Continuous discharge liquid level control device for hydrogenation kettle

Abstract

The utility model relates to a hydrogenation kettle, in particular to a hydrogenation kettle continuous discharging liquid level control device which comprises a bottom plate and a hydrogenation kettle installed at the upper end of the bottom plate, a discharging box located on one side of the hydrogenation kettle is installed on the upper end face of the bottom plate, and the inner center of the discharging box is fixedly connected with a vertically-arranged sliding rod. A suspension plate is slidably connected to the lower portion of the outer wall of the sliding rod, a pressing ring slidably connected to the outer wall of the sliding rod is fixedly connected to the upper portion of the suspension plate through a plurality of connecting rods, a sliding block is slidably connected to the upper portion of the outer wall of the sliding rod, and a pressure sensor is installed on the lower end face of the sliding block; and an infrared distance measuring sensor is arranged in the mounting cavity. The device is simple in structure, the automation degree is improved, discharging is thorough every time, raw material residues are avoided, and practicability is improved; the discharging amount can be adjusted according to needs, and use is convenient.

Description

Technical Field

[0001] The utility model relates to a hydrogenation kettle, in particular to a continuous discharge liquid level control device of the hydrogenation kettle. Background Art

[0002] Hydrogenation reactors are widely used in various catalytic reactions, high temperature and high pressure synthesis, hydrogenation reactions, gas-liquid two-phase, liquid-liquid two-phase, exothermic reactions, composition testing, stability, corrosion testing, fine processing, supercritical reactions, catalyst evaluation and development, etc. They are widely used in petrochemical, chemical, pharmaceutical, polymer synthesis and metallurgy fields. Liquid phase catalytic hydrogenation reaction involves a gas, liquid and solid three-phase flow system, and the mass transfer process is complex, and it is necessary to pay attention to both the solid-liquid mass transfer efficiency and the gas-liquid mass transfer efficiency;

[0003] After searching, the patent with publication number CN212882350U discloses a continuous discharge liquid level control device for a hydrogenation reactor. Since the device is equipped with a suspension ball, when the raw material in the discharge box increases, the suspension ball will move upward, so that the two first conductive sheets can fit together through the tooth plate, and then the controller will control the liquid pump to stop working; when the raw material in the discharge box decreases, the suspension ball will move the tooth plate downward, so that the shaft can rotate in the opposite direction, and the two second conductive sheets can fit together through the moving plate, and the controller can control the liquid pump to work and add raw materials to the discharge box, and so on.

[0004] Although the above-mentioned device can realize continuous discharging and can control the discharging liquid level so that the amount of discharging is equal, the movement of the conductive sheet is realized by structures such as gear teeth, and the structure is relatively complicated. In the course of operation, if the amount of raw materials in the discharging box is too little, it is judged by the contact of the two second conductive sheets. Then, the liquid pump will be controlled to add raw materials to the discharging box, resulting in residual raw materials in the discharging box at all times, and each discharging is incomplete, thus affecting the use effect of the raw materials. In addition, the device judges whether the raw materials in the raw material box have reached the preset liquid level through the contact of the two first conductive sheets, and the position of the first conductive sheet located above is fixed. Although it can ensure that the amount of material discharged each time is equal, the amount of material discharged cannot be adjusted according to needs, and its practicality is poor. Summary of the invention

[0005] The utility model provides a continuous discharging liquid level control device for a hydrogenation kettle, which has a simple structure, improves the degree of automation, discharges materials thoroughly, avoids raw material residue, can adjust the discharging amount according to needs, and is easy to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for controlling the continuous discharge liquid level of a hydrogenation kettle, comprising a bottom plate and a hydrogenation kettle installed on the upper end of the bottom plate, a discharge box located on one side of the hydrogenation kettle installed on the upper end surface of the bottom plate, a vertically arranged sliding rod fixedly connected to the inner center of the discharge box, a suspension plate slidably connected to the lower outer wall of the sliding rod, a pressure ring slidably connected to the outer wall of the sliding rod fixedly connected to the upper part of the suspension plate through a plurality of connecting rods, a slider slidably connected to the upper outer wall of the sliding rod, a pressure sensor installed on the lower end surface of the slider, an installation cavity located below the suspension plate is opened at the inner bottom end of the discharge box, and an infrared ranging sensor is arranged inside the installation cavity;

[0007] A mounting plate is fixedly connected to one side of the inner wall of the discharge box, a screw rod is rotatably connected between the inner top of the discharge box and the mounting plate, a movable block is movably connected to the outer wall of the screw rod, and a connecting shaft is fixedly connected between the movable block and the slider.

[0008] In order to introduce the raw materials into the discharge box, as a preferred embodiment of the hydrogenation kettle continuous discharge liquid level control device of the present invention, a material guide pipe is connected between the hydrogenation kettle and the discharge box, and a liquid pump is installed on the outer wall of the material guide pipe.

[0009] In order to drive the screw to rotate, as a preferred embodiment of the hydrogenation reactor continuous discharge liquid level control device of the present invention, a motor for driving the screw to rotate is installed on the top of the discharge box.

[0010] In order to facilitate the control of the present invention, as a preferred device for controlling the continuous discharge liquid level of a hydrogenation reactor of the present invention, a controller is installed on the outer wall of the discharge box.

[0011] In order to protect the infrared ranging sensor, as a preferred embodiment of the hydrogenation reactor continuous discharge liquid level control device of the utility model, the upper end surface of the installation cavity is fixedly connected with a transparent panel.

[0012] In order to facilitate the discharge, as a preferred device for controlling the continuous discharge liquid level of a hydrogenation reactor of the utility model, a discharge pipe is fixedly connected to the lower part of the outer wall of the discharge box, and a solenoid valve is arranged on the outer wall of the discharge pipe.

[0013] In order to facilitate the measurement of the distance by the infrared distance measuring sensor, as a preferred embodiment of the hydrogenation reactor continuous discharge liquid level control device of the utility model, the lower end surface of the suspension plate is equipped with an infrared receiving end matching the infrared distance measuring sensor.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model discloses that during the discharging process, as the amount of raw materials in the discharging box is continuously reduced, the suspension plate also drops accordingly, until all the raw materials in the discharging box are discharged, the infrared distance measuring sensor detects that the distance between the suspension plate and the suspension plate reaches a preset range, and then transmits a signal to the controller, which further controls the start of the liquid pump to add raw materials into the discharging box again, and so on and so forth, so as to realize continuous discharging, the equipment has a simple structure, and the degree of automation is improved, and each time the materials are discharged thoroughly, so that raw material residue is avoided, and the practicality is improved.

[0016] When the motor starts, the output end of the motor drives the screw to rotate, and the screw drives the movable block of the outer wall to move up and down. The movable block drives the slider to move up and down through the connecting shaft, thereby adjusting the height of the pressure sensor. The height change of the pressure sensor determines the height of the contact position between the pressure ring and the pressure sensor, so that the controller controls the time for the liquid pump to stop guiding the material in advance or delay, so that the discharge amount can be adjusted according to needs, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the discharge box of the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at point a in the middle.

[0021] In the figure: 1. bottom plate; 2. hydrogenation kettle; 3. discharge box; 4. slide rod; 5. suspension plate; 6. pressure ring; 7. connecting rod; 8. slider; 9. pressure sensor; 10. mounting plate; 11. screw rod; 12. movable block; 13. connecting shaft; 14. guide pipe; 15. liquid pump; 16. motor; 17. controller; 18. mounting cavity; 19. infrared ranging sensor; 20. transparent panel; 21. discharge pipe; 22. solenoid valve. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0025] See also Figures 1 to 3 A hydrogenation reactor continuous discharge liquid level control device comprises a bottom plate 1 and a hydrogenation reactor 2 installed on the upper end of the bottom plate 1, a discharge box 3 located on one side of the hydrogenation reactor 2 is installed on the upper end surface of the bottom plate 1, a vertically arranged slide bar 4 is fixedly connected to the inner center of the discharge box 3, a suspension plate 5 is slidably connected to the lower outer wall of the slide bar 4, a pressure ring 6 slidably connected to the outer wall of the slide bar 4 is fixedly connected to the upper part of the suspension plate 5 through a plurality of connecting rods 7, a slide block 8 is slidably connected to the upper outer wall of the slide bar 4, a pressure sensor 9 is installed on the lower end surface of the slide block 8, an installation cavity 18 located below the suspension plate 5 is opened at the inner bottom end of the discharge box 3, and an infrared distance measuring sensor 19 is arranged inside the installation cavity 18;

[0026] A mounting plate 10 is fixedly connected to one side of the inner wall of the discharge box 3, a screw rod 11 is rotatably connected between the inner top of the discharge box 3 and the mounting plate 10, a movable block 12 is movably connected to the outer wall of the screw rod 11, and a connecting shaft 13 is fixedly connected between the movable block 12 and the slider 8.

[0027] In this embodiment: the power is turned on, and the controller 17 controls the liquid pump 15 to start. The liquid pump 15 can pump the raw materials in the hydrogenation reactor 2 into the discharge box 3. As the amount of raw materials in the discharge box 3 increases, the suspension plate 5 will move upward, driving the pressure ring 6 to move upward until the pressure ring 6 contacts and squeezes the pressure sensor 9 at the bottom of the slider 8. At this time, the pressure sensor 9 will transmit a signal to the controller 17, and the controller 17 controls the liquid pump 15 to stop guiding the material. At this time, a certain amount of raw materials is stored in the discharge box 3. The solenoid valve 22 is opened to discharge the certain amount of raw materials through the discharge pipe 21. During the discharge process, as the amount of raw materials in the discharge box 3 continues to decrease, the suspension plate 5 also drops accordingly. Until all the raw materials in the discharge box 3 are discharged, the infrared ranging sensor 19 detects that the distance between the suspension plate 5 and the infrared ranging sensor 19 reaches a preset range. At this time, the signal will be transmitted to the controller 17, and the controller 17 further controls the liquid pump 15 to start, and re-add raw materials to the inside of the discharge box 3. This reciprocating process can achieve continuous discharge. The utility model has a simple structure, improves the degree of automation, and discharges materials thoroughly each time, thus avoiding raw material residue and improving practicability.

[0028] When the motor 16 is started, the output end of the motor 16 drives the screw 11 to rotate, the screw 11 drives the movable block 12 of the outer wall to move up and down, and the movable block 12 drives the slider 8 to move up and down through the connecting shaft 13, thereby adjusting the height of the pressure sensor 9. The height change of the pressure sensor 9 determines the height of the contact position between the pressure ring 6 and the pressure sensor 9, so that the controller 17 controls the time for the liquid pump 15 to stop guiding the material in advance or delay, so that the discharge amount can be adjusted according to needs, which is convenient to use.

[0029] As a technical optimization solution of the utility model, a material guide pipe 14 is connected between the hydrogenation kettle 2 and the discharge box 3 , and a liquid pump 15 is installed on the outer wall of the material guide pipe 14 .

[0030] In this embodiment, the raw materials can be conveniently introduced into the discharge box 3 by turning on the liquid pump 15 .

[0031] As a technical optimization solution of the present invention, a motor 16 for driving the screw rod 11 to rotate is installed on the top of the discharge box 3.

[0032] In this embodiment, the motor 16 is provided to conveniently drive the screw rod 11 to rotate, thereby adjusting the height of the pressure sensor 9 .

[0033] As a technical optimization solution of the present utility model, a controller 17 is installed on the outer wall of the discharge box 3 .

[0034] In this embodiment, the pressure sensor 9, the liquid pump 15, the motor 16, the infrared distance sensor 19 and the electromagnetic valve 22 are all electrically connected to the controller 17, so as to facilitate the control of the utility model and realize automatic material guiding and discharging.

[0035] As a technical optimization solution of the present invention, a transparent panel 20 is fixedly connected to the upper end surface of the installation cavity 18 .

[0036] In this embodiment, by providing the transparent panel 20 , the infrared distance measuring sensor 19 can be protected without affecting the normal operation of the infrared distance measuring sensor 19 .

[0037] As a technical optimization solution of the utility model, a discharge pipe 21 is fixedly connected to the lower part of the outer wall of the discharge box 3 , and a solenoid valve 22 is arranged on the outer wall of the discharge pipe 21 .

[0038] In this embodiment, by providing a solenoid valve 22 , when the solenoid valve 22 is opened, it is convenient to discharge the material through the discharge pipe 21 , and the solenoid valve 22 controls the opening and closing of the discharge pipe 21 .

[0039] As a technical optimization solution of the utility model, an infrared receiving end matching the infrared distance measuring sensor 19 is installed on the lower end surface of the suspension board 5 .

[0040] In this embodiment, an infrared receiving end is provided to facilitate measurement of the distance between the suspension plate 5 and the bottom end of the discharge box 3 .

[0041] Working principle: When the utility model is used, the power is turned on, and the controller 17 controls the liquid pump 15 to start. The liquid pump 15 can pump the raw materials in the hydrogenation reactor 2 into the discharge box 3. As the amount of raw materials in the discharge box 3 increases, the suspension plate 5 will move upward, driving the pressure ring 6 to move upward until the pressure ring 6 contacts and squeezes the pressure sensor 9 at the bottom of the slider 8. At this time, the pressure sensor 9 will transmit a signal to the controller 17, and the controller 17 controls the liquid pump 15 to stop guiding the material. At this time, a certain amount of raw materials is stored in the discharge box 3. The solenoid valve 22 is opened to discharge a certain amount of raw materials through the discharge pipe 21. During the discharge process, as the amount of raw materials in the discharge box 3 continues to decrease, the suspension plate 5 also decreases until all the raw materials in the discharge box 3 are discharged. When the external distance measuring sensor 19 detects that the distance between the external distance measuring sensor 19 and the suspension plate 5 reaches the preset range, the signal is transmitted to the controller 17 at this time. The controller 17 further controls the start of the liquid pump 15 to add raw materials to the inside of the discharge box 3 again, and repeats this process to achieve continuous discharge. When the motor 16 is started, the output end of the motor 16 drives the screw rod 11 to rotate, and the screw rod 11 drives the movable block 12 of the outer wall to move up and down. The movable block 12 drives the slider 8 to move up and down through the connecting shaft 13, thereby adjusting the height of the pressure sensor 9. The height change of the pressure sensor 9 determines the height of the contact position between the pressure ring 6 and the pressure sensor 9, so that the controller 17 controls the liquid pump 15 to stop guiding the material in advance or in advance, so that the discharge amount can be adjusted according to needs, which is convenient to use.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogenation reactor continuous discharge liquid level control device, comprising a bottom plate (1) and a hydrogenation reactor (2) mounted on the upper end of the bottom plate (1), characterized in that: The upper end surface of the bottom plate (1) is provided with a discharge box (3) located on one side of the hydrogenation reactor (2); the inner center of the discharge box (3) is fixedly connected with a vertically arranged slide bar (4); a suspension plate (5) is slidably connected to the lower part of the outer wall of the slide bar (4); a pressure ring (6) slidably connected to the outer wall of the slide bar (4) is fixedly connected above the suspension plate (5) via a plurality of connecting rods (7); a slider (8) is slidably connected to the upper part of the outer wall of the slide bar (4); a pressure sensor (9) is installed on the lower end surface of the slider (8); an installation cavity (18) located below the suspension plate (5) is provided at the inner bottom end of the discharge box (3); an infrared distance measuring sensor (19) is arranged inside the installation cavity (18); A mounting plate (10) is fixedly connected to one side of the inner wall of the discharge box (3); a screw rod (11) is rotatably connected between the inner top of the discharge box (3) and the mounting plate (10); a movable block (12) is movably connected to the outer wall of the screw rod (11); and a connecting shaft (13) is fixedly connected between the movable block (12) and the slider (8).

2. A hydrogenation reactor continuous discharge liquid level control device according to claim 1, characterized in that: A material guide pipe (14) is connected between the hydrogenation kettle (2) and the discharge box (3), and a liquid extraction pump (15) is installed on the outer wall of the material guide pipe (14).

3. A hydrogenation reactor continuous discharge liquid level control device according to claim 1, characterized in that: A motor (16) for driving the screw rod (11) to rotate is installed on the top of the discharge box (3).

4. A hydrogenation reactor continuous discharge liquid level control device according to claim 1, characterized in that: A controller (17) is installed on the outer wall of the discharge box (3).

5. A hydrogenation reactor continuous discharge liquid level control device according to claim 1, characterized in that: A transparent panel (20) is fixedly connected to the upper end surface of the installation cavity (18).

6. A hydrogenation reactor continuous discharge liquid level control device according to claim 1, characterized in that: A discharge pipe (21) is fixedly connected to the lower part of the outer wall of the discharge box (3), and a solenoid valve (22) is arranged on the outer wall of the discharge pipe (21).

7. A hydrogenation reactor continuous discharge liquid level control device according to claim 1, characterized in that: An infrared receiving end matching the infrared distance measuring sensor (19) is installed on the lower end surface of the suspension plate (5).

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