阅读说明：本技术 一种多进料上流式反应器 (Multi-feeding upflow reactor ) 是由 陈兆然 马骏 王重平 于 2019-01-16 设计创作，主要内容包括：本发明涉及一种多进料上流式反应器,具体地,所述多进料上流式反应器的外壳为金属筒体,该金属筒体内包括：进口管(1)、下锥体段(2)、扩径管(3)、扰流体(4)、扰流体固定件(5)、流体均布通道(6)、下部进料器(7)、中部进料器(8)、上部进料器(9)、上锥体段(10)及出口管(11)。该反应器通过特殊的扰流结构、均布通道以及与进料器的巧妙配合,实现了多进料流体内物质的充分返混接触,提高了流体内物质的传质传热效率,提高了反应转化率。(The invention relates to a multi-feed upflow reactor, in particular to a shell of the multi-feed upflow reactor which is a metal cylinder, and the metal cylinder comprises: the device comprises an inlet pipe (1), a lower cone section (2), an expanding pipe (3), a turbulent flow body (4), a turbulent flow body fixing piece (5), a uniform flow channel (6), a lower feeder (7), a middle feeder (8), an upper feeder (9), an upper cone section (10) and an outlet pipe (11). The reactor realizes the sufficient back-mixing contact of substances in the multi-feed fluid through the special turbulent flow structure, the uniformly distributed channels and the ingenious matching with the feeder, improves the mass and heat transfer efficiency of the substances in the fluid, and improves the reaction conversion rate.)

1. A multi-feed upflow reactor, characterized in that the housing of the multi-feed upflow reactor is a metal cylinder comprising: the device comprises an inlet pipe (1), a lower cone section (2), an expanding pipe (3), a turbulent flow body (4), a turbulent flow body fixing piece (5), a uniform flow channel (6), a lower feeder (7), a middle feeder (8), an upper feeder (9), an upper cone section (10) and an outlet pipe (11);

the lower end of the lower cone section (2) is connected with the upper end of the inlet pipe (1), and the upper end of the lower cone section (2) is connected with the lower end of the expanding pipe (3); the lower end of the upper cone section (10) is connected with the upper end of the expanding pipe (3), and the upper end of the upper cone section (10) is connected with the lower end of the outlet pipe (11); the middle part and the upper part of the expanding pipe (3) are provided with a middle feeder (8) and an upper feeder (9);

the upper part of the fluid disturbing body (4) is provided with a fluid disturbing body fixing piece (5); fixing the turbulent flow body (4) at the central position of the lower cone section (2); the upper part and the lower part of the fluid disturbing body (4) are formed by combining an upper cone and a lower cone; wherein, the upper cone is a right cone, and the lower cone is a reverse cone; the bottom surfaces of the upper cone and the lower cone are superposed; the upper part of the upper cone is pointed; the lower part of the lower cone is a circular bulge;

the inlet pipe, the lower cone section, the expanding pipe, the turbulent flow body fixing piece, the fluid uniform distribution channel, the upper cone section and the outlet pipe are all lined with a heat-insulating wear-resistant lining A on the metal cylinder;

the fluid uniform distribution channel (6) is formed by attaching a lining of a lower mesh cone of the turbulent fluid and a groove arranged in the lining of the lower cone section, and the fluid uniform distribution channel is uniformly distributed along the axis of the reactor;

the outlet of the fluid uniform distribution channel (6) on the lower cone section (2) is provided with a lower feeder (7).

2. The multi-feed upflow reactor as in claim 1, in which the angle x of the conical structure of the upper cone is in the range of 30 to 170 degrees; and/or the angle y of the conical structure of the lower cone is 30-170 degrees.

3. The multi-feed upflow reactor of claim 1, in which the number of fluid-disrupting fasteners is from 2 to 20.

4. The multi-feed upflow reactor of claim 1, wherein the thermally insulating, abrasion resistant liner has a thickness of 40 to 300 mm.

5. The multi-feed upflow reactor of claim 1, in which the number of said flow equalization channels is from 2 to 15; and the total volume of the fluid uniform distribution channels is not more than that of the inlet pipe.

6. The multi-feed upflow reactor of claim 1, in which the number of lower feeders is from 2 to 15; and/or the injection angle z of the lower feeder is 90-170 degrees.

7. The multi-feed upflow reactor of claim 1, in which the number of middle feeders is from 0 to 4; and/or the number of the upper feeders is 0-4.

8. A multi-feed upflow reactor as in claim 1, in which the upper cone section connects to the outlet tube at an angle w in the range of 20 to 150 degrees.

9. The multi-feed upflow reactor of claim 1, wherein the lower feeder is a liquid atomizing nozzle; and/or the outlet of the middle feeder adopts an inverted V-shaped structure; and/or the outlet of the upper feeder adopts a fan-shaped liquid distribution structure.

10. A multi-feed upflow reactor system, comprising a plurality of multi-feed upflow reactors of any of claims 1-9 in series.

Technical Field

The invention belongs to the technical field of reaction equipment, and particularly relates to a multi-feed upflow reactor.

Background

The chemical reaction process is the core and key of the chemical production, and for the rapid reaction process needing sufficient mass and heat transfer, how to efficiently strengthen the mass and heat transfer of the rapid reaction process is the goal of the reactor to be realized. At present, in many upflow reactors, because the fluid basically passes through the reaction zone in a semi-plug flow mode, the back mixing effect is poor, the mass and heat transfer efficiency of the reactor is low, and the efficiency of the reaction is finally influenced. Therefore, there is a need in the art to provide an upflow reactor with good back-mixing.

Disclosure of Invention

The invention aims to provide a multi-feed upflow reactor which can enhance the back mixing effect to improve the mass and heat transfer efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

there is provided a multi-feed upflow reactor, the housing of which is a metal cylinder and which includes therein: the device comprises an inlet pipe 1, a lower cone section 2, an expanding pipe 3, a turbolator 4, a turbolator fixing piece 5, a fluid uniform distribution channel 6, a lower feeder 7, a middle feeder 8, an upper feeder 9, an upper cone section 10 and an outlet pipe 11;

wherein, the lower end of the lower cone section 2 is connected with the upper end of the inlet pipe 1, and the upper end of the lower cone section 2 is connected with the lower end of the expanding pipe 3; the lower end of the upper cone section 10 is connected with the upper end of the expanding pipe 3, and the upper end of the upper cone section 10 is connected with the lower end of the outlet pipe 11; the middle part and the upper part of the expanding pipe 3 are provided with a middle feeder 8 and an upper feeder 9;

the upper part of the fluid disturbing body 4 is provided with a fluid disturbing body fixing part 5; the spoiler fixing piece 5 fixes the spoiler 4 at the central position of the lower cone section 2; the fluid disturbing body 4 is formed by combining an upper cone structure and a lower cone structure; wherein, the upper cone is a right cone, and the lower cone is an inverted net cone; the bottom surfaces of the upper cone and the lower cone are superposed; the upper part of the upper cone is pointed; the lower part of the lower cone is a circular bulge;

the inlet pipe, the lower cone section, the expanding pipe, the turbulent flow body fixing piece, the fluid uniform distribution channel, the upper cone section and the outlet pipe are all lined with a heat-insulating wear-resistant lining A on the metal cylinder;

the fluid uniform distribution channel 6 is formed by jointing the lining of the lower cone of the turbulent fluid and a groove arranged in the lining of the lower cone section, and the fluid uniform distribution channel is uniformly distributed along the axis of the reactor;

a lower feeder 7 is arranged on the lower cone section 2 at the outlet of the flow equalization channel 6.

Preferably, the outer circumference of the lower cone is adjacent to the lower cone section, so as to run the flow equalization channel 6.

Preferably, the angle x of the conical structure of the upper cone is 30-170 degrees; and/or the angle y of the conical structure of the lower cone is 30-170 degrees.

Preferably, the number of the fluid disturbing fixing pieces 5 is 2-20.

Preferably, the spoiler fastener 5 is provided on an upper cone of the spoiler 4.

Preferably, the fluid disturbing fixtures 5 are evenly distributed along the axial center of the reactor.

Preferably, the thickness of the heat-insulating wear-resistant lining is 40-300 mm.

Preferably, the number of the fluid uniform distribution channels is 2-15; and the total area of the fluid uniform distribution channels is not more than the area of the inlet pipe.

Preferably, the number of the lower feeders is 2-15; and/or the injection angle z of the lower feeder is 90-170 degrees.

Preferably, the number of the middle feeders is 0-4; and/or the number of the upper feeders is 0-4.

Preferably, the angle w formed by connecting the upper cone section and the outlet pipe is 20-150 degrees.

Preferably, the lower feeder is a liquid atomizing nozzle; and/or the outlet of the middle feeder adopts an inverted V-shaped structure; and/or the outlet of the upper feeder adopts a fan-shaped liquid distribution structure.

Also provided is a multi-feed upflow reactor system comprising a plurality of the above-described multi-feed upflow reactors in series.

Preferably, the plurality is 1, 2, 3, 4, 5, 6 or more.

Preferably, in the multi-feed upflow reactor system, the outlet pipe of the previous reactor is connected to the inlet pipe of the subsequent reactor.

The reactor of the invention has the following beneficial effects:

(1) the reactor realizes the full back-mixing contact of substances in the multi-feed fluid through the special turbulent flow structure, the uniformly distributed channels and the ingenious matching with the feeder, improves the mass and heat transfer efficiency of the substances in the fluid, and improves the reaction conversion rate.

(2) The reactor of the invention has good back mixing effect but low pressure drop, and is beneficial to reducing the energy consumption of operation.

(3) The reactor of the invention has no moving parts, simple structure, easy processing and manufacture and convenient maintenance in the using process.

(4) The reactor of the invention can realize the use of a plurality of reactors in series, thereby further improving the mass and heat transfer efficiency of substances in the fluid, and being particularly suitable for series reaction.

Drawings

FIG. 1 is a schematic view of the structure of example 1 of the reactor of the present invention.

FIG. 2 is a schematic top view of the spoiler of FIG. 1.

Figure 3 is a schematic perspective view from above of the flow distribution channel of figure 1.

Detailed Description

The invention is further elucidated with reference to the drawing. The detailed description and examples do not limit the scope of the invention as claimed.

Referring to fig. 1, the housing of the multi-feed upflow reactor of the present invention is a metal cylinder and includes within the metal cylinder: an inlet pipe 1, a lower cone section 2, an expanding pipe 3, a turbolator 4, a turbolator fixing piece 5, a fluid uniform distribution channel 6, a lower feeder 7, a middle feeder 8, an upper feeder 9, an upper cone section 10 and an outlet pipe 11.

The lower end of the lower cone section 2 is connected with the upper end of the inlet pipe 1, the upper end of the lower cone section 2 is connected with the lower end of the expanding pipe 3, the turbulent flow body 4 is positioned at the central position of the lower cone section, the upper part of the turbulent flow body 4 is provided with a turbulent flow fixing piece 5, the lower end of the upper cone section 10 is connected with the upper end of the expanding pipe 3, the upper end of the upper cone section 10 is connected with the lower end of the outlet pipe 11, and the middle part and the upper part of the.

The inlet pipe, the lower cone section, the expanding pipe, the turbulent flow body fixing part, the fluid uniform distribution channel, the upper cone section and the outlet pipe are all lined with a heat-insulating wear-resistant lining A on the metal cylinder body so as to reduce the heat dissipation of the reactor and the abrasion of equipment. The thickness of the heat-insulating wear-resistant lining is 40-300 mm, and preferably 80-150 mm.

The fluid disturbing body is formed by combining an upper cone structure and a lower cone structure; wherein, the bottom surfaces of the upper cone and the lower cone are superposed; the upper cone is a right cone; the lower cone is an inverted cone; the upper part of the upper cone is pointed; the lower part of the lower cone is a circular bulge. The angle x of the conical structure of the upper cone is 30-170 degrees, and preferably 80-120 degrees. The angle y of the conical structure of the lower cone is 30-170 degrees, and preferably 60-110 degrees. The number of the spoiler fasteners arranged on the upper portion of the spoiler is 2-20, preferably 4-12. The circular convex part at the lower part of the disturbing fluid breaks up the ascending fluid from the inlet pipe and then uniformly distributes the ascending fluid into the fluid uniform distribution channel, and the ascending fluid forms a back mixing area near the circular convex part, so that the mass and heat transfer of the substances in the inlet fluid are improved.

The turbulent fluid is a wear-resistant lining lined on the surface of a metal material. The spoiler fixing piece is a metal material surface lining wear-resistant lining.

The uniform fluid distribution channels are formed by attaching the lining of the lower cone of the turbolator and grooves arranged in the lining of the lower cone section, the uniform fluid distribution channels are uniformly distributed along the axis of the reactor, and the number of the uniform fluid distribution channels is 2-15. The total area of the fluid uniform distribution channels is not more than the area of the inlet pipe. The rising fluid from the inlet pipe is uniformly distributed into the fluid uniform distribution channels through the deflecting action of the disturbing fluid, and because the channels present a certain vertical inclination angle, the fluid is accelerated in the channels, and the back mixing in the fluid is further enhanced.

And a lower feeder is arranged at the outlet of the fluid uniform distribution channel on the lower cone section. The number of the lower feeders is 2-15. The spraying angle z of the lower feeder is 90-170 degrees, preferably 130-160 degrees. The fluid from the lower feeder is crossed with the fluid after passing through the fluid uniform distribution channel, so that the two fluids are in strong contact mixing, the two mixed fluids are sprayed into the lower layer space of the expanding pipe at a certain angle, the flow velocity of the fluid is reduced after expanding, and the upper cone structure of the turbulent fluid enables the lower layer space of the expanding pipe to form a sufficient back mixing area of the fluid, so that the contact of substances in the fluid is more uniform, the mass and heat transfer efficiency of the substances in the fluid is improved, and the reaction conversion rate is improved.

The middle part of the expanding pipe is provided with a middle feeder, and the number of the middle feeders is 0-4. The upper part of the expanding pipe is provided with 0-4 upper feeders. The middle feeder and the upper feeder can realize the countercurrent contact of the solid or liquid outside the feeder and the ascending fluid of the expanding pipe through the distribution structure arranged on the feeders, thereby achieving the full mixing of the feeding material in the middle or the upper part and the ascending fluid and improving the mass and heat transfer efficiency of the substances in the fluid.

The angle w formed by connecting the upper cone section and the outlet pipe is 20-150 degrees, preferably 40-100 degrees. The fluid after passing through the expanding tube enters the upper centrum section, and the fluid is back-mixed again because the gradually reduced diameter fluid is gathered and accelerated, thereby further improving the mass and heat transfer efficiency of the substances in the fluid.

The multi-feed upflow reactor of the present invention may be used in a plurality (two or more) of reactors in series. For example, two reactors in series, the outlet 11 of the first reactor and the inlet 1 of the second reactor can be connected (e.g., sealed) to achieve more feed and further improve fluid mixing. Similarly, a series connection of more than two (e.g., three, four, five, etc.) reactors can be achieved in such an outlet and inlet tube connection. The reactors can be connected in series to realize independent temperature and pressure control of each reactor, which is beneficial to improving the mass and heat transfer efficiency and the reaction conversion rate, and is especially suitable for cascade reaction. In series, the outlet of one reactor is connected to the inlet of the adjacent reactor.