Outlet collector for reactor

Abstract

The utility model discloses an outlet collector for a reactor, which comprises a cylinder, a plurality of first round holes are annularly and uniformly formed in the outer wall of the cylinder from top to bottom in sequence, a top ring is fixedly connected to the top end of the cylinder, a round plate is arranged at the bottom end of the cylinder, and a plurality of second round holes are uniformly formed in the lower surface of the round plate. According to the outlet collector for the reactor, through cooperation of a cylinder, a first round hole, a top ring, a round plate, a second round hole, a first bolt, a convex lug, a second bolt and a cleaning auxiliary unit, two scraping plates can revolve around a round rod as the center in the revolution period, and the two scraping plates can rub impurities above the round plate in the revolution period; impurities can move irregularly so that the impurities can make full contact with high-temperature and high-pressure nitrogen, the impurities can be rapidly melted and shrunk to be discharged from a second round hole, and rapid cleaning can be conveniently conducted in a high-pressure and high-temperature nitrogen air supply cleaning mode.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogenation reactors, in particular to an outlet collector for a reactor. Background Art

[0002] ‌A hydrogenation reactor is a device that uses hydrogen to react with unsaturated bonds in raw materials under the action of a catalyst.‌ It plays a vital role in oil refining and chemical production. Hydrogenation reactors are not only used in the oil industry to convert heavy oil products into light oil products, such as gasoline and diesel, but are also widely used in chemical pharmaceuticals as a basic equipment for product development, organic chemicals and pharmaceutical research. The reactor outlet collector is a cap-shaped component with a round hole on the top and a long hole on the side wall, covered with a stainless steel mesh. Its main function is to prevent the porcelain balls at the bottom of the reactor from leaking out of the outlet.

[0003] At present, in the hydrogenation unit, if the crude oil contains solid impurities or particulate matter such as coke powder, these impurities will be deposited on the filter, causing blockage and affecting operating efficiency. In order to maintain the unit without stopping the machine, high-pressure and high-temperature nitrogen is usually injected to clean the blockage (because the solid impurities in the crude oil usually include large molecular paraffin and other substances that melt and can be discharged after heating).

[0004] However, during the cleaning operation, some impurities are affected by the instantaneous force of the airflow. At present, the filter holes of the reactor outlet collector are mostly formed by weaving multiple steel wires. These steel wires are affected by the instantaneous squeezing force of the impurities and may produce certain deformations, which can easily cause impurities to be embedded in the filter holes. At this time, the contact between the airflow and the impurities is poor, and the impurities are heated unevenly, which is not conducive to the rapid melting and shrinking of the impurities and their discharge from the filter holes. It is not convenient to be cleaned by high-pressure and high-temperature nitrogen air supply for rapid cleaning. Utility Model Content

[0005] The utility model aims to provide an outlet collector for a reactor, which can facilitate the full contact of impurities with high-temperature and high-pressure nitrogen and facilitate the rapid cleaning of impurities, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an outlet collector for a reactor comprises a cylinder, the outer wall of the cylinder is uniformly provided with a plurality of first circular holes in an annular shape from top to bottom, a top ring is fixedly connected to the top end of the cylinder, a circular plate is provided at the bottom end of the cylinder, a plurality of second circular holes are uniformly provided on the lower surface of the circular plate, a plurality of first bolts are inserted in an annular shape at the edge of the lower surface of the circular plate, the first bolts penetrate the circular plate and are connected to the cylinder thread, a plurality of lugs are fixedly connected to the upper surface of the top ring in an annular shape, second bolts are inserted into the surface of the lugs, a cleaning auxiliary unit is provided above the circular plate, and the cleaning auxiliary unit comprises: a round rod, which is vertically located at the center of the upper surface of the circular plate, and the round rod is rotatably connected to the circular plate through a sealed bearing; an impeller, which is fixedly connected to the top end of the round rod; two scrapers are provided, which are respectively fixedly connected to the front and rear sides of the outer wall of the round rod.

[0007] Preferably, the top end of the inner wall of the second circular hole is an arc-shaped structure.

[0008] Preferably, a protection unit is provided on one side of the first bolt and the second bolt, and the protection unit includes: a plurality of threaded caps, which are respectively located on one side of the first bolt and the second bolt, and the plurality of threaded caps are respectively threadedly connected to the lug and the circular plate; a collar, which is fixedly sleeved on the outer wall of the threaded cap; a first graphite gasket, which is fixedly connected to the surface of the collar, and the plurality of first graphite gaskets are respectively tightly pressed against the lug and the circular plate.

[0009] Preferably, an arc block is sleeved on the outer wall of the second bolt, and second graphite gaskets are fixedly connected to both sides of the arc block, and the inner walls of the second graphite gasket and the arc block are both gap-matched with the outer wall of the second bolt.

[0010] Preferably, the round rod is a vertical double-section structure, and a connecting unit is provided between the double-section round rods, and the connecting unit includes: a reduction gear box connected between the double-section round rods; a shell, which is mounted on the outside of the reduction gear box; two support rods, which are respectively fixed to the front and rear sides of the reduction gear box, and the other end of the support rod is fixedly connected to the inner wall of the shell; two bent rods are provided, which are respectively fixed to the left and right sides of the shell, and the other end of the bent rod is fixedly connected to the contact surface of the circular plate.

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

[0012] Through the coordination among the cylinder, the first circular hole, the top ring, the circular plate, the second circular hole, the first bolt, the lug, the second bolt and the cleaning auxiliary unit, during the operation of the reactor, because the crude oil contains solid impurities or coke powder and other particulate matter, these impurities block the second circular hole. After the fluid in the reactor is discharged, the maintenance personnel inject high-temperature and high-pressure nitrogen into the reactor to heat the impurities so that they melt and become smaller and are cleaned out from the second circular hole. During this process, when the airflow flows downward through the impeller, the impeller rotates due to the impact force. During this period, the two scrapers will revolve around the round rod as the center. During the revolution, the two scrapers can scrape the impurities above the circular plate, which can make the impurities move irregularly, so that the impurities can fully contact with the high-temperature and high-pressure nitrogen, which is conducive to the rapid melting and shrinking of the impurities and discharge from the second circular hole, so as to facilitate the cleaning method of high-pressure and high-temperature nitrogen air supply, and carry out rapid cleaning;

[0013] Through the cooperation among the cylinder, the first circular hole, the top ring, the circular plate, the second circular hole, the first bolt, the lug, the second bolt, the cleaning auxiliary unit and the connecting unit, the round rod is a vertical double-section structure, wherein the round rod connected to the impeller is fixedly connected to the output end of the reduction gear box, which can reduce the force required for the impeller to rotate, so that the impeller can smoothly rotate when the airflow is flushed, and the two scrapers revolve around the round rod as the center, which is further conducive to the blocked impurities to fully contact with the high-temperature and high-pressure nitrogen;

[0014] Through the cooperation among the cylinder, the first circular hole, the top ring, the circular plate, the second circular hole, the first bolt, the lug, the second bolt and the protective unit, the threaded cap can cover and protect the exposed parts of the first bolt and the second bolt to prevent the exposed parts of the first bolt and the second bolt from being blocked, so as to facilitate the subsequent disassembly and cleaning operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0019] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0020] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the middle scraper;

[0021] Figure 6 for Figure 2 Schematic diagram of the three-dimensional structure of the middle arc block and the second graphite gasket.

[0022] In the figure: 1, cylinder, 2, first circular hole, 3, top ring, 4, circular plate, 5, second circular hole, 6, first bolt, 7, lug, 8, second bolt, 9, round rod, 10, impeller, 11, scraper, 12, reduction gear box, 13, housing, 14, support rod, 15, bent rod, 16, threaded cap, 17, collar, 18, first graphite gasket, 19, arc block, 20, second graphite gasket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] See also Figure 1-6 The technical solution provided by the utility model is as follows: an outlet collector for a reactor comprises a cylinder 1, the outer wall of the cylinder 1 is uniformly provided with a plurality of first circular holes 2 in an annular shape from top to bottom, a top ring 3 is fixedly connected to the top end of the cylinder 1, a circular plate 4 is provided at the bottom end of the cylinder 1, a plurality of second circular holes 5 are uniformly provided on the lower surface of the circular plate 4, a plurality of first bolts 6 are inserted in an annular shape at the edge of the lower surface of the circular plate 4, the first bolts 6 penetrate the circular plate 4 and are threadedly connected to the cylinder 1, a plurality of lugs 7 are fixedly connected to the upper surface of the top ring 3 in an annular shape, a second bolt 8 is inserted into the surface of the lug 7, a cleaning auxiliary unit is provided above the circular plate 4, and the cleaning auxiliary unit comprises: a round rod 9, which is vertically located at the center position of the upper surface of the circular plate 4, and the round rod 9 is rotatably connected to the circular plate 4 through a sealed bearing; an impeller 10, which is fixedly connected to the top end of the round rod 9; two scrapers 11 are provided, which are respectively fixedly connected to the front and rear sides of the outer wall of the round rod 9.

[0025] In the specific implementation process, it is worth pointing out that the cylinder 1, the top ring 3, the circular plate 4, the lug 7 and the impeller 10 are all made of stainless steel, which can meet the use under high temperature conditions in the reactor. The inner ring of the sealed bearing is fixedly connected to the round rod 9, and the outer ring of the sealed bearing is fixedly connected to the circular plate 4. The sealed bearing is made of heat-resistant bearing steel (high-temperature bearing steel). This steel has sufficiently high high-temperature hardness, wear resistance, contact fatigue strength, oxidation resistance and high-temperature dimensional stability. Common high-temperature bearing steels include high-speed steel, High-chromium martensitic stainless steel and high-temperature carburizing steel, etc. High-temperature sealed bearings are usually equipped with sealing rings or seals on the inside and outside to prevent lubricant leakage and external impurities from invading the inside of the bearing, ensuring that the bearing operates stably for a long time under high-temperature environment. The cross-section of the scraper 11 is a trapezoidal structure, so that it is easy to scrape and apply force to the impurities above the circular plate 4. The lower surface of the scraper 11 is in contact with the upper surface of the circular plate 4. The distance between the two scrapers 11 is greater than the distance between the two bent rods 15, that is, the bent rod 15 will not affect the normal revolution of the two scrapers 11.

[0026] Furthermore, the top of the inner wall of the second circular hole 5 is an arc-shaped structure.

[0027] In the specific implementation process, it is worth pointing out that the second circular hole 5 with an arc-shaped structure at the top of the inner wall can facilitate the removal of impurities embedded in its inner part.

[0028] Furthermore, a protection unit is provided on one side of the first bolt 6 and the second bolt 8, and the protection unit includes: a threaded cap 16, which is provided in plurality and is respectively located on one side of the first bolt 6 and the second bolt 8, and the plurality of threaded caps 16 are respectively threadedly connected to the lug 7 and the circular plate 4; a collar 17, which is fixedly sleeved on the outer wall of the threaded cap 16; a first graphite gasket 18, which is fixedly connected to one side surface of the collar 17, and the plurality of first graphite gaskets 18 are respectively pressed against the lug 7 and the circular plate 4.

[0029] In the specific implementation process, it is worth pointing out that the threaded cap 16 and the collar 17 are both made of stainless steel, which can meet the requirements of being used under high temperature conditions in the reactor. The first graphite gasket 18 and the second graphite gasket 20 are both cut or stamped from reinforced graphite plates, and have many sealing properties, such as: thermal stability, self-lubrication, corrosion resistance, no aging and no brittleness, etc. They can be used stably for a long time under harsh working conditions and rarely require maintenance.

[0030] Furthermore, an arc block 19 is sleeved on the outer wall of the second bolt 8 , and second graphite gaskets 20 are fixedly connected to both sides of the arc block 19 . The inner walls of the second graphite gasket 20 and the arc block 19 are gap-matched with the outer wall of the second bolt 8 .

[0031] In the specific implementation process, it is worth pointing out that the thickness of the arc block 19 and the second graphite gaskets 20 on both sides is close to or equal to the distance between the outer wall of the top ring 3 and the inner wall of the reactor installation. During the installation, a rubber hammer can be used to knock on the upper surface of the arc block 19 to facilitate the smooth insertion of the second bolt 8. The arc block 19 and the second graphite gaskets 20 on both sides can provide a certain limiting effect for the circular plate 4, so that the circular plate 4 can be installed in the center position of the reactor.

[0032] Furthermore, the round rod 9 is a vertical double-section structure, and a connecting unit is provided between the double-section round rods 9, and the connecting unit includes: a reduction gear box 12, which is connected between the double-section round rods 9; a shell 13, which is mounted on the outside of the reduction gear box 12; two support rods 14 are provided, which are respectively fixedly connected to the front and rear sides of the reduction gear box 12, and the other end of the support rod 14 is fixedly connected to the inner wall of the shell 13; two bent rods 15 are provided, which are respectively fixedly connected to the left and right sides of the shell 13, and the other end of the bent rod 15 is fixedly connected to the contact surface of the circular plate 4.

[0033] In the specific implementation process, it is worth pointing out that the reduction gearbox 12 is a device for reducing the speed of mechanical movement, which is mainly composed of gears, bearings and a lubrication system. The double-section round rod 9 is fixedly connected to the output end and the input end of the reduction gearbox 12 respectively, wherein the round rod 9 with the impeller 10 is fixedly connected to the output end of the reduction gearbox 12, because the rotation speed of the output end of the reduction gearbox 12 can save effort, and the force required for the impeller 10 to rotate can be reduced. The round rod 9 is rotatably connected to the housing 13 through a sealed bearing, the inner ring of the sealed bearing is fixedly connected to the round rod 9, and the outer ring of the sealed bearing is fixedly connected to the housing 13.

[0034] Working principle:

[0035] Composition and operation of the outlet collector:

[0036] First, the top ring 3 with multiple lugs 7 evenly distributed on the upper surface is concentrically welded to the top of the cylinder 1, and then the circular plate 4 with multiple second circular holes 5 evenly distributed on the surface is covered on the bottom end of the cylinder 1, and the first bolt 6 is used to penetrate the circular plate 4 and threadedly connected to the cylinder 1, so that the outlet collector structure can be formed, and then the second bolt 8 is passed through the lug 7 and threadedly connected to the appropriate position inside the reactor, and the overall collector structure can be installed inside the reactor. During the operation of the reactor, the first circular hole 2 and the second circular hole 5 can prevent the porcelain balls at the bottom of the reactor from discharging downward, and the first circular hole 2 and the second circular hole 5 can drain the fluid.

[0037] The outlet collector is cleaned:

[0038] During the operation of the installed reactor, because the crude oil contains solid impurities or coke powder and other particles, these impurities block the second circular hole 5. After the maintenance personnel have completed the discharge of the fluid in the reactor, they inject high-temperature and high-pressure nitrogen into the reactor to heat the impurities so that they melt and shrink and are cleaned out from the second circular hole 5. During this process, when the airflow flows downward through the impeller 10, the impeller 10 rotates due to the impact force. During this period, the two scrapers 11 will revolve around the round rod 9 as the center. During the revolution, the two scrapers 11 can scrape the impurities above the circular plate 4, which can make the impurities move irregularly, so that the impurities can fully contact with the high-temperature and high-pressure nitrogen, which is conducive to the rapid melting and shrinking of the impurities and discharge from the second circular hole 5, so that they can be quickly cleaned by the cleaning method of high-pressure and high-temperature nitrogen air supply;

[0039] Disassembly and cleaning of the outlet collector:

[0040] After the first bolt 6 and the second bolt 8 are tightened, the user puts the threaded cap 16 on the exposed parts of the first bolt 6 and the second bolt 8. The threaded cap 16 can cover and protect the exposed parts of the first bolt 6 and the second bolt 8 to prevent blockage and the like in the exposed parts, so as to facilitate the subsequent disassembly and cleaning operations.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outlet collector for a reactor, comprising a cylinder (1), characterized in that: The outer wall of the cylinder (1) is provided with a plurality of first circular holes (2) in an annular shape from top to bottom, a top ring (3) is fixedly connected to the top end of the cylinder (1), a circular plate (4) is provided at the bottom end of the cylinder (1), a plurality of second circular holes (5) are evenly opened on the lower surface of the circular plate (4), a plurality of first bolts (6) are inserted in an annular shape at the edge of the lower surface of the circular plate (4), the first bolts (6) penetrate the circular plate (4) and are threadedly connected to the cylinder (1), a plurality of lugs (7) are fixedly connected to the upper surface of the top ring (3) in an annular shape, a second bolt (8) is inserted into the surface of the lug (7), and a cleaning auxiliary unit is provided above the circular plate (4), the cleaning auxiliary unit comprising: A round rod (9) is vertically located at the center of the upper surface of the circular plate (4), and the round rod (9) is rotatably connected to the circular plate (4) via a sealed bearing; An impeller (10) fixedly connected to the top end of the round rod (9); Two scrapers (11) are provided and are respectively fixed to the front and rear sides of the outer wall of the round rod (9).

2. The reactor outlet collector according to claim 1, characterized in that: The top end of the inner wall of the second circular hole (5) is an arc-shaped structure.

3. The reactor outlet collector according to claim 1, characterized in that: A protection unit is provided on one side of each of the first bolt (6) and the second bolt (8), and the protection unit comprises: A plurality of threaded caps (16) are provided and are respectively located on one side of the first bolt (6) and the second bolt (8), and the plurality of threaded caps (16) are respectively threadedly connected to the lug (7) and the circular plate (4); A collar (17) fixedly sleeved on the outer wall of the threaded cap (16); A first graphite gasket (18) is fixedly connected to the surface of the collar (17), and a plurality of first graphite gaskets (18) are respectively tightly abutted against the lug (7) and the circular plate (4).

4. The reactor outlet collector according to claim 1, characterized in that: The outer wall of the second bolt (8) is sleeved with an arc block (19), and second graphite gaskets (20) are fixedly connected to both sides of the arc block (19), and the inner walls of the second graphite gasket (20) and the arc block (19) are both gap-matched with the outer wall of the second bolt (8).

5. The reactor outlet collector according to claim 1, characterized in that: The round rod (9) is a vertical double-section structure, and a connecting unit is provided between the double-section round rod (9), and the connecting unit comprises: A reduction gear box (12) connected between the two-section round rods (9); A housing (13) mounted on the outer side of the reduction gear box (12); Two support rods (14) are provided and are respectively fixedly connected to the front and rear sides of the reduction gear box (12), and the other end of the support rod (14) is fixedly connected to the inner wall of the housing (13); Two bent rods (15) are provided and are respectively fixedly connected to the left and right sides of the housing (13), and the other end of the bent rod (15) is fixedly connected to the contact surface of the circular plate (4).

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