CN103084135A - Horizontal impinging stream reactor - Google Patents

Abstract

The invention discloses a horizontal impingement flow reactor, which comprises a reactor shell, a feed pipe, a discharge pipe, a draft tube, a pump and a circulation pipe, and the feed pipe and the discharge pipe are arranged on the reactor shell In terms of body, a pair of guide cylinders are arranged horizontally and coaxially and symmetrically in the reactor shell. The guide cylinders are used to guide the materials to be sucked by the pump respectively. zone, the outlets of which are respectively connected to the inlet of the pump through circulation pipes, and are characterized in that a pair of nozzles are coaxially and symmetrically arranged between the guide cylinders on the reactor shell along the direction vertical to the axial direction of the guide cylinders, and the nozzles The outlets of the outlets are arranged oppositely and separated by a second set distance to form a material-facing collision zone, and the inlets thereof communicate with the outlet of the pump through a circulation pipeline. It not only improves the efficiency of material mixing, but also enhances the stability and continuity of the reactor, and at the same time shortens the back-mixing time, and has a simple structure and good economic performance.

Description

A horizontal impingement flow reactor

technical field

The invention relates to a reactor in the field of chemical industry, in particular to a circulating impingement flow reactor used in a liquid phase reaction process.

Background technique

The impinging flow reactor is a new type of reactor used in the chemical industry. It uses two high-speed fluids to collide with each other to increase the heat transfer and mass transfer rate. It has been successfully used in chemical processes such as absorption, mixing, heat transfer and crystallization. . At present, most impinging flow reactors are equipped with a propeller structure in the guide tube or use a power source to accelerate the fluid and collide with each other. Although the reactor with the propeller structure can achieve the purpose of mixing and strengthening, the motor shaft installed with the propeller It is a cantilever structure, which can easily lead to instability and easy damage of the whole device, thus reducing the service life of the reactor. Using the power source, such as through the action of a pump, to give the material a certain initial velocity, so that the axial direction impacts each other to strengthen the mixing effect. , but because the inlet of the circulation pipe connected to the pump is located at the bottom of the reactor, the time for the material to mix back after impact mixing is too long, which affects the mixing efficiency.

Invention content

The technical problem to be solved by the present invention is to provide a horizontal impingement flow reactor, which not only maintains the high-efficiency mixing performance of the impingement flow reactor with propeller structure, but also enhances the stability and continuity of the reactor. It has a simple structure and reduces Low cost, easy operation and maintenance, while shortening the back-mixing time and improving production efficiency.

The technical scheme adopted by the present invention to solve the above-mentioned problems is: comprising a reactor shell, a feed pipe, a discharge pipe, a first flow guide cylinder, a second flow guide cylinder, a first pump, a second pump and a circulation The pipe, the feed pipe and the discharge pipe are arranged on the reactor shell, and the first guide tube and the second guide tube are arranged horizontally and coaxially symmetrically in the reactor shell, which is characterized in that: The first guide cylinder and the second guide cylinder are used to guide the material to be sucked by the first pump and the second pump respectively, and the inlets of the first guide cylinder and the second guide cylinder are arranged oppositely and separated by a first setting A certain distance is used to form a material suction area, and its outlets are respectively connected to the inlets of the first pump and the second pump through circulation pipes; The first nozzle and the second nozzle are arranged axially symmetrically. The outlets of the first nozzle and the second nozzle are arranged opposite to each other and separated by a second set distance to form a material impact area. The outlets of the two pumps are connected.

According to the above technical solution, the first guide tube and the second guide tube are located at the center of the reactor shell in the height direction, and the first nozzle and the second nozzle are located at the center of the reactor shell. Center position in the length direction.

According to the above technical solution, the material suction area and the material facing impact area overlap.

According to the above technical solution, multiple pairs of nozzles are arranged side by side between the first flow guide cylinder and the second flow guide cylinder on the reactor shell, and each pair of nozzles is coaxially opposed.

According to the above technical solution, the feed pipe is arranged at the upper end of the reactor shell.

According to the above technical solution, the discharge pipe is arranged at the lower end of the reactor shell.

According to the above technical solution, the shape of the reactor shell is cylindrical, and the reactor shell is placed horizontally.

The beneficial effect of the present invention is that: a pair of nozzles is arranged to form a material collision area, so that the materials are sprayed out of the nozzles and mixed, and the mixed materials are quickly entered into the circulation pipe again along the guide tube under the suction of the pump. Once again, the nozzles are sprayed against each other for mixing, and this cycle achieves the effect of mixing materials efficiently. It not only maintains the high-efficiency mixing performance of the impingement flow reactor with propeller structure, but also enhances the stability and continuity of the reactor. It has a simple structure, reduces costs, is easy to operate and maintain, and at the same time shortens the back-mixing time and improves production efficiency. Good economic performance.

In order to further shorten the back-mixing time, multiple pairs of nozzles are used to form multi-channel circulation pipelines through circulation pipelines, pumps and guide cylinders, which improves the mixing efficiency of materials.

Description of drawings

Fig. 1 is the structural representation of the embodiment that the present invention is provided with a pair of nozzles;

Fig. 2 is a structural schematic diagram of an embodiment of the present invention provided with two pairs of spray groups.

Among them, 1 feed pipe, 2 reactor shell, 3-1 first pump, 3-2 second pump, 4-1 first guide tube, 4-2 second guide tube, 5 nozzle, 5- 1 first nozzle, 5-2 second nozzle, 6 circulation pipe, 7 discharge pipe.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, the horizontal impinging flow reactor includes a reactor shell 2, a feed pipe 1, a discharge pipe 7, a first flow guide cylinder 4-1, a second flow guide cylinder 4-2, a first pump 5-1, the second pump 5-2 and the circulation pipeline 6. The shape of the reactor shell 2 is cylindrical and placed horizontally. The feed pipe 1 and the discharge pipe 7 are arranged on the reactor shell 2. The feed pipe 1 is arranged on the upper end of the reactor shell 2. A pipe 7 is provided at the lower end of the reactor shell 2 . In the reactor shell 2, a first flow guide cylinder 4-1 and a second flow guide cylinder 4-2 are arranged horizontally and coaxially symmetrically, and the first flow guide cylinder 4-1 and the second flow guide cylinder 4-2 are used to guide materials Suctioned by the first pump 3-1 and the second pump 3-2 respectively, the inlets of the first guide cylinder 4-1 and the second guide cylinder 4-2 are oppositely arranged and separated by a first set distance to form material In the suction area, its outlet is respectively connected to the inlet of the first pump 3-1 and the second pump 3-2 through the circulation pipe 6, and the reactor shell 2 is connected with the first guide tube 4-1 and the second guide tube 4-1. The first nozzle 5-1 and the second nozzle 5-2 are coaxially symmetrically arranged between the cylinders 4-2 along the direction perpendicular to the axial direction of the first guide cylinder 4-1 and the second guide cylinder 4-2, and the first nozzle 5-1 and the outlet of the second nozzle 5-2 are arranged opposite to each other and separated by a second set distance to form a material impact area, and its inlet passes through the circulation pipeline 6 and the first pump 3-1 and the second pump 3-2. The exit is connected. The material suction area and the material impact area coincide. The first guide cylinder and the second guide cylinder are located at the central position of the reactor shell in the height direction, and the first nozzle and the second nozzle are located at the central position of the reactor shell in the length direction .

As shown in Figure 2, the horizontal impingement flow reactor can also be placed on the reactor shell 2 between the first draft tube 4-1 and the second draft tube 4-2 along the vertical first draft tube 4- 1 and the second guide tube 4-2 are provided with two pairs of nozzles 5 side by side in the axial direction, each pair of nozzles is coaxially opposed, and the rest of the structure is the same as that shown in FIG. 1 . The quantity, size and position of nozzles 5 can be set according to production requirements.

The working process of the impinging flow reactor provided by the present invention is as follows: the material enters the reactor shell from the feed pipe, and under the suction of the pump, the material is guided by the guide tube and then sprayed out at a high speed by the nozzle through the circulation pipe and discharged at the nozzle. The materials formed at the outlet collide against the impact area to make the materials mix. The mixed materials quickly enter the circulation pipe along the guide tube under the suction of the pump, and are ejected from the nozzle at high speed again and collide with each other to make the materials mix. Circulation, and finally the material is fully mixed and discharged through the discharge pipe.

The impingement flow reactor provided by the present invention can carry out cyclical impingement, either batch operation or continuous operation.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present invention.

Claims (7)

1. horizontal impact flow reactor, comprise reactor shell, feed pipe, discharge duct, the first guide shell, the second guide shell, the first pump, the second pump and circulating line, described feed pipe and discharge duct are arranged on described reactor shell, in described reactor shell, horizontal coaxial-symmetrical arranges the first guide shell and the second guide shell, it is characterized in that: described the first guide shell and the second guide shell are used for directing material respectively by the first pump and the suction of the second pump, the entrance of described the first guide shell and the second guide shell is oppositely arranged and is separated with the first setpoint distance to form the material suction district, the outlet of the first guide shell and the second guide shell is connected by the entrance of circulating line with the first pump and the second pump respectively, on described reactor shell between the first guide shell and the second guide shell coaxial-symmetrical the first nozzle and second nozzle are set, the outlet of described the first nozzle and second nozzle is oppositely arranged and is separated with the second setpoint distance to form material impingement region in opposite directions, and the entrance of the first nozzle and second nozzle is connected with the first pump and the second delivery side of pump by circulating line.

2. horizontal impact flow reactor according to claim 1, it is characterized in that: described the first guide shell and the second guide shell are positioned at the middle position of the short transverse of described reactor shell, and described the first nozzle and second nozzle are positioned at the middle position of the length direction on described reactor shell.

3. horizontal impact flow reactor according to claim 1, it is characterized in that: described material suction district and material impingement region in opposite directions coincide.

4. horizontal impact flow reactor according to claim 1 is characterized in that: be arranged side by side manyly to nozzle on described reactor shell between the first guide shell and the second guide shell, described every pair of nozzle is coaxial opposed.

5. horizontal impact flow reactor according to claim 1, it is characterized in that: described feed pipe is arranged on the upper end of reactor shell.

6. horizontal impact flow reactor according to claim 1, it is characterized in that: described discharge duct is arranged on the lower end of reactor shell.

7. horizontal impact flow reactor according to claim 1 is characterized in that: described reactor shell be shaped as cylindrical shape, described reactor shell horizontal positioned.

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