Fixed bed converter for acetylene hydrochlorination reaction

Abstract

The invention discloses a fixed bed converter for acetylene hydrochlorination reaction, and relates to the technical field of fixed bed converters, the fixed bed converter comprises two round pipes, the two round pipes are arranged up and down, the corresponding sides of the two round pipes are arranged in a mutually attached manner, the outer side edges of the round pipes are fixedly connected with flanges, and the flanges are fixedly connected with the fixed bed converter. A plurality of first threaded holes are formed in inner cavities of the flanges, the two round pipes are connected and installed through the flanges and bolts, the device is divided into two parts, the interiors of the round pipes can be conveniently cleaned subsequently, two layers of catalysts can be arranged in the device, acetylene hydrochlorination reaction can be sufficient, and the reaction efficiency is improved. And cooling liquid in the annular frame is absorbed through a pump machine, the cooling liquid flows into the hose so as to cool the round pipe, meanwhile, the device can be vertically placed and can also be transversely placed, and the application range of the device is widened.

Description

Technical Field

[0001] The invention relates to the technical field of fixed bed converters, in particular to a fixed bed converter for acetylene hydrochlorination reaction. Background Art

[0002] A fixed bed converter refers to a reactor in which a granular solid catalyst or solid reactant is loaded to form a stacked bed layer of a certain height. While the gas or liquid material flows through the static fixed bed layer through the gaps between the particles, a heterogeneous reaction process is achieved. A fixed bed converter is required in the acetylene hydrochlorination reaction.

[0003] However, there are some problems in the use of the existing fixed bed converter for acetylene hydrochlorination reaction. The existing fixed bed converter is usually integrated, which makes it inconvenient to place and remove the catalyst. It is not convenient to clean the inside of the device after the device finishes working, which reduces the working efficiency of the device. At the same time, most of the existing fixed bed converters work in a fixed direction, which is not convenient to change their own working state according to the needs of the working environment, and it is not convenient to cool the heat emitted by the fixed bed converter when it is working. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a fixed bed converter for acetylene hydrochlorination reaction, which can facilitate the disassembly and installation of the fixed bed converter, facilitate the cleaning of the interior thereof, adjust the working state of the device according to environmental requirements, and facilitate the heat dissipation of the fixed bed converter.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a fixed bed converter for acetylene hydrochlorination reaction, comprising two circular tubes, the two circular tubes are arranged up and down, the corresponding sides of the two circular tubes are arranged to fit each other, the outer edges of the circular tubes are fixedly connected with flanges, the inner cavities of the flanges are provided with a plurality of first threaded holes, the inner cavities of two adjacent first threaded holes are threadedly connected with bolts, the inner cavities of the circular tubes are provided with hollow columns, the top and bottom ends of the hollow columns are provided with connecting holes, the inner cavities of the hollow columns are provided with grid disks, the diameter of the grid disks is larger than the diameter of the connecting holes, the top and bottom ends of the hollow columns are provided with limiting rings, and the outer edges of the limiting rings are fixedly connected to the side walls of the adjacent circular tube cavities.

[0006] Preferably, a fixing ring is fixedly connected to the side of the outer edge of the circular tube away from the flange, and an annular frame is fixedly connected to the side of the fixing ring close to the flange. The annular frame is sleeved on the outer edge of the adjacent circular tube. An annular groove is provided near the center of the outer edge of the circular tube, and a hose is wound in the annular groove. A vertical rod is fixedly connected to the side of the annular frame close to the flange, and a U-shaped plate is fixedly connected to the end of the vertical rod away from the annular frame. A pump is provided in the inner cavity of the U-shaped plate, and second threaded holes are provided on the left and right sides of the U-shaped plate. The inner cavities of two adjacent second threaded holes are commonly threadedly connected with a connecting threaded rod.

[0007] Preferably, a limiting tube is fixedly connected to the front side of the pump, and one end of the limiting tube away from the pump passes through one side of an adjacent annular frame and is fixedly connected thereto, and one end of the hose away from the pump passes through one side of an adjacent annular frame and is fixedly connected thereto.

[0008] Preferably, the outer edge of the annular frame is fixedly connected to a plurality of L-shaped plates, the side of the L-shaped plate away from the circular tube is fixedly connected to a fixing plate, the inner cavity of the fixing plate is provided with a third threaded hole, the inner cavities of two adjacent third threaded holes are commonly threadedly connected to a limiting threaded rod, and the side of the L-shaped plate away from the circular tube is fixedly connected to a support column.

[0009] Preferably, four support rods are fixedly connected to the outer edges of the fixing ring, and one end of the support rods away from the fixing ring is fixedly connected to a fixing plate.

[0010] Preferably, four elastic ropes are fixedly connected to one side of the grid plate away from the flange, and one end of the elastic rope away from the grid plate passes through adjacent connecting holes and is fixedly connected to the adjacent side wall of the inner cavity of the circular tube.

[0011] Preferably, a connecting pipe is fixedly connected to the rear side of the pump machine, and the connecting pipe is sleeved on the outer edge of the adjacent hose.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention can realize the connection and installation of two circular tubes through flanges and bolts through the mutual cooperation between the circular tube, the annular frame, the grid plate, the support rod and other structures, and divide the device into two parts, which is convenient for the subsequent cleaning of the inside of the circular tube. Two layers of catalyst can also be arranged inside the device to enable the acetylene hydrochlorination reaction to fully react. The coolant inside the annular frame is absorbed by the pump, and the coolant will flow into the inside of the hose, thereby cooling the circular tube. At the same time, the device can be placed not only vertically but also horizontally, thereby improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of the present invention;

[0015] Figure 2 This is a horizontal placement display diagram of the fixed bed converter of the present invention;

[0016] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the circular tube structure of the component of the present invention;

[0018] Figure 5 It is a schematic diagram of the ring frame structure of the component of the present invention;

[0019] Figure 6 This is a schematic diagram of the support rod structure of the component of the present invention;

[0020] Figure 7 This is a cross-sectional exploded view of a circular tube component of the present invention;

[0021] Figure 8 This is a schematic diagram of the hose structure of the component of the present invention;

[0022] Fig. 9 This is a schematic diagram of the L-shaped plate structure of the component of the present invention;

[0023] Fig.10 It is a schematic diagram of the pump structure of the component of the present invention.

[0024] Numbers in the figure: 1. round tube; 2. fixing ring; 3. L-shaped plate; 4. support rod; 5. fixing plate; 6. flange; 7. bolt; 8. ring frame; 9. hollow column; 10. limiting ring; 11. grid plate; 12. limiting tube; 13. hose; 14. vertical rod; 15. pump; 16. U-shaped plate; 17. connecting threaded rod; 18. connecting tube; 19. elastic rope; 20. support column; 21. fixing plate; 22. limiting threaded rod. DETAILED DESCRIPTION

[0025] See also Figure 1-10 The present invention provides a technical solution: a fixed bed converter for acetylene hydrochlorination reaction, comprising two round tubes 1, the two round tubes 1 are arranged up and down, the corresponding sides of the two round tubes 1 are arranged to fit each other, the outer edges of the round tubes 1 are fixedly connected with flanges 6, the inner cavities of the flanges 6 are provided with a plurality of first threaded holes, the inner cavities of two adjacent first threaded holes are threadedly connected with bolts 7, the inner cavities of the round tubes 1 are provided with hollow columns 9, the top and bottom ends of the hollow columns 9 are provided with connecting holes, the inner cavities of the hollow columns 9 are provided with grid plates 11, the diameter of the grid plates 11 is larger than the diameter of the connecting holes, the top and bottom ends of the hollow columns 9 are provided with limiting rings 10, the outer edges of the limiting rings 10 are fixedly connected to the side walls of the inner cavities of the adjacent round tubes 1, the side of the grid plates 11 away from the flange 6 is fixedly connected with four elastic ropes 19, the end of the elastic rope 19 away from the grid plates 11 passes through the adjacent connecting holes and is fixedly connected to the side walls of the inner cavities of the adjacent round tubes 1;

[0026] A fixing ring 2 is fixedly connected to the side of the outer edge of the circular tube 1 away from the flange 6, and an annular frame 8 is fixedly connected to the side of the fixing ring 2 close to the flange 6. The annular frame 8 is sleeved on the outer edge of the adjacent circular tube 1. An annular groove is provided near the center of the outer edge of the circular tube 1, and a hose 13 is wound in the annular groove. A vertical rod 14 is fixedly connected to the side of the annular frame 8 close to the flange 6. A U-shaped plate 16 is fixedly connected to the end of the vertical rod 14 away from the annular frame 8. A pump 15 is provided in the inner cavity of the U-shaped plate 16. Second threaded holes are provided on the left and right sides of the U-shaped plate 16. The inner cavities of the two adjacent second threaded holes are commonly threadedly connected with a connecting threaded rod 17. The front side of the pump 15 is fixedly connected to a limiting tube 12, and the end of the limiting tube 12 away from the pump 15 passes through the adjacent One side of the annular frame 8 is fixedly connected thereto, one end of the hose 13 away from the pump 15 passes through one side of the adjacent annular frame 8 and is fixedly connected thereto, a plurality of L-shaped plates 3 are fixedly connected to the outer edge of the annular frame 8, a fixed plate 21 is fixedly connected to the side of the L-shaped plate 3 away from the circular tube 1, a third threaded hole is provided in the inner cavity of the fixed plate 21, and a limited threaded rod 22 is threadedly connected to the inner cavity of two adjacent third threaded holes, a support column 20 is fixedly connected to the side of the L-shaped plate 3 away from the circular tube 1, four support rods 4 are fixedly connected to the outer edge of the fixing ring 2, and a fixing plate 5 is fixedly connected to the end of the support rod 4 away from the fixing ring 2, a connecting pipe 18 is fixedly connected to the rear side of the pump 15, and the connecting pipe 18 is sleeved on the outer edge of the adjacent hose 13;

[0027] The two round tubes 1 are connected and installed by flanges 6 and bolts 7, and the device is divided into two parts, which is convenient for the subsequent cleaning of the inside of the round tube 1. Two layers of catalyst can also be set inside the device to enable the acetylene hydrochlorination reaction to fully react. The coolant inside the annular frame 8 is absorbed by the pump 15, and the coolant will flow into the hose 13, thereby cooling the round tube 1. At the same time, the device can be placed not only vertically but also horizontally, which improves the application range of the device.

[0028] Working principle: before the device starts working, the operator places the catalyst on the top of the grid disk 11 in the adjacent hollow column 9, and uses external equipment to vertically place the two circular tubes 1 up and down, and takes out the bolts 7, and passes the bolts 7 through the two flanges 6 to connect and install the two circular tubes 1. After the two circular tubes 1 are fitted together, the two adjacent L-shaped plates 3 will also be close to each other. The operator limits the two adjacent L-shaped plates 3 through the limiting threaded rod 22 and the fixing plate 21, so as to further strengthen the connection effect of the two circular tubes 1. After the installation of the circular tubes 1 is completed, the operator adjusts the working state of the device according to the working environment or his own usage habits. The device is divided into a vertical working state and a horizontal working state. The default working state is a vertical working state. When the device starts working, acetylene and hydrogen chloride are transported to the inside of the two circular tubes 1 through the pipe opening at the top of the upper circular tube 1. Acetylene and hydrogen chloride will first contact the catalyst inside the upper hollow column 9, and The reaction is carried out, and then the acetylene and hydrogen chloride will contact the catalyst inside the hollow column 9 below and react. Under the action of the catalyst, the two gas molecules collide on the catalyst surface and react chemically to generate vinyl chloride, which will be discharged from the nozzle at the bottom of the circular tube 1 below. The reactor is placed at the nozzle at the bottom of the circular tube 1 below. The vinyl chloride gas flows out of the reactor together with the unreacted acetylene and hydrochloric acid. Heat will be generated during the catalytic reaction inside the circular tube 1. At this time, it is necessary to dissipate heat. The pump 15 is started. The pump 15 absorbs the coolant inside the annular frame 8 through the limiting tube 12, and transports the coolant to the inside of the hose 13 through the connecting tube 18. The hose 13 cools the circular tube 1, and the coolant inside the hose 13 returns to the inside of the annular frame 8. The coolant that absorbs heat is cooled by the heat exchanger. When the device is placed horizontally, the support column 20 will support the device.

Claims

1. A fixed bed converter for acetylene hydrochlorination, comprising two circular tubes (1), characterized in that: The two circular tubes (1) are arranged up and down, and the corresponding sides of the two circular tubes (1) are arranged to fit each other. The outer edges of the circular tubes (1) are fixedly connected with flanges (6), and the inner cavities of the flanges (6) are provided with a plurality of first threaded holes. The inner cavities of two adjacent first threaded holes are threadedly connected with bolts (7). The inner cavities of the circular tubes (1) are provided with hollow columns (9), and the top and bottom ends of the hollow columns (9) are provided with connecting holes. The inner cavities of the hollow columns (9) are provided with grid plates (11), and the diameter of the grid plates (11) is larger than the diameter of the connecting holes. The top and bottom ends of the hollow columns (9) are provided with limiting rings (10), and the outer edges of the limiting rings (10) are fixedly connected to the side walls of the inner cavities of the adjacent circular tubes (1).

2. The fixed bed converter for acetylene hydrochlorination according to claim 1, characterized in that: The side of the outer edge of the circular tube (1) away from the flange (6) is fixedly connected to a fixing ring (2), and the side of the fixing ring (2) close to the flange (6) is fixedly connected to an annular frame (8). The annular frame (8) is sleeved on the outer edge of the adjacent circular tube (1). The outer edge of the circular tube (1) is provided with an annular groove near the center, and a hose (13) is wound in the annular groove. The side of the annular frame (8) close to the flange (6) is fixedly connected to a vertical rod (14), and the end of the vertical rod (14) away from the annular frame (8) is fixedly connected to a U-shaped plate (16). The inner cavity of the U-shaped plate (16) is provided with a pump (15). The left and right sides of the U-shaped plate (16) are provided with second threaded holes, and the inner cavities of two adjacent second threaded holes are commonly threadedly connected to a connecting threaded rod (17).

3. The fixed bed converter for acetylene hydrochlorination according to claim 2, characterized in that: The front side of the pump (15) is fixedly connected to a limiting tube (12); one end of the limiting tube (12) away from the pump (15) passes through one side of an adjacent annular frame (8) and is fixedly connected thereto; and one end of the hose (13) away from the pump (15) passes through one side of an adjacent annular frame (8) and is fixedly connected thereto.

4. The fixed bed converter for acetylene hydrochlorination according to claim 2, characterized in that: The outer edges of the annular frames (8) are fixedly connected to a plurality of L-shaped plates (3); the sides of the L-shaped plates (3) away from the circular tube (1) are fixedly connected to fixed plates (21); the inner cavities of the fixed plates (21) are provided with third threaded holes; the inner cavities of two adjacent third threaded holes are threadedly connected to limiting threaded rods (22); and the sides of the L-shaped plates (3) away from the circular tube (1) are fixedly connected to support columns (20).

5. The fixed bed converter for acetylene hydrochlorination according to claim 2, characterized in that: Four support rods (4) are fixedly connected to the outer edges of the fixing ring (2), and one end of the support rods (4) away from the fixing ring (2) is fixedly connected to a fixing plate (5).

6. The fixed bed converter for acetylene hydrochlorination according to claim 1, characterized in that: Four elastic ropes (19) are fixedly connected to the side of the grid plate (11) away from the flange (6); one end of the elastic rope (19) away from the grid plate (11) passes through adjacent connection holes and is fixedly connected to the inner cavity side wall of the adjacent circular tube (1).

7. The fixed bed converter for acetylene hydrochlorination according to claim 2, characterized in that: A connecting pipe (18) is fixedly connected to the rear side of the pump (15), and the connecting pipe (18) is sleeved on the outer edge of the adjacent hose (13).

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