A reactor for the chlorination of methane

Abstract

The utility model relates to the technical field of methane chlorination reactor, and disclose a kind of methane chlorination reactor, including reactor body, the surface of the reactor body is connected with fairing, another end of the fairing is connected with connecting pipe, the two sides of the other end of connecting pipe are connected with cyclone tube, the inner chamber of cyclone tube is provided with the helical groove that can make airflow rotate, the helical groove direction of the inner chamber of two sides cyclone tube is opposite;The utility model in reactor body routine use, by two sides gas pipe to chlorine and methane are transported, and under the action of cyclone tube and helical groove, can make chlorine and methane form reverse rotation turbulent flow, further to make density difference be centrifugal force forced to break, improve mixing efficiency and reaction uniformity, and under the action of dynamic flow guide mechanism, mixed gas can be flow guided, further avoid gas backflow, improve the practicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of methane chlorination reactor technology, specifically a methane chlorination reactor. Background Technology

[0002] A methane chlorination reactor is an industrial device specifically designed for the chlorination of methane. The methane chlorination reaction refers to the chemical reaction under specific conditions (typically requiring a catalyst, suitable temperature, and pressure) in which hydrogen atoms in methane molecules are replaced by chlorine atoms, producing a mixture of chlorinated methanes such as chloromethane, dichloromethane, trichloromethane (chloroform), and carbon tetrachloride.

[0003] In the methane chlorination process, the significant density difference between methane and chlorine presents a mixing challenge. Methane is less dense and lighter, while chlorine is denser and heavier; if a traditional straight-pipe feed method is used, the two gases easily separate into layers. This separation can lead to a series of problems. Excess chlorine in localized areas can promote deep chlorination side reactions, producing unnecessary byproducts; while excess methane in localized areas can reduce methane conversion, resulting in feed waste. Uneven gas mixing can also affect reaction selectivity, reduce catalyst utilization, and even create localized hot spots within the reactor, disrupting the reactor's normal operating environment and severely impacting the stability and production efficiency of the methane chlorination reactor. Utility Model Content

[0004] The purpose of this invention is to provide a methane chlorination reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a methane chlorination reactor, comprising a reactor body, a flow guide hood connected to the surface of the reactor body, a connecting pipe connected to the other end of the flow guide hood, swirling tubes connected to both sides of the other end of the connecting pipe, a spiral groove provided in the inner cavity of the swirling tube to allow the airflow to rotate, the spiral grooves provided in the inner cavities of the two swirling tubes being in opposite directions, and a gas supply pipe connected to the other end of the swirling tube. A dynamic flow guiding mechanism fixed to one side of the surface of the connecting pipe.

[0006] Preferably, the dynamic airflow guiding mechanism includes a motor fixed to the inner cavity of the housing, the output shaft of the motor is provided with a first transmission shaft through bevel gear transmission, the other end of the first transmission shaft is provided with a second transmission shaft through bevel gear transmission, and the other end of the second transmission shaft is fixed with a blower fan.

[0007] Preferably, the first drive shaft rotates within the inner cavity of the air guide, and a support frame is rotatably mounted on the surface of the second drive shaft, with the other end of the support frame fixed to the surface of the air guide.

[0008] Preferably, the blower fan is made of antistatic composite material, and the shaft is grounded through a rotating conductive connector.

[0009] Preferably, the flow guide is cone-shaped, with a small diameter connected to the connecting pipe and a large diameter connected to the reactor body.

[0010] Preferably, the cyclone tubes on both sides are of the same specification, and the connection points between the two sides and the connecting tubes are symmetrical about the reactor body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In the daily use of the reactor body, this utility model transports chlorine and methane through gas delivery pipes on both sides. Under the action of the cyclone pipe and spiral groove, chlorine and methane can form a counter-rotating turbulent flow, thereby forcibly breaking the density difference by centrifugal force, improving mixing efficiency and reaction uniformity. Furthermore, under the action of the dynamic flow guiding mechanism, the mixed gas can be guided to avoid gas backflow and improve the practicality of the device. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0013] In the figure: 1. Reactor body; 2. Flow guide hood; 3. Connecting pipe; 4. Swirl pipe; 5. Gas supply pipe; 6. Casing; 7. Dynamic flow guide mechanism; 71. Motor; 72. First drive shaft; 73. Second drive shaft; 74. Fan; 8. Support frame; 9. Spiral groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4As shown, a methane chlorination reactor includes a reactor body 1. A flow guide hood 2 is connected to the surface of the reactor body 1, and a connecting pipe 3 is connected to the other end of the flow guide hood 2. The flow guide hood 2 is cone-shaped, with a small diameter connected to the connecting pipe 3 and a large diameter connected to the reactor body 1. When gas enters the flow guide hood 2 through the connecting pipe 3, the shape of the flow guide hood 2 can guide the gas flow, making the gas pressure at the large diameter end of the flow guide hood 2 lower and the gas pressure at the connecting pipe 3 higher, thereby achieving the purpose of preventing gas backflow.

[0016] Both sides of the other end of the connecting pipe 3 are connected to cyclone pipes 4. The inner cavity of the cyclone pipe 4 is provided with spiral grooves 9, and the spiral grooves 9 in the inner cavities of the two cyclone pipes 4 are in opposite directions. The specifications of the two cyclone pipes 4 are the same, and the connection parts of the two sides and the connecting pipe 3 are symmetrical about the reactor body 1. This ensures that when the two cyclone pipes 4 deliver gas to the connecting pipe 3, the effect produced is the same, thereby improving the uniformity of the mixing of the two gases.

[0017] The other end of the cyclone tube 4 is connected to the air supply pipe 5. A dynamic flow guiding mechanism 7 is fixed to one side of the surface of the connecting pipe 3. The dynamic flow guiding mechanism 7 includes a motor 71 fixed to the inner cavity of the housing 6. The output shaft of the motor 71 is connected to a first drive shaft 72 via bevel gear transmission. The other end of the first drive shaft 72 is connected to a second drive shaft 73 via bevel gear transmission. A blower 74 is fixed to the other end of the second drive shaft 73. The blower 74 is made of anti-static composite material, and its shaft is grounded through a rotating conductive connector. Methane is flammable, chlorine is a strong oxidizer, and static sparks may cause an explosion. Therefore, this design improves the performance of the device. The practicality is that under the action of the motor 71, the first drive shaft 72 rotates, and then the second drive shaft 73, which is driven by bevel gears to the first drive shaft 72, enables the fan 74 to work. The first drive shaft 72 rotates in the inner cavity of the guide shroud 2, and a support frame 8 is rotatably provided on the surface of the second drive shaft 73. The other end of the support frame 8 is fixed to the surface of the guide shroud 2, which provides a limit for the operation of the second drive shaft 73 and improves the stability of the second drive shaft 73 when it is working. In addition, the rotation of the first drive shaft 72 in the inner cavity of the guide shroud 2 can also improve the stability of the first drive shaft 72 when it rotates.

[0018] In the daily use of the reactor body 1, this utility model transports chlorine and methane through the gas supply pipes 5 on both sides. Under the action of the cyclone pipe 4 and the spiral groove 9, the chlorine and methane can form a reverse rotating turbulent flow, thereby forcibly breaking the density difference by centrifugal force, improving the mixing efficiency and reaction uniformity. Furthermore, under the action of the dynamic flow guiding mechanism 7, the mixed gas can be guided to avoid gas backflow and improve the practicality of the device.

[0019] Working principle: When this device is in use, the gas supply pipes 5 on both sides can transport methane through one side and chlorine through the other side. When the gas reaches the cyclone tube 4 through the gas supply pipe 5, it can be guided by the spiral groove 9, so that the gas on both sides rotates in opposite directions. After the two streams of gas enter tangentially, they form a reverse rotating turbulent flow. The density difference is forcibly broken by centrifugal force, so that chlorine and methane can be mixed better, improving mixing efficiency and reaction uniformity. In addition, when the gas enters the guide shroud 2 through the cyclone tube 4 and the connecting pipe 3, the conical section of the guide shroud 2 can decelerate the airflow and form a pressure difference at both ends, thereby preventing backflow. In addition, in daily operation, the first drive shaft 72 and the second drive shaft 73 can be rotated by the motor 71, which in turn causes the fan 74 to blow and guide the gas to the next working stage.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A methane chlorination reactor, comprising a reactor body (1), characterized in that: The surface of the reactor body (1) is connected to a flow guide hood (2), and the other end of the flow guide hood (2) is connected to a connecting pipe (3). Both sides of the other end of the connecting pipe (3) are connected to swirl tubes (4). The inner cavity of the swirl tube (4) is provided with a spiral groove (9) that can make the airflow rotate. The spiral grooves (9) provided in the inner cavities of the two sides of the swirl tube (4) are in opposite directions. The other end of the swirl tube (4) is connected to a gas supply pipe (5). A dynamic flow guiding mechanism (7) is fixed to one side of the surface of the connecting pipe (3); The dynamic flow guiding mechanism (7) includes a motor (71) fixed in the inner cavity of the housing (6). The output shaft of the motor (71) is provided with a first transmission shaft (72) through bevel gear transmission. The other end of the first transmission shaft (72) is provided with a second transmission shaft (73) through bevel gear transmission. The other end of the second transmission shaft (73) is fixed with a blower fan (74).

2. The methane chlorination reactor according to claim 1, characterized in that: The first drive shaft (72) rotates in the inner cavity of the shroud (2), and the surface of the second drive shaft (73) is rotatably provided with a support frame (8), the other end of which is fixed to the surface of the shroud (2).

3. A methane chlorination reactor according to claim 1, characterized in that: The blower (74) is made of antistatic composite material and the shaft is grounded through a rotating conductive connector.

4. A methane chlorination reactor according to claim 1, characterized in that: The flow guide shroud (2) is cone-shaped, with a small diameter connected to the connecting pipe (3) and a large diameter connected to the reactor body (1).

5. A methane chlorination reactor according to claim 1, characterized in that: The specifications of the cyclone tubes (4) on both sides are the same, and the connection parts of the two sides and the connecting tube (3) are symmetrical about the reactor body (1).

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