Multistage heating material reactor

Abstract

The utility model provides a multistage heating material reactor which comprises a material heating reaction tower, a supporting base is fixedly arranged at the bottom of the material heating reaction tower to play a role in stable supporting, and a material input pipeline is arranged at the central position of the top end of the material heating reaction tower in a communicated mode. According to the scheme, the reaction time of the input material can be prolonged through a single-tower cycle mode, so that the production purity of the material is improved in the reaction process, a reaction material with higher purity can be obtained and output for subsequent reaction, the production purity of the process is improved, the material heating time is prolonged through a double-tower series structure, and the production efficiency of the process is improved. Meanwhile, the temperature difference can be controlled by changing the temperature of the heat conduction oil flowing through the heat conduction pipelines in the material heating reaction towers on the two sides, compared with a mode of heating through the temperature difference, the method adapts to more material reaction heating processes, and in the hydrogenation reaction, the heating reaction time is prolonged, and the purity of obtained gas can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to a multi-stage material heating reactor. Background Art

[0002] Hydrogenation is a process in which hydrogen atoms are added to hydrocarbon compounds in the presence of a catalyst. This reaction is often used to convert unsaturated hydrocarbons into saturated hydrocarbons, or to remove impurities such as sulfur and nitrogen from hydrocarbons. In a double tower structure, the hydrogenation reaction is usually carried out in the first tower, which is equipped with a suitable catalyst and operated at a certain temperature and pressure.

[0003] Preheating is an important step before hydrogenation reaction. It involves heating the reaction materials to an appropriate temperature to promote the subsequent hydrogenation reaction. Preheating can be achieved by heat exchangers, heating furnaces or other heating equipment, the purpose of which is to enable the materials to reach the activation energy required for the reaction and increase the reaction rate and conversion rate. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a multi-stage material heating reactor, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a multi-stage material heating reactor, comprising a material heating reaction tower, a support base is fixedly provided at the bottom of the material heating reaction tower to play a stable support effect, a material input pipeline is connected to the center position of the top of the material heating reaction tower, a flow meter is installed at the top of the material heating reaction tower and on the other side of the material input pipeline, a heating reaction chamber is provided in the material heating reaction tower, the material input pipeline is connected to the top of the heating reaction chamber, a heat conduction pipeline is provided on the inner wall of the material heating reaction tower, a plurality of heat conduction oil input ports are connected to one side of the outer end surface of the material heating reaction tower, and the heat conduction oil input ports are arranged in a matrix, and a plurality of heat conduction oil output ports are connected to the other side of the outer end surface of the material heating reaction tower, and the heat conduction oil output ports are arranged in a matrix, and the heat conduction oil input port and the heat conduction oil output port are respectively connected to the inlet and outlet of the heat conduction pipeline.

[0008] Preferably, a pipeline switcher is installed on one side below the material heating reaction tower, and the material output pipeline is connected to one side of the pipeline switcher.

[0009] Preferably, a gate handle is rotatably provided at the top of the pipeline switch, and the gate handle has a switching control effect.

[0010] Preferably, a return pipe is connected between the side of the material input pipe and the bottom of the pipe switcher.

[0011] Preferably, an output interface is provided on one end surface of the pipeline switch, and the output interface is connected to the material outlet.

[0012] Preferably, several material heating reaction towers are arranged side by side, and the output interface at the bottom of the material heating reaction tower at the head end is connected to the material input pipeline at the top of the material heating reaction tower on one side by a series pipeline, and at this time, the output interface of the material heating reaction tower at the tail end is connected to the material outlet.

[0013] (III) Beneficial effects

[0014] The utility model provides a multi-stage material heating reactor, which has the following beneficial effects:

[0015] 1. This scheme can improve the reaction time of input materials through the single-tower cycle mode, thereby improving the production purity of materials during the reaction process, thereby obtaining higher-purity reaction materials and outputting them for subsequent reactions, thereby improving the production purity of the process.

[0016] 2. This scheme prolongs the material heating time through a multi-tower series structure. At the same time, the temperature difference can be controlled by changing the temperature of the heat transfer oil flowing through the heat transfer pipes in the material heating reaction towers on both sides. It is suitable for more material reaction heating processes than the temperature difference heating method. In the hydrogenation reaction, prolonging the heating reaction time can improve the purity of the obtained gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the working state of the second embodiment of the utility model;

[0020] Figure 4 For this utility model Figure 3 Cross-sectional view along the AA direction.

[0021] In the figure: 101, material heating reaction tower; 102, flow meter; 103, material input pipeline; 104, support base; 105, pipeline switch; 106, output interface; 107, gate handle; 108, thermal oil input port; 110, heating reaction chamber; 111, reflux pipeline; 112, material output pipeline; 113, heat transfer pipeline; 114, thermal oil output port; 115, series pipeline. DETAILED DESCRIPTION

[0022] The utility model embodiment provides a multi-stage material heating reactor, such as Figure 1-2 The first embodiment of the utility model is shown, which includes a material heating reaction tower 101. A support base 104 is fixedly provided at the bottom of the material heating reaction tower 101 to play a stable supporting effect. A material input pipeline 103 is connected to the center of the top of the material heating reaction tower 101. A flow meter 102 is installed at the top of the material heating reaction tower 101 and on the other side of the material input pipeline 103. A heating reaction chamber 110 is provided in the material heating reaction tower 101. The material input pipeline 103 is connected to the top of the heating reaction chamber 110. A heat conduction pipeline 113 is provided on the inner wall of the material heating reaction tower 101. A plurality of heat conduction oil input ports 108 are connected to one side of the outer end surface of the material heating reaction tower 101. The heat conduction oil input ports 108 are arranged in a matrix. A plurality of heat conduction oil output ports 114 are connected to the other side of the outer end surface of the material heating reaction tower 101. The heat conduction oil output ports 114 are arranged in a matrix. The heat conduction oil input port 108 and the heat conduction oil output port 114 are respectively connected to the inlet and outlet of the heat conduction pipeline 113.

[0023] It should be noted that the interior of the heating reaction chamber 110 is divided into three spaces by a partition, so as to achieve different heating reaction times in the three spaces and extend the residence time of the material in the heating reaction chamber 110. A connecting pipe is provided in the partition.

[0024] It is worth noting that heat transfer oil is introduced into the heat transfer pipe 113 through the heat transfer oil inlet 108 to perform heat exchange on the interior of the heating reaction chamber 110 to achieve heating.

[0025] Furthermore, a pipeline switcher 105 is installed at one side below the material heating reaction tower 101 , and the material output pipeline 112 is connected to one side of the pipeline switcher 105 .

[0026] Furthermore, a gate handle 107 is rotatably provided at the top of the pipeline switch 105, and the gate handle 107 plays a switching control effect.

[0027] It should be noted that a plurality of branch pipes are provided in the pipe switcher 105 , and the gate handle 107 is used to achieve the effect of branch control.

[0028] Furthermore, a reflux pipe 111 is connected between the side of the material input pipe 103 and the bottom of the pipe switcher 105 .

[0029] It should be noted that an air pressure pump is provided at the connection between the pipeline switch 105 and the return pipeline 111 .

[0030] Furthermore, an output interface 106 is provided on one end surface of the pipeline switch 105 , and the output interface 106 is connected to the material outlet.

[0031] It should be noted that the material outlet can output the heated material to subsequent process equipment, such as to a gas-liquid separation tank for further reaction.

[0032] like Figure 3 and Figure 4 As shown, it is the second embodiment of the utility model. This embodiment is the same as the device of embodiment 1, except that a plurality of material heating reaction towers 101 are arranged side by side, and the output interface 106 at the bottom of the material heating reaction tower 101 at the head end is connected to the material input pipeline 103 at the top of the material heating reaction tower 101 on one side by a series pipeline 115. At this time, the output interface 106 of the material heating reaction tower 101 at the tail end is connected to the material outlet.

[0033] It should be further explained that an entire reaction tower unit generally adopts two to four series connections, among which one to three material heating reaction towers 101 are used for the main process reaction, and the material heating reaction tower 101 at the tail end is used for high-temperature calcination regeneration of the catalyst. Secondly, multiple reaction tower units can be used in parallel to improve the output efficiency of the process reaction.

[0034] It is worth noting that all the material heating reaction towers 101 can be rotated for high-temperature calcination regeneration, which can not only improve the series use effect of the multi-stage material heating reaction towers 101 in the process reaction through the rotation effect, but also can continue the process reaction through direct rotation when one of the material heating reaction towers 101 fails, thereby reducing the impact of the equipment failure.

[0035] When using this solution, first use the material heating reaction tower 101 to install and fix it to the specific process section position. After installation and fixation, first connect the thermal oil inlet 108 on one side with the thermal oil outlet of the workshop, and connect the thermal oil outlet 114 on the other side with the thermal oil return port of the workshop.

[0036] When heating the material, the material input pipe 103 is connected to the material pipe, and the material that needs to be preliminarily heated is input into the uppermost layer of the heating reaction chamber 110 inside the material heating reaction tower 101 through the material input pipe 103. After the reaction reaches a certain time, as the material is continuously input, the material is transported downward step by step through the pipes connected in the partition, and the input material is heated and reacted step by step. When the material is input to the bottom of the heating reaction chamber 110, the control switch of the gate handle 107 is used to connect the material output pipe 112 with the reflux pipe 111. Then, the material heated to the bottom is started by the air pressure pump, and guided to reflux to the top of the material heating reaction tower 101 through the reflux pipe 111, and input to the top of the heating reaction chamber 110 again, and the material heating work is performed again. Through the form of single tower circulation, the material heating time is extended, and after the material is fully and evenly heated, the gate handle 107 is used to control the switching, and the evenly heated material is output to the outside through the output interface 106.

[0037] When a multi-tower reaction unit is used, the output interface 106 at the bottom of the material heating reaction tower 101 on one side is connected to the material input pipeline 103 at the top of the material heating reaction tower 101 on the other side to achieve series connection. At this time, the output interface 106 of the material heating reaction tower 101 at the tail end is connected to the material outlet. When the material heating reaction is carried out, the material heating time is extended by using multiple parallel material heating reaction towers 101. At the same time, the temperature difference can be controlled by changing the temperature of the heat transfer oil flowing through the heat transfer pipeline 113 in the material heating reaction towers 101 on both sides. By temperature difference heating, more material reaction heating processes can be adapted. In the hydrogenation reaction, extending the heating reaction time can improve the purity of the obtained gas. At the same time, the material heating reaction tower 101 at the tail end is used for high-temperature calcination regeneration of the catalyst.

[0038] 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. A multi-stage material heating reactor, comprising a material heating reaction tower (101), characterized in that: A support base (104) is fixedly provided at the bottom of the material heating reaction tower (101); a material input pipeline (103) is connected to the center of the top of the material heating reaction tower (101); a flow meter (102) is installed at the top of the material heating reaction tower (101) and on the other side of the material input pipeline (103); a material output pipeline (112) is connected to the lower end of the material heating reaction tower (101); a heating reaction chamber (110) is provided in the material heating reaction tower (101); the material input pipeline (103) is connected to the heating reaction chamber (110); ) is connected to the top of the material heating reaction tower (101), a heat transfer pipe (113) is provided on the inner wall of the material heating reaction tower (101), a plurality of heat transfer oil input ports (108) are provided on one side of the outer end surface of the material heating reaction tower (101), and the heat transfer oil input ports (108) are arranged in a matrix, and a plurality of heat transfer oil output ports (114) are provided on the other side of the outer end surface of the material heating reaction tower (101), and the heat transfer oil output ports (114) are arranged in a matrix, and the heat transfer oil input ports (108) and the heat transfer oil output ports (114) are respectively connected to the inlet and outlet of the heat transfer pipe (113).

2. A multi-stage material heating reactor according to claim 1, characterized in that: A pipeline switch (105) is installed on one side below the material heating reaction tower (101), and the material output pipeline (112) is connected to one side of the pipeline switch (105).

3. A multi-stage material heating reactor according to claim 2, characterized in that: A gate handle (107) is rotatably provided at the top of the pipeline switch (105).

4. A multi-stage material heating reactor according to claim 3, characterized in that: A return pipe (111) is connected between the side of the material input pipe (103) and the bottom of the pipe switcher (105).

5. A multi-stage material heating reactor according to claim 2, characterized in that: An output interface (106) is provided on one end surface of the pipeline switch (105), and the output interface (106) is connected to the material outlet.

6. A multi-stage material heating reactor according to claim 5, characterized in that: A plurality of the material heating reaction towers (101) are arranged side by side, and the output interface (106) at the bottom of the material heating reaction tower (101) at the head end is connected to the material input pipeline (103) at the top of the material heating reaction tower (101) at one side by a series pipeline (115), and the output interface (106) of the material heating reaction tower (101) at the tail end is connected to the material outlet.

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