Catalyst specific gravity continuous measuring device for chloroprene synthesis tower

Abstract

The utility model relates to the field of chemical engineering, in particular to a catalyst specific gravity continuous measuring device for a chloroprene synthesis tower. The catalyst specific gravity continuous measuring device for the chloroprene synthesis tower comprises a synthesis tower, a circulating pipe, an ultrasonic densimeter, a U-shaped frame, a clamping seat, a connecting rod, a water hose and a regulating valve, the synthesis tower is used for carrying out synthesis reaction of chloroprene, the circulating pipe is arranged on one side of the synthesis tower and used for circulating reaction liquid in the synthesis tower, and the ultrasonic densimeter is arranged on the U-shaped frame. An ultrasonic densimeter is mounted on one side of the circulating pipe and is used for measuring the specific gravity of the catalyst in the circulating liquid in real time. According to the catalyst specific gravity continuous measuring device for the chloroprene synthesis tower, the specific gravity of a catalyst in circulating liquid is continuously monitored in real time through the ultrasonic density instrument, the accuracy and the real-time performance of measured data are guaranteed, the measurement precision is improved through the application of the ultrasonic technology, and the measurement efficiency is improved. And the reaction conditions in the synthesis tower can be more accurately controlled.

Description

Technical Field

[0001] The utility model relates to the field of chemical engineering, in particular to a device for continuously measuring the specific gravity of a catalyst used in a chloroprene synthesis tower. Background Art

[0002] In the process of producing chloroprene from calcium carbide, the chloroprene process involves the reaction of hydrogen chloride and vinylacetylene in a synthesis tower. In this process, the specific gravity of the catalyst is a key factor affecting the reaction efficiency and product quality. The traditional method requires on-site operators to measure the specific gravity of the catalyst once every hour and inform the DCS operator of the data. The latter then manually adjusts the amount of soft water added according to the measurement data to control the specific gravity of the catalyst in the synthesis tower. However, this method has deficiencies such as low measurement frequency, strong operation dependence, and slow response speed, and it is difficult to meet the requirements of modern chemical production for efficient, stable, and continuous control. This method not only increases the labor intensity of the operators but also is difficult to ensure the accuracy of measurement and the timeliness of control.

[0003] Therefore, it is necessary to provide a new device for continuously measuring the specific gravity of a catalyst used in a chloroprene synthesis tower to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a device for continuously measuring the specific gravity of a catalyst used in a chloroprene synthesis tower.

[0005] The device for continuously measuring the specific gravity of a catalyst used in a chloroprene synthesis tower provided by the utility model includes:

[0006] A synthesis tower for carrying out the synthesis reaction of chloroprene;

[0007] A circulation pipe provided on one side of the synthesis tower for circulating the reaction liquid in the synthesis tower;

[0008] An ultrasonic densitometer installed on one side of the circulation pipe for continuously measuring the specific gravity of the catalyst in the circulating liquid in real time;

[0009] A U-shaped frame symmetrically sleeved outside the circulation pipe, and the U-shaped frame is respectively arranged on the upper and lower sides of the ultrasonic densitometer, and lugs are provided on one side of each U-shaped frame;

[0010] A clamping seat fixedly connected to both ends of the U-shaped frame;

[0011] A connecting rod provided on one side of the ultrasonic densitometer, both ends of the connecting rod are respectively slidably connected inside the corresponding lugs, both ends of the connecting rod are fixedly connected with a retaining piece, springs are sleeved on both sides of the connecting rod, and the retaining piece is elastically connected to the corresponding lug through the spring;

[0012] Flexible water pipe, a flexible water pipe is installed above the circulation pipe on one side of the synthesis tower;

[0013] Regulating valve, a regulating valve is installed on the flexible water pipe, and the regulating valve is electrically connected to the ultrasonic densitometer.

[0014] Preferably, a connecting pipe is provided at the top of the synthesis tower, and the connecting pipe is used to connect with the self-concentrating tower.

[0015] Preferably, a feed pipe is provided on one side at the bottom of the synthesis tower, and the feed pipe is used to inject vinyl acetylene raw material into the synthesis tower.

[0016] Preferably, a packing pipe is connected to one side of the circulation pipe, and the packing pipe is used to inject hydrogen chloride into the circulation pipe.

[0017] Preferably, a solenoid valve is installed at the connection between the flexible water pipe and the synthesis tower.

[0018] Preferably, guide posts are slidably connected between both sides of the U-shaped frame.

[0019] Preferably, soft pads are provided on the opposite sides of the clamping seat.

[0020] Compared with the related technology, the catalyst specific gravity continuous measurement device for a chloroprene synthesis tower provided by the present utility model has the following beneficial effects:

[0021] The present utility model provides a catalyst specific gravity continuous measurement device for a chloroprene synthesis tower. Through the ultrasonic densitometer, the real-time and continuous monitoring of the catalyst specific gravity in the circulating liquid is realized, ensuring the accuracy and timeliness of the measurement data. The application of ultrasonic technology improves the measurement accuracy, helps to more accurately control the reaction conditions in the synthesis tower. The design of the U-shaped frame and the clamping seat, combined with the elastic force of the spring, provides a stable installation environment for the ultrasonic densitometer, reduces the influence of external vibration on the measurement, improves the stability of the device. By combining with the regulating valve and the control system, the device can automatically adjust the addition amount of soft water according to the real-time measured catalyst specific gravity data, thereby realizing the precise control of the catalyst specific gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the catalyst specific gravity continuous measurement device for a chloroprene synthesis tower provided by the present utility model;

[0023] Figure 2 is Figure 1 the schematic structural diagram of the circulation pipe shown;

[0024] Figure 3 is Figure 2 the schematic structural diagram of the ultrasonic densitometer shown;

[0025] Figure 4 isFigure 3 Schematic structural diagram of the U-shaped frame shown

[0026] Reference numerals in the figure: 1, synthesis tower; 2, circulation pipe; 3, ultrasonic densitometer; 4, U-shaped frame; 5, lug; 6, clamping seat; 7, connecting rod; 8, baffle; 9, spring; 10, flexible water pipe; 11, regulating valve; 12, connecting pipe; 13, feed pipe; 14, packing pipe; 15, solenoid valve; 16, guide post; 17, soft pad. Specific implementation manners

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0029] Please refer to Figures 1 to 4 , a continuous catalyst specific gravity measuring device for a chloroprene synthesis tower, the continuous catalyst specific gravity measuring device for a chloroprene synthesis tower includes:

[0030] Synthesis tower 1, the synthesis tower 1 is used for carrying out the synthesis reaction of chloroprene;

[0031] Circulation pipe 2, a circulation pipe 2 is provided on one side of the synthesis tower 1, and the circulation pipe 2 is used for circulating the reaction liquid in the synthesis tower 1;

[0032] Ultrasonic densitometer 3, an ultrasonic densitometer 3 is installed on one side of the circulation pipe 2, and the ultrasonic densitometer 3 is used for measuring the specific gravity of the catalyst in the circulating liquid in real time;

[0033] U-shaped frame 4, U-shaped frames 4 are symmetrically sleeved outside the circulation pipe 2, and the U-shaped frames 4 are respectively arranged on the upper and lower sides of the ultrasonic densitometer 3, and lugs 5 are provided on one side of each U-shaped frame 4;

[0034] Clamping seat 6, clamping seats 6 are fixedly connected to both ends of the U-shaped frame 4;

[0035] Connecting rod 7, a connecting rod 7 is provided on one side of the ultrasonic densitometer 3, both ends of the connecting rod 7 are respectively slidably connected inside the corresponding lugs 5, baffle plates 8 are fixedly connected to both ends of the connecting rod 7, springs 9 are sleeved on both sides of the connecting rod 7, and the baffle plates 8 are elastically connected to the corresponding lugs 5 through the springs 9;

[0036] Flexible water pipe 10, a flexible water pipe 10 is installed above the circulation pipe 2 on one side of the synthesis tower 1;

[0037] Regulating valve 11, a regulating valve 11 is installed on the flexible water pipe 10, and the regulating valve 11 is electrically connected to the ultrasonic densitometer 3.

[0038] It should be noted that: The vinylacetylene raw material is injected into the synthesis tower 1 through the feed pipe 13, and hydrogen chloride is added to the circulation pipe 2 through the packing pipe 14 and reacts with vinylacetylene in the synthesis tower 1. The circulation pipe 2 ensures the circulating flow of the reaction liquid in the synthesis tower 1, making the catalyst evenly distributed. The ultrasonic densitometer 3 is installed on one side of the circulation pipe 2 and is used to measure the specific gravity of the catalyst in the circulating liquid in real time. The U-shaped frame 4 is designed to be easily sleeved on the circulation pipe 2. Using the elastic force of the spring 9, it is clamped on the upper and lower sides of the ultrasonic densitometer 3 through the clamping seat 6. The elastic force of the spring 9 not only provides an adjustment space for the installation of the clamping seat 6, ensuring stable and firm installation, but also plays a protective role for the ultrasonic densitometer 3, reducing the influence of external vibration on the measurement accuracy.

[0039] Please refer to Figures 1 to 4 , a connecting pipe 12 is provided at the top of the synthesis tower 1, and the connecting pipe 12 is used to connect with the self-concentrating tower;

[0040] It should be noted that: It is allowed to introduce a high-concentration catalyst solution from the self-concentrating tower to further improve the production efficiency;

[0041] Please refer to Figures 1 to 4 , a feed pipe 13 is provided on one side of the bottom of the synthesis tower 1, and the feed pipe 13 is used to inject the vinylacetylene raw material into the synthesis tower 1;

[0042] It should be noted that: Vinylacetylene is the basic raw material for the synthesis reaction;

[0043] Please refer to Figures 1 to 4 , a packing pipe 14 is connected to one side of the circulation pipe 2, and the packing pipe 14 is used to inject hydrogen chloride into the circulation pipe 2;

[0044] It should be noted that: Hydrogen chloride is another key raw material required for the synthesis reaction;

[0045] Please refer to Figures 1 to 4 , a solenoid valve 15 is installed at the connection between the soft water pipe 10 and the synthesis tower 1;

[0046] It should be noted that: The solenoid valve 15 is used to control the flow of soft water to ensure rapid and accurate adjustment of the catalyst specific gravity when needed;

[0047] Please refer to Figures 1 to 4 , guide posts 16 are slidably connected between both sides of the U-shaped frame 4;

[0048] It should be noted that: The guide posts 16 are slidably connected to both sides of the U-shaped frame 4 to provide additional stability;

[0049] Please refer to Figures 1 to 4 , soft pads 17 are provided on the opposite sides of the clamping seat 6;

[0050] It should be noted that: the soft pad 17 can reduce the friction and damage to the ultrasonic densitometer 3.

[0051] The working principle of the catalyst specific gravity continuous measurement device for chloroprene synthesis tower provided by the present utility model is as follows: vinyl acetylene raw material is injected into the synthesis tower 1 through the feed pipe 13, hydrogen chloride is added to the circulation pipe 2 through the packing pipe 14, and reacts with vinyl acetylene in the synthesis tower 1. The circulation pipe 2 ensures the circulating flow of the reaction liquid in the synthesis tower 1, making the catalyst evenly distributed. The ultrasonic densitometer 3 is installed on one side of the circulation pipe 2 for real-time measurement of the specific gravity of the catalyst in the circulating liquid. The design of the U-shaped frame 4 enables it to be easily sleeved on the circulation pipe 2. Using the elasticity of the spring 9, it is clamped on the upper and lower sides of the ultrasonic densitometer 3 through the clamping seat 6. The elasticity of the spring 9 not only provides an adjustment space for the installation of the clamping seat 6 to ensure stable and firm installation, but also plays a protective role for the ultrasonic densitometer 3, reducing the influence of external vibration on the measurement accuracy;

[0052] The control system receives the catalyst specific gravity data transmitted by the ultrasonic densitometer 3 and compares it with the preset target value. If the catalyst specific gravity is higher or lower than the target value, the control system will calculate the necessary control instructions;

[0053] The regulating valve 11 is installed on the soft water pipe 10 and is electrically connected to the control system. The control system controls the addition amount of soft water through the regulating valve 11, thereby adjusting the specific gravity of the catalyst. When the catalyst specific gravity is higher than the target value, the control system will instruct the regulating valve 11 to open to increase the addition amount of soft water to reduce the catalyst specific gravity. When the catalyst specific gravity is lower than the target value, the control system will instruct the regulating valve 11 to reduce the opening to reduce the addition amount of soft water to increase the catalyst specific gravity;

[0054] The solenoid valve 15 is installed at the connection between the soft water pipe 10 and the synthesis tower 1 to ensure the accurate control of the soft water flow. The combined use of the U-shaped frame 4 and the clamping seat 6, as well as the elastic design of the spring 9, enhances the stability and durability of the entire device;

[0055] The connecting pipe 12 allows the device to be connected to equipment such as self-concentrating towers to achieve continuous supply and recycling of the catalyst.

[0056] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A continuous measurement device for catalyst specific gravity of a chloroprene synthesis tower, characterized in that: include: A synthesis tower (1), wherein the synthesis tower (1) is used for carrying out a synthesis reaction of chloroprene; A circulation pipe (2), wherein a circulation pipe (2) is provided on one side of the synthesis tower (1), and the circulation pipe (2) is used to circulate the reaction liquid in the synthesis tower (1); An ultrasonic density meter (3), an ultrasonic density meter (3) is installed on one side of the circulation pipe (2), and the ultrasonic density meter (3) is used to measure the specific gravity of the catalyst in the circulating liquid in real time; A U-shaped frame (4), the outer side of the circulation pipe (2) is symmetrically covered with the U-shaped frame (4), and the U-shaped frame (4) is respectively arranged on the upper and lower sides of the ultrasonic density meter (3), and a lug (5) is provided on one side of the U-shaped frame (4); A clamping seat (6), both ends of the U-shaped frame (4) are fixedly connected to the clamping seat (6); A connecting rod (7), wherein one side of the ultrasonic density meter (3) is provided with a connecting rod (7), the two ends of the connecting rod (7) are respectively slidably connected to the inside of the corresponding lugs (5), the two ends of the connecting rod (7) are fixedly connected with baffles (8), the two sides of the connecting rod (7) are sleeved with springs (9), and the baffles (8) are elastically connected to the corresponding lugs (5) through the springs (9); A soft water pipe (10), wherein a soft water pipe (10) is installed on one side of the synthesis tower (1) above the circulation pipe (2); A regulating valve (11) is installed on the soft water pipe (10), and the regulating valve (11) is electrically connected to the ultrasonic density meter (3).

2. The catalyst specific gravity continuous measuring device for chloroprene synthesis tower according to claim 1, characterized in that: A connecting pipe (12) is provided at the top of the synthesis tower (1), and the connecting pipe (12) is used to be connected to the self-concentration tower.

3. The catalyst specific gravity continuous measuring device for chloroprene synthesis tower according to claim 1, characterized in that: A feed pipe (13) is provided at one side of the bottom of the synthesis tower (1), and the feed pipe (13) is used to inject vinyl acetylene raw material into the synthesis tower (1).

4. The catalyst specific gravity continuous measuring device for chloroprene synthesis tower according to claim 1, characterized in that: A filling pipe (14) is connected to one side of the circulation pipe (2), and the filling pipe (14) is used to inject hydrogen chloride into the circulation pipe (2).

5. The catalyst specific gravity continuous measuring device for chloroprene synthesis tower according to claim 1, characterized in that: A solenoid valve (15) is installed at the connection between the soft water pipe (10) and the synthesis tower (1).

6. The catalyst specific gravity continuous measuring device for chloroprene synthesis tower according to claim 1, characterized in that: Guide pillars (16) are slidably connected between both sides of the U-shaped frame (4).

7. The catalyst specific gravity continuous measuring device for chloroprene synthesis tower according to claim 1, characterized in that: Soft pads (17) are provided on opposite sides of the clamping seat (6).

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