Novel multi-section vinyl chloride synthesis liquid phase conversion device

Abstract

The utility model relates to the technical field of mercury catalyst preparation, and discloses a novel multi-section vinyl chloride synthesis liquid phase conversion device which comprises a bottom plate, a control box is arranged on one side of the top end of the bottom plate, and a buffer tank, four reactors and a storage tank are sequentially connected to one side of the control box through connecting pipes. The outer ends of the two connecting pipes between the control box and the buffer tank are respectively and sequentially provided with a control valve and a flow meter, and reaction gases acetylene and hydrogen chloride are respectively and accurately metered by the flow meters after being adjusted by the control valves, enter the buffer tank and then enter the catalytic reactor for catalytic reaction; the four reactors are sequentially subjected to multiple reactions, unreacted gas enters the subsequent catalytic reaction part to continuously participate in the reaction, the conversion efficiency is improved, and the magnetic rings are arranged in the reactors, so that the gas entering the reactors can be uniformly distributed.

Description

Technical Field

[0001] The utility model relates to the technical field of mercury catalyst preparation, in particular to a novel multi-stage vinyl chloride synthesis liquid phase conversion device. Background Art

[0002] Vinyl chloride is an important chemical raw material, and its synthesis can be achieved through a liquid phase conversion device. Liquid phase conversion refers to the process of generating vinyl chloride by reacting ethylene with chlorine in the presence of a liquid catalyst.

[0003] Most traditional liquid-phase conversion devices for vinyl chloride synthesis use monomer pipelines for reaction conversion, which results in insufficient reaction of the acetylene and hydrogen chloride gas mixture and causes a low conversion rate. Insufficient reaction will lead to low yield, that is, less vinyl chloride is generated, thus affecting the efficiency and economy of the entire production process.

[0004] Therefore, those skilled in the art have provided a novel multi-stage vinyl chloride synthesis liquid phase conversion device to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings existing in the prior art, and proposes a novel multi-stage vinyl chloride synthesis liquid phase conversion device. The reaction gases acetylene and hydrogen chloride are adjusted by a control valve and accurately measured by a flow meter before entering a buffer tank and then entering a catalytic reactor for catalytic reaction. Multiple reactions are carried out in four reactors in sequence so that the unreacted gas continues to participate in the reaction in the subsequent catalytic reaction part, thereby improving the conversion efficiency. In addition, a magnetic ring is installed in the reactor so that the gas entering the reactor can be evenly distributed.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel multi-stage vinyl chloride synthesis liquid phase conversion device comprises a bottom plate, a control box is arranged on one side of the top of the bottom plate, a buffer tank, four reactors, and a storage tank are sequentially connected to one side of the control box through connecting pipes, control valves and flow meters are sequentially arranged at the outer ends of two connecting pipes between the control box and the buffer tank, magnetic rings are arranged inside the four reactors, catalysts are arranged inside the four reactors, and the liquid level of the catalyst is greater than the magnetic ring;

[0008] Through the above technical scheme, the reaction gases acetylene and hydrogen chloride are adjusted by the control valve and accurately measured by the flow meter before entering the buffer tank and then entering the catalytic reactor for catalytic reaction. They are sequentially passed through four reactors for multiple reactions so that the unreacted gas continues to participate in the subsequent catalytic reaction part, thereby improving the conversion efficiency. In addition, a magnetic ring is installed in the reactor so that the gas entering the reactor can be evenly distributed.

[0009] Furthermore, a first flange is integrally provided at one end of the connecting pipe on one side of the fourth reactor, a second flange is integrally provided at the air inlet end of the storage tank, and a plurality of fixing bolts are connected between the first flange and the second flange;

[0010] Through the above technical solution, a first flange is integrally provided at one end of the connecting pipe on one side of the fourth reactor, a second flange is integrally provided at the air inlet end of the storage tank, and a plurality of fixing bolts are connected between the first flange and the second flange to facilitate replacement of the storage tank.

[0011] Furthermore, air intake pipes are provided at both ends of one side of the control box;

[0012] According to the above technical solution, air intake pipes are arranged at both ends of one side of the control box, thereby facilitating connection with the air intake pipeline.

[0013] Furthermore, the upper front ends of the four reactors are all provided with name labels;

[0014] According to the technical solution, the four reactors can be easily distinguished by attaching name labels to the upper front ends of the four reactors.

[0015] Furthermore, a placement seat is fixedly provided on one side of the top end of the bottom plate;

[0016] Through the above technical solution, a placement seat is fixedly provided on one side of the top end of the bottom plate so as to facilitate the placement of the storage tank.

[0017] Furthermore, support seats are provided at the four corners of the bottom end of the bottom plate;

[0018] Through the above technical solution, by arranging support seats at the four corners of the bottom end of the bottom plate, it is convenient to support the entire device.

[0019] Furthermore, a sealing valve is provided at one end of the storage tank;

[0020] According to the technical solution, a sealing valve is provided at one end of the storage tank, thereby making it easy to seal the storage tank and avoid gas leakage when the storage tank is removed.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes a novel multi-stage vinyl chloride synthesis liquid phase conversion device. After the reaction gases acetylene and hydrogen chloride are adjusted by a control valve and accurately measured by a flow meter, they enter a buffer tank and then enter a catalytic reactor for catalytic reaction. They sequentially pass through four reactors for multiple reactions so that the unreacted gas continues to participate in the reaction in the subsequent catalytic reaction part, thereby improving the conversion efficiency. In addition, a magnetic ring is installed in the reactor so that the gas entering the reactor can be evenly distributed.

[0023] 2. The novel multi-stage vinyl chloride synthesis liquid phase conversion device proposed in the utility model has a first flange integrally arranged at one end of the connecting pipe on one side of the fourth reactor, a second flange integrally arranged at the air inlet end of the storage tank, and a plurality of fixing bolts connected between the first flange and the second flange to facilitate replacement of the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front axonometric view of the novel multi-stage vinyl chloride synthesis liquid phase conversion device proposed in the utility model;

[0025] Figure 2 This is a rear axonometric view of the novel multi-stage vinyl chloride synthesis liquid phase conversion device proposed in the utility model;

[0026] Figure 3 This is a cross-sectional view of a novel multi-stage vinyl chloride synthesis liquid phase conversion device proposed by the utility model;

[0027] Figure 4 This is a top view of the novel multi-stage vinyl chloride synthesis liquid phase conversion device proposed by the utility model;

[0028] Figure 5 Based Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Base plate; 2. Support seat; 3. Control box; 4. Inlet pipe; 5. Control valve; 6. Flow meter; 7. Buffer tank; 8. Connecting pipe; 9. Reactor; 10. First flange; 11. Fixing bolts; 12. Second flange; 13. Storage tank; 14. Placement seat; 15. Magnetic ring; 16. Catalyst; 17. Name label; 18. Sealing valve. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1-5 The utility model provides an embodiment: a novel multi-stage vinyl chloride synthesis liquid phase conversion device, comprising a bottom plate 1, a control box 3 is arranged on one side of the top of the bottom plate 1, a buffer tank 7, four reactors 9, and a storage tank 13 are sequentially connected to one side of the control box 3 through a connecting pipe 8, and the outer ends of the two connecting pipes 8 between the control box 3 and the buffer tank 7 are sequentially provided with a control valve 5 and a flow meter 6, and the inside of the four reactors 9 is provided with a magnetic ring 15, and the inside of the four reactors 9 is provided with a catalyst 16, and the liquid level of the catalyst 16 is greater than the magnetic ring 15. After the reaction gas acetylene and hydrogen chloride are adjusted by the control valve 5, they are accurately measured by the flow meter 6 and then enter the buffer tank 7 and then enter the catalytic reactor 9 for catalytic reaction, and multiple reactions are carried out in sequence through the four reactors 9 so that the unreacted gas continues to participate in the reaction in the subsequent catalytic reaction part, thereby improving the conversion efficiency, and the magnetic ring 15 is installed in the reactor 9 so that the gas entering the reactor 9 can be evenly distributed.

[0033] A first flange 10 is integrally provided at one end of the connecting pipe 8 on one side of the fourth reactor 9, a second flange 12 is integrally provided at the air inlet end of the storage tank 13, and a plurality of fixing bolts 11 are connected between the first flange 10 and the second flange 12. By integrally providing a first flange 10 at one end of the connecting pipe 8 on one side of the fourth reactor 9, a second flange 12 is integrally provided at the air inlet end of the storage tank 13, and a plurality of fixing bolts 11 are connected between the first flange 10 and the second flange 12, it is convenient to replace the storage tank 13. Air inlet pipes 4 are provided at both ends of one side of the control box 3. By providing air inlet pipes 4 at both ends of one side of the control box 3, it is convenient to connect to the air inlet pipe 4. The four reactors 9 are connected by a road, name labels 17 are affixed to the upper front ends of the four reactors 9, and the name labels 17 are affixed to the upper front ends of the four reactors 9 to facilitate the distinction between the four reactors 9, a placement seat 14 is fixedly provided on one side of the top end of the bottom plate 1, and the storage tank 13 is conveniently placed by fixing the placement seat 14 on one side of the top end of the bottom plate 1, and support seats 2 are provided at the four corners of the bottom end of the bottom plate 1, and the support seats 2 are provided at the four corners of the bottom end of the bottom plate 1 to facilitate the support of the entire device, and a sealing valve 18 is provided at one end of the storage tank 13, and a sealing valve is provided at one end of the storage tank 13 to facilitate the sealing of the storage tank 13 to avoid gas leakage when the storage tank 13 is removed.

[0034] Working principle: The reaction gases acetylene and hydrogen chloride are regulated by the control valve 5 and accurately measured by the flow meter 6 before entering the buffer tank 7 and then entering the catalytic reactor 9 for catalytic reaction. Multiple reactions are carried out in four reactors 9 in sequence so that the unreacted gas continues to participate in the reaction in the subsequent catalytic reaction part, thereby improving the conversion efficiency. A magnetic ring 15 is installed in the reactor 9 so that the gas entering the reactor 9 can be evenly distributed. A first flange 10 is integrally provided at one end of the connecting pipe 8 on one side of the fourth reactor 9, and a second flange 12 is integrally provided at the air inlet end of the storage tank 13. A plurality of fixing bolts 11 are connected between the first flange 10 and the second flange 12 to facilitate the replacement of the storage tank 13.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel multi-stage vinyl chloride synthesis liquid phase conversion device, comprising a bottom plate (1), characterized in that: A control box (3) is arranged on one side of the top end of the bottom plate (1); a buffer tank (7), four reactors (9), and a storage tank (13) are sequentially connected to one side of the control box (3) through a connecting pipe (8); control valves (5) and flow meters (6) are sequentially arranged at the outer ends of two connecting pipes (8) between the control box (3) and the buffer tank (7); magnetic rings (15) are arranged inside the four reactors (9); catalysts (16) are arranged inside the four reactors (9); and the liquid level of the catalyst (16) is greater than that of the magnetic ring (15).

2. The novel multi-stage liquid phase conversion device for vinyl chloride synthesis according to claim 1 is characterized in that: A first flange (10) is integrally provided at one end of the connecting pipe (8) on one side of the fourth reactor (9), a second flange (12) is integrally provided at the air inlet end of the storage tank (13), and a plurality of fixing bolts (11) are connected between the first flange (10) and the second flange (12).

3. The novel multi-stage liquid phase conversion device for vinyl chloride synthesis according to claim 1 is characterized in that: Air inlet pipes (4) are provided at both ends of one side of the control box (3).

4. The novel multi-stage liquid phase conversion device for vinyl chloride synthesis according to claim 1 is characterized in that: Name labels (17) are affixed to the upper front ends of the four reactors (9).

5. The novel multi-stage liquid phase conversion device for vinyl chloride synthesis according to claim 1 is characterized in that: A placement seat (14) is fixedly provided on one side of the top end of the bottom plate (1).

6. The novel multi-stage liquid phase conversion device for vinyl chloride synthesis according to claim 1 is characterized in that: Support seats (2) are provided at the four corners of the bottom end of the base plate (1).

7. The novel multi-stage liquid phase conversion device for vinyl chloride synthesis according to claim 1 is characterized in that: A sealing valve (18) is provided at one end of the storage tank (13).

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