: A fixed plate is arranged at the lower end of the shell, a movable plate is arranged at the upper end of the shell, and a plurality of tubes are evenly spaced between the fixed plate and the movable plate.

9. The stable heat exchanger for a diesel hydroprocessing unit according to claim 5, characterized in that: A plurality of spiral plates are arranged on the inner wall of the shell.

10. The stable heat exchanger for a diesel hydroprocessing device according to claim 1, characterized in that: A mounting plate is arranged at the middle portion of the exterior of the housing.

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