Liquid sorting detection control device in dichloroacrylonitrile production
By introducing detection sensors and a partition design into the production of dichloroacrylonitrile, the problems of untimely operation and difficulty in stratification caused by manual observation have been solved, realizing automatic and accurate sorting of liquid materials and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-03-17
AI Technical Summary
In current dichloroacrylonitrile production, liquid sorting mainly relies on manual visual observation, which leads to untimely and inaccurate operation, easy misoperation, affecting product quality and raw material loss. Furthermore, the liquid material in the reactor is not easy to separate into layers, resulting in the introduction of impurities.
By combining detection sensors with observation mirrors, liquid materials are automatically identified through supplementary lighting and color brightness detection devices. With the design of upper and lower baffles and branch pipelines, dichloroacrylonitrile and impurities can be automatically separated, reducing the impact of turbulence.
It enables automatic and precise sorting of liquid materials, reduces human error, improves production efficiency and product quality, and ensures the separation of dichloroacrylonitrile and impurities.
Smart Images
Figure CN223996059U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a liquid sorting and detection control device in the production of dichloroacrylonitrile, and belongs to the field of liquid sorting and detection technology in the production of dichloroacrylonitrile. Background Technology
[0002] In the production process of dichloroacrylonitrile, raw material acrylonitrile and several other substances undergo chemical and physical reactions in a reactor to produce dichloroacrylonitrile and several other substances. During the discharge process at the bottom of the reactor, different substances need to be separated.
[0003] Currently, the common method for sorting is manual visual inspection. When dichloroacrylonitrile appears in the sight glass at the bottom of the reactor, a manual valve is opened to allow it to flow into the next stage through a pipeline. After the dichloroacrylonitrile has flowed out, the valve is manually closed. When liquid impurities appear in the sight glass at the bottom of the reactor, another manual valve is opened to drain them into an impurity container through a pipeline. After drainage, the valve is manually closed. This method requires time-consuming, focused, and meticulous manual observation. It is difficult to open and close valves quickly and accurately, and valve misoperation is prone to occur, resulting in raw material loss or incomplete separation, with impurities being mixed into the raw materials, thus affecting product quality and yield. In addition, when the reaction raw materials are injected into the reactor, the impact flow easily creates turbulence in the liquid material inside the reactor, making it difficult for dichloroacrylonitrile and liquid impurities to separate and drain separately.
[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] This invention addresses the shortcomings of the prior art by providing a liquid sorting and detection control device for dichloroacrylonitrile production, which can effectively separate dichloroacrylonitrile and liquid impurities in the reaction vessel, and can automatically detect dichloroacrylonitrile and impurities.
[0006] To solve the above technical problems, the present invention adopts the following technical solution:
[0007] A liquid sorting and detection control device for the production of dichloroacrylonitrile includes a reaction vessel, a main discharge pipe at the discharge port at the bottom of the reaction vessel, a main valve on a section of the main discharge pipe, an observation mirror at the lower end of the main discharge pipe, and a detection sensor installed on the main discharge pipe on the opposite side of the observation mirror.
[0008] The detection sensor includes a supplementary light source and color and brightness detection devices. The detection sensor is connected to the control component via a signal line. The control component includes a PLC and a touch screen.
[0009] Furthermore, a second branch pipe is connected to the lower end of the main discharge pipe, and a second discharge valve is provided on the pipe section of the second branch pipe.
[0010] Furthermore, an impurity container is provided at the outlet of the lower end of the second branch pipe.
[0011] Furthermore, the upper end of the second branch pipe is provided with a first branch pipe located below the detection sensor. The first branch pipe is connected to the upper end of the second branch pipe, and a first discharge valve is provided on the pipe section of the first branch pipe.
[0012] Furthermore, a main feed pipe is vertically installed inside the reactor. The lower end of the main feed pipe extends to a position slightly below the middle of the reactor. The bottom of the main feed pipe is sealed, and multiple discharge holes are opened on the periphery of the bottom end of the main feed pipe.
[0013] Furthermore, an upper baffle and a lower baffle are provided at intervals inside the reactor. The upper baffle is located above the discharge port of the main feed pipe, and the lower baffle is located below the discharge port of the main feed pipe. Multiple leakage holes are evenly distributed on the upper and lower baffles.
[0014] Furthermore, a level gauge is fixedly installed on the outer wall of the reactor, and the bottom of the level gauge is connected to the bottom of the reactor.
[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:
[0016] The detection sensor is positioned opposite the observation mirror. The supplementary light source of the detection sensor increases the brightness inside the observation mirror, making it easier for the human eye to observe. At the same time, it improves the detection sensor's accuracy in identifying the color and brightness of liquid materials, thereby enabling it to accurately detect whether the liquid material in the main discharge pipe is dichloroacrylonitrile or liquid impurities.
[0017] The upper baffle is located above the discharge port of the main feed pipe, and the lower baffle is located below the discharge port of the main feed pipe. Multiple leakage holes are evenly distributed on both the upper and lower baffles. The upper and lower baffles block the liquid material entering the reactor, reduce turbulence, and cause dichloroacrylonitrile and liquid impurities to separate into layers.
[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] In the picture,
[0021] 1-Reaction vessel, 2-Main feed pipe, 3-Discharge hole, 4-Upper baffle, 5-Lower baffle, 6-Level gauge, 7-Main discharge pipe, 8-Main valve, 9-Sight glass, 10-Detection sensor, 11-Control component, 12-First branch pipe, 13-First discharge valve, 14-Second branch pipe, 15-Second discharge valve, 16-Impurity container. Detailed Implementation
[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0023] like Figure 1 As shown, this utility model provides a liquid sorting detection and control device in the production of dichloroacrylonitrile, including a reaction vessel 1, a main discharge pipe 7 at the discharge port at the bottom of the reaction vessel 1, a main valve 8 on the pipe section of the main discharge pipe 7, an observation mirror 9 at the lower end of the main discharge pipe 7, and a detection sensor 10 installed on the main discharge pipe 7 on the opposite side of the observation mirror 9.
[0024] The detection sensor 10 includes a supplementary light source and color and brightness detection devices. The detection sensor 10 is connected to the control component 11 via signal lines. The control component includes a PLC and a touch screen. The control component 11 processes and judges the data collected by the detection sensor 10, displays it on the touch screen, and outputs control signals.
[0025] The detection sensor 10 is positioned opposite to the observation mirror 9. The supplementary light source of the detection sensor 10 increases the brightness inside the observation mirror 9, making it easier for the human eye to observe. At the same time, it improves the accuracy of the detection sensor 10 in identifying the color and brightness of liquid materials, thereby enabling it to accurately detect whether the liquid material in the main discharge pipe 7 is dichloroacrylonitrile or liquid impurities.
[0026] The lower end of the main discharge pipe 7 is connected to a second branch pipe 14, and a second discharge valve 15 is provided on the pipe section of the second branch pipe 14.
[0027] An impurity container 16 is provided at the outlet of the lower end of the second branch pipe 14.
[0028] The upper end of the second branch pipe 14 is located below the detection sensor 10 and is provided with a first branch pipe 12. The first branch pipe 12 is connected to the upper end of the second branch pipe 14, and a first discharge valve 13 is provided on the pipe section of the first branch pipe 12. The first branch pipe 12 is used to discharge dichloroacrylonitrile, and the second branch pipe 14 is used to discharge liquid impurities.
[0029] The reactor 1 is vertically equipped with a main feed pipe 2, the lower end of which extends to a position slightly below the middle of the reactor 1. The bottom of the main feed pipe 2 is sealed, and multiple discharge holes 3 are opened around the bottom of the main feed pipe 2. The liquid material discharged from the main feed pipe 2 is discharged horizontally through the discharge holes 3, reducing disturbance of the upper and lower layers of material in the reactor 1.
[0030] The reactor 1 is equipped with an upper baffle 4 and a lower baffle 5 spaced apart vertically. The upper baffle 4 is located above the discharge port 3 of the main feed pipe 2, and the lower baffle 5 is located below the discharge port 3 of the main feed pipe 2. Multiple leakage holes are evenly distributed on the upper baffle 4 and the lower baffle 5. The upper baffle 4 and the lower baffle 5 block the liquid material entering the reactor 1, reduce turbulence, and cause dichloroacrylonitrile and liquid impurities to separate into layers.
[0031] A level gauge 6 is also fixedly installed on the outer wall of the reactor 1, and the bottom of the level gauge 6 is connected to the bottom of the reactor 1.
[0032] The specific working principle of this utility model:
[0033] After the dichloroacrylonitrile reaction in reactor 1 is complete, the main valve 8 is opened, and the sight glass 9 is filled with liquid. The detection sensor 10 detects parameters such as the color and brightness of the liquid in the sight glass 9 and transmits them to the control unit 11 via a signal line. The PLC in the control unit 11 processes the transmitted data and determines whether it is dichloroacrylonitrile or an impurity, displaying the result on the touch screen. If the control signal determines that it is dichloroacrylonitrile, the first discharge valve 13 on the first branch pipe 12 is opened to discharge the dichloroacrylonitrile. After the dichloroacrylonitrile is discharged, this valve automatically closes. If the control signal determines that it is an impurity, the second discharge valve 15 on the second branch pipe 14 is opened. After the impurity is discharged, this valve automatically closes, thus ending the entire sorting process.
[0034] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.
Claims
1. A liquid fraction detection control device in dichloropropenenitrile production, characterized by: Including the reaction kettle (1), the discharge port of the bottom of the reaction kettle (1) is provided with a main discharge pipe (7), a total valve (8) is arranged on the pipe section of the main discharge pipe (7), an observation sight glass (9) is arranged at the lower end of the main discharge pipe (7), and a detection sensor (10) is installed on the main discharge pipe (7) at the position opposite to the observation sight glass (9); The detection sensor (10) includes a light supplement light source and a color and brightness detection device, and is connected with a control component (11) through a signal line, and the control component includes a PLC and a touch screen.
2. A liquid separation detection control device in dichloropropenenitrile production according to claim 1, characterized in that: The lower end of the main discharge pipe (7) is communicated with a second branch pipe (14), and the pipe section of the second branch pipe (14) is provided with a second discharge valve (15).
3. A liquid separation detection control device in dichloropropenenitrile production according to claim 2, characterized in that: An impurity container (16) is arranged at the outlet of the lower end of the second branch pipe (14).
4. A liquid separation detection control device in dichloropropenenitrile production according to claim 2, characterized in that: The upper end of the second branch pipe (14) is provided with a first branch pipe (12) on the lower side of the detection sensor (10), the first branch pipe (12) is communicated with the upper end of the second branch pipe (14), and the pipe section of the first branch pipe (12) is provided with a first discharge valve (13).
5. A liquid separation detection control device in dichloropropenenitrile production according to claim 1, characterized in that: The reaction kettle (1) is vertically provided with a main feeding pipe (2), the lower end of the main feeding pipe (2) extends to the position of the middle and lower side of the reaction kettle (1), the bottom of the main feeding pipe (2) is closed, and a plurality of discharge holes (3) are arranged on the circumferential side of the bottom end of the main feeding pipe (2).
6. A liquid separation detection control device in dichloropropenenitrile production according to claim 5, characterized in that: The reaction kettle (1) is vertically provided with a main feeding pipe (2), the lower end of the main feeding pipe (2) extends to the position of the middle and lower side of the reaction kettle (1), the bottom of the main feeding pipe (2) is closed, and a plurality of discharge holes (3) are arranged on the circumferential side of the bottom end of the main feeding pipe (2).
7. A liquid separation detection control device in dichloropropenenitrile production according to claim 1, characterized in that: The outer wall of the reaction kettle (1) is further provided with a liquid level meter (6), and the bottom of the liquid level meter (6) is communicated with the bottom of the reaction kettle (1).