Reaction kettle liquid inlet control equipment

By using technical means such as pressure stabilizing tanks, float flow meters and constant flow valves in the liquid inlet control equipment of the reactor, the problem of large fluctuations in the liquid level display of bubbled liquid level meter is solved, and the accuracy and process of liquid level measurement are achieved. The accuracy of control ensures the stability of product quality.

CN119158487APending Publication Date: 2024-12-20SUQIAN YIDA NEW MATERIAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202410987792.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

The existing bubble level gauge fluctuates greatly during use, resulting in the problem of inability to reference control for production.

Method used

A reactor liquid inlet control equipment is designed, including a differential pressure transmitter, a pressure stabilizer tank, a float flowmeter and a constant flow valve. The constant gas output is ensured through the pressure stabilizer tank, and the differential pressure transmitter measures pressure changes and float flow The gauges and constant flow valves ensure the stability of gas flow, the fixed structure is easy to install and debug, and the clamps and slides achieve stable clamping of the pipes.

Benefits of technology

The smoothness of liquid level display is achieved, the accuracy of measurement and the accuracy of process control is improved, the stability of product quality is ensured, and safety problems caused by insolid clamping are avoided.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119158487A_ABST
    Figure CN119158487A_ABST
Patent Text Reader

Abstract

The invention provides reaction kettle liquid inlet control equipment, and relates to the technical field of bubbling liquid level meters. The reaction kettle liquid inlet control equipment comprises a differential pressure transmitter, the sensing end of the differential pressure transmitter is fixedly connected with a communicating vessel, the end, away from the differential pressure transmitter, of the communicating vessel is fixedly connected with a float flowmeter, one side of the float flowmeter is fixedly connected with a constant flow valve, and the two sides of the communicating vessel are fixedly connected with connecting pipelines. The end, away from the communicating vessel, of the connecting pipeline is fixedly connected with a pressure stabilizing tank, the differential pressure transmitter and one end of the pressure stabilizing tank are fixedly connected with a fixing structure, and the middle of the fixing structure is slidably connected with a fixing pipe. By adding the surge tank, each interface of the surge tank is connected with each part of the bubbling liquid level meter through a pipeline, and the surge tank realizes the functions of pressure supply and pressure stabilization through multiple test adjustments, so that the liquid level display is stable, the process control is more accurate, and the product quality is more stable.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of bubbling liquid level gauges, in particular to a liquid inlet control device for a reactor. Background Art

[0002] The bubbling level gauge (also called the air-blowing level gauge) is a non-contact level measuring instrument, which is suitable for measuring the liquid in the open or closed container. The bubbling level gauge inserts an air blowing tube into the container, blows air or inert gas (such as nitrogen) into the liquid at a constant flow rate, and determines the liquid level by measuring the pressure change caused by the rising process of the gas in the liquid. In addition to measuring the level of clean liquids, the bubbling level gauge is particularly suitable for the level measurement of corrosive, viscous, easy to crystallize, high-temperature liquids, and liquids containing solid particles. It is also suitable for the measurement of fluidized bed material level. The bubbling level gauge is an important level measurement tool in industrial production due to its unique working principle and wide applicability.

[0003] In industrial production, the bubble level gauge is an important liquid level measurement tool. Its stability and accuracy are of great significance to ensure the smooth progress of the production process. However, the limitations of the design structure and working principle of the commonly used bubble level gauge often lead to large fluctuations in the liquid level display in actual applications, which makes it impossible to reference control in production.

[0004] Therefore, we have developed a new reactor liquid inlet control device. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a liquid inlet control device for a reactor, which solves the problem that the liquid level display of the existing bubbling liquid level gauge fluctuates greatly during use and production cannot be controlled by reference.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a reactor liquid inlet control device, including a differential pressure transmitter, a sensing end of the differential pressure transmitter is fixedly connected to a communicating vessel, an end of the communicating vessel away from the differential pressure transmitter is fixedly connected to a float flowmeter, one side of the float flowmeter is fixedly connected to a constant flow valve, two sides of the communicating vessel are fixedly connected to connecting pipes, an end of the connecting pipe away from the communicating vessel is fixedly connected to a pressure stabilizing tank, one end of the differential pressure transmitter and the pressure stabilizing tank is fixedly connected to a fixed structure, and a fixed pipe is slidably connected to the middle of the fixed structure;

[0009] A first air inlet, a second air inlet, a first air outlet and a second air outlet are installed on the surface of the pressure-stabilizing tank away from the fixed pipe. The first air inlet, the second air inlet, the first air outlet and the second air outlet are arranged in a tic-tac-toe array. The first air inlet, the second air inlet, the first air outlet and the second air outlet are fixedly connected to the connecting pipe respectively.

[0010] Preferably, the first air inlet is fixedly connected to a first connecting pipe, a one-way valve is provided in the middle of the first connecting pipe, the first connecting pipe is fixedly connected to the communicating vessel at one end away from the pressure-stabilizing tank, the second air inlet is fixedly connected to a third connecting pipe, the third connecting pipe is fixedly connected to a first control valve at one end away from the pressure-stabilizing tank, the bottom end of the first control valve is fixedly connected to an air intake pipe, a fifth connecting pipe is fixedly connected to one side of the first control valve, and the other end of the fifth connecting pipe is fixedly connected to the first connecting pipe.

[0011] Through the above technical solution, the pressure regulating tank realizes blowing and stabilizing functions to ensure constant flow gas output. Finally, the differential pressure transmitter measures the pressure change at the outlet of the blowing pipe to ensure that the differential pressure transmitter can accurately measure the stable pressure data at the outlet of the blowing pipe.

[0012] Preferably, the first air outlet is fixedly connected to a fourth connecting pipe, the fourth connecting pipe is fixedly connected to a three-way valve at one end away from the pressure-stabilizing tank, the bottom end of the three-way valve is fixedly connected to a second control valve, the bottom end of the second control valve is fixedly connected to an air outlet plug, the bottom open end of the air outlet plug is fixedly connected to a bubbler, the other end of the three-way valve is fixedly connected to the communicating vessel, the second air outlet is fixedly connected to a second connecting pipe, the end of the second connecting pipe away from the pressure-stabilizing tank is fixedly connected to the communicating vessel, and a filter pressure reducing valve is arranged in the middle of the second connecting pipe.

[0013] Through the above technical solution, the pressure regulating tank supplies and controls the liquid inlet structure of the reactor group, and can stabilize the gas source pressure when in use, prevent the air blowing pipe from being blocked, and ensure the air tightness of the air blowing structure. The air pressure in the air blowing pipeline must be stable to ensure the accuracy of the measurement.

[0014] Preferably, the constant flow valve includes an air inlet constant flow valve and an air outlet constant flow valve, the float flowmeter includes an air inlet float flowmeter and an air outlet float flowmeter, the bottom end of the constant flow valve is provided with a first interface, the top of the first interface is fixedly connected to the top of the float flowmeter, the bottom end of the constant flow valve is provided with a fourth interface, the fourth interface is fixedly connected to the bottom end of the float flowmeter, and the constant flow valve and the connecting end of the communicating vessel include a second interface and a third interface.

[0015] Through the above technical solution, the combination of the float flowmeter and the constant flow valve can ensure the stability of the gas flow and avoid the problem of inaccurate liquid level display caused by flow fluctuations. The float flowmeter detects the gas flow through the float inside it and outputs a corresponding signal according to the position of the float. The constant flow valve adjusts the valve opening according to this signal to keep the gas flow constant. In this way, even if the gas pressure or temperature changes, the gas flow can be kept stable, thereby improving the accuracy of liquid level measurement.

[0016] Preferably, the fixing structure includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are symmetrically arranged, a threaded rod is fixedly connected to the middle portion of the first mounting plate, the threaded rod is rotatably connected to the second mounting plate at one end away from the first mounting plate, the through-end of the threaded rod is threadedly connected to a nut, a plurality of sliding grooves are arranged in the middle portion of the first mounting plate and a plurality of clamping blocks are slidably connected to the inner sides of the sliding grooves, and the plurality of clamping blocks are symmetrically arranged, the clamping blocks are fixedly connected to the second sliding column at one side away from each other, a first sliding groove is arranged on the surface of the second sliding column, the surface of the second sliding column is slidably connected to a limiting sleeve, the inner wall of the limiting sleeve is fixedly connected to a limiting cylinder, the limiting cylinder is meshed and slidably connected with the first sliding groove, and the limiting sleeve is fixedly connected to the sliding groove.

[0017] Through the above technical solution, the design of the fixed structure makes installation and disassembly more convenient and improves work efficiency. The cooperation of the threaded rod and the nut allows the spacing between the first mounting plate and the second mounting plate to be flexibly adjusted to accommodate pipes or equipment of different sizes.

[0018] Preferably, the interior of the second slide column is a hollow structure, a slot is provided on one side of the bottom end of the second slide column, a slider is slidably connected inside the slot, one end of the slider is fixedly connected to a limiting block, the limiting block is fixedly connected to the slot opening, the interior of the second slide column is slidably connected to the first slide column, a second slide groove is provided on the surface of the first slide column, the second slide groove is an N-type structure, and the slider is meshed and slidably connected with the second slide groove.

[0019] Through the above technical solution, the design of the second slide column makes the clamp block more stable during the sliding process. At the same time, the coordinated use of the slot and the slider allows the first slide column to be easily inserted or pulled out of the second slide column, thereby achieving fine adjustment of the position of the clamp block. This design not only improves the flexibility of the equipment, but also makes the installation and debugging process easier. In addition, the hollow structure of the second slide column is also conducive to reducing the weight of the entire fixed structure, making the installation process easier.

[0020] Preferably, a spring is provided inside the second slide post, the spring is located between the second slide post and the first slide post, the first slide post is fixedly connected to a limiting ring at one end away from the second slide post, a fixing frame is rotatably connected to the outer side of the limiting ring, the fixing frame is fixedly connected to both sides of the first mounting plate, the first slide post is rotatably connected to the fixing frame through-and-through, a rotating plate is fixedly connected to the through end of the first slide post, and a rotating handle is rotatably connected to the surface of one end of the rotating plate.

[0021] Through the above technical solution, the setting of the spring can maintain the stability of the clamp to a certain extent and prevent it from being displaced due to vibration or external force. When the position of the clamp needs to be adjusted, the rotating plate can be driven to rotate by turning the handle, so that the first slide column slides inside the second slide column. Since the second slide groove is an N-type structure, the slider can slide in the second slide groove, thereby achieving a limiting effect on the first slide column. When the first slide column slides to the appropriate position, the handle can be released. At this time, the elastic force of the spring will fix the first slide column in the current position to maintain the stability of the clamp.

[0022] (III) Beneficial effects

[0023] The present invention provides a liquid inlet control device for a reactor, which has the following beneficial effects:

[0024] 1. This type of reactor liquid inlet control equipment can achieve a stable clamping of the pipeline through the coordinated use of the clamp block and the slide groove to prevent the pipeline from shifting or shaking during operation. At the same time, the design of the limit sleeve and the limit cylinder ensures the stability and accuracy of the clamp block during the sliding process, avoiding safety problems caused by loose clamping.

[0025] 2. This type of reactor liquid inlet control equipment adds a pressure-stabilizing tank, so that each interface of the pressure-stabilizing tank is connected to the bubbler level gauge through pipelines. After many tests and adjustments, the pressure-stabilizing tank realizes the pressure supply and pressure stabilization functions, making the liquid level display stable, so that the process control is more precise and the product quality is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0027] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention;

[0028] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 4 It is a schematic diagram of the overall structure of the fixing structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of the fixed structure of the present invention;

[0031] Figure 6 It is a partial cross-sectional view of the fixing structure of the present invention;

[0032] Figure 7 It is an exploded schematic diagram of the fixing structure of the present invention.

[0033] Among them, 1. differential pressure transmitter; 2. communicating vessel; 3. constant flow valve; 301. inlet constant flow valve; 302. outlet constant flow valve; 303. first interface; 304. second interface; 305. third interface; 306. fourth interface; 4. float flowmeter; 401. inlet float flowmeter; 402. outlet float flowmeter; 5. pressure regulating tank; 501. first air inlet; 502. second air inlet; 503. first air outlet; 504. second air outlet; 6. fixing structure; 601. first mounting plate; 602. second mounting plate; 603. threaded rod; 604. nut; 605. fixing frame; 606. rotating plate; 607. rotating handle; 608. slide groove ;609, first slide post;610, slider;611, second slide post;612, clamping block;613, limiting sleeve;614, spring;615, first slide groove;616, limiting block;617, limiting cylinder;618, second slide groove;619, limiting ring;620, slot;7, fixed pipe;8, connecting pipe;801, first connecting pipe;802, second connecting pipe;803, third connecting pipe;804, fourth connecting pipe;805, fifth connecting pipe;9, filter pressure reducing valve;10, first control valve;11, air inlet tube;12, bubbler;13, air outlet tube;14, second control valve;15, three-way valve;16, one-way valve. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example:

[0036] like Figure 1-7As shown, a reactor liquid inlet control device includes a differential pressure transmitter 1, a sensing end of the differential pressure transmitter 1 is fixedly connected to a communicating vessel 2, an end of the communicating vessel 2 away from the differential pressure transmitter 1 is fixedly connected to a float flowmeter 4, a side of the float flowmeter 4 is fixedly connected to a constant flow valve 3, both sides of the communicating vessel 2 are fixedly connected to connecting pipes 8, an end of the connecting pipe 8 away from the communicating vessel 2 is fixedly connected to a pressure stabilizing tank 5, one end of the differential pressure transmitter 1 and the pressure stabilizing tank 5 is fixedly connected to a fixing structure 6, and the fixing structure 6 A fixed pipe 7 is slidably connected in the middle, and a first air inlet 501, a second air inlet 502, a first air outlet 503 and a second air outlet 504 are installed on the surface of the pressure-stabilizing tank 5 away from the fixed pipe 7. The first air inlet 501, the second air inlet 502, the first air outlet 503 and the second air outlet 504 are arranged in a tic-tac-toe array, and the first air inlet 501, the second air inlet 502, the first air outlet 503 and the second air outlet 504 are fixedly connected to the connecting pipe 8 respectively.

[0037] like Figure 1 As shown, the first air inlet 501 is fixedly connected to the first connecting pipe 801, a one-way valve 16 is arranged in the middle of the first connecting pipe 801, the first connecting pipe 801 is fixedly connected to the communicating vessel 2 at one end away from the pressure-stabilizing tank 5, the second air inlet 502 is fixedly connected to the third connecting pipe 803, the third connecting pipe 803 is fixedly connected to the first control valve 10 at one end away from the pressure-stabilizing tank 5, the bottom end of the first control valve 10 is fixedly connected to the air inlet pipe 11, the first control valve 10 is fixedly connected to one side of the first control valve 10, and the other end of the fifth connecting pipe 805 is fixedly connected to the first connecting pipe 801.

[0038] like Figure 2 As shown, the first air outlet 503 is fixedly connected to the fourth connecting pipe 804, the fourth connecting pipe 804 is fixedly connected to the three-way valve 15 at one end away from the pressure-stabilizing tank 5, the bottom end of the three-way valve 15 is fixedly connected to the second control valve 14, the bottom end of the second control valve 14 is fixedly connected to the air outlet plug 13, the bottom open end of the air outlet plug 13 is fixedly connected to the bubbler 12, the other end of the three-way valve 15 is fixedly connected to the communicating vessel 2, the second air outlet 504 is fixedly connected to the second connecting pipe 802, the second connecting pipe 802 is fixedly connected to the communicating vessel 2 at one end away from the pressure-stabilizing tank 5, and a filter pressure reducing valve 9 is arranged in the middle of the second connecting pipe 802.

[0039] like Figure 3 As shown, the constant flow valve 3 includes an air inlet constant flow valve 301 and an air outlet constant flow valve 302, the float flowmeter 4 includes an air inlet float flowmeter 401 and an air outlet float flowmeter 402, a first interface 303 is provided at the bottom end of the constant flow valve 3, the top of the first interface 303 is fixedly connected to the top of the float flowmeter 4, a fourth interface 306 is provided at the bottom end of the constant flow valve 3, the fourth interface 306 is fixedly connected to the bottom end of the float flowmeter 4, and the connection end of the constant flow valve 3 and the communicating vessel 2 includes a second interface 304 and a third interface 305.

[0040] like Figure 4 As shown, the fixing structure 6 includes a first mounting plate 601 and a second mounting plate 602, the first mounting plate 601 and the second mounting plate 602 are symmetrically arranged, a threaded rod 603 is fixedly connected to the middle of the first mounting plate 601, the end of the threaded rod 603 away from the first mounting plate 601 is rotatably connected to the second mounting plate 602, a nut 604 is threadedly connected to the through end of the threaded rod 603, and a plurality of slide grooves 608 are arranged in the middle of the first mounting plate 601 and the second mounting plate 602. There are several clamping blocks 612 slidingly connected on the inner side of 608, and the several clamping blocks 612 are symmetrically arranged. A second sliding column 611 is fixedly connected to the side of the clamping blocks 612 away from each other. A first sliding groove 615 is arranged on the surface of the second sliding column 611. The surface of the second sliding column 611 is slidingly connected to a limiting sleeve 613, and the inner wall of the limiting sleeve 613 is fixedly connected to a limiting cylinder 617. The limiting cylinder 617 is meshed and slidably connected with the first sliding groove 615, and the limiting sleeve 613 is fixedly connected to the sliding groove 608.

[0041] like Figure 5 As shown, the interior of the second sliding column 611 is a hollow structure, and a slot 620 is provided on one side of the bottom end of the second sliding column 611. The sliding block 610 is slidably connected inside the slot 620. One end of the sliding block 610 is fixedly connected to a limiting block 616. The limiting block 616 is fixedly connected to the opening of the slot 620. The interior of the second sliding column 611 is slidably connected to the first sliding column 609. A second sliding groove 618 is provided on the surface of the first sliding column 609. The second sliding groove 618 is an N-type structure, and the sliding block 610 is meshed and slidably connected with the second sliding groove 618.

[0042] like Figure 7 As shown, a spring 614 is provided inside the second slide post 611, and the spring 614 is located between the second slide post 611 and the first slide post 609. The first slide post 609 is fixedly connected to a limiting ring 619 at one end away from the second slide post 611, and a fixing frame 605 is rotatably connected to the outer side of the limiting ring 619. The fixing frame 605 is fixedly connected to both sides of the first mounting plate 601. The first slide post 609 is rotatably connected to the fixing frame 605 through the first slide post 609, and a rotating plate 606 is fixedly connected to the through end of the first slide post 609, and a rotating handle 607 is rotatably connected to the surface of one end of the rotating plate 606.

[0043] Working principle: When installing the reactor group liquid inlet control device, separate the differential pressure transmitter and the fixed structure 6 at the rear of the pressure stabilizing tank 5, and rotate the rotating handle 607 to drive the rotating plate 606 to rotate, thereby making the first slide column 609 slide inside the second slide column 611. Since the second slide groove 618 is an N-shaped structure, the slider 610 can slide in the second slide groove 618, thereby realizing the limiting effect on the first slide column 609. When the first slide column 609 slides and drives the clamping block 612 to the appropriate position, the first mounting plate 601 is placed on both sides of the fixed tube 7, and the handle 607 can be loosened. At this time, the elastic force of the spring 614 will retract the first slide column 609, and the clamping block 612 will merge to clamp the fixed tube 7. Then, the second mounting plate 602 is fitted with the first mounting plate 601 in the same way, and the threaded rod 603 on the surface of the first mounting plate 601 passes through the second mounting plate 602. At this time, the nut 604 is used to tightly fit the first mounting plate 601 and the second mounting plate 602, and the pressure stabilizing tank 5 is fixed. In addition, the pressure stabilizing tank 5 is added so that the various interfaces of the pressure stabilizing tank 5 are connected to various places of the bubble level gauge through pipelines. After many tests and adjustments, the pressure stabilizing tank 5 realizes the pressure supply and pressure stabilization functions, so that the liquid level display is stable, so the process control is more precise and the product quality is more stable.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reactor liquid inlet control device, comprising a differential pressure transmitter (1), characterized in that: The sensing end of the differential pressure transmitter (1) is fixedly connected to a communicating vessel (2); the end of the communicating vessel (2) away from the differential pressure transmitter (1) is fixedly connected to a float flowmeter (4); one side of the float flowmeter (4) is fixedly connected to a constant flow valve (3); both sides of the communicating vessel (2) are fixedly connected to connecting pipes (8); the end of the connecting pipe (8) away from the communicating vessel (2) is fixedly connected to a pressure stabilizing tank (5); one end of the differential pressure transmitter (1) and the pressure stabilizing tank (5) is fixedly connected to a fixing structure (6); a fixing pipe (7) is slidably connected to the middle of the fixing structure (6); A first air inlet (501), a second air inlet (502), a first air outlet (503) and a second air outlet (504) are installed on a surface of the pressure stabilizing tank (5) away from the fixed pipe (7); the first air inlet (501), the second air inlet (502), the first air outlet (503) and the second air outlet (504) are arranged in a tic-tac-toe array; the first air inlet (501), the second air inlet (502), the first air outlet (503) and the second air outlet (504) are respectively fixedly connected to the connecting pipe (8).

2. A reactor liquid inlet control device according to claim 1, characterized in that: The first air inlet (501) is fixedly connected to a first connecting pipe (801), a one-way valve (16) is provided in the middle of the first connecting pipe (801), one end of the first connecting pipe (801) away from the pressure-stabilizing tank (5) is fixedly connected to the communicating vessel (2), the second air inlet (502) is fixedly connected to a third connecting pipe (803), one end of the third connecting pipe (803) away from the pressure-stabilizing tank (5) is fixedly connected to a first control valve (10), the bottom end of the first control valve (10) is fixedly connected to an air inlet cannula (11), one side of the first control valve (10) is fixedly connected to a fifth connecting pipe (805), the other end of the fifth connecting pipe (805) is fixedly connected to the first connecting pipe (801).

3. A reactor liquid inlet control device according to claim 1, characterized in that: The first air outlet (503) is fixedly connected to a fourth connecting pipe (804), and the fourth connecting pipe (804) is fixedly connected to a three-way valve (15) at one end away from the pressure-stabilizing tank (5), and the bottom end of the three-way valve (15) is fixedly connected to a second control valve (14), and the bottom end of the second control valve (14) is fixedly connected to an air outlet plug (13), and the bottom open end of the air outlet plug (13) is fixedly connected to a bubbler (12), and the other end of the three-way valve (15) is fixedly connected to the communicating vessel (2), and the second air outlet (504) is fixedly connected to a second connecting pipe (802), and the end of the second connecting pipe (802) away from the pressure-stabilizing tank (5) is fixedly connected to the communicating vessel (2), and a filtering pressure reducing valve (9) is arranged in the middle of the second connecting pipe (802).

4. A reactor liquid inlet control device according to claim 1, characterized in that: The constant flow valve (3) comprises an air inlet constant flow valve (301) and an air outlet constant flow valve (302); the float flow meter (4) comprises an air inlet float flow meter (401) and an air outlet float flow meter (402); a first interface (303) is provided at the bottom end of the constant flow valve (3); the top end of the first interface (303) is fixedly connected to the top end of the float flow meter (4); a fourth interface (306) is provided at the bottom end of the constant flow valve (3); the fourth interface (306) is fixedly connected to the bottom end of the float flow meter (4); and the connection end of the constant flow valve (3) and the communicating vessel (2) comprises a second interface (304) and a third interface (305).

5. The liquid inlet control device for a reactor according to claim 1, characterized in that: The fixing structure (6) comprises a first mounting plate (601) and a second mounting plate (602), wherein the first mounting plate (601) and the second mounting plate (602) are symmetrically arranged, a threaded rod (603) is fixedly connected to the middle of the first mounting plate (601), an end of the threaded rod (603) away from the first mounting plate (601) is rotatably connected to the second mounting plate (602), a nut (604) is threadedly connected to the through end of the threaded rod (603), a plurality of slide grooves (608) are arranged in the middle of the first mounting plate (601) and the second mounting plate (602), and the slide grooves (608) are connected to the second mounting plate (602). 08) There are a plurality of clamping blocks (612) slidingly connected on the inner side, and the plurality of clamping blocks (612) are symmetrically arranged. A second sliding column (611) is fixedly connected to the side of the clamping blocks (612) away from each other, and a first sliding groove (615) is arranged on the surface of the second sliding column (611). A limiting sleeve (613) is slidingly connected to the surface of the second sliding column (611), and a limiting cylinder (617) is fixedly connected to the inner wall of the limiting sleeve (613). The limiting cylinder (617) is meshed and slidably connected with the first sliding groove (615), and the limiting sleeve (613) is fixedly connected to the sliding groove (608).

6. A reactor liquid inlet control device according to claim 5, characterized in that: The interior of the second sliding column (611) is a hollow structure, and a groove (620) is provided on one side of the bottom end of the second sliding column (611). A slider (610) is slidably connected inside the groove (620). One end of the slider (610) is fixedly connected to a limiting block (616), and the limiting block (616) is fixedly connected to the opening of the groove (620). The interior of the second sliding column (611) is slidably connected to the first sliding column (609), and a second sliding groove (618) is provided on the surface of the first sliding column (609). The second sliding groove (618) is an N-type structure, and the slider (610) is meshed and slidably connected with the second sliding groove (618).

7. A reactor liquid inlet control device according to claim 6, characterized in that: A spring (614) is provided inside the second sliding column (611), and the spring (614) is located between the second sliding column (611) and the first sliding column (609). The first sliding column (609) is fixedly connected to a limiting ring (619) at one end away from the second sliding column (611), and a fixing frame (605) is rotatably connected to the outer side of the limiting ring (619). The fixing frame (605) is fixedly connected to both sides of the first mounting plate (601). The first sliding column (609) is rotatably connected to the fixing frame (605), and a rotating plate (606) is fixedly connected to the through end of the first sliding column (609), and a rotating handle (607) is rotatably connected to the surface of one end of the rotating plate (606).