Small liquid volume low gas phase hydrogenation reactor internals

Abstract

The utility model relates to hydrogenation reactor inner component technical field, concretely relates to a small liquid volume low gas phase hydrogenation reactor inner component, include: shell, chamber and processing module, processing module is by main pipe, liquid distributor, branch pipe, distribution disc, gas liquid distributor, separation module and liquid outlet pipe constitute, and the main pipe one end is worn in the shell and is linked with liquid distributor, and the branch pipe export is located in the distribution disc area, and the gas liquid distributor is worn distribution disc, and the separation module is fixed in the shell inboard wall and is linked with liquid outlet pipe. Advantageous effect lies in, this structure realizes gas liquid even distribution and high -efficient mixing in compact space, reduces the ditch and the dead volume, improves the stability and the operating safety of reaction process. The utility model discloses a chamber and processing module are set up in the shell, realized the gas liquid even distribution and mixing in compact space, improved the stability of reaction process.

Description

Technical Field

[0001] This utility model relates to the technical field of internal components of hydrogenation reactors, and more specifically, to an internal component of a hydrogenation reactor with small liquid volume and low gas phase. Background Technology

[0002] Hydrogenation reactors are key equipment in petrochemical and coal chemical industries. They typically operate under high temperature, high pressure, and hydrogen-rich environments. By adding hydrogen to the reactants, unsaturated compounds are converted into saturated compounds, and impurities such as sulfur, nitrogen, and halogens are removed, thereby improving the cleanliness and physicochemical properties of the oil. In petroleum refining, hydrogenation reactors can improve fuel oil quality, and in coal chemical industries, they can be used for coal liquefaction and waste plastic degradation, reducing environmental pollution. However, hydrogenation reactors operate under harsh conditions, and the materials are highly hazardous. Fluctuations in feed or equipment failure can not only cause a decrease in reaction rate but may also lead to safety accidents. Catalysts are prone to deactivation due to impurity deposition or high-temperature sintering during long-term use, requiring frequent replacement or regeneration, thus increasing operating costs.

[0003] In recent years, small-volume, low-gas-phase hydrogenation reactors have gradually attracted attention due to their advantages such as small liquid holdup, high safety, and controllable reaction efficiency. However, under low gas velocity conditions, existing devices are prone to channeling and dead volume in the gas-liquid two-phase system, leading to overheating or conversion rate fluctuations in local areas and affecting the stability of the reaction process. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by proposing an internal component for a small liquid volume, low gas phase hydrogenation reactor. The aim is to solve the problem that existing small liquid volume, low gas phase hydrogenation reactors are prone to uneven gas-liquid distribution, channeling, and dead volume under low gas velocity conditions, which can lead to local overheating or conversion rate fluctuations.

[0005] This utility model provides an internal component for a small-volume, low-gas-phase hydrogenation reactor, including: The housing comprises a chamber and a processing module disposed within the housing, the processing module being disposed within the chamber; The processing module includes a main pipe, a liquid distributor, branch pipes, a distribution plate, a gas-liquid distributor, a separation module, and an outlet pipe. One end of the main pipe passes through the outer casing, and the other end of the main pipe is connected to the liquid distributor. One end of the branch pipe is connected to the liquid distributor, and the other end is disposed on the distribution plate. The gas-liquid distributor passes through the distribution plate. The separation module is connected to the inner wall of the outer casing, and one end of the outlet pipe is connected to the separation module.

[0006] Furthermore, the outer casing is also provided with a liquid inlet and a liquid outlet, which are disposed on the side wall of the outer casing. The liquid inlet is connected to one end of the main pipe, and the liquid outlet is connected to the other end of the liquid outlet pipe.

[0007] Furthermore, the cavity is provided with a plurality of first connectors and second connectors, both of which are connected to the side wall of the outer shell.

[0008] Furthermore, a third connector is provided on the outer wall of the branch pipe, the third connector being connected to one end of the fourth connector, and the first connector being connected to the other end of the fourth connector.

[0009] Furthermore, a pipe connector is provided on the outer wall of the main pipe, the pipe connector being used to connect the main pipe.

[0010] Furthermore, the distribution disk is connected to the second connector, which is a ring structure.

[0011] Furthermore, the second connector is provided with a first gasket, which is located at the connection between the distribution disc and the second connector, and the first gasket has a circular ring structure.

[0012] Furthermore, the distribution disk is provided with a plurality of distribution units, and each of the plurality of distribution units is connected to a fifth connector, which is located at the center of the distribution disk.

[0013] Furthermore, a second gasket is provided at the connection between the fifth connector and the distribution disk, and the second gasket has a circular ring structure.

[0014] Furthermore, the distribution unit is provided with a weir plate, a base plate, a first mounting hole, a second mounting hole, and a third mounting hole. The weir plate is connected to the base plate. Both the first mounting hole and the second mounting hole pass through the base plate. The first mounting hole is connected to a second connector, the second mounting hole is connected to the gas-liquid distributor, and the third mounting hole is connected to the third mounting hole of the adjacent distribution unit. Compared with the prior art, the advantages of this utility model are as follows: by setting a chamber and processing module inside the shell, the overall layout is more compact, reducing the complexity of the external pipeline structure and lowering the size and processing difficulty of the device; one end of the main pipe passes through the shell and is connected to the liquid distributor, forming a clear and stable liquid supply channel, ensuring the uniformity and continuity of the feeding process; the branch pipe outlet is located on the distribution plate, allowing the liquid flow to spread within the distribution plate area, and in conjunction with the gas-liquid distributor passing through the distribution plate, enabling the gas and liquid to achieve on-site contact and mixing at a fixed plane position, thereby avoiding channeling and dead volume phenomena that are prone to occur under low gas velocity conditions, and improving the uniformity and contact efficiency of gas-liquid distribution; the separation module is fixedly connected to the inner wall of the shell, so that the gas-liquid mixture flow after passing through the distribution plate area is redistributed and stabilized before entering the liquid outlet pipe, preventing turbulence and accumulation, and enhancing the controllability of downstream flow; the liquid outlet pipe is connected to the separation module, which can quickly discharge the processed material, reducing the ineffective stagnant volume in the chamber and the risk of local overheating. In summary, this structure effectively improves the uniformity of gas-liquid distribution and mixing efficiency under conditions of small liquid volume and low gas phase. Attached Figure Description

[0015] Figure 1 A front view of the internal components of the small liquid volume, low gas phase hydrogenation reactor provided in an embodiment of this utility model.

[0016] Figure 2 A front view of the connection between the main pipe and the branch pipe provided in an embodiment of this utility model.

[0017] Figure 3 A top view of the connection between the main pipe and the branch pipe provided in an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of area A provided for an embodiment of the present utility model.

[0019] Figure 5 A front view showing the connection between the distribution plate and the gas-liquid distributor provided in an embodiment of this utility model.

[0020] Figure 6 This is a top view showing the connection between the distribution plate and the gas-liquid distributor in an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the overall structure of the distribution unit provided in an embodiment of the present utility model.

[0022] Wherein: 10, outer shell; 101, chamber; 102, liquid inlet; 103, liquid outlet; 104, first connector; 105, second connector; 106, first gasket; 107, separation module; 108, liquid outlet pipe; 20, main pipe; 201, liquid distributor; 202, pipe connector; 30, branch pipe; 301, third connector; 302, fourth connector; 40, distribution plate; 400, distribution unit; 401, weir plate; 402, gas-liquid distributor; 403, fifth connector; 404, second gasket; 405, base plate; 406, first mounting hole; 407, second mounting hole; 408, third mounting hole. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this application, it should be noted that, in some embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] like Figure 1-7As shown, a preferred embodiment of the present invention provides an internal component of a small-volume, low-gas-phase hydrogenation reactor, comprising: The outer casing 10 includes a chamber 101 disposed inside the outer casing 10 and a processing module, with the processing module disposed inside the chamber 101. The processing module includes a main pipe 20, a liquid distributor 201, a branch pipe 30, a distribution plate 40, a gas-liquid distributor 402, a separation module 107, and an outlet pipe 108. One end of the main pipe 20 passes through the outer casing 10, and the other end of the main pipe 20 is connected to the liquid distributor 201. One end of the branch pipe 30 is connected to the liquid distributor 201, and the other end is set on the distribution plate 40. The gas-liquid distributor 402 passes through the distribution plate 40. The separation module 107 is connected to the inner wall of the outer casing 10, and one end of the outlet pipe 108 is connected to the separation module 107.

[0028] It should be noted that the outer casing 10, the chamber 101 located within the outer casing 10, and the processing module disposed within the chamber 101; the processing module consists of a main pipe 20, a liquid distributor 201, branch pipes 30, a distribution plate 40, a gas-liquid distributor 402, a separation module 107, and an outlet pipe 108: one end of the main pipe 20 passes through the outer casing 10 and communicates with the external liquid inlet, and the other end is connected to the liquid distributor 201, forming a controlled liquid supply path from a single inlet to multiple branch pipes 30, reducing inlet backflow and local impact; the liquid distributor 201 quantitatively distributes the incoming liquid to multiple branch pipes 30, and the inlet of each branch pipe 30 is located above the distribution plate 40, realizing the area-array spray of liquid above the distribution plate 40 through spatial arrangement, avoiding the assembly problems caused by the hard connection between the branch pipes 30 and the distribution plate 40. The system restricts liquid flow while ensuring that the liquid flow covers the entire distribution plate 40 area, thereby reducing channeling and dead zones and improving lateral coverage under low liquid volume conditions. The gas-liquid distributor 402 passes through the distribution plate 40, allowing the gas phase to contact the liquid flow injected from the branch pipe 30 at the distribution plate 40 on the same plane and enter the downstream, achieving short-path, high-speed interphase mixing, reducing mixing path uncertainty and improving primary mass transfer efficiency. The separation module 107 is connected to the inner wall of the outer shell 10, playing a role in fixing and reorganizing the flow pattern, spatially reorganizing and separating the downstream mixture flow, avoiding eddy current accumulation and stabilizing the flow state. One end of the liquid outlet pipe 108 is connected to the separation module 107, promptly exiting the material after distribution, mixing and separation from the chamber 101, shortening the ineffective residence time of the liquid. Through the above structure, uniform liquid distribution, controllable mixing and efficient discharge can be achieved under low liquid volume and low gas phase conditions, improving the gas-liquid contact area and utilization rate, reducing conversion fluctuations caused by uneven distribution, and taking into account the installation stability and operational safety of the device.

[0029] In some embodiments of this application, the outer casing 10 is further provided with a liquid inlet 102 and a liquid outlet 103, which are disposed on the side wall of the outer casing 10. The liquid inlet 102 is connected to one end of the main pipe 20, and the liquid outlet 103 is connected to the other end of the liquid outlet pipe 108.

[0030] It should be noted that the liquid inlet 102 and liquid outlet 103 are directly set on the side wall of the outer casing 10, so that the input and output of materials no longer need to be arranged around the top or bottom, making the structure more compact. The liquid inlet 102 is connected to one end of the main pipe 20, which can quickly introduce external materials into the main pipe 20 and into the liquid distributor 201, ensuring the stability and uniformity of the feeding process. The liquid outlet 103 is connected to the other end of the liquid outlet pipe 108, which allows the fluid processed by the gas-liquid mixing and separation module 107 to be discharged smoothly, avoiding pressure drop or local overheating due to liquid retention. Through the bidirectional channel design of the side wall, not only is the length of the internal flow path reduced, but the convenience of maintenance and installation flexibility of the device are also improved. Thus, under the conditions of small liquid volume and low gas phase operation, the uniformity of gas-liquid distribution and the continuity of the reaction process are further guaranteed, improving the overall safety and efficiency of operation.

[0031] In some embodiments of this application, a plurality of first connectors 104 and second connectors 105 are provided in the chamber 101, and both the first connectors 104 and the second connectors 105 are connected to the side wall of the outer shell 10.

[0032] It should be noted that both the first connector 104 and the second connector 105 are connected to the side wall of the outer casing 10. Both the first connector 104 and the second connector 105 serve to bear weight and provide fixation, forming a stable support frame inside the chamber 101. Through the combined arrangement of the first connector 104 and the second connector 105, the weight of the processing module and the vibration load during fluid flow can be evenly transferred to the outer casing 10, avoiding loosening or displacement caused by excessive force on a single fixed point. Simultaneously, the multi-point distribution of the first connector 104 and the second connector 105 ensures that the internal components maintain relative positional stability under high temperature and high pressure conditions, guaranteeing the installation accuracy and operational reliability of structures such as the main pipe 20, the distribution plate 40, and the separation module 107. This maintains the uniformity of gas-liquid distribution and the continuous stability of the reaction process under low liquid volume and low gas phase operating conditions.

[0033] In some embodiments of this application, a third connector 301 is provided on the outer side wall of the branch pipe 30. The third connector 301 is connected to one end of the fourth connector 302, and the first connector 104 is connected to the other end of the fourth connector 302.

[0034] It should be noted that a third connector 301 is provided on the outer wall of the branch pipe 30. One end of the third connector 301 is connected to one end of the fourth connector 302, and the other end of the fourth connector 302 is connected to the first connector 104, thus forming a continuous fixed chain from the branch pipe 30—the third connector 301—the fourth connector 302—the first connector 104—the side wall of the outer casing 10. Since the outlet of the branch pipe 30 is only located above the distribution plate 40 and is not directly connected to the distribution plate 40 or the liquid distributor 201, the stability of the branch pipe 30 cannot be guaranteed by the vertical position alone. The bridging effect of the third connector 301 and the fourth connector 302 is necessary to firmly fix the branch pipe 30. The first connector 104 anchors the fourth connector 302 to the side wall of the outer casing 10, so that the branch pipe 30 maintains an accurate liquid outlet position under fluid impact, pressure fluctuation, or vibration load, preventing the outlet of the branch pipe 30 from shifting or swinging, and ensuring that the liquid distribution range on the distribution plate 40 remains constant. This structure effectively improves the uniformity of the distribution of the branch pipes 30 and the stability of the fluid jet, thereby ensuring the accuracy of liquid distribution and the controllability of the reaction process under conditions of small liquid volume and low gas phase.

[0035] In some embodiments of this application, a pipe connector 202 is provided on the outer side wall of the main pipe 20, and the pipe connector 202 is used to connect the main pipe 20.

[0036] It should be noted that the outer wall of the main pipe 20 is equipped with a pipe connector 202, which consists of two flanges for reliably connecting two adjacent main pipes 20. The face-to-face bolt fixing of the flanges ensures a secure connection of the main pipes 20 while maintaining airtightness, preventing axial displacement or leakage when subjected to high-pressure liquid inlet and pulsating loads. The connection between the two flanges not only facilitates the extension and combination of the main pipes 20 but also allows for quick disassembly during maintenance or replacement, improving the maintenance efficiency and operability of the device. Because the flange connection forms a rigid continuum between the main pipes 20, it ensures uniform flow distribution during liquid distribution, reducing instability in liquid supply caused by loose or misaligned main pipe 20 interfaces. This effectively improves the uniformity of gas-liquid distribution and the overall operational reliability of the reaction system under low liquid volume and low gas phase conditions.

[0037] In some embodiments of this application, the distribution disk 40 is connected to the second connector 105, which is a ring structure.

[0038] It should be noted that the distribution plate 40 is connected to the second connecting member 105, which is a circular ring structure. The distribution plate 40 achieves uniform circumferential support through the circular ring structure, thereby maintaining horizontal stability within the chamber 101. The circular ring structure of the second connecting member 105 is fixed to the side wall of the outer shell 10, forming a circumferential force-bearing surface. This can evenly distribute the liquid impact load and gas disturbance force experienced by the distribution plate 40 during operation to the outer shell 10, preventing the distribution plate 40 from warping or shifting due to uneven local force. Through this ring-shaped connection, the distribution plate 40 can stably bear the combined effect of the liquid jet from the branch pipe 30 and the gas introduced by the gas-liquid distributor 402, ensuring that the liquid distribution area is evenly distributed throughout the cross-section of the entire chamber 101, thereby improving the contact efficiency of the gas and liquid phases. The circular ring structure also provides a regular reference surface for subsequent gasket sealing and mounting hole positioning, facilitating assembly and maintenance, and further improving the uniformity of liquid distribution and the reliability of device operation under small liquid volume and low gas phase operating conditions.

[0039] In some embodiments of this application, the second connector 105 is provided with a first gasket 106, which is disposed at the connection between the distribution disk 40 and the second connector 105, and the first gasket 106 is a ring structure.

[0040] It should be noted that the second connector 105 is equipped with a first gasket 106, which is located at the connection between the distribution plate 40 and the second connector 105, and the first gasket 106 has a circular structure. The first gasket 106 is used for shock absorption. When the distribution plate 40 is subjected to the impact of the liquid jet from the branch pipe 30 and the airflow from the gas-liquid distributor 402, the first gasket 106 can absorb and attenuate the instantaneous load, reduce the rigid collision between the distribution plate 40 and the second connector 105, and avoid warping, displacement, or metal fatigue of the distribution plate 40 due to vibration or impact. Through the uniform distribution of the circular structure, the first gasket 106 can provide continuous support and vibration reduction effect throughout the circumferential range, so that the distribution plate 40 remains stable under high-frequency pulsation and pressure fluctuation conditions, ensuring the uniformity of liquid distribution and gas-liquid contact, thereby improving the stability and service life of the device under small liquid volume and low gas phase conditions.

[0041] In some embodiments of this application, the distribution disk 40 is characterized by having a plurality of distribution units 400, all of which are connected to a fifth connector 403, which is located at the center of the distribution disk 40.

[0042] It should be noted that the distribution disk 40 is composed of several fan-shaped distribution units 400. Each distribution unit 400 is fixedly connected to the center of the distribution disk 40 via a fifth connector 403, thus forming a ring-shaped assembly structure with the center as the axis. The fan-shaped distribution units 400 are interconnected to form a complete distribution disk 40, allowing liquid and gas to be introduced and distributed in separate sections within each fan-shaped distribution unit 400. The centralized fixing by the fifth connector 403 ensures that the force on each fan-shaped distribution unit 400 is balanced when arranged in a ring, preventing the overall tilt of the distribution disk 400 due to loosening or misalignment of the distribution units 400. The fan-shaped structure facilitates the formation of relatively independent liquid distribution areas and gas-liquid mixing areas within each unit, thereby achieving zoned liquid distribution and uniform distribution within the distribution disk 40, and improving the contact efficiency of the gas and liquid phases. This structure not only improves the liquid distribution accuracy and stability of the distribution disk 40 under small liquid volume and low gas phase conditions, but also facilitates the assembly and disassembly of individual fan-shaped units, enhancing maintenance flexibility and the overall reliability of the device.

[0043] In some embodiments of this application, a second gasket 404 is provided at the connection between the fifth connector 403 and the distribution disk 40, and the second gasket 404 has a circular ring structure.

[0044] It should be noted that a second gasket 404 is provided at the connection between the fifth connector 403 and the distribution disk 40. The second gasket 404 has a circular ring structure, and its main function is to provide shock absorption and cushioning. By adding a circular ring gasket at the central connection position, the uneven pulsating load from each sector distribution unit 400 can be absorbed and attenuated during liquid injection and gas introduction, preventing the fifth connector 403 and the distribution disk 40 from forming a rigid hard collision in the central area. The uniform circumferential distribution of the second gasket 404 ensures the overall stability of the distribution disk 40, allowing multiple sector distribution units 400 to maintain a tight circumferential fit and prevent misalignment under high-speed conditions. At the same time, the second gasket 404 can also offset the slight thermal expansion and contraction differences caused by temperature changes, reducing the risk of loosening of bolts or fasteners during long-term operation. Under conditions of small liquid volume and low gas phase, this shock-absorbing structure can effectively extend the service life of the distribution disk 40 and the fifth connector 403, ensuring that the distribution disk 40 always maintains a stable liquid distribution state and uniform gas-liquid distribution.

[0045] In some embodiments of this application, the distribution unit 400 is provided with a weir plate 401, a base plate 405, a first mounting hole 406, a second mounting hole 407 and a third mounting hole 408. The weir plate 401 is connected to the base plate 405. The first mounting hole 406 and the second mounting hole 407 are both provided on the base plate 405. The first mounting hole 406 is connected to the second connector 105. The second mounting hole 407 is connected to the gas-liquid distributor 402. The third mounting hole 408 is connected to the third mounting hole 408 provided in the adjacent distribution unit 400.

[0046] It should be noted that the distribution unit 400 is provided with a weir plate 401, a bottom plate 405, a first mounting hole 406, a second mounting hole 407 and a third mounting hole 408. The weir plate 401 is connected to the bottom plate 405, forming the basic load-bearing and flow guiding structure of the distribution unit 400. Each branch pipe 30 corresponds to a fan-shaped area enclosed by a weir plate 401, so that the liquid flow at the outlet of the branch pipe 30 is evenly distributed only within the fan-shaped area, avoiding mutual interference of the liquid flow of different branch pipes 30. The first mounting hole 406 is located on the arc edge of the fan shape, passes through the base plate 405 and is threadedly connected to the second connector 105. It is used to fix the distribution unit 400 on the ring structure and provide circumferential support, ensuring the accurate positioning of each unit on the distribution plate 40. The second mounting hole 407 is set on the base plate 405, corresponding to the channel position of the gas-liquid distributor 402. It is used to dock with the gas-liquid distributor 402, so that the gas can smoothly enter the fan-shaped area and mix with the liquid flow locally, thereby enhancing the mass transfer effect. The third mounting hole 408 is located on the straight edge of the fan shape. Each adjacent distribution unit 400 is provided with this mounting hole. The third mounting holes 408 of adjacent units are threadedly connected by fasteners to realize circumferential splicing and reinforcement between units, ensuring that multiple fan-shaped units are tightly connected end to end and have tight and seamless boundaries. Through this structural design, the liquid outlet of branch pipe 30, the gas-liquid introduction and the distribution unit 400 work together to form a stable zoned liquid distribution mode, achieving uniform liquid distribution and stable operation under small liquid volume and low gas phase conditions, thereby improving the controllability and reliability of the reaction process.

[0047] The working process of this utility model is as follows: the liquid raw material enters the main pipe 20 through the liquid inlet 102 on the side wall of the outer shell 10, and the main pipe 20 sends the liquid into the liquid distributor 201; the liquid distributor 201 divides the incoming liquid into multiple streams, which fall from the distribution plate 40 into the fan-shaped areas enclosed by the free weir plates 401 through the branch pipes 30, forming a uniform thin liquid layer on the bottom plate 405; the gas enters through the gas-liquid distributor 402 through the distribution plate 40, and comes into close contact with and mixes with the liquid in each fan-shaped area; the distribution... The distribution plate 40 is fixed by a circular second connector 105. The first mounting hole 406 on the arc edge is used for fixing and positioning with the second connector 105, and the third mounting hole 408 on the straight edge is used for threaded fastening between adjacent sector units, ensuring the overall stability of the distribution plate 40. The mixed gas and liquid flow downwards into the separation module 107, which is fixed to the side wall of the outer shell 10. After being redistributed and stabilized in the separation module 107, it is discharged from the liquid outlet 103 on the side wall of the outer shell 10 through the liquid outlet pipe 108 connected to it. The whole system realizes zoned liquid distribution, local mixing and smooth discharge, which is suitable for continuous operation under small liquid volume and low gas phase conditions.

[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An internal component of a low-liquid-volume, low-gas-phase hydrogenation reactor, characterized in that, include: The housing includes a chamber and a processing module disposed inside the housing. The processing module includes a main pipe, a liquid distributor, branch pipes, a distribution plate, a gas-liquid distributor, a separation module, and an outlet pipe. One end of the main pipe passes through the outer casing, and the other end of the main pipe is connected to the liquid distributor. One end of the branch pipe is connected to the liquid distributor, and the other end is disposed on the distribution plate. The gas-liquid distributor passes through the distribution plate. The separation module is connected to the inner wall of the outer casing, and one end of the outlet pipe is connected to the separation module.

2. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 1, characterized in that, The outer casing is also provided with a liquid inlet and a liquid outlet, which are provided through the side wall of the outer casing. The liquid inlet is connected to one end of the main pipe, and the liquid outlet is connected to the other end of the liquid outlet pipe.

3. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 2, characterized in that, The cavity is provided with a plurality of first connectors and second connectors, and both the first connectors and the second connectors are connected to the side wall of the outer shell.

4. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 3, characterized in that, The outer wall of the branch pipe is provided with a third connector, which is connected to one end of a fourth connector, and the first connector is connected to the other end of the fourth connector.

5. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 4, characterized in that, The outer wall of the main pipe is provided with a pipe connector, which is used to connect the main pipe.

6. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 5, characterized in that, The distribution plate is connected to the second connector, which is a ring structure.

7. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 6, characterized in that, The second connector is provided with a first gasket, which is located at the connection between the distribution plate and the second connector. The first gasket has a circular ring structure.

8. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 7, characterized in that, The distribution disk is provided with a plurality of distribution units, and each of the plurality of distribution units is connected to a fifth connector, which is located at the center of the distribution disk.

9. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 8, characterized in that, A second gasket is provided at the connection between the fifth connector and the distribution plate, and the second gasket has a circular ring structure.

10. The internal components of the low-volume, low-gas-phase hydrogenation reactor according to claim 9, characterized in that, The distribution unit is provided with a weir plate, a base plate, a first mounting hole, a second mounting hole and a third mounting hole. The weir plate is connected to the base plate. The first mounting hole and the second mounting hole are both provided on the base plate. The first mounting hole is connected to a second connector. The second mounting hole is connected to the gas-liquid distributor. The third mounting hole is connected to the third mounting hole provided in the adjacent distribution unit.

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