CN214553389U

CN214553389U - Distributor and gas-liquid phase tubular reactor

Info

Publication number: CN214553389U
Application number: CN202120081616.1U
Authority: CN
Inventors: 戴哲彦; 丁振华; 崔翔
Original assignee: Nanjing Zhongshe Petrochemical Engineering Co ltd
Current assignee: Nanjing Zhongshe Petrochemical Engineering Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-11-02
Anticipated expiration: 2031-01-12

Abstract

The utility model relates to a distributor and gas-liquid phase tubular reactor, distributor include the distributor cavity, are connected with the feed liquor pipe that stretches into the distributor cavity in the upper end of distributor cavity, still are provided with a plurality of intake pipes on the distributor cavity, and the intake pipe link up the up and down terminal surface of distributor cavity, still are provided with a plurality of liquid outlets at the lower extreme of distributor cavity, are provided with the drain pipe on the liquid outlet. This application is sent into liquid in the distributor cavity through the feed liquor pipe, and fall into a plurality of parts with liquid through the distributor cavity, and go out liquid through a plurality of drain pipes, link up the upper and lower terminal surface of distributor cavity through the intake pipe simultaneously, gaseous entering from the intake pipe upper end, discharge from the intake pipe lower extreme, just so make gaseous can and the abundant contact of liquid that each drain pipe flows, the contact surface of gas with liquid has been increased, thereby the sufficiency and the homogeneity of the mixture of gas-liquid have been improved.

Description

Distributor and gas-liquid phase tubular reactor

Technical Field

The application relates to the technical field of petrochemical industry, in particular to a distributor and a gas-liquid phase tubular reactor.

Background

The gas-liquid phase tubular reactor is mainly used for realizing gas-solid phase catalytic reaction, and the working principle of the gas-liquid phase tubular reactor is that after liquid and gas are introduced into an inlet of the reactor, the reaction is carried out through solid catalysis inside the reactor, and the discharging is carried out through a discharging hole after the reaction.

At present, gas and liquid phase tubular reactors mainly feed gas and liquid into a feeding cavity for mixing, and then feed the gas and liquid into solid catalysis inside the reactor for reaction after mixing in the feeding cavity.

In view of the above related technologies, the inventor believes that in the process of mixing gas and liquid in a reactor in the related technologies, the mixing is not sufficient and uniform, which results in low reaction efficiency and affects production efficiency when the gas and liquid are subsequently reacted with a solid catalyst.

Disclosure of Invention

In order to improve sufficiency and homogeneity of the gas-liquid mixture of feeding, this application provides a distributor and gas-liquid phase tubular reactor.

In a first aspect, the method employed by the present application is: the utility model provides a distributor, includes the distributor cavity the upper end of distributor cavity be connected with the feed liquor pipe that stretches into the distributor cavity on still be provided with a plurality of intake pipes, the intake pipe link up the upper and lower terminal surface of distributor cavity the lower extreme of distributor cavity still be provided with a plurality of liquid outlets, be provided with the drain pipe on the liquid outlet.

Through adopting above-mentioned technical scheme, the feed liquor pipe is sent into liquid in the distributor cavity, and divide into a plurality of parts with liquid through the distributor cavity, and go out liquid through a plurality of drain pipes, link up the upper and lower terminal surface of distributor cavity through the intake pipe simultaneously, gaseous entering from the intake pipe upper end, discharge from the intake pipe lower extreme, just so make gaseous can with the abundant contact of the liquid that each drain pipe flows out, the contact surface of gas with liquid has been increased, thereby the sufficiency and the homogeneity of the mixture of gas-liquid have been improved.

Optionally, the liquid inlet pipe is arranged at the central position of the distributor cavity, the liquid inlet pipe extends into the bottom of the inner part of the distributor cavity for plugging, and the side wall of the liquid inlet pipe is provided with a plurality of liquid outlets.

Through adopting above-mentioned technical scheme, through establishing a plurality of liquid outlets on the lateral wall at feed liquor pipe, liquid in the feed liquor pipe will spray liquid to feed liquor pipe through the liquid outlet all around like this, can guarantee like this that liquid can spray to the distributor cavity from the center of distributor cavity all around to avoided liquid to concentrate and flowed out on the drain pipe at distributor cavity bottom center, thereby enlarged the scope that liquid flowed out, provided convenience for the gas-liquid intensive mixing.

In a second aspect, the application also discloses a gas-liquid phase tubular reactor, including feeding chamber, shell side and ejection of compact chamber, feeding chamber and ejection of compact chamber be connected with the shell side respectively, be provided with tube sheet and lower tube sheet in the shell side, be provided with a plurality of reaction tubes between tube sheet and lower tube sheet last tube sheet be provided with the catalyst in the reaction tube, be provided with the feed inlet on the feeding chamber, be provided with the discharge gate on ejection of compact chamber the feeding intracavity be provided with the distributor, the above-mentioned distributor of any one structure of distributor, the feed inlet include liquid inlet and gas inlet, the one end of feed inlet pipe with liquid inlet connect.

By adopting the technical scheme, liquid flows in from a liquid inlet on the feeding cavity, flows out through the liquid inlet pipe and the distributor and flows out to the area between the distributor and the upper pipe plate, and gas enters the feeding cavity through the gas inlet, passes through the distributor through the gas inlet pipe and flows out to the area between the distributor and the upper pipe plate; gas and liquid get into in the reaction tube after the regional intensive mixing between distributor and the last tube sheet, through catalyst reaction back, through the ejection of compact of ejection of compact chamber, whole in-process, gas and liquid can mix fully, can improve the efficiency of reaction.

Optionally, the distributor is connected to the upper tube plate by distance tubes.

Through adopting above-mentioned technical scheme, the distributor passes through the distance pipe and is connected with the last tube sheet, and the distance of distributor and last tube sheet can be adjusted to the length through adjusting the distance pipe.

Optionally, a heat exchange liquid inlet and a heat exchange liquid outlet are further arranged on the shell pass.

By adopting the technical scheme, the heat exchange liquid flows into the shell pass from the heat exchange liquid inlet, exchanges heat through the shell pass, and flows out through the heat exchange liquid outlet.

Optionally, a baffle plate is arranged in the shell side.

By adopting the technical scheme, the heat exchange liquid flows into the heat exchange liquid outlet from the heat exchange liquid inlet through the plurality of layers of baffle plates, so that the stroke of the heat exchange liquid can be increased, and the heat exchange efficiency is improved.

Optionally, the feeding cavity is connected with the shell side by a flange; the discharging cavity is connected with the shell pass through a flange.

By adopting the technical scheme, the feeding cavity is connected with the shell side by the flange, and the discharging cavity is connected with the shell side by the flange, so that the feeding cavity and the discharging cavity are firmly connected with the shell side.

Optionally, the discharging cavity is further provided with a pressure pipe orifice, and the pressure pipe orifice is provided with a pressure gauge.

Through adopting above-mentioned technical scheme, through set up the pressure mouth of pipe on ejection of compact chamber to set up the manometer on the pressure mouth of pipe, can the pressure value in the real-time measurement ejection of compact intracavity.

In summary, the present application includes at least one of the following beneficial technical effects:

1. liquid is sent into the distributor cavity through the liquid inlet pipe, the liquid is divided into a plurality of parts through the distributor cavity, liquid is discharged through the liquid outlet pipes, meanwhile, the gas inlet pipe penetrates through the upper end face and the lower end face of the distributor cavity, gas enters from the upper end of the gas inlet pipe and is discharged from the lower end of the gas inlet pipe, so that the gas can be fully contacted with the liquid flowing out of each liquid outlet pipe, the contact surface of the gas and the liquid is increased, and the mixing sufficiency and uniformity of the gas and the liquid are improved;

2. the liquid distributor has the advantages that the liquid outlets are formed in the side wall of the liquid inlet pipe, so that liquid in the liquid inlet pipe can be sprayed to the periphery of the liquid inlet pipe through the liquid outlets, the liquid can be sprayed to the periphery of the distributor cavity from the center of the distributor cavity, the liquid is prevented from flowing out of the liquid outlet pipe in the center of the bottom of the distributor cavity in a concentrated mode, the liquid flowing-out range is enlarged, and convenience is brought to full mixing of gas and liquid;

3. this application sets up the baffling board in the shell side, and heat-transfer liquid flows in the heat-transfer liquid export from the heat-transfer liquid import through multilayer baffling board, can increase the stroke of heat-transfer liquid like this to improve the efficiency of heat transfer.

Drawings

Fig. 1 is a schematic diagram of a distributor structure in an embodiment of the present application.

Fig. 2 is a cross-sectional view taken along line B-B of fig. 1 of the present application.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 1 of the present application.

FIG. 4 is a schematic diagram of a gas-liquid phase tubular reactor in an embodiment of the present application.

Reference number legend, 1, distributor; 2. a feed cavity; 3. shell pass; 4. a discharge cavity; 5. an upper tube sheet; 6. a lower tube plate; 7. a reaction tube; 8. a liquid inlet; 9. a gas inlet; 10. a distance tube; 11. a heat exchange liquid inlet; 12. a heat exchange liquid outlet; 13. a baffle plate; 14. a flange; 15. a pressure pipe orifice; 101. a distributor cavity; 102. a liquid inlet pipe; 103. an air inlet pipe; 104. a liquid outlet; 105. a liquid outlet pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Referring to fig. 1 and fig. 2, the embodiment of the present application discloses a distributor, including distributor cavity 101, distributor cavity 101 is a hollow cylindrical structure, a liquid inlet pipe 102 is provided at the central point of the upper end surface of distributor cavity 101, liquid inlet pipe 102 stretches into distributor cavity 101, and liquid inlet pipe 102 stretches into the bottom shutoff of the inside part of distributor cavity 101, the lateral wall is provided with a plurality of liquid outlets 104, be provided with 4 liquid outlets 104 in this embodiment, 4 liquid outlets 104 are even on the lateral wall of liquid inlet pipe 102, so that liquid enters distributor cavity 101 through liquid inlet pipe 102, spray liquid to distributor cavity 101 all around from the center of distributor cavity 101 through 4 liquid outlets 104 on the lateral wall of liquid inlet pipe 102.

A plurality of openings are formed on the lower end surface of the distributor chamber 101, and a liquid outlet pipe 105 is formed on the openings, so that the liquid flowing into the distributor chamber 101 from the liquid inlet pipe 102 flows out through the liquid outlet pipe 105.

Referring to fig. 2 and 3, a plurality of gas inlet pipes 103 are further arranged on the distributor cavity 101, the gas inlet pipes 103 penetrate through the upper end surface and the lower end surface of the distributor cavity 101, and the lower ends of the gas inlet pipes 103 are distributed among the liquid outlet pipes 105, that is, the gas inlet pipes 103 and the liquid outlet pipes 105 are distributed on the lower end surface of the distributor cavity 101 in a staggered manner, so that sufficient mixing of gas and liquid can be ensured. Also arranged on the distributor chamber 1 are distance tubes 10, through which distance tubes 10 the distributor chamber 101 is mounted.

The implementation principle of a distributor of the embodiment of the application is as follows:

liquid inlet pipe 102 sends liquid into distributor cavity 101 in, liquid outlet 104 through on the liquid inlet pipe 102 sprays liquid to all around from distributor cavity 101's center, liquid falls into in distributor cavity 101, and divide into a plurality of part with liquid through distributor cavity 101, and go out liquid through a plurality of drain pipes 105, gaseous entering from intake pipe 103 upper end simultaneously, discharge from intake pipe 103 lower extreme, just so make the abundant contact of liquid that gas can flow with each drain pipe 105, the contact surface of gas with liquid has been increased, thereby the sufficiency and the homogeneity of the mixture of gas-liquid have been improved.

Referring to fig. 4, the present embodiment further discloses a gas-liquid phase tubular reactor, which includes a feeding cavity 2, a shell side 3 and a discharging cavity 4, wherein a liquid inlet 8 and a gas inlet 9 are arranged at the upper end of the feeding cavity 2, the liquid inlet 8 is used for liquid inlet, and the gas inlet 9 is used for gas inlet. The bottom of the discharging cavity 4 is provided with a discharging hole and a pressure pipe orifice 15, the discharging hole is used for discharging materials, and the pressure pipe orifice 15 is used for connecting a pressure gauge to measure the pressure in the discharging cavity 4.

The feeding cavity 2 and the discharging cavity 4 are respectively connected with the upper end and the lower end of the shell pass 3 through flanges 14, and an upper tube plate 5 is arranged at the joint of the shell pass 3 and the feeding cavity 2. Also arranged in the feed chamber 2 is a distributor 1, which distributor 1 is a distributor 1 as shown in fig. 1 to 3. Distance tubes 10 are further arranged on the distributor 1, in the embodiment, 4 distance tubes 10 are arranged, the upper end of each distance tube 10 is connected with the distributor 1, and the lower end of each distance tube 10 is connected with the upper tube plate 5, so that the distributor 1 and the upper tube plate 5 are fixed well. By adjusting the length of the distance tube 10, the distance between the lower end surface of the distributor chamber 101 and the upper end surface of the upper tube plate 5 can be changed. The distance of the gas-liquid mixing region can also be changed.

A lower tube plate 6 is arranged at the joint of the shell pass 3 and the discharge cavity 4, a plurality of reaction tubes 7 are arranged between the upper tube plate 5 and the lower tube plate 6, and catalysts are arranged in the reaction tubes 7.

Still be provided with heat transfer liquid import 11 and heat transfer liquid export 12 on shell side 3, be provided with baffling board 13 in shell side 3, through leading through heat transfer liquid in heat transfer liquid import 11, in this embodiment, heat transfer liquid adopts the cooling water, flows into shell side 3 in from heat transfer liquid import 11 through the cooling water, and rethread heat transfer liquid export 12 flows out after baffling board 13.

The gas-liquid phase tubular reactor of the embodiment of the application has the following implementation principle:

liquid flows in from a liquid inlet 8 on the feeding cavity 2, flows out through the liquid inlet pipe 102 and the distributor 1, and flows out to the area between the distributor 1 and the upper tube plate 5, gas enters the feeding cavity 2 through a gas inlet 9, passes through the distributor 1 through a gas inlet pipe 103, and flows out to the area between the distributor 1 and the upper tube plate 5; in gas and liquid get into reaction tube 7 after the regional intensive mixing between distributor 1 and upper tube plate 5, through catalyst reaction back, get into in ejection of compact chamber 4 to through the discharge gate ejection of compact on the ejection of compact chamber 4, whole in-process, gas and liquid can mix fully, can improve the efficiency of reaction.

The heat generated in the reaction process is carried out by introducing cooling water from the heat exchange liquid inlet 11, wherein the cooling water flows into the shell pass 3, is baffled by the baffle plate 13 and then flows out through the heat exchange liquid outlet 12, and the heat in the shell pass 3 can be carried out.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A distributor, characterized by: including distributor cavity (101) the upper end of distributor cavity (101) be connected with feed liquor pipe (102) that stretch into distributor cavity (101) on still be provided with a plurality of intake pipes (103), intake pipe (103) link up the upper and lower terminal surface of distributor cavity (101) the lower terminal surface of distributor cavity (101) still be provided with a plurality of openings, be provided with drain pipe (105) on the opening.

2. A distributor as defined in claim 1, wherein: the liquid inlet pipe (102) is arranged at the central position of the distributor cavity (101), the bottom of the part, extending into the distributor cavity (101), of the liquid inlet pipe (102) is blocked, and the side wall of the liquid inlet pipe is provided with a plurality of liquid outlets (104).

3. The utility model provides a gas-liquid looks tubular reactor, includes feeding chamber (2), shell side (3) and goes out material chamber (4), feeding chamber (2) and go out material chamber (4) be connected with shell side (3) respectively, be provided with tube sheet (5) and lower tube sheet (6) in shell side (3), be provided with a plurality of reaction tubes (7) between tube sheet (5) and lower tube sheet (6) reaction tube (7) in be provided with the catalyst, be provided with the feed inlet on feeding chamber (2), be provided with discharge gate, its characterized in that on going out material chamber (4): a distributor (1) is arranged in the feeding cavity (2), the distributor (1) is the distributor (1) in claim 1 or 2, the feeding hole comprises a liquid inlet (8) and a gas inlet (9), and one end of the liquid inlet pipe (102) is connected with the liquid inlet (8).

4. A gas-liquid phase tubular reactor as claimed in claim 3 wherein: the distributor (1) is connected with the upper tube plate (5) through a distance tube (10).

5. A gas-liquid phase tubular reactor according to claim 4 wherein: the shell pass (3) is also provided with a heat exchange liquid inlet (11) and a heat exchange liquid outlet (12).

6. A gas-liquid phase tubular reactor according to claim 5 wherein: a baffle plate (13) is arranged in the shell pass (3).

7. A gas-liquid phase tubular reactor as claimed in claim 3 wherein: the feeding cavity (2) is connected with the shell pass (3) by a flange (14); the discharging cavity (4) is connected with the shell pass (3) through a flange (14).

8. A gas-liquid phase tubular reactor as claimed in claim 3 wherein: the discharging cavity (4) is also provided with a pressure pipe orifice (15), and the pressure pipe orifice (15) is provided with a pressure gauge.