Rotational flow tubular reactor

Abstract

The invention discloses a rotational flow tubular reactor, which solves the problems of non-uniform reaction, long reaction time, long pipeline, low efficiency and the like in the prior art, and is characterized in that a rotational flow internal part is arranged in a reaction tube (1), the rotational flow internal part consists of a fixed shaft (2) and a blade rotational flow part (3), the blade rotational flow part (3) is fixed on the fixed shaft (2) at a certain angle, and the blade rotational flow part (3) is fixed on the fixed shaft (2). The blade rotational flow piece (3) is inserted into the reaction tube (1), and the fixed shaft (2) of the blade rotational flow piece (3) is connected with the reaction tube (1) into a whole. A rotational flow channel is formed in the reaction tube through the rotational flow inner piece, reactants flowing through the reaction tube are acted by the rotational flow inner piece, turbulence of the reactants in the tube is intensified, mixing in fluid is enhanced, heat transfer and mass transfer efficiency is improved, reaction time is shortened, and the device has the advantages of being low in cost, high in efficiency, capable of saving energy and the like. The method can be widely applied to petrochemical engineering, fine chemical engineering, food, biological pharmacy and other industries.

Description

Technical Field

[0001] The present invention belongs to the field of pharmaceutical and chemical equipment, and particularly relates to a cyclone tube reactor. Background Art

[0002] A tube reactor is a continuous operation reactor in the shape of a tube with a large length-diameter ratio. It can be divided into a single-tube reactor and a multi-tube reactor according to its structure, and can be divided into a horizontal tube reactor, a vertical tube reactor, and a coil tube reactor according to its installation method. For example, a horizontal tube reactor is composed of a single tube (straight tube or coil tube) continuously or multiple parallel tubes, and generally is provided with a sleeve or a shell-and-tube heat exchange device. During operation, the reactants are continuously added from one end, continuously react in the tube, and continuously flow out from the other end, thus achieving the required conversion. It is widely used in pharmaceutical and chemical production. Due to the relatively simple pipeline structure in the prior art, the pipeline is long, the pressure drop is large, the power and heat consumption are large, there are problems such as insufficient mixing, low heat and mass transfer efficiency, too long reaction time, and low conversion rate, and its application is greatly limited. Summary of the Invention

[0003] The purpose of the present invention is to provide a cyclone tube reactor in the market with a scientific and reasonable structure, which can improve fluid mixing, enhance heat transfer efficiency, shorten reaction time, improve reaction efficiency, and save energy consumption.

[0004] The technical solution of the present invention is: it is composed of a reaction tube, an inlet and outlet pipe orifice, a control device, etc., and a cyclone internal member is arranged in the reaction tube. The cyclone internal member is composed of a fixed shaft and a blade cyclone member, etc., and the blade cyclone members are uniformly distributed and fixed on the fixed shaft. The cyclone internal member is inserted into the reaction tube, and both ends of the fixed shaft are integrally connected with the reaction tube.

[0005] Further, a shaft hole is arranged at the central position of the blade cyclone member, and the included angle between its width direction and the fixed shaft is 2 - 85°, and a fixed sleeve is sleeved on the fixed shaft.

[0006] Further, in order to improve the compressive capacity of the blade cyclone member, reinforcing ribs are arranged on its surface.

[0007] Furthermore, the blade cyclone members can be evenly distributed on the fixed shaft in a staggered direction, or can be evenly distributed on the fixed shaft 2 in the same direction at intervals of 1 - 3 pieces.

[0008] The beneficial effects of the present invention are: since a cyclone internal member is arranged in the reaction tube, a cyclone-shaped channel is formed in the reaction tube. The reactants flowing through the reaction tube are acted on by the cyclone members, so that the reactants are intensified in turbulence in the tube, the mixing inside the fluid is enhanced, the heat and mass transfer efficiency is improved, and the reaction time is shortened. It has the advantages of reducing costs, improving efficiency, and saving energy, and can be widely used in industries such as petrochemical, fine chemical, food, and biopharmaceutical industries.

[0009] The following structural drawings further illustrate the present invention. Brief Description of the Drawings

[0010] Figure 1 It is a schematic front view structure diagram of a part of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the present invention; Figure 3 It is a schematic front view structure diagram of the vane swirl member of the present invention; Figure 4 It is a schematic top view structure diagram of the vane swirl member of the present invention.

[0011] In the figure: 1 is a reaction tube, 2 is a fixed shaft, 3 is a vane swirl member, 4 is a reinforcing rib, and 5 is a shaft hole. Detailed Description of the Invention

[0012] As Figure 1 , Figure 2 shown, a swirl tube reactor is composed of components such as a reaction tube 1, inlet and outlet nozzles, and a control device. A swirl inner member is arranged in the reaction tube 1. The swirl inner member is composed of a fixed shaft 2 and a vane swirl member 3, etc. A shaft hole 5 is arranged at the central position of the vane swirl member 3. The included angle between the width direction of the fan blades and the fixed shaft 2 is 2 to 85°, and they are evenly distributed and fixed on the fixed shaft 2. The vane swirl members 3 can be staggered and evenly distributed on the fixed shaft 2 at a certain angle (such as an included angle of 30 to 60° between the front and rear two), or can be evenly distributed in the same direction on the fixed shaft 2 at intervals of 1 to 3. In order to improve the compressive capacity of the vane swirl member 3, reinforcing ribs 4 can also be added on its surface. The swirl inner member is inserted into the reaction tube 1, and both ends of the fixed shaft 2 are fixed to the reaction tube 1. When implementing the present invention, an inlet nozzle for adding and mixing reactants can also be installed before the reactant inlet nozzle, which is suitable for the reaction of multiple reactants. After the reactants are mixed, they are pumped into the reaction tube 1 of the reactor from the reactant inlet nozzle by a material pump, and at the same time, a heat source (such as heat-conducting oil or steam, etc.) is sent into the shell-and-tube heat exchange tube 2 outside the reaction tube 1, so that the reactants in the reaction tube 1 exchange heat with the heating medium in the shell-and-tube heat exchange tube 2. After the heat exchange, the temperature of the reactants in the reaction tube 1 rises to the set process temperature. After being guided by the vane swirl member 3 of the swirl inner member, the reactants are pushed backward in a swirling state, which can not only enhance the internal mixing of the fluid, but also improve the heat transfer and mass transfer efficiency, shorten the reaction time, improve the reaction efficiency, and save energy consumption. It has the advantages of low cost, high efficiency, energy saving, etc., and can be widely used in industries such as petrochemical, fine chemical, food, and biopharmaceutical industries.

[0013] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cyclonic tubular reactor, comprising a reaction tube (1), an inlet and outlet and a control device, characterized in that: A swirl internal part is arranged in the reaction tube (1), and the swirl internal part is composed of a fixed shaft (2) and a blade swirl part (3). The blade swirl part (3) is evenly distributed and fixed on the fixed shaft (2). The swirl internal part is inserted into the reaction tube (1), and both ends of the fixed shaft (2) are connected to the reaction tube (1) as a whole.

2. A cyclone tubular reactor according to claim 1, characterized in that: An axial hole (5) is provided at the center of the blade swirl element (3), and its width direction forms an angle of 2 to 85 degrees with the fixed shaft (2), and the fixed sleeve is inserted on the fixed shaft (2).

3. A cyclone tubular reactor according to claim 1 or 2, characterized in that: The blade swirl element (3) is provided with a reinforcing rib (4).

4. A cyclone tubular reactor according to claim 3, characterized in that: The blade swirl elements (3) are evenly distributed on the fixed shaft (2) in a staggered manner.

5. A cyclone tubular reactor according to claim 3, characterized in that: The blade swirl elements (3) are evenly distributed on the fixed shaft (2) in the same direction at intervals of 1 to 3 blades.

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