A sx and sl hybrid static mixer device

Abstract

The utility model discloses a kind of SX and SL mixed type static mixers, it is related to ethanolamine production equipment technical field, it includes mixing pipe, mixing pipe both ends open, it is characterized by: mixing pipe is mixed cavity, one end of mixing pipe is used to connect liquid nitrogen import flange, the other end of mixing pipe is mixed fluid export, epoxyethane import flange is installed intercommunication in the side of mixing pipe close to liquid nitrogen import flange, spiral jet injector inserts mixed cavity, SX type inner part and SL type inner part are sequentially arranged along the injection direction of spiral jet injector, the SL type inner part is composed of multiple helical blades, the SX type inner part is composed of staggered arrangement plate blade, spiral jet injector is composed of helical nozzle and inner extension pipe assembly, inner extension pipe is fixedly connected with epoxyethane import flange, helical nozzle is inserted into mixed cavity by inner extension pipe, solve the technical problem that single type static mixer mixes poor effect, polymer is easily blocked in mixing process, reaction pressure drop increases.

Description

Technical Field

[0001] This utility model relates to the technical field of ethanolamine production equipment, and in particular to a static mixer device for mixing SX and SL. Background Technology

[0002] A static mixer is a device that can mix fluids without external power. It is widely used for mixing liquids with liquids, liquids with gases, and liquids with solid particles. Single-type mixers have poor mixing effects and are prone to polymer blockage and increased reaction pressure drop during the mixing process. Based on this, our company has developed an SX and SL combined static mixing device to replace the existing technology. Utility Model Content

[0003] The purpose of this invention is to provide a static mixer device that combines SX and SL types to solve the technical problems of poor mixing effect, easy polymer blockage during mixing, and increased reaction pressure drop caused by single-type mixers.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an SX and SL type static mixer device, including a mixing tube with open ends, characterized in that: the mixing tube is a mixing chamber, one end of the mixing tube is used to connect to a liquid nitrogen inlet flange, the other end of the mixing tube is a mixed fluid outlet, an ethylene oxide inlet flange is installed on the side of the mixing tube near the liquid nitrogen inlet flange, a spiral injector is inserted into the mixing chamber, and SX type internals and SL type internals are arranged sequentially along the injection direction of the spiral injector.

[0005] Furthermore: the spiral injector consists of a spiral nozzle and an inner tube assembly. The inner tube is fixedly connected to the ethylene oxide inlet flange, and the spiral nozzle is inserted into the mixing chamber through the inner tube.

[0006] Furthermore, the SL-type internal component is composed of multiple helical blades.

[0007] Furthermore, the SX-type internal component is composed of staggered plate-shaped blades.

[0008] Compared to existing technologies, the advantages of this solution are as follows: By using SX-type internals composed of staggered 90° plate-shaped blades, adjacent blades are cross-mounted at 90° to form an orthogonal network, promoting radial mixing and sufficient fluid. SL-type internals composed of helical blades, with each unit having an included angle of 60° and adjacent units staggered at 90°, provide a high number of segmentation times for the resulting flow channels, achieving recombination and mixing. The integrated use of SX-type and SL-type internals reduces the generation of ethylene oxide polymers and shortens the reaction time of materials in the mixer. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0010] Figure 1 This is the front view of the present utility model;

[0011] Figure 2 This utility model Figure 1 A partial sectional view at point A in the middle;

[0012] Figure 3 This is a utility model Figure 1 A partial sectional view at point B in the middle.

[0013] Legend:

[0014] 1. Mixing pipe; 2. Liquid nitrogen inlet flange; 3. Mixed fluid outlet; 4. Ethylene oxide inlet flange; 5. Mixer; 6. SX type internals; 7. SL type internals; 8. Spiral nozzle; 9. Inner extension pipe assembly. Detailed implementation method:

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] Reference Figures 1-3 As shown, an SX and SL type static mixer device includes a mixing pipe 1, which is open at both ends. The mixing pipe 1 contains a mixing chamber 5. One end of the mixing pipe 1 is used to connect to a liquid nitrogen inlet flange 2, and the other end of the mixing pipe 1 is a mixed fluid outlet 3. An ethylene oxide inlet flange 4 is installed on the side of the mixing pipe 1 near the liquid nitrogen inlet flange 2. A spiral injector is inserted into the mixing chamber 5. SX type internals 6 and SL type internals 7 are arranged sequentially along the injection direction of the spiral injector. The SL type internals 7 are composed of multiple spiral blades, and the SX type internals 6 are composed of staggered plate blades.

[0017] The spiral injector consists of a spiral nozzle 8 and an inner tube assembly 9. The inner tube assembly 9 is fixedly connected to the ethylene oxide inlet flange 4, and the spiral nozzle 8 is inserted into the mixing chamber 5 through the inner tube assembly 9.

[0018] By adopting the above technical solution: the mixing pipe 1 is connected to the outlet pipeline of the liquid nitrogen pump through the liquid nitrogen inlet flange 2, and the mixing pipe 1 is connected to the outlet pipeline of the ethylene oxide pump through the ethylene oxide inlet flange 4. The mixture of liquid nitrogen and catalyst enters the mixing chamber 5 of the mixing pipe 1 from the liquid nitrogen inlet flange 2. Ethylene oxide is introduced into the spiral injector from the ethylene oxide inlet flange and sprayed into the mixing chamber 5 through the spiral nozzle 8 to form a preliminary dispersion. The mixture of liquid nitrogen, catalyst and ethylene oxide first contacts the SX type internal component 6 along the mixing chamber 5. The SX type internal component 6 is composed of plate-shaped blades arranged at 90° intervals. The adjacent blades are cross-installed at 90° to form an orthogonal network, which promotes the radial mixing and full mixing of the fluid. Then it passes through the SL type internal component 7, which is composed of spiral blades. The included angle of each unit is 60° and the adjacent units are staggered by 90°. The resulting flow channel provides a high number of divisions, realizing recombination and mixing.

[0019] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A SX and SL hybrid static mixer device comprising a mixing tube (1) open at both ends, characterized in that: The mixing tube (1) has a mixing chamber (5), one end of the mixing tube (1) is used for connecting a liquid nitrogen inlet flange (2), the other end of the mixing tube (1) is a mixed fluid outlet (3), an ethylene oxide inlet flange (4) is installed in communication on the side of the mixing tube (1) close to the liquid nitrogen inlet flange (2), a spiral ejector is inserted into the mixing chamber (5), and an SX type inner part (6) and an SL type inner part (7) are arranged in sequence along the jetting direction of the spiral ejector.

2. A SX and SL hybrid static mixer device according to claim 1, wherein, The spiral ejector is composed of a spiral nozzle (8) and an inner extension pipe assembly (9), the inner extension pipe assembly (9) is fixedly connected with the ethylene oxide inlet flange (4), and the spiral nozzle (8) is inserted into the mixing chamber (5) through the inner extension pipe assembly (9).

3. A SX and SL hybrid static mixer device according to claim 2, wherein, The SL type inner part (7) is composed of a plurality of spiral blades.

4. A SX and SL hybrid static mixer device according to claim 3, wherein, The SX type inner part (6) is composed of plate-shaped blades arranged in an interlaced manner.

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