CN2518585Y - Gas spouted outside circulation reaction device - Google Patents

Abstract

A blast-driven external-circumfluence reaction device comprises a condenser 1, a gas-liquid separator 2, an adjusting valve 3, a circulating pipe 4, a heat exchanger 5, a nozzle 6, a throttling element 7, a cylinder body 8, a reflecting plate 9, a material feeder 10, an ejecting tube 11, and a material discharging part 12. Adopting the gas blast ejection to substitute other energy input modes, the device has high mass and heat transfer efficiency. Avoiding problems including wear to equipment and granular material, the utility model is applicable to various gas-liquid and gas-liquid-solid contact type normal-pressure or pressurized organic chemical engineering reactions.

Description

The outside circulation reaction unit is moved in gas blowout

Technical field the utility model belongs to the organic chemical industry field, is organic chemical industry's consersion unit.

Technical background

At present, solution-air both domestic and external, gas-liquid-solid contact reactor mainly contain air agitation reactor, bubbling column reactor, injection-type reactor, and there is shortcoming in the reactor of these types in varying degrees all at different aspect.Quality and heat transmission capacity as air agitation reactor and bubbling column reactor are poor; Though the injecting type circulation flow reactor has preferable quality transmission and heat transmission capacity, problems such as component wear, gas-liquid separation are difficult for solving.ZL95239681.5 has proposed a kind of gas circulation agitating device that is used for bioreactor, gas-liquid is repeatedly mixed and forms circulation; But in the organic chemical industry field, the reaction that this device is difficult to suitable those mass transfers for solution-air or gas-liquid-solid heterogeneous reaction, conducts heat and have relatively high expectations.

Summary of the invention

The utility model provides a kind of gas blowout to move the outside circulation reaction unit, comprising: condenser 1, gas-liquid separator 2, control valve 3, circulation pipe 4, heat exchanger 5, nozzle 6, restricting element 7, cylindrical shell 8, reflecting plate 9, feeder 10, induction tunnel 11, discharging opening 12.Condenser 1, gas-liquid separator 2 and cylindrical shell 8 from top to bottom vertically link to each other, and in the bottom of cylindrical shell 8 restricting element 7 are housed, and this element is the tubular element of a variable cross-section, comprises injection section a, mixer b and diffuser c.Nozzle 6 is positioned on the same axis in restricting element 7 belows, and induction tunnel 11 is positioned at the side-lower of nozzle 6 and vertical with it.The end face of induction tunnel 11 is lower than the upper limb of nozzle 6; Reflecting plate 9 is positioned at the vertical direction of cylindrical shell 8 restricting elements 7; Feeder 10 is positioned at the top, side of cylindrical shell 8; Be furnished with flow control valve 3 on the circulation pipe 4 and heat exchanger 5, one ends are connected cylindrical shell 8 upsides, the other end links to each other with discharging opening 12 with induction tunnel 11.

Require and the difference of reaction mass rerum natura according to the difference of all kinds of reaction pair mass transfers, heat transfer, described circulation pipe 4, control valve 3, heat exchanger 5 and the induction tunnel 11 that is attached thereto can be for single or many.In the time of many, be installed as suitable with symmetry.Reflecting plate 9 can be at the diverse location of the vertical direction of restricting element 7, and its shape is advisable with the spherical crown shape.Restricting element 7 can be adjusted within the specific limits with the relative size of nozzle 6: the height of common injection section a, mixer b, diffuser c is respectively 2～5,2～10,5～20 times of nozzle 6 diameters; The diameter of mixer b is generally 1.5～5.5 times of nozzle 6 diameters; Cylindrical shell 8 can be column type or tapered, generally is advisable with tapered, and cone angle is generally 25～65 degree.

This device sprays injection with gas medium and replaces other energy input mode, can be used for multiple solution-air and gas-liquid-solid contact normal pressure or pressurization organic chemical industry reaction, as the synthetic reaction of oxidation, carboxylation, sulfonation, reduction etc.According to the different requirements of reaction, can select different gas such as air, oxygen, carbon dioxide, sulfur trioxide, hydrogen etc. for use.

Course of reaction realizes in the following way:

In the cylindrical shell 8 that has condenser 1, constantly driving liquid with the gas medium with enough kinetic energy by nozzle 6 enters in the restricting element 7 of ad hoc structure, liquid is cut into vaporific by high velocity air, after having dissolved a large amount of gases simultaneously, along being advanced on restricting element 7 walls that the liquid phase body region finishes also is main mass transfer process for the first time, behind gas-liquid separator 2, enter condenser 1, the liquid phase main body is got back in the small amount of liquid that gas is carried secretly device 1 condensation that is condensed, gas emptying or recycle; And liquid phase by one or more outer circulating tube 4 under the effect of gas injection and density contrast, realize circulation, form reciprocal the contact with gas and carry out the quality transmission, circular flow can be connected heat exchanger 5 and be finished the heat transmission simultaneously by control valve 3 controls on circulation line.

Advantage of the present utility model:

1, sprays injection with gas and replace other energy input mode, reduced energy consumption, improved energy utilization ratio.

2, do not have the energy input equipment to contact, avoided the burn into sealing and the problems such as equipment and granule materials wearing and tearing of moving component with reaction medium.

3, with the shearing force of injection as hybrid power, simple in structure, mass transfer, heat transfer efficiency height through the experiment to some chemical reactions, can obviously shorten the reaction time, some reaction condition becomes gentle and realizes that easily selectivity and conversion ratio obviously improve.

4, this device can be used for multiple solution-air or gas-liquid-solid contact normal pressure and compressive reaction.

Description of drawings

Fig. 1 is the overall pattern of the moving outside circulation reaction unit of gas blowout;

Fig. 2 is the partial enlarged drawing of nozzle, restricting element induction tunnel.

The specific embodiment

Describe the utility model concrete structure in detail below in conjunction with accompanying drawing.

As shown in Figure 1, condenser 1, gas-liquid separator 2 and cylindrical shell 8 vertically link to each other, and in the bottom of cylindrical shell 8 restricting element 7 are housed; Nozzle 6 is positioned at the coaxial below of restricting element 7; The side-lower that induction tunnel 11 is positioned at nozzle 6 is also vertical with it.The end face of induction tunnel 11 is lower than the upper limb of nozzle 6; Feeder 10 is positioned at the top, side of cylindrical shell 8; In cylindrical shell 8, the vertical direction of restricting element 7 is equipped with reflecting plate 9; Be furnished with flow control valve 3 on the circulation pipe 4 and heat exchanger 5, one ends are connected cylindrical shell 8 upsides, the other end links to each other with discharging opening 12 with induction tunnel 11.Application Example:

Use this device and carry out sodium p-nitrotoluene-2-sulfonic acid sodium air catalytic oxidation generation 4,4 '-dinitro talan-2 in the non-aqueous media method DSD acid production, the reaction of 2 '-sodium disulfonate.

The moving outside circulation reaction unit tube of the gas blowout that reaction is adopted is high 1100 millimeters, single outer circulating tube is spent, had to cone angle 35.The height that is configured to injection section, mixer, diffuser of its restricting element is respectively 15 millimeters, 30 millimeters and 50 millimeters; , 17 millimeters of mixer diameters, 5 millimeters of nozzle diameters.Add sodium p-nitrotoluene-2-sulfonic acid sodium, solvent, liquid caustic soda, catalyst by a certain percentage, with 7.5 meters ³/ hour the flow bubbling air carry out catalytic oxidation.Compare with the reaction result of air agitation reactor: the reaction time shortened to 30 minutes by 6 hours, and the liquid caustic soda consumption reduces by 50%, and purpose product content improves 10%, and energy consumption reduces by 25%.

Claims (3)

1. A gas injection external circulation reaction device, comprising: condenser (1), gas-liquid separator (2), regulating valve (3), circulation pipe (4), heat exchanger (5), nozzle ( 6), throttling element (7), barrel (8), reflective plate (9), feeder (10), injection pipe (11), discharge port (12), is characterized in that: condenser (1 ), the gas-liquid separator (2) and the cylinder (8) are vertically connected from top to bottom, and a throttling element (7) is installed at the bottom of the cylinder (8), and the nozzle (6) is located at the throttle element (7) On the same axis below; the ejection pipe (11) is located below the side of the nozzle (6) and is perpendicular to it, and the end face of the ejection pipe (11) is lower than the upper edge of the nozzle (6); the reflection plate (9) is located on the cylinder (8) Vertically above the inner throttling element (7); the feeder (10) is located on the upper side of the cylinder (8); the circulation pipe (4) is equipped with a flow regulating valve (3) and a heat exchanger (5) , one end is connected to the upper side of the cylinder (8), and the other end is connected to the injection pipe (11) and the discharge port (12). 2. The reaction device according to claim 1, characterized in that: said throttling element (7) is a tubular member with variable cross-section, including an injection section (a), a mixing section (b) and a diffusion section (c); the heights of the injection section (a), the mixing section (b), and the diffusion section (c) are respectively 2 to 5, 2 to 10, and 5 to 20 times the diameter of the nozzle (6); the mixing section (b) The diameter is 1.5～5.5 times of nozzle (6) diameter. 3. The reaction device according to claim 1, characterized in that there can be one or more circulation pipes (4) and the injection pipes (11) connected thereto.

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