CN220780359U

CN220780359U - Ceramic high-temperature high-pressure corrosion-resistant tubular reactor

Info

Publication number: CN220780359U
Application number: CN202322565007.5U
Authority: CN
Inventors: 李钰龙; 刘凯
Original assignee: Shandong Special Innovation Material Technology Co ltd
Current assignee: Shandong Special Innovation Material Technology Co ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-04-16
Anticipated expiration: 2033-09-21

Abstract

The utility model aims to solve the technical problem of providing a ceramic high-temperature high-pressure corrosion-resistant tubular reactor, which comprises a reactor body, wherein the reactor body is a special ceramic column, a plurality of vertically distributed reaction channels are arranged in the reactor body, the head ends and the tail ends of all the reaction channels are sequentially connected in series, the top end of the reactor body is provided with a feed pipe communicated with the reaction channels, and the bottom end of the reactor body is provided with a discharge pipe communicated with the reaction channels; the outside of reactor body is equipped with the intermediate layer chamber, one side in intermediate layer chamber is equipped with medium inlet pipe, the opposite side is equipped with the medium outlet pipe, guarantees liquid reaction, heat exchange efficiency, does not have the use of metal joint and sealing washer, reduces the leak point, reduces the leak rate, reduces use cost, and has good high temperature resistant corrosion resisting property.

Description

Ceramic high-temperature high-pressure corrosion-resistant tubular reactor

Technical Field

The utility model relates to the field of chemical and nuclear engineering equipment, in particular to special equipment for reacting and exchanging heat of high-temperature (100-800 ℃), high-pressure (10-50 MPa), strong-corrosion and strong-radiation materials, and specifically relates to a ceramic high-temperature high-pressure corrosion-resistant tubular reactor.

Background

In the special fields of chemistry, nuclear energy and the like, the most common operation is to carry out mixed reaction on various corrosive materials, the common equipment is a metal tubular reactor, and various liquids enter a reaction channel to be matched with an interlayer sleeve and then are introduced into heat conduction oil for reaction. In order to ensure the reaction effect, a plurality of tubular reactors are required to be connected in series.

However, the reaction channels often need to be sealed and connected by matching with a sealing ring, then when the reaction liquid is strong corrosive liquid such as concentrated sulfuric acid, concentrated nitric acid and the like at a high temperature of 300 ℃, the joint of the reaction channels and the sealing ring are easy to corrode, and need to be replaced regularly, and particularly the sealing ring is generally made of expensive fluororubber or perfluoro ether sealing ring, which clearly increases the use cost.

In the field of strong nuclear energy radiation, the commonly used titanium alloy heat exchanger has the disadvantages of high manufacturing cost, long replacement period, easy generation, radiation pollution and the like, so that a ceramic reactor and a heat exchanger which are made of ceramic materials, have high heat conductivity coefficients, are corrosion-resistant and radiation-resistant and have specific performances are urgently needed in the special field.

Disclosure of utility model

The utility model aims to solve the technical problems of providing a ceramic high-temperature high-pressure internal corrosion tubular reactor, wherein a plurality of reaction channels are arranged in a special ceramic column, and the head ends and the tail ends of the reaction channels are sequentially connected in series, so that the liquid reaction and heat exchange efficiency is ensured, no metal joint or sealing ring is used, the leakage point is reduced, the leakage rate is reduced, the use cost is reduced, and the ceramic high-temperature corrosion resistance is good.

The utility model is realized by the following technical scheme:

The ceramic high-temperature high-pressure corrosion-resistant tubular reactor comprises a reactor body, wherein the reactor body is a special ceramic column, a plurality of vertically distributed reaction channels are arranged in the reactor body, the head ends and the tail ends of all the reaction channels are sequentially connected in series, the top end of the reactor body is provided with a feed pipe communicated with the reaction channels, and the bottom end of the reactor body is provided with a discharge pipe communicated with the reaction channels;

The outside of reactor body is equipped with the intermediate layer chamber, one side of intermediate layer chamber is equipped with medium inlet tube, the opposite side is equipped with the medium outlet tube.

Furthermore, the top and the bottom of the reactor body are respectively provided with a special ceramic seal head in a matched mode, the inner side face of the special ceramic seal head is provided with a plurality of communicating grooves, and the communicating grooves can be communicated with the end parts of the adjacent reaction channels.

Further, the reaction channels are distributed in a plurality of rows, a plurality of medium channels are arranged in the area between the adjacent rows of reaction channels along the height direction, and the medium channels transversely penetrate through the reactor body.

Furthermore, the outside of special ceramic head still is equipped with the metal head, the top end both ends outside of reactor body all is provided with the flange, the metal head leads to a plurality of bolts and carries out fixed connection with corresponding flange.

Further, the reaction channels are distributed in 3-5 rows.

Furthermore, the reactor body is made of special ceramic materials with high temperature resistance and corrosion resistance.

Compared with the prior art, the utility model has the following beneficial effects:

1. The special ceramic column is internally provided with a plurality of reaction channels, and the head ends and the tail ends of the reaction channels are sequentially connected in series, so that the liquid reaction efficiency is ensured, the use of a metal joint and a sealing ring is reduced, the use cost is reduced, and the ceramic column has good high-temperature resistance and corrosion resistance;

2. the top end and the bottom end of the reactor body are matched and provided with special ceramic sealing heads, the inner side surfaces of the special ceramic sealing heads are provided with a plurality of communicating grooves, and the communicating grooves can be adjacent to the ends of the reaction channels, so that the serial connection of the reaction channels is realized, the traditional mode of using a metal structure to match with a sealing ring is replaced, and the maintenance cost is greatly reduced;

3. the metal seal head is fixedly connected with the corresponding flange through a plurality of bolts, so that the special ceramic seal head is tightly matched with the end part of the reactor body, the tightness is ensured, and the installation is convenient;

4. The area between the reaction channels of adjacent rows is provided with a plurality of medium channels along the height direction, so that the heat conduction oil can pass through each medium channel, thereby heating the liquid in the reaction channels and improving the reaction efficiency.

Drawings

FIG. 1 is a schematic view of the ceramic high temperature high pressure corrosion resistant tubular reactor of the present utility model;

FIG. 2 is a schematic view of a reactor body according to the present utility model;

FIG. 3 is a cross-sectional view of a tubular reactor according to the present utility model;

FIG. 4 is a schematic view of a special ceramic seal head according to the present utility model;

in the figure: 1. the reactor comprises a reactor body, 2, special ceramic seal heads, 3, a communication groove, 4, a reaction channel, 5, a feed pipe, 6, a discharge pipe, 7, a metal seal head, 8, a sandwich cavity, 9, a flange, 10, a medium channel, 11, a medium inlet pipe, 12 and a medium outlet pipe.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the utility model, it should be understood that the terms "front," "rear," "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

As shown in fig. 1-4, the embodiment discloses a ceramic high-temperature high-pressure corrosion-resistant tubular reactor, which comprises a reactor body 1, two special ceramic sealing heads 2 and two metal sealing heads 7, wherein the reactor body 1 is a special ceramic column, and the reactor body 1 and the special ceramic sealing heads 2 are made of conventional high-temperature-resistant corrosion-resistant special ceramic materials, including but not limited to alumina ceramic, silicon carbide ceramic, kiln stone ceramic, boron nitride ceramic and the like.

A plurality of vertically distributed reaction channels 4 are processed in the reactor body 1, the reaction channels 4 are distributed in a plurality of rows, the top end and the bottom end of the reactor body 1 are matched and assembled with special ceramic sealing heads 2, a plurality of communication grooves 3 are processed on the inner side surface of the special ceramic sealing heads 2, and the communication grooves 3 can be adjacent to the ends of the reaction channels 4, so that the head ends and the tail ends of all the reaction channels 4 are sequentially connected in series. The outer side face of the special ceramic seal head 2 positioned at the top end of the reactor body 1 is provided with a feed pipe 5 communicated with the reaction channel 4, the outer side face of the special ceramic seal head 2 positioned at the bottom end of the reactor body 1 is provided with a discharge pipe 6 communicated with the reaction channel 4, and the design is such that materials can enter the reactor body 1 from the feed pipe 5 and sequentially pass through each reaction channel 4 and are finally discharged from the discharge pipe 6.

Because special ceramic seal head 2 and reactor body 1 are all made of special ceramic material, do not need the sealing washer to seal after its contact surface smooth laminating, in order to guarantee to cooperate closely between special ceramic seal head 2 and the reactor body 1, still dispose metal seal head 7 in the outside of special ceramic seal head 2, all be provided with flange 9 in the outside of the both ends of the top and bottom of reactor body 1, metal seal head 7 carries out fastening connection with corresponding flange through a plurality of bolts.

The outside of the reactor body 1 is also provided with an interlayer cavity 8, one side of the interlayer cavity 8 is provided with a medium inlet pipe 11, the other side is provided with a medium outlet pipe 12, and in order to facilitate the full heat exchange of the heat conducting medium, a plurality of medium channels 10 are processed in the area between the adjacent rows of reaction channels 4 along the height direction, and each medium channel 10 transversely penetrates through the reactor body 1.

The utility model can be used as a chemical raw material reactor in the chemical industry field and a heat exchanger in the nuclear energy engineering field due to good high temperature resistance, high pressure resistance and corrosion resistance.

The specific working process of the tubular reactor is as follows:

And a heat conduction oil medium is introduced into the medium inlet pipe, and is discharged from the medium outlet pipe through each medium channel after entering the interlayer cavity, so that the temperature of the reactor body is raised, liquid materials enter from the feeding pipe and are discharged from the discharging pipe after sequentially passing through each reaction channel. The utility model ensures the liquid reaction efficiency, reduces the use of the metal joint and the sealing ring, reduces the use cost, and has good high-temperature resistance and corrosion resistance.

Claims

1. The ceramic high-temperature high-pressure corrosion-resistant tubular reactor comprises a reactor body, and is characterized in that the reactor body is a special ceramic column, a plurality of vertically distributed reaction channels are arranged in the reactor body, the head ends and the tail ends of all the reaction channels are sequentially connected in series, a feed pipe communicated with the reaction channels is arranged at the top end of the reactor body, and a discharge pipe communicated with the reaction channels is arranged at the bottom end of the reactor body;

2. The tubular reactor according to claim 1, wherein the top end and the bottom end of the reactor body are provided with special ceramic sealing heads in a matched manner, the inner side surfaces of the special ceramic sealing heads are provided with a plurality of communicating grooves, and the communicating grooves can be communicated with the end parts of the adjacent reaction channels.

3. A tubular reactor according to claim 2, wherein a plurality of reaction channels are distributed in a plurality of rows, and the regions between adjacent rows of reaction channels are provided with a plurality of medium channels in the height direction, said medium channels extending transversely through the reactor body.

4. The tubular reactor of claim 2, wherein a metal seal head is further arranged on the outer side of the special ceramic seal head, flanges are arranged on the outer sides of two ends of the top and bottom of the reactor body, and the metal seal head is fixedly connected with the corresponding flanges through a plurality of bolts.

5. A tubular reactor according to claim 3, wherein the plurality of reaction channels are distributed in 3-5 rows.

6. A tubular reactor according to any one of claims 1 to 5, wherein the reactor body is of a high temperature and corrosion resistant special ceramic material.