Flow velocity control device for synthesizing adiponitrile through acrylonitrile electrolytic dimerization

Abstract

The utility model relates to a flow velocity control device for synthesizing adiponitrile through acrylonitrile electrolytic dimerization. The flow velocity control device comprises an electrolytic tank; one end of the voltage-stabilizing mixing module is fixedly connected with the inner side wall of the electrolysis tank, the voltage-stabilizing mixing module is used for adjusting the amount of different sections of liquid sprayed into the electrolysis tank, the voltage-stabilizing mixing module comprises a voltage-stabilizing pipeline, a second motor and a telescopic rod, one end of the voltage-stabilizing pipeline is fixedly connected with an output shaft of the second motor, and the other end of the voltage-stabilizing pipeline is fixedly connected with an output shaft of the second motor. A clamping groove and a sliding groove are formed in the pressure stabilizing pipeline, the fixed end of the telescopic rod is fixedly arranged in the clamping groove, a limiting plate is fixedly arranged at the telescopic end of the telescopic rod, the limiting plate is in sliding connection with the sliding groove, a water outlet hole is formed in the pressure stabilizing pipeline, and a monitoring assembly is fixedly arranged at one end of the electrolysis tank. The uniformity of liquid spraying is adjusted according to the monitored flow speed of the liquid, so that liquid electrolysis is more sufficient, meanwhile, the electrolysis efficiency can be improved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile. Background Art

[0002] The synthesis of adiponitrile can use acrylonitrile as a raw material, and adiponitrile can be initially obtained by electrolysis of acrylonitrile. In the process of electrolytic synthesis, it is necessary to add the required liquid to the acrylonitrile. The added liquid needs to be carried out according to the amount of acrylonitrile, and the adding speed needs to be controlled at the same time, so that the acrylonitrile can be fully electrolyzed, which is beneficial to the utilization of resources. In this process, a flow rate control device needs to be used;

[0003] After searching, a Chinese patent with the announcement number CN203962572U discloses a flow rate control device. The utility model provides a flow rate control device, which includes: a pipe body that can be connected to a delivery pipeline and is used to contain a fluid, and the pipe body is provided with a vent hole that radially penetrates the pipe body and can be opened and closed. The flow rate control device provided by the utility model controls the flow rate of the fluid by using flexible gas instead of a rigid gate valve, thereby avoiding direct impact of the fluid on the pipe body, reducing the degree of wear of the fluid on the pipe body, extending the service life of the pipe body, avoiding the occurrence of frequent replacement, and fundamentally reducing the maintenance workload and production costs.

[0004] In this patent, the flow rate of the liquid entering the pipeline is controlled only by controlling the valve, but the volume of water that can flow through the pipeline cannot be changed. After the liquid in the pipeline is reduced, the pressure of the liquid inside the pipeline on the pipeline will become uneven, and the amount of liquid sprayed from different sections of the pipeline will become uneven, resulting in insufficient electrolysis and low efficiency. Utility Model Content

[0005] In view of the existing patents, the flow rate of the liquid entering the pipeline is only controlled by controlling the valve, and the volume of the water passing through the pipeline cannot be changed. After the liquid in the pipeline is reduced, the pressure of the liquid inside the pipeline on the pipeline will be uneven, and the amount of liquid sprayed from different sections of the pipeline will be uneven, resulting in technical problems such as insufficient electrolysis and low efficiency. The utility model provides a flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile.

[0006] The technical solution adopted by the utility model is: a flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile, comprising:

[0007] Electrolysis box;

[0008] A pressure-stabilizing mixing module, one end of which is fixedly connected to the inner side wall of the electrolytic box, the pressure-stabilizing mixing module is used to adjust the amount of liquid sprayed into different sections of the electrolytic box, the pressure-stabilizing mixing module includes a pressure-stabilizing pipe, a second motor and a telescopic rod, one end of the pressure-stabilizing pipe is fixedly connected to the output shaft of the second motor, a card slot and a slide groove are provided inside the pressure-stabilizing pipe, the fixed end of the telescopic rod is fixedly installed in the card slot, the telescopic end of the telescopic rod is fixedly installed with a limit plate, the limit plate is slidably connected to the slide groove, and a water outlet is provided on the pressure-stabilizing pipe.

[0009] Furthermore, a monitoring component is fixedly installed at one end of the electrolytic box, and one end of the voltage-stabilizing mixing module is fixedly penetrated through a port of the monitoring component, and the monitoring component is used to monitor the flow rate of the liquid added to the electrolytic box.

[0010] Furthermore, the monitoring component includes a liquid inlet pipe, a connecting block, a flow rate monitoring sensor, a motor 1 and a valve 1. The liquid inlet pipe is fixedly inserted into one end of the connecting block, the flow rate monitoring sensor and the motor 1 are fixedly installed inside the connecting block, the valve 1 is fixedly connected to the output shaft of the motor 1, the valve 1 is movably connected to the internal side wall of the connecting block, and a rotating joint is fixedly inserted into one end of the connecting block away from the liquid inlet pipe.

[0011] Furthermore, the side walls of the electrolytic box are welded with supporting legs.

[0012] Furthermore, a water outlet pipe is fixedly mounted on the electrolytic box.

[0013] Furthermore, a second valve is fixedly installed in the water outlet pipe.

[0014] The beneficial effects of the utility model are as follows: compared with the prior art, in the utility model, by setting up the monitoring component and the pressure-stabilizing mixing module, it is possible to achieve a better balance in the pressure of the liquid sprayed from different water outlets, to make the concentrations of the liquids added in different sections the same, to reduce the extreme difference in concentration, and by setting up the pressure-stabilizing mixing module, it is also possible to achieve the effect of fully mixing the liquids, to accelerate the mixing of different liquids, and to improve the efficiency of electrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model when viewed from above;

[0016] Figure 2 It is a right view structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the monitoring component and the voltage stabilizing hybrid module of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the monitoring component and the voltage-stabilizing hybrid module of the utility model.

[0019] The markings in the figure are: 1. Electrolytic box; 2. Monitoring component; 201. Liquid inlet pipe; 202. Connecting block; 203. Flow rate monitoring sensor; 204. Motor 1; 205. Valve 1; 206. Rotating joint; 3. Pressure stabilizing mixing module; 301. Pressure stabilizing pipeline; 302. Motor 2; 303. Telescopic rod; 304. Slot; 305. Slide; 306. Limit plate; 307. Water outlet; 4. Leg; 5. Water outlet pipe; 6. Valve 2. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The following is combined with Figure 1-4 The utility model is further described.

[0023] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile.

[0024] The specific technical solution includes: an electrolytic box 1 and a voltage-stabilizing mixing module 3;

[0025] like Figure 1-4The electrolytic box 1 can be used to load liquid and facilitate the electrolysis of the liquid. One end of the pressure-stabilizing mixing module 3 is fixedly connected to the inner side wall of the electrolytic box 1. The pressure-stabilizing mixing module 3 can stabilize the pressure of the added liquid. The pressure-stabilizing mixing module 3 is used to adjust the amount of liquid in different sections sprayed into the electrolytic box 1. The pressure-stabilizing mixing module 3 includes a pressure-stabilizing pipe 301, a second motor 302 and a telescopic rod 303. One end of the pressure-stabilizing pipe 301 is fixedly connected to the output shaft of the second motor 302. A card slot 304 and a slide slot 305 are provided inside the pressure-stabilizing pipe 301. The card slot 304 The telescopic rod 303 can be fixed, and the slide groove 305 can limit the limit plate 306. The fixed end of the telescopic rod 303 is fixedly installed in the slot 304. The telescopic end of the telescopic rod 303 is fixedly installed with a limit plate 306. The limit plate 306 can adjust the cross-sectional area of ​​the pressure-stabilizing pipe 301 that can be used for water to pass through, and then adjust the volume of the space inside the pressure-stabilizing pipe 301 that can be used for water to pass through, so as to stabilize the pressure applied by the liquid to different sections of the pressure-stabilizing pipe 301. The limit plate 306 is slidably connected to the slide groove 305, and a water outlet hole 307 is opened on the pressure-stabilizing pipe 301.

[0026] The flow rate of the liquid entering the monitoring component 2 is adjusted as needed. When the flow rate of the liquid monitored by the monitoring component 2 becomes smaller, the flow rate monitoring sensor 203 transmits the information to the telescopic rod 303. The telescopic rod 303 extends to drive the limit plate 306 to move. The limit plate 306 moves toward the direction close to the water outlet 307. The limit plate 306 slides in the slide groove 305. The two sides of the limit plate 306 can block the cross-section of the pressure-stabilizing pipe 301, and the space inside the pressure-stabilizing pipe 301 close to the water outlet 307 is reduced. When the liquid enters the pressure-stabilizing pipe 301 with a smaller cross-section, the pressure of the liquid on the inner wall of the pressure-stabilizing pipe 301 increases, and the liquid can move toward the direction close to the motor 2 302. The liquid can be evenly sprayed out from different water outlets 307, and the liquid in the water outlets 307 is sprayed into the electrolytic box 1. By starting the motor 2 302 to drive the pressure-stabilizing pipe 301 to rotate, the pressure-stabilizing pipe 301 can drive the liquid to rotate, which can make the liquid spray more evenly, and at the same time can increase the contact area between different liquids, thereby accelerating the efficiency of electrolysis.

[0027] like Figure 1-4As shown, a monitoring component 2 is fixedly installed at one end of the electrolytic box 1, and one end of the voltage-stabilizing mixing module 3 is fixedly installed at the port of the monitoring component 2. The monitoring component 2 is used to monitor the flow rate of the liquid added to the electrolytic box 1. The monitoring component 2 includes a liquid inlet pipe 201, a connecting block 202, a flow rate monitoring sensor 203, a motor 204 and a valve 205. The liquid inlet pipe 201 is fixedly installed at one end of the connecting block 202. The liquid inlet pipe 201 can transport liquid to the connecting block 202. The inside of the connecting block 202 is fixedly equipped with a flow rate monitoring sensor. The flow rate monitoring sensor 203 and the motor 204, the flow rate monitoring sensor 203 can monitor the liquid entering the connecting block 202, the valve 205 is fixedly connected to the output shaft of the motor 204, the valve 205 is movably connected to the inner side wall of the connecting block 202, and a rotating joint 206 is fixedly penetrated at one end of the connecting block 202 away from the liquid inlet pipe 201, and the rotating joint 206 is connected and communicated with the pressure-stabilizing pipeline 301, which can facilitate the liquid in the connecting block 202 to enter the pressure-stabilizing pipeline 301 through the rotating joint 206.

[0028] The liquid enters the liquid inlet pipe 201, and the liquid in the liquid inlet pipe 201 enters the connecting block 202. When the flow rate needs to be changed, the valve 205 is driven to rotate by starting the motor 204. The opening and closing degree of the valve 205 changes, which can change the flow rate of the liquid passing through the connecting block 202. The liquid can be monitored by the flow rate monitoring sensor 203, and the flow rate monitoring sensor 203 can transmit the data to the control panel, and the control panel can control the extension and retraction of the telescopic rod 303.

[0029] A support leg 4 is welded to the side wall of the electrolytic box 1 , a water outlet pipe 5 is fixedly mounted on the electrolytic box 1 , and a valve 6 is fixedly mounted inside the water outlet pipe 5 .

[0030] The legs 4 can support and fix the electrolytic box 1, and the valve 2 6 can be opened to facilitate the discharge of liquid from the water outlet pipe 5.

[0031] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0032] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile, characterized in that: include: Electrolysis box (1); A pressure-stabilizing mixing module (3), one end of which is fixedly connected to the inner side wall of the electrolytic box (1), and the pressure-stabilizing mixing module (3) is used to adjust the amount of liquid sprayed into different sections of the electrolytic box (1). The pressure-stabilizing mixing module (3) comprises a pressure-stabilizing pipe (301), a second motor (302) and a telescopic rod (303), one end of which is fixedly connected to the output shaft of the second motor (302), a card slot (304) and a slide groove (305) are provided inside the pressure-stabilizing pipe (301), a fixed end of the telescopic rod (303) is fixedly installed in the card slot (304), a limit plate (306) is fixedly installed at the telescopic end of the telescopic rod (303), and the limit plate (306) is slidably connected to the slide groove (305), and a water outlet hole (307) is provided on the pressure-stabilizing pipe (301).

2. The flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile according to claim 1, characterized in that: A monitoring component (2) is fixedly mounted on one end of the electrolytic box (1), and one end of the voltage-stabilizing mixing module (3) is fixedly inserted through a port of the monitoring component (2). The monitoring component (2) is used to monitor the flow rate of the liquid added to the electrolytic box (1).

3. The flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile according to claim 2, characterized in that: The monitoring component (2) comprises a liquid inlet pipe (201), a connecting block (202), a flow rate monitoring sensor (203), a motor (204) and a valve (205); the liquid inlet pipe (201) is fixedly inserted through one end of the connecting block (202); the flow rate monitoring sensor (203) and the motor (204) are fixedly installed inside the connecting block (202); the valve (205) is fixedly connected to the output shaft of the motor (204); the valve (205) is movably connected to the inner side wall of the connecting block (202); and a rotating joint (206) is fixedly inserted through one end of the connecting block (202) away from the liquid inlet pipe (201).

4. The flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile according to claim 1, characterized in that: The side walls of the electrolytic box (1) are welded with supporting legs (4).

5. The flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile according to claim 4, characterized in that: A water outlet pipe (5) is fixedly mounted on the electrolytic box (1).

6. The flow rate control device for synthesizing adiponitrile by electrolytic dimerization of acrylonitrile according to claim 5, characterized in that: A second valve (6) is fixedly installed in the water outlet pipe (5).

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